Boiler Repairs
& Fault Finding
in Romford
Get your heating and hot water back by finding the real fault, not swapping parts until something works. Mitchell can explain whether repair or replacement is appropriate.
98% recommend on Facebook · 5.0 on Yell · 15 years' experience
Gas Safe registered
ACS qualified
15 years
Plumbing & heating
£2m insured
Public liability
Workmanship guaranteed
On every job
98% recommend
60 Facebook reviews
Boiler Repair in Romford
Professional boiler repair and fault diagnosis
A boiler repair starts with precise fault finding: understanding why the boiler has stopped, why it keeps locking out, why it is losing pressure or why it is failing to heat your hot water. Once the specific cause is clear, the faulty part is repaired or replaced and the boiler is tested for safety and performance. We focus on finding the root cause rather than replacing parts at random.
It's for any homeowner or landlord whose boiler is showing a fault code, will not fire, is making unusual noises, is leaking, losing pressure, or heating the radiators but not the water (or vice versa). Getting a professional diagnosis means you don't have to worry about guesses, but rather informed repairs that aim to get your heating system back to its reliable, intended operation as quickly as possible.
Good fault finding can save money. Mitchell investigates the fault and explains whether a repair is practical before recommending replacement. A £90 +VAT diagnosis fee covers the investigation, so you know exactly what is wrong and what is required to fix it before you decide on a repair. We provide clear, honest advice so you know whether a repair is sensible for the age and condition of your boiler.
Every repair is carried out by a Gas Safe registered engineer, ensuring safety and compliance. We don't just clear fault codes; we ensure the underlying problem is addressed so the boiler works safely and efficiently. If a repair is not the most cost-effective or safe long-term solution, we will tell you, but we aim to repair your current unit if it is safe and practical to do so.
Don't leave it
Why boiler faults should not be ignored
Many boiler problems start small but worsen over time. Ignoring them until the boiler stops entirely is often false economy, as a small, fixable issue can lead to more expensive damage or a total system breakdown when you need heat the most.
Component degradation
A boiler that is leaking or running with an internal fault puts extra strain on other parts. Left too long, a simple replacement part might not be enough, as the damage can spread to more expensive components within the appliance.
Water damage risks
Even a small, slow internal leak can cause significant corrosion to internal electrical components, wiring, and even your property's flooring or ceiling. Investigating a leak early can help limit further damage and clarify the repairs needed.
Increased fuel consumption
An appliance working with an underlying fault often uses more gas than it should to achieve the same heating effect. This means you are effectively paying more for your energy every month, a cost that adds up long before the boiler actually breaks down.
Safety implications
Boilers are complex gas appliances. Faults related to combustion, gas pressure, or ventilation are serious and must be investigated by a Gas Safe registered engineer. Never ignore a boiler that behaves strangely or exhibits safety concerns, as your family's safety is the primary concern.
Common mistakes we see
- Repeatedly pressing the reset button without having a professional find out why the boiler is locking out in the first place.
- Permitting an unqualified, unregistered person to open up or work on a gas appliance, which is illegal and dangerous.
- Assuming a boiler must be replaced just because it is old, rather than having a skilled engineer perform a proper diagnosis first.
Our process
How the job gets done
- 01
System inspection
Mitch visits to inspect the boiler, controls, pressure gauges and fault history, ensuring he understands the pattern of the problem you have been experiencing before starting any diagnostic work.
- 02
Fault diagnosis
The underlying fault is traced and explained to you in plain terms, along with the options for repair or replacement and an estimate of the costs involved, so you can make a fully informed decision.
- 03
Professional repair
With your approval, the faulty part is replaced or repaired. All repairs are carried out to current safety standards, followed by checks of boiler operation.
- 04
Operational testing
Once fixed, the boiler is run and thoroughly tested on both heating and hot water cycles, checking gas pressures, flue combustion and safety devices to ensure everything is operating correctly and safely.
- 05
Completion
You are told exactly what was done and why, and the area is left clean and tidy. The guarantee covers workmanship only, not parts.
What you get
What you get with boiler repairs & fault finding
Careful diagnosis
Careful fault-finding can help avoid unnecessary repairs, avoiding the 'trial and error' approach.
Local call-outs
Emergency call-outs are offered for no heat, no hot water and leaks. Call Mitchell to check availability.
Avoid unnecessary replacement
Careful, honest diagnosis means you only consider replacing a boiler when it genuinely makes sense, rather than replacing equipment unnecessarily.
Gas Safe registered
All repairs are carried out by a Gas Safe registered, ACS qualified engineer, ensuring safety, compliance and high-standard work.
Fixed diagnosis cost
We charge a clear £90 +VAT for fault diagnosis, so there are no surprises regarding the cost of finding the problem.
