When the first cold snap hits and radiators stay stubbornly cool, the fallout is immediate. Families crowd one room, electric fan heaters chew through kilowatts, and shower schedules become negotiations. I have spent enough winters answering calls across Leicester to know that most urgent boiler repair visits share one root cause: a small issue ignored through autumn becomes a major failure in January. Timely action, especially before the holidays, is the difference between comfort and chaos.
This guide distills what experienced local boiler engineers look for, the fixes that avert midwinter disasters, and the judgment calls that keep a system running safely. It is written with Leicester households and landlords in mind, from Victorian terraces off Narborough Road and West End HMOs to suburban semis in Oadby and Hamilton. The details change with building age and boiler type, but the principles travel well.
Cold weather exposes every weakness
A condensing gas boiler works hardest during freezing weeks. Flow temperatures rise, burner cycles increase, and every marginal component from the pump bearings to the ignition electrode faces higher stress. At the same time, cold air can freeze the condensate discharge, low mains gas pressure worsens ignition reliability in some streets, and sludge that sat relatively harmless all summer gets dragged through a diverter valve that now moves dozens of times a day.
Breakdowns cluster around:
- the first frosts when condensate pipes freeze mid December when usage spikes and overlooked maintenance surfaces the week after Christmas when holiday closures slow parts supply
Local emergency boiler repair becomes a triage exercise at those moments. Same day boiler repair slots fill before breakfast. The fastest and cheapest outcome still comes from preparation. The second best is knowing the safe steps to take while you wait for a boiler engineer, and which actions to avoid.
The most common faults we see in winter
Patterns repeat with gas boilers across Leicester. The symptoms vary, but the underlying mechanical and chemical realities are consistent.
A sticking diverter valve is a classic on combi boilers that short cycle for hot water all year but only pump space heating in winter. If you hear radiators go warm when you run a tap, or hot water temperature fluctuates wildly, the diverter is likely sticking or its motorized head is failing. Treat this early and you avoid a nightmare where neither heating nor hot water arrives on the coldest day.
Low system pressure is everywhere. Most modern sealed systems should sit around 1.0 to 1.5 bar cold. During a rush, I still walk into homes where the gauge reads 0.2 and the boiler locks out with an error code. Pressure drops for three common reasons: a slow micro leak at a radiator valve, air not fully bled after summer work, or a faulty expansion vessel losing precharge. Repressurizing is sometimes appropriate, but when pressure keeps falling there is a cause that needs investigation. I have traced stubborn drops to a single pinhole on a pipe disappearing under a kitchen, and in another case to a failed Schrader valve on the vessel that let the nitrogen charge bleed away.
Condensate freezing is the headline act every time the temperature stays below zero overnight. That white plastic 21.5 mm pipe running outdoors from the boiler trap can freeze if it is undersized or poorly routed. The boiler senses a backup and throws a fault code. I have unclogged lines full of ice, then returned two days later to fit a larger 32 mm line with proper gradient and insulation. A quick kettle pour can thaw a blockage in an emergency, but the long-term remedy involves pipe sizing, lagging, and minimizing external runs.
Ignition failures climb when spare air inlets gulp icy wind. Electrodes carbon up, spark gaps drift, and worn seals allow secondary air where it should not be. You will hear repeated clicking and a whoosh that never settles, then the unit locks out. Maintenance that cleans the burner and sets the electrode can restore first-time light-off, but persistent failures can point to a failing PCB or a fan with a tired motor.
Pump and sludge problems affect older systems and those with past radiator additions. Sludge thickens over the years from corrosion, especially where inhibitor levels were neglected. You notice cold spots at the bottom of radiators, kettling noises, and a pump that hums but does not move water with conviction. A powerflush is one option when the system is fundamentally sound; sometimes it makes more sense to replace an undersized or failing pump and fit a magnetic filter to capture circulating debris.
Flue and seal issues are not rare. High winds can show up a poorly supported flue terminal, and seals harden with age. Combustion becomes unstable and the unit trips on safety. This is precision work. It belongs to a Gas Safe registered boiler engineer with the right kit for flue gas analysis.
Preventive habits that actually prevent
A boiler service is not a box tick. The best visits feel boring to the customer because the engineer has already caught the faults before they escalate. On my most effective prewinter appointments, four habits add up to reliability through January and February.
