Boiler repairs start from £90 + VAT. The final cost depends on the fault and any parts the boiler needs.
Which boiler brands do you repair?
We repair all boiler brands. For new boilers we install Baxi, Worcester Bosch, Ideal and Viessmann.
Are you Gas Safe registered?
Yes. CombiCert Ltd is Gas Safe registered, number 621146. You can check this number on the Gas Safe Register.
Which areas do you cover?
For homes we cover Telford and the rest of Shropshire. Commercial work covers Telford, Shropshire, the West Midlands and further afield, and we install plant rooms UK-wide.
How do I book?
Call or WhatsApp 07393 220694, email hello@combicert.co.uk, or send an enquiry through the website and choose a callback time: as soon as possible, morning, afternoon or evening.
Local Gas Safe engineers for boiler repairs across Telford — diagnosis first, honest advice on repair or replace.
Need a boiler repair in Telford?
Gas Safe engineer on the tools — not a call centre.
Boiler stopped working? No heating or hot water? Losing pressure, leaking, making unusual noises or showing a fault code?
CombiCert provides professional boiler repairs throughout Telford and the surrounding area. We are Gas Safe registered heating engineers with extensive experience diagnosing and repairing domestic gas boilers from the major manufacturers.
Our approach is simple: diagnose the actual fault first, explain what has failed and tell you whether the boiler is worth repairing. We do not replace parts unnecessarily and we will tell you if repairing an ageing boiler no longer makes financial sense.
We repair gas boilers in homes throughout Telford, Wellington, Dawley, Madeley, Lawley, Priorslee, Muxton, Ironbridge, Newport and surrounding areas.
Whether your boiler has stopped completely or has developed an intermittent fault, we will investigate the cause and explain the options before carrying out repairs. Where possible, we aim to repair faults rather than simply replace components until the problem disappears.
Boiler faults can appear in dozens of different ways. Some are straightforward, while others require proper fault finding rather than guesswork.
Boiler not firing or starting
No heating
No hot water
Boiler repeatedly losing pressure
Boiler pressure too high
Water leaking from the boiler
Radiators not heating correctly
Boiler switching itself off
Ignition and flame failure faults
Pump faults
Diverter valve problems
Thermostat and heating control faults
Sensors and temperature faults
Unusual banging, vibrating or kettling noises
Error codes displayed on the boiler
Intermittent faults that keep returning
If your boiler is displaying an error code, make a note of it before calling us. The code does not always identify the failed component, but it can give us useful information before we arrive.
Proper Boiler Fault Finding
Good boiler repair starts with diagnosis.
Modern boilers contain pumps, fans, gas valves, ignition systems, sensors, electronic controls, pressure components and safety devices. A fault showing on the display does not necessarily mean the component named in the fault code is actually defective.
We test the boiler and heating system systematically to establish why the fault has occurred. That might include checking system pressure, electrical signals, sensors, combustion, gas supply, pumps, valves, controls and the condition of the surrounding heating system.
The objective is to repair the cause of the problem, not simply reset the boiler and hope it stays running.
Which Boiler Brands Do We Repair?
CombiCert works on most common domestic gas boiler manufacturers including:
Baxi
Worcester Bosch
Vaillant
Ideal
Viessmann
Main
Potterton
Glow-worm
Alpha
If your boiler manufacturer is not listed, call us with the make and model and we can normally tell you whether we can help.
Combi, System and Conventional Boiler Repairs
We repair combi boilers, system boilers and conventional heat-only boilers.
Not every heating fault is actually caused by the boiler. Problems can also originate from pumps, motorised valves, thermostats, hot-water cylinders, zone controls, expansion vessels or the heating system itself.
Diagnosing the whole system rather than concentrating only on the appliance often prevents unnecessary boiler repairs.
Is Your Boiler Worth Repairing?
In many cases, yes.
A single failed component does not automatically mean you need a new boiler. However, there comes a point where repeatedly repairing an old appliance becomes poor value.
We consider the age and overall condition of the boiler, the cost of the repair, availability of replacement parts, previous breakdown history and whether other expensive components are likely to fail soon.
If repairing the boiler makes sense, we will tell you. If replacement would be the more sensible long-term decision, we will explain why and let you decide.
Why Choose CombiCert for Boiler Repairs in Telford?
Gas Safe registered engineers
Established Telford heating company
Experienced boiler fault diagnosis
Domestic and commercial gas engineering experience
Repairs on most major boiler manufacturers
Clear explanation of faults and repair options
Strong local customer reviews
Local coverage throughout Telford and surrounding areas
CombiCert works on everything from domestic boilers to substantially larger commercial heating equipment. That broader engineering experience is particularly useful when diagnosing faults that are not immediately obvious.
Boiler Repair for Landlords and Letting Properties
We also provide boiler repairs for landlords, letting agents and rented properties throughout Telford.
If a tenant reports no heating, no hot water or a boiler fault, contact us with the property address, boiler make and model and any fault code shown on the display. This information can help us prepare for the visit.