In detail
Common boiler faults that we repair
Boilers can develop a range of issues over time, but most problems fall into a few familiar categories that we can diagnose and fix. Whether your boiler is a combi, system or regular unit, understanding these common faults can help you describe the problem when you book your visit.
Loss of system pressure
Pressure that keeps dropping usually indicates a leak somewhere in your heating system, a failing pressure relief valve, or an expansion vessel that has lost its air charge. Instead of just topping up the pressure, we find the leak and fix the cause, then check the system pressure after the repair.
Ignition and lockout faults
A boiler that will not light or keeps locking out often points to gas supply issues, ignition or flame-sensing faults, blocked condensate pipes or fan problems. We methodically test the sequence of operation rather than just guessing, identifying the specific faulty part so we can fix it efficiently and reliably.
Heating or hot water issues
When one works and the other does not, the cause is often a diverter valve, a zone valve, the system controls or the thermostat. On cylinder systems, the cylinder and its controls are also checked. We identify the component that has failed to ensure you have heat and hot water as intended.
Noisy boiler operations
Banging, whistling or 'kettling' noises usually mean restricted flow, air in the system or scale build-up, sometimes linked to sludge in the radiators or pipework. In some cases, this indicates that a power flush is required to restore efficiency and remove the debris that is causing the noise and the strain.
Control and sensor faults
Modern boilers rely on electronic controls, sensors and PCBs to monitor temperature and safety. If a sensor fails or a board malfunctions, the boiler may stop working entirely or run in an inefficient, unsafe way. We check these electronic components as part of our diagnostic process to ensure the boiler responds correctly.
What customers say
"Old boiler died, new one quoted and fitted in a week. Left the house spotless after. Absolute top job by Mitch and team."
"I had already spoken to four heating engineers regarding a problem with our boiler but was not convinced any of them knew how to solve the problem. Mitchell was by far the most attentive and knowledgeable. He came up with a viable solution that ultimately avoided replacing the boiler."
"After discovering water leaking from our boiler, Mitchell came out the next day and was able to replace the corroded part. Great customer service."
FAQs
Boiler Repairs & Fault Finding: your questions answered
Related services
Areas covered
Romford · Hornchurch · Ilford · Rainham · Chigwell · Loughton · Upminster · Chingford · all areas
How much does a boiler repair cost?+
Fault diagnosis is £90 +VAT. Once the fault is found, you are told the cost of the repair, including any necessary parts, before any further work goes ahead so you remain in control.
Can you come out today?+
We do not promise a fixed response time, but reviews mention same-day and next-day visits. Call 07787 095498 and Mitch will tell you honestly when he can get to you.
Is it worth repairing an old boiler?+
Often, yes. If the repair is sensible for the boiler's age and condition, Mitch will recommend it. If replacement makes more long-term sense, he will explain why and offer a transparent, fixed quote for a new installation.
My boiler is losing pressure, is that urgent?+
It usually indicates water is escaping somewhere, so it should be looked at before it causes larger internal damage or leads to a complete breakdown when you need your heating the most.
Do you repair all boiler types?+
We repair most domestic combi, system and regular boilers, along with the associated heating controls, zone valves, pumps and hot water cylinders to ensure the whole system is working.
Is the diagnosis fee part of the repair cost?+
The £90 +VAT fee covers the initial fault finding. If you decide to go ahead with the recommended repair, we will confirm the total cost for the parts and the labour required to complete the work.
What should I do if my boiler is leaking water?+
Switch off the water supply to the boiler if you can locate the isolation valve and try to collect the leaking water to prevent damage. Call us immediately so we can assess the leak and stop it before it causes more extensive internal damage.
Can you fix the heating system as well as the boiler?+
Yes, we look at the entire system. Often what seems like a boiler problem is actually an issue with a valve, a thermostat or the radiators. We diagnose the whole system to ensure the fix is successful.
Is the work guaranteed?+
Yes, our workmanship is guaranteed. Parts aren't covered by our guarantee. New boilers carry the manufacturer's warranty, which ranges from 2 to 10 years depending on the boiler.
When can I reach you?+
Working hours are 8am to 5pm. Mitch answers his phone up to 10pm, even if only to tell you he's unavailable, and anything after 10pm is returned the next day.
Are you qualified and insured?+
Mitchell is Gas Safe registered, ACS qualified, G3 unvented hot water qualified and holds NVQ Level 2. The business carries public liability insurance up to £2 million.
Do you cover my area for boiler repairs?+
We're based in Romford and cover Romford, Hornchurch, Upminster, Rainham, Gidea Park, Collier Row, Harold Hill, Ilford, Chigwell, Loughton, Chingford and the other covered places listed on our service areas page.
Boiler playing up? Find out what's really wrong.
Call for a £90 +VAT diagnosis and a straight answer on repair or replacement.
Phones answered until 10pm. Later calls are returned the next day.