First, measure and document. An annual service includes combustion readings with a calibrated analyzer: CO, CO2, flue gas temperature, and calculated efficiency. A quick look at a blue flame is not enough. Write the values down and track trends. A drifting CO value hints at a seal leak, a clogged heat exchanger, or a blocked air intake.
Second, check the expansion vessel, not just by tapping the casing, but by isolating the boiler side pressure and testing the Schrader valve with a gauge. Top it local emergency central heating repair up to the manufacturer’s spec, commonly 0.8 to 1.0 bar precharge on domestic models, and replace the valve core if it weeps. A healthy vessel prevents pressure spikes that provoke safety relief valve drips and chronic pressure loss.
Third, treat water chemistry seriously. Leicester has moderately hard water. In combis serving DHW, limescale on the plate heat exchanger reduces flow temperature under load and forces longer burner cycles. In heating circuits, inhibitor levels decline year by year. I carry quick test strips to measure inhibitor concentration and recommend topping up if it is low. A magnetic filter like an Adey MagnaClean or Spirotrap with annual cleaning catches black iron oxide before it lodges in valves and the boiler.
Fourth, protect the condensate run. Insulate exposed sections with weather rated lagging, route the discharge internally where possible, and increase to 32 mm diameter outside with continuous fall. That small change prevents dozens of calls when a cold snap hits.
Small parts, timely replacements, and better routing are boring for a reason. They work.
What a homeowner can safely do, and what to leave
Not every symptom demands local emergency boiler repair. Some checks are reasonable, safe, and can save you the cost of a callout. Others cross into gas work and should never be attempted by anyone unregistered.
Within the safe zone, verify system pressure on a sealed system and top up to around 1.2 bar while the system is cold, using the filling loop if you understand where it is. Bleed radiators that gurgle or have cold tops, starting with the upstairs rads and finishing closest to the boiler, then recheck pressure. Confirm the programmer or smart thermostat actually calls for heat. I have lost count of visits where a schedule change after a clock change left heating off. Check that the room thermostat is not tucked behind a curtain or above a radiator where it thinks the room is warmer than the rest of the house.
If the condensate pipe may be frozen, and you see it runs outside and the boiler shows a blockage fault, warming the outside section with warm, not boiling, water can free it. I have watched homeowners do this safely with a watering can, then lag the pipe sooner rather than later. This is an acceptable temporary measure.
Squarely outside the DIY zone lie anything involving the gas train, the burner, the flue, and internal sealed compartments of the boiler. That includes ignition electrodes, gas valves, fans, and any part that requires removing a combustion cover. Gas Safe rules exist for a reason. Even electrical diagnostics inside the case carry risk if you are not competent. When in doubt, stop. Book a professional gas boiler repair.
Why Leicester homes have their own boiler quirks
Local building stock shapes boiler behavior. Victorian terraces with single-pipe or adapted two-pipe systems sometimes deliver poor circulation to distant radiators, especially after loft conversions that lifted runs higher than the original pump head can serve. Narrow-bore microbore retrofits can sludge quickly and tax pumps.
Student HMOs and rental flats near the city centre often have high hot water draw in peaks with multiple showers, which highlights plate heat exchanger performance and limescale sensitivity. I have seen combis oversized for heat but undersized for simultaneous DHW demand in these properties, driving short cycling in winter and faster wear on diverter valves.
Newer estates like Hamilton or Thurmaston frequently combine sealed system boilers with unvented cylinders and motorized S-plan or Y-plan zoning. Faults show up less in the boiler and more in components like zone valves, thermostats, or cylinder sensors. An engineer who knows local installers’ common wiring conventions will diagnose faster because they anticipate the exact mistakes seen repeatedly.
Water hardness around Leicester varies. Scale build-up is not as extreme as in some southern regions, but it is persistent. A plate heat exchanger can lose 10 to 15 percent performance in a couple of years without treatment. Small numbers, big effects during a cold snap.
Understanding these patterns informs smart maintenance plans and the right spares to keep on the van during winter. It also informs how you choose a tradesperson.
Choosing the right professional when speed matters
There is a difference between a capable heating installer and a responsive repair specialist. For urgent boiler repair in January, prioritize firms known for diagnostics and carrying common spares. The best local boiler engineers prepare for the season with manufacturer training and a trunk stock of ignition electrodes, diverter valve heads, pumps, fans for common models, and PCB options for boilers that dominate the local housing stock.
