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Boiler Repair & Breakdown, Birmingham

Our boiler repair callout is £99, which covers a full fault diagnosis and the first hour of labour. Once we know what is wrong you get the total repair price before we carry on — no open-ended hourly billing.

Quick answer

Our boiler repair callout is £99, which covers a full fault diagnosis and the first hour of labour. Once we know what is wrong you get the total repair price before we carry on — no open-ended hourly billing. We cover Birmingham and the surrounding 10 miles and hold same-day slots for no-heat and no-hot-water calls.

Boiler Repair & Breakdown, Birmingham — Synergy Gas & Plumbing, Birmingham
Boiler repair across Birmingham and the Black Country. Gas Safe registered 594385.

Rather we rang you?

Leave your details and we will call you back — usually within the hour during office hours.

Try these two things before you call

Roughly one call in six is something you can fix in two minutes, and we would rather tell you that than charge you £99 for it.

  • Check the pressure gauge. If the needle is below 1 bar the boiler will lock out. Topping up via the filling loop usually brings it straight back.
  • Check the condensate pipe. In a cold snap the white plastic pipe running outside can freeze and shut the boiler down. A jug of warm — not boiling — water poured along it often clears it.

If neither works, or you can smell gas, stop and call us.

Faults we see most across the West Midlands

  • Pressure dropping every few days — a leak on the system, a failed expansion vessel, or a weeping pressure relief valve.
  • Heating works, hot water does not — usually the diverter valve or its actuator.
  • Boiler fires then cuts out — blocked heat exchanger, failed pump, or a sludged system starving flow.
  • Ignition lockout — spark electrode, gas valve or a PCB fault.
  • Radiators cold at the bottom — magnetite build-up, which is a system problem rather than a boiler one.
  • Banging or kettling — scale on the heat exchanger, common in Birmingham's harder water pockets.

Getting the diagnosis right first time

Over twenty years the pattern is consistent: most repeat visits come from someone swapping a part on a guess. We test rather than guess — flue gas analysis, flow and return temperatures, gas rate at the meter, electrical checks across the PCB. It takes longer on the first visit and saves you a second one.

Where the fault points to two likely parts, we will tell you both, tell you which we carry on the van, and tell you honestly what a fair repair bill looks like against the cost of replacing the boiler. If your boiler is over twelve years old and the repair is over £600, we will say so.

Parts and warranty

We carry common spares for Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and Potterton. Parts we fit are covered by a 12-month parts-only warranty.

88%Fixed on the first visit

We carry the parts, so we can usually fix it there and then

Our van carries a large range of common boiler spare parts, so once we have diagnosed the fault we can normally repair it on the same visit instead of ordering a part and coming back another day. We measured it: across 505 boiler repairs completed since October 2023, 88% were finished on that first visit. How we counted.

When to stop repairing

A boiler past twelve years old, on its second or third major part, with a heat exchanger showing corrosion, is money going the wrong way. We will give you the repair price and the replacement price side by side and let you decide. We do not use scare tactics, and an engineer who condemns your boiler without showing you the reading is one to be wary of.

Got a Worcester? We see more Worcester Bosch boilers than any other make. Our Worcester boiler repair page covers the EA fault, ignition lockouts, leaking manifolds and condensate collectors, with five real repairs photographed.

Recent repairs

A Baxi in Erdington showing E133 was diagnosed and repaired within the hour — a failed electrode, carried on the van, fitted and tested on the spot.

An Ideal Logic that kept losing pressure with no visible leak: the leak was internal, on the main heat exchanger. Correct replacement ordered, fitted, and the boiler left holding pressure.

An Ideal Logic L2 lockout that combustion testing showed was hiding dangerous CO readings — we made the appliance safe, replaced the gas valve and injector, and fully recommissioned it. A reminder of why every repair here ends with an analyser, not a guess.

A Worcester Greenstar Ri in Walsall stuck in ignition lockout, where previous engineers had told the customer to replace the boiler. The cause was a perished burner gasket and a damaged electrode, both van stock, both fitted and tested on the first visit. See the photos and the full write-up.

A Worcester CDi in Stourbridge with no hot water and an EA fault, for a returning customer. After completing our safety checks we traced it to the gas valve; we ordered the correct one, fitted it and completed all the safety checks before signing off. Read the case study.

An online booking in Quinton for a Worcester Greenstar Compact CDi whose control panel was held up with duct tape and a bit of copper pipe. A snapped hinge clip, a common fault on that model and one we carry on the van. Both clips replaced on the spot, and a customer reassured they did not need a new boiler. See the before and after.

A Walsall rental locking out on overheat: the system pump had burnt out, and the sludge packed into it was the reason. New pump from van stock, heating back the same visit, and a flush recommended to the landlord. Read the case study.

A Worcester Greenstar 28i Junior in Solihull leaking from its right-hand manifold. Not a van-stock part, so we sourced it locally the same day, collected it and fitted it, with no return visit. Read the case study.

A Worcester CDi in a Stourbridge rental, with a leak flagged on the gas safety check by another engineer. We traced it to the condensate collector inside the combustion box, stripped the box out, replaced the collector and seals and rebuilt it, then proved the burn on the analyser. Read the case study.

Prices

Fixed prices, updated September 2026
JobPrice
Boiler fault diagnosis + first hour of repair£99
Water leak detection or repair (first hour)£99
PartsQuoted before we fit
Parts-only warranty on repairs12 months

Prices are estimates and may change after a site inspection. We cover Birmingham and 10 miles from B20 2JS as standard, extending to 50 miles for boiler installations. A travel charge may apply beyond 10 miles.

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Four taps and we will come back with a fixed figure.

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07413 385767 Answered 24 hours. If you can smell gas, first call the National Gas Emergency Service on 0800 111 999, then ring us to trace and repair.
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Boiler repair

£99 diagnosis + first hour
CalloutSame day where possible
OfficeMon–Fri 8–5.30
Emergency24/7
Gas Safe reg.594385

Coverage

From B20 2JS
Standard radius10 miles
Installationsup to 50 miles
TownsB'ham, Sandwell, Walsall, Dudley, Solihull
Answers

Boiler repair: common questions

How much does a boiler repair cost in Birmingham?

£99 covers the callout, full diagnosis and the first hour of work. Once diagnosed, we give you the total price for the repair before continuing, so you are never billed open-endedly.

Can you come out today?

We hold same-day slots for no heating and no hot water, and we run a 24/7 line for genuine emergencies such as gas leaks and uncontrollable water leaks. Call early in the day for the best chance of a same-day slot.

My boiler pressure keeps dropping. What is wrong?

Repeated pressure loss means water is leaving the system somewhere: a small leak on pipework or a radiator valve, a failed expansion vessel, or a discharging pressure relief valve. Topping it up daily is a symptom, not a fix, and it accelerates corrosion inside the boiler.

Do you repair all boiler makes?

We work on all domestic gas boilers and carry stock for Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and Potterton. We also cover LPG appliances, which many engineers are not qualified for.

Is it worth repairing an old boiler?

As a rule of thumb, if the boiler is over twelve years old and the repair is more than a third of the cost of replacing it, replacement is usually the better spend. We will give you both numbers rather than push you one way.

What should I do if I smell gas?

Turn the gas off at the meter, open windows, do not touch electrical switches, leave the property and call the National Gas Emergency Service on 0800 111 999. Then call us to trace and repair once the supply is made safe.

Also

Other services

Boiler playing up? We can usually get to you the same day.

Call the Birmingham office for a straight answer and a fixed price before we start work.

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