Independent Gas Safe registered engineers. Glow-worm Energy, Ultracom, Flexicom and Betacom faults tested, not guessed: F22, F28, F29 and F75, and no hot water.
We repair Glow-worm boilers across Birmingham and the surrounding towns: the Energy, Easicom, Ultracom, Flexicom and Betacom ranges, and older heat-only models. Glow-worm is part of the Vaillant Group, and its newer boilers use the same style of F codes. 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. We carry common Glow-worm spares on the van. We are independent of Glow-worm and Gas Safe registered (594385), and every repair finishes with a flue gas analyser reading.
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
Smell gas now? Do not use this form or wait for a reply. Call the National Gas Emergency Service free on 0800 111 999 (24 hours). If you are using a mobile, make the call from outside. Open doors and windows, do not switch electrics on or off, do not smoke or use naked flames, and turn the gas off at the meter if it is safe to do so, unless the meter is in a cellar or basement. Once the supply has been made safe, we can trace and repair the fault.
Glow-worm fault codes vary more between its own ranges than on most makes, so treat any table as a starting point and check the label inside the flap of your boiler. These are the faults we are asked about most.
| Code | What it means | Usual causes |
|---|---|---|
| F22 | System water pressure too low | Leak on the system, expansion vessel, pressure relief valve |
| F28 | Ignition fault | Frozen condensate pipe, gas supply, electrode, gas valve |
| F29 | Flame lost during operation | Gas supply, flue, electrode, condensate |
| F75 | No pressure rise seen when the pump starts | Pressure sensor, pump, low pressure, sludge |
| F27 | Flame signal detected when there should be none | Gas valve or electronics. Do not reset |
| F61 / F62 | Gas valve control fault | Gas valve, its wiring or the control board. Do not reset |
Press reset once. If the code comes back, stop resetting and ring us with the code and the model. With F27, F61 or F62 do not reset at all: switch the boiler off and call, and if you can smell gas ring the National Gas Emergency Service on 0800 111 999 first. Our guide lists the full set of Glow-worm fault codes and says which ranges each one applies to, checked against Glow-worm's own manuals.
The Energy and Energy7, Easicom, Ultracom, Flexicom and Betacom, and older heat-only Glow-worm boilers. Because the codes differ between ranges, the model name matters more on a Glow-worm than on most makes. When you call, have the model and the code or light on the display, or send a photo by WhatsApp.
A boiler that has been switched off or capped as unsafe is not automatically finished. Whether it is worth repairing depends on the actual fault, whether the part is still available, what the repair costs against a replacement, and how long you plan to stay. The Chelmsley Wood Glow-worm was capped off for carbon monoxide and was back in service with a new flue collector and gaskets.
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. New boilers start at £1,999 fitted, confirmed in writing after a free survey.
A basic service is £95 and includes a combustion check on the analyser; an intermediate service is £125 and a full strip-down is £185 with gaskets and an inhibitor top-up included. The Chelmsley Wood fault was found because the boiler was opened and tested, not just looked at. For landlords, a gas safety certificate (CP12) is £90 for a boiler and cooker, and a service can be added on the same visit.
One so far, written up with the photos our engineers took. More are added as we do them.
Rust at the back of the heat exchanger and a carbon monoxide reading on the analyser, in a house with a young family. We capped the boiler off, told the tenant and landlord, and replaced the cracked flue collector and gaskets with the landlord's permission.
Read the case studyWe also repair Worcester Bosch, Vaillant, Baxi and Ideal boilers. Every other make is covered on our main boiler repair page.
| Job | Price |
|---|---|
| Glow-worm fault diagnosis + first hour of repair (Mon–Fri 8am–5.30pm) | £99 |
| Outside office hours | Quoted by phone before we set off |
| Parts | Quoted before we fit |
| Parts-only warranty on repairs | 12 months |
| Basic boiler service (combustion check included) | £95 