If you are seeking boiler repair Leicester during peak weeks, a few signals help: actual same day boiler repair availability posted in the morning, a receptionist or dispatcher who asks for the boiler make and model upfront, and the promise of a time window that respects school runs and work. Ask pointed questions. Do they have flue gas analyzers in calibration? Do they perform and record a combustion check after a gas adjustment? Are they Gas Safe registered, and will the certificate details be on the invoice? Good engineers welcome those questions.
For landlords and agents, a service package tied to CP12 gas safety checks with priority callouts offers leverage when a tenant’s heat fails at 7 pm. The best relationships are built in October, not on Boxing Day. Some firms offer boiler repair same day appointments only to contract clients when demand spikes. That is not favoritism, it is survival triage.
A practical prewinter readiness checklist
- Book an annual service before November that includes combustion analysis, vessel check, and inhibitor test. Check system pressure and bleed radiators, then rebalance rooms that consistently run cooler. Upgrade or lag external condensate pipework to 32 mm with continuous fall to a safe drain. Fit or clean a magnetic filter, and top up inhibitor to the manufacturer’s concentration. Test your thermostat schedule and TRVs, and replace weak batteries on wireless controls.
Each item costs less than a single emergency callout if neglected. Done well, they compound to a system that glides through winter.
When the boiler stops on the coldest evening
- Confirm power and controls: is the fused spur on, is the programmer calling for heat, is the thermostat above room temperature. Check pressure on sealed systems and top to 1.2 bar cold if it is below 0.5 bar, then reset the boiler. If you suspect a frozen condensate pipe, gently warm the outdoor section with warm water and reattempt reset. Turn off electric fires and ovens used as substitute heat sources; use safe portable heaters in clear spaces if necessary. Call a local emergency boiler repair service, provide the make, model, and any fault code, and ask for ETA and any interim safety steps.
If at any point you smell gas, hear arcing within the boiler, or see evidence of overheating, switch off the appliance, isolate gas at the meter if safe, and contact the emergency number.
What “same day” really means, and how to use it
Marketing often promises miracles. In practice, same day boiler repair implies triage, diagnostic confirmation, and one of two outcomes: a first-time fix from stocked parts or a stabilization plus parts order for next day. A good dispatcher will assess over the phone whether a likely part is in stock. For common boilers around Leicester, first visits fix more than half of breakdowns within 90 minutes on site. The rest often wait on a specific PCB, fan assembly, or bespoke gasket set.
Make your appointment count. Have the boiler manual if you keep it, or at least the model number and serial. Clear access to the boiler and airing cupboard. If the boiler is in a cramped kitchen, clear the worktop and sink. If the property is a rental, obtain permission for parts spend up to a threshold so delays do not stall work. The fastest same day outcomes happen where details flow and decisions are preapproved.
Money, warranties, and when repair stops making sense
Budgets matter, especially around the holidays. Simple repairs such as a new flame sensor or basic valve motor replacement might come in at 90 to 180 pounds labor plus a small part. Diverter valve assemblies, pumps, and fans can range between 200 and 450 pounds parts and labor depending on brand. A PCB can cost more. Emergency callout premiums are normal after hours, sometimes adding 50 to 100 pounds.
Warranties add a layer. If your boiler is still within manufacturer warranty, any non service labor on the boiler itself should pass through an approved engineer. Keep an unbroken service history. Missing a year can void cover. For out of warranty units beyond 10 to 12 years, costs deserve scrutiny. If you face a 450 pound repair on an 18 year old non condensing boiler with poor parts availability, it may be time to consider replacement. A modern condensing boiler with weather compensation control can shave 10 to 15 percent off gas use, which matters in a cold winter.
No one wants to talk replacement in January. Still, a seasoned boiler engineer should outline the honest economics. Temporary repairs to limp through to March can be better than a rushed swap in a holiday week.
Real cases from recent winters
One Boxing Day, a call from a terraced house near Clarendon Park reported no heat and a loud buzzing. The system pressure read 0.3 bar, the pump was seized, and the boiler locked out with overheat. The house had been extended the previous summer, two new radiators added, but the system never rebalanced and inhibitor not topped up. Sludge took the pump. We fitted a new pump from van stock, cleaned the magnetic filter that had been stuck closed since installation, bled and balanced, then scheduled a powerflush in the quieter first week of January. That one repair likely saved a diverter valve from future strain. A year later, the same system sailed through with pressure rock steady.
Another winter in Birstall, a combi fed a family of five. Hot water was tepid in the evenings, heating sporadic. A plate heat exchanger was half choked with limescale. Mains water tested at 220 ppm hardness. We installed a scale reducer on the cold feed to the boiler, descaled the plate, replaced worn O-rings, and reset the boiler’s hot water temperature. The parents called a week later to say two showers could run sequentially without a temperature rollercoaster. Winter stress does not always come from the heating circuit.
In a student HMO off London Road, the boiler tripped repeatedly at 6 am. The fault only appeared in wind. Combustion analysis was fine at midday. The culprit turned out to be an exposed flue terminal with a damaged terminal guard and poor rear support. Gusts disturbed the fan pressure balance at ignition. We refixed the flue, replaced the guard, checked seals, and verified stable ignition in windy conditions. Problems that look random often obey physics under specific weather.
Controls, comfort, and the part software plays
Modern boilers can do more than brutally run on and off based on a dumb wall stat. Weather compensation and load compensation improve comfort and reduce stress on components. A modulating boiler told to run with outdoor reset maintains a lower, steadier flow temperature most of the day instead of short cycling at high flame in pulses. Rooms feel more even, and the boiler experiences fewer thermal shocks.
In Leicester, where shoulder seasons can swing between mild afternoons and frosty nights in the same week, a smart thermostat that actually uses modulation protocols like OpenTherm pairs well with a compatible boiler. Not all smart stats do; many act as simple on-off switches with fancy apps. Chosen well, controls shave peak demands and lengthen component life. Cheaper to maintain often means cheaper to run.
Thermostatic radiator valves, or TRVs, are not just for looks. Balanced correctly, they prevent overheated upstairs rooms from stealing flow that downstairs radiators need. They work best when the system itself is balanced by lockshields, a task often skipped during quick installs. When a client says the dining room never gets warm, the fix can be a 20 minute rebalance and a small twist on a lockshield, not a new boiler.
Safety is not negotiable
Heating failures push people toward unsafe ideas. Ovens left open for heat, portable gas heaters brought into small rooms, or blocked vents stuffed to stop drafts are all too common. I have refused to restart boilers where surrounding ventilation had been compromised by accident or desperation.
Carbon monoxide risks increase with poorly maintained appliances. A working CO alarm with a fresh battery sounds boring until the day it saves a life. Every gas boiler repair should end with a combustion check. Any signs of incomplete combustion, high CO, or poor flue performance must be put right before the boiler is left running. If parts are not available, a professional will make the unit safe and advise alternatives. Push back against anyone willing to leave a suspect boiler running in winter “just for the night.”
The specifics of landlord responsibilities
For landlords in Leicester, the annual gas safety record, commonly called a CP12, is mandatory where gas appliances exist. Many assume this certificate equals a service. It does not. A safety inspection verifies safe operation, ventilation, flue condition, and basic checks. It is not a comprehensive strip down service with part inspection and water chemistry testing. The smart move is pairing them once a year in early autumn, ensuring tenant notice is served early and reappointments allowed for. Tenants are more cooperative when the heating season has not yet arrived. Landlords who do this rarely call for urgent boiler repair because the serious issues were already fixed.
Student lets run on a different rhythm. Tenancies often start in July or August. Doing the CP12 then and a midwinter quick check in December helps catch the characteristic wear patterns of high DHW draw and frequent thermostat fiddling.
Parts availability and the January squeeze
Even with the best preparation, a fault can need a specific part. National spares networks slow down between Christmas and New Year. Leicester’s best stocked suppliers keep common items for Worcester Bosch, Vaillant, Ideal, Baxi, and Glow-worm on the shelf, but obscure models or older boilers can face a three day wait. Good local boiler engineers hedge against this by cross-referencing part numbers across brands where compatible, and by offering temporary workarounds, such as fitting a universal pump while a brand-specific assembly ships. Honest communication matters here. Knowing early whether a first-time fix is likely helps you decide on backup heating, work-from-home plans, or even a short hotel stay for a vulnerable relative.
