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Worcester Boiler Repair, Birmingham

Independent Gas Safe engineers who fix Worcester Greenstar boilers every week: EA faults, ignition lockouts, leaks and pressure loss, with the common parts on the van.

Quick answer

We repair Worcester Bosch boilers across Birmingham and the Black Country, from the Greenstar i and Si ranges to the CDi and the older Ri and Junior. In office hours (Mon–Fri 8am–5.30pm) the callout is £99, which covers a full diagnosis and the first hour of labour, and you get the total price before we fit anything. Common Worcester service parts such as electrodes, burner gaskets and hinge clips are on the van; gas valves and manifolds we source the same day where a local supplier has them. We are independent, not tied to Worcester, and we will tell you straight when a repair is the right call and when it is not.

The perished burner gasket and new gasket and electrode from a Worcester Greenstar Ri repair in Walsall
Walsall — a Greenstar Ri written off by previous engineers, fixed with a gasket and an electrode from the van.

Request an engineer

Four details and we will get back to you to arrange a time. Prefer to talk? Call 07413 385767.

£99 in office hours (Mon–Fri, 8am–5.30pm) covers attendance, diagnosis and the first hour. Parts and any further work are quoted and agreed before we carry on. Out of hours, the price is quoted by phone before we set off.

No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked. Full price list

The first part, such as B20, is enough.
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Worcester faults we see most

Worcester Bosch is the most common boiler in Birmingham homes, so most weeks we have one open. The faults repeat, and so do the fixes. These are the ones we see most, each linked to a real job with photos.

  • EA fault, no hot water. EA means the boiler could not prove a flame. It can be the electrode, the gas supply, the fan, the board or the gas valve, so it needs testing rather than guessing. On a CDi in Stourbridge our safety checks traced it to the gas valve.
  • Ignition lockout. Firing, failing, locking out. On a Greenstar Ri in Walsall the cause was a perished burner gasket and a damaged electrode, both on the van, after previous engineers had said the boiler was finished.
  • Losing pressure or leaking inside the case. On the Junior and i ranges the plastic hydraulic manifolds corrode and weep. On a 28i Junior in Solihull we sourced the manifold locally and fitted it the same day.
  • Water in the bottom of the boiler. On the CDi the condensate collector seals perish and it weeps inside the combustion box. Reaching it means stripping the box out, as on a landlord follow-up in Stourbridge.
  • Control panel hanging down. The plastic hinge clips on the Greenstar Compact snap with age. Two clips from the van, as on a Greenstar 30Si Compact in Quinton that the customer had taped shut.

Worcester fault codes, briefly

The codes we are asked about most
CodeWhat it meansUsual causes
EAFlame not detectedElectrode, gas supply or valve, fan, control board
E9OverheatPump, circulation, blockage, safety thermostat
C6Fan speed wrongFan, fan wiring, air pressure switch
A1Pump running dryLow pressure, air in the system, pump

Press reset once. If the code comes back, stop resetting and ring us with the code and the model, which is on the label behind the drop-down flap. The code tells us where to start looking, not which part has failed: EA can be a £15 electrode or a gas valve, and only the diagnosis on site settles it, which is what the £99 covers. Our guide to boiler fault codes covers Worcester alongside ten other makes.

Told your Worcester needs replacing?

Two of the five Worcester jobs on this page were boilers other engineers had written off. One turned out to be a gasket and an electrode. One was two plastic clips. Worcester boilers are well supported, spare parts are easy to get, and a Greenstar that is properly maintained runs for a long time.

There is a point at which a boiler is not worth repairing: past twelve years old, on its second or third major part, with a corroding heat exchanger. If yours is there, we will say so and put the repair price and the replacement price side by side. If it is not, a £99 diagnosis is a small price against a new boiler.