Before You Book a Boiler Repair: Five Safe Checks
Some boiler breakdowns turn out to be a setting or supply problem. These checks are safe for anyone to do and need no tools. Never take the boiler casing off: anything inside it is work for a Gas Safe registered engineer.
Power. Is the display lit? Check the fused switch next to the boiler and your consumer unit.
Gas. Is the hob or another gas appliance working? On a prepayment meter, check there is credit.
Pressure. On most sealed combi and system boilers the gauge should read roughly 1 to 1.5 bar with the heating cold. Your manual gives the exact figure.
Controls. Make sure the thermostat is set above room temperature and the timer or app is actually calling for heat.
Frozen condensate pipe. In freezing weather a condensing boiler can lock out if the plastic pipe running outside freezes. Pour warm, not boiling, water along it, then reset the boiler once.
If the boiler still will not run after one reset, leave it off and call us. Repeated resets can hide a fault rather than fix it. Our guide to what to check when your boiler is not working has more detail.
How a repair visit works
When you book, we ask for the make, model and any fault code so we can bring the likely parts where possible. On site we test before replacing anything, then tell you what has failed and what the repair will cost before we start. Some parts have to be ordered from the manufacturer; if so, we leave the boiler safe and come back to fit them.
CombiCert installs Baxi, Worcester Bosch, Ideal and Viessmann boilers, so we know those boilers well, and we repair the other major makes listed above. Many faults are picked up early at an annual boiler service in Telford. If water is pouring from the boiler or pipework, go straight to our emergency plumber in Telford page.
Boiler Repair FAQs
How quickly can you attend a boiler breakdown in Telford?
Availability varies depending on workload and the time of year. Call us and we will tell you the earliest appointment we can offer. During colder weather boiler repair demand can increase significantly, so contacting us as soon as a fault develops is advisable.
Why does my boiler keep losing pressure?
Pressure loss can be caused by leaks within the heating system, expansion vessel problems, pressure relief valve faults or components inside the boiler. Repeatedly topping the pressure back up without finding the cause is not a permanent repair.
Why is my boiler working but I have no hot water?
The cause depends on the type of boiler and heating system. On a combi boiler it may involve a diverter valve, sensor, flow detection or another internal component. On systems with a hot-water cylinder, the fault may be outside the boiler entirely.
Can you repair a leaking boiler?
Often, yes. The cause may be a seal, valve, pipe connection or internal component. However, water and gas appliances should not be ignored. If water is leaking from your boiler, switch the appliance off if it is safe to do so and contact a Gas Safe registered engineer.
Can you repair my boiler on the first visit?
Many faults can be repaired during the initial visit, particularly where common components are involved. Some repairs require manufacturer-specific parts that need to be ordered. We will explain this once the fault has been diagnosed.
Do you repair older boilers?
Yes, provided the boiler remains safe to work on and suitable parts are available. With very old appliances, we will also discuss whether the repair represents good value compared with replacement.
Do you repair boilers for landlords?
Yes. We work with homeowners, landlords and letting properties throughout Telford and the surrounding area.
Which areas do you cover?
Our domestic boiler repair work primarily covers Telford and nearby areas including Wellington, Dawley, Madeley, Lawley, Priorslee, Muxton, Ironbridge and Newport. Contact us if you are slightly outside these areas as we may still be able to help.
Is it safe to keep resetting my boiler?
Reset it once. If it locks out again, leave it off and call a Gas Safe registered engineer. Repeated resets do not cure the cause, and with some faults they can make things worse.
Can a frozen condensate pipe stop my boiler working?
Yes. In freezing weather the plastic condensate pipe can freeze where it runs outside, and the boiler locks out. Thawing it with warm, not boiling, water and resetting once often gets it going again. If it keeps happening, the pipe may need insulating or rerouting.
What pressure should my boiler show?
On most sealed combi and system boilers, around 1 to 1.5 bar when the heating is cold. Check your manual for your model. If you keep having to top it up, there is a leak or a faulty part that needs finding.
Which boiler makes do you repair?
All of them. CombiCert installs Baxi, Worcester Bosch, Ideal and Viessmann boilers, and we also repair Vaillant, Potterton, Glow-worm, Alpha and Main boilers.
If a failed tightness test raises questions, see our gas pipe check in Telford before deciding on repair or replacement.
Google reviews
★★★★★
“After the boiler suddenly having no power running to it, within 2 hours of calling Pete, he had attended, identified the fault and got us back up and running. Very professional and efficient service.”
Ed H. · Google review
★★★★★
“No hot water/heating all night for my elderly parents... called Pete first thing this morning... Resolved immediate issues. Very professional, generous and kind.”
Mo F. · Google review
★★★★★
“Boiler went down early morning at our Telford rental and they were over and sorted it by lunch. Highly recommend.”
CombiCert Ltd. Registered in England and Wales, company no. 12155826. Registered office: The Old School House, Park Lane, Telford, Shropshire, TF3 4TG.