Health and vulnerability considerations
For households with infants, elderly residents, or anyone with health conditions aggravated by cold, waiting even 24 hours can be risky. Most reputable providers will bump urgent boiler repair requests for vulnerable clients. Tell the dispatcher upfront. Provide evidence if asked. I have rearranged my day more than once to restore heat to a 90 year old client first, while a healthy couple accepted a next morning slot. The community we serve is not abstract.
If someone in the home uses oxygen or other medical equipment, flag that immediately. Combustion safety interacts with oxygen use, and some portable heaters are unsuitable. A professional will advise on safe interim measures.
Balancing heat distribution and system hydraulics
It is easy to blame the boiler for what is, in truth, a distribution problem. Long loops, microbore constraints, and poor previous additions can leave one room perennially cold. Hydronic balancing is tedious, but it prevents callouts that end with “the boiler is fine.” An engineer trained in balancing will map the system, set pump speed appropriately, and adjust each lockshield for a temperature drop across each radiator within target margins, commonly around 10 to 12 degrees Celsius in condensing mode. I have turned whole seasons around for households by replacing one loud and oversized pump with a variable speed unit set correctly, then balancing. Comfort goes up, bills go down, stress on the boiler drops.
The case for measured upgrades, not just fixes
Each repair visit is a chance to notch your system forward. A condensate trap redesign, a better filter, an outdoor sensor for weather compensation, or a more reliable thermostat can save a future callout. The best gas boiler repair professionals think in terms of the next winter, not just the next hour. They know that small design corrections multiply. When a client says, “We had no breakdowns this year,” that is the quietest compliment.
For landlords, trend reports from service visits make portfolio planning easier. If three of your combis are the same age and model, a spate of diverter valve failures in one suggests buying spares ahead or considering staggered replacements before peak season. Spares on hand can convert an emergency to a same day boiler repair without supplier delays.
Regional networks and why local knowledge wins
Searching boiler repairs Leicester at 8 pm returns a wall of options. Local knowledge keeps you from the roulette wheel. An engineer who has already thawed half the estate’s condensate pipes will know where frost pockets sit. One who has dealt with a known batch fault on a run of boilers from a builder’s development will arrive with the exact PCB revision needed. Experience compresses diagnosis time. It also means the engineer has rapport with local merchants for after hours pickups, or with neighboring trades if a hidden leak requires a carpenter to lift boards. Leicester is a big small city. Relationships move parts and people faster than a national call center in winter.
A final word on timing and temperament
The timing that prevents breakdowns looks like this: service and small corrective works in September or October, a quick pressure and control check in late November, and a phone number for someone you trust in your contacts list just in case. Temperament matters too. Panic leads to poor decisions, half measures, and unsafe improvisation. Stay methodical. Take the safe homeowner steps. Then bring in a professional whose day job is turning winter drama into quiet radiators and steady showers.
If you need prompt help, look for boiler repair Leicester providers who can honestly offer same day visits during the peak, who communicate clearly, and who document their work. Local emergency boiler repair is most effective when you and your engineer act as a team: you describe the symptoms and history, they bring the tools, parts, and practiced judgment. Between those two, winter remains cold only outside.
And when it all holds together on a frosty morning, the sign of success is almost nothing at all. The boiler fires, settles into a low, even burn, radiators purr, and hot water flows without fuss. That quiet is what timely care buys.
Local Plumber Leicester – Plumbing & Heating Experts
Covering Leicester | Oadby | Wigston | Loughborough | Market Harborough
0116 216 9098
[email protected]
www.localplumberleicester.co.uk
Local Plumber Leicester – Subs Plumbing & Heating Ltd deliver expert boiler repair services across Leicester and Leicestershire. Our fully qualified, Gas Safe registered engineers specialise in diagnosing faults, repairing breakdowns, and restoring heating systems quickly and safely. We work with all major boiler brands and offer 24/7 emergency callouts with no hidden charges. As a trusted, family-run business, we’re known for fast response times, transparent pricing, and 5-star customer care. Free quotes available across all residential boiler repair jobs.
Service Areas: Leicester, Oadby, Wigston, Blaby, Glenfield, Braunstone, Loughborough, Market Harborough, Syston, Thurmaston, Anstey, Countesthorpe, Enderby, Narborough, Great Glen, Fleckney, Rothley, Sileby, Mountsorrel, Evington, Aylestone, Clarendon Park, Stoneygate, Hamilton, Knighton, Cosby, Houghton on the Hill, Kibworth Harcourt, Whetstone, Thorpe Astley, Bushby and surrounding areas across Leicestershire.
Google Business Profile:
View on Google Search
About Subs Plumbing on Google Maps
Knowledge Graph
Latest Updates
Follow Local Plumber Leicester:
Facebook |
Instagram
Visit @subs_plumbing_and_heating on Instagram
Gas Safe Boiler Repairs across Leicester and Leicestershire – Local Plumber Leicester (Subs Plumbing & Heating Ltd) provide expert boiler fault diagnosis, emergency breakdown response, boiler servicing, and full boiler replacements. Whether it’s a leaking system or no heating, our trusted engineers deliver fast, affordable, and fully insured repairs for all major brands. We cover homes and rental properties across Leicester, ensuring reliable heating all year round.
❓
Q. How much should a boiler repair cost?
A. The cost of a boiler repair in the United Kingdom typically ranges from £100 to £400, depending on the complexity of the issue and the type of boiler. For minor repairs, such as a faulty thermostat or pressure issue, you might pay around £100 to £200, while more significant problems like a broken heat exchanger can cost upwards of £300. Always use a Gas Safe registered engineer for compliance and safety, and get multiple quotes to ensure fair pricing.
❓
Q. What are the signs of a faulty boiler?
A. Signs of a faulty boiler include unusual noises (banging or whistling), radiators not heating properly, low water pressure, or a sudden rise in energy bills. If the pilot light keeps going out or hot water supply is inconsistent, these are also red flags. Prompt attention can prevent bigger repairs—always contact a Gas Safe registered engineer for diagnosis and service.
❓
Q. Is it cheaper to repair or replace a boiler?
A. If your boiler is over 10 years old or repairs exceed £400, replacing it may be more cost-effective. New energy-efficient models can reduce heating bills by up to 30%. Boiler replacement typically costs between £1,500 and £3,000, including installation. A Gas Safe engineer can assess your boiler’s condition and advise accordingly.
❓
Q. Should a 20 year old boiler be replaced?
A. Yes, most boilers last 10–15 years, so a 20-year-old system is likely inefficient and at higher risk of failure. Replacing it could save up to £300 annually on energy bills. Newer boilers must meet UK energy performance standards, and installation by a Gas Safe registered engineer ensures legal compliance and safety.
❓
Q. What qualifications should I look for in a boiler repair technician in Leicester?
A. A qualified boiler technician should be Gas Safe registered. Additional credentials include NVQ Level 2 or 3 in Heating and Ventilating, and manufacturer-approved training for brands like Worcester Bosch or Ideal. Always ask for reviews, proof of certification, and a written quote before proceeding with any repair.
❓
Q. How long does a typical boiler repair take in the UK?
A. Most boiler repairs take 1 to 3 hours. Simple fixes like replacing a thermostat or pump are usually quicker, while more complex faults may take longer. Expect to pay £100–£300 depending on labour and parts. Always hire a Gas Safe registered engineer for legal and safety reasons.
❓
Q. Are there any government grants available for boiler repairs in Leicester?
A. Yes, schemes like the Energy Company Obligation (ECO) may provide grants for boiler repairs or replacements for low-income households. Local councils in Leicester may also offer energy-efficiency programmes. Visit the Leicester City Council website for eligibility details and speak with a registered installer for guidance.
❓
Q. What are the most common causes of boiler breakdowns in the UK?
A. Common causes include sludge build-up, worn components like the thermocouple or diverter valve, leaks, or pressure issues. Annual servicing (£70–£100) helps prevent breakdowns and ensures the system remains safe and efficient. Always use a Gas Safe engineer for repairs and servicing.
❓
Q. How can I maintain my boiler to prevent the need for repairs?
A. Schedule annual servicing with a Gas Safe engineer, check boiler pressure regularly (should be between 1–1.5 bar), and bleed radiators as needed. Keep the area around the boiler clear and monitor for strange noises or water leaks. Regular checks extend lifespan and ensure efficient performance.
❓
Q. What safety regulations should be followed when repairing a boiler?
A. All gas work in the UK must comply with the Gas Safety (Installation and Use) Regulations 1998. Repairs should only be performed by Gas Safe registered engineers. Annual servicing is also recommended to maintain safety, costing around £80–£120. Always verify the engineer's registration before allowing any work.
Local Area Information for Leicester, Leicestershire