Parts we carry for Worcester

The van carries the Worcester parts that fail most often: electrodes, burner gaskets and seals, hinge clips, sensors and common valves. That is why most of our Worcester repairs are finished on the first visit. Gas valves, manifolds and condensate collectors are specific to the model, so we do not carry every one, but where a trade supplier within reach has the part in stock we collect it the same day rather than leave you waiting on an order.

We are independent engineers, not a Worcester-accredited installer, and we say so. What you get is a Gas Safe registered engineer who works on these boilers every week, tests before replacing anything, and finishes every repair with a flue gas analyser reading.

Keeping a Worcester running

Worcester's guarantee depends on an annual service, documented, and so does the boiler's life. A basic service is £95 and includes a combustion check on the analyser. Every five to eight years a full strip-down, £185 with gaskets and inhibitor included, cleans the heat exchanger and burner and replaces the seals that cause most of the faults above before they start.

Recent Worcester repairs

Seven Worcester jobs written up with the photos our engineers took. More are added as we do them.

We also repair Vaillant, Baxi, Ideal, Glow-worm, Viessmann, Potterton and Ferroli boilers. Every other make is covered on our main boiler repair page.

Prices

Prices, updated September 2026
JobPrice
Worcester fault diagnosis + first hour of repair (Mon–Fri 8am–5.30pm)£99
Outside office hoursQuoted by phone before we set off
PartsQuoted before we fit
Parts-only warranty on repairs12 months
Basic boiler service (combustion check included)£95
Full strip-down service (gaskets and inhibitor included)£185
Like-for-like Worcester combi swap, fittedfrom £1,999

The £99 is a fixed charge for attendance, diagnosis and the first hour in office hours (Mon–Fri 8am–5.30pm); it is not the price of every repair, and parts and further work are quoted and agreed before we carry on. Service prices are the price for the job as described, the "from" installation price is confirmed in writing after a free survey, and out-of-hours work is quoted by phone before we set off. No travel charge within 10 miles of B20 2JS; further out, £2 per mile may apply, agreed before booking. How our prices work.

What it costs

Updated Sept 2026

£99 diagnosis + first hour

£99 in office hours (Mon–Fri, 8am–5.30pm) covers attendance, diagnosis and the first hour. Parts and any further work are quoted and agreed before we carry on. Out of hours, the price is quoted by phone before we set off.

No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked.

Full price list

Worcester repair

£99 diagnosis + first hour
CalloutEarliest available visit — ask when you call
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

Worcester boiler repair: common questions

How much does a Worcester boiler repair cost?

In office hours, £99 covers the callout, a full diagnosis and the first hour of labour. Once we know the fault you get the total price, including any part, before we carry on. Common parts like electrodes and gaskets are inexpensive and on the van; a gas valve or manifold is quoted before we order it.

What does EA mean on a Worcester boiler?

EA is Worcester's code for a flame that could not be established or proved. It is one of the most common codes and it has several possible causes, from the electrode to the gas valve, so it needs testing rather than a guess. Press reset once; if it returns, ring us with the code and the model.

Are you Worcester approved?

No, and we would rather tell you than let you assume. We are independent Gas Safe registered engineers who repair Worcester boilers every week and carry their common parts. We belong to the Vaillant and Baxi installer schemes, which are loyalty schemes and not approvals either. For a repair, what matters is a proper diagnosis and the right part, and that is what you get.

Can you fix a Worcester on the first visit?

Usually. Most Worcester faults come down to parts we carry, so the repair is done on the first visit. Where a model-specific part is needed we source it locally the same day if a supplier has it, as we did with a manifold in Solihull, and order it only when there is no other way.

Should I replace an old Worcester or repair it?

Repair it unless it is past about twelve years old, on its second or third major part, or its heat exchanger is corroding. We check first and show you what we find. If it is time, a like-for-like Worcester swap starts at £1,999 fitted; if it is not, most repairs are far less than that.

Also

Other services

Worcester showing a fault code? Ring us with the code.

£99 in office hours covers diagnosis and the first hour. Common Worcester parts are on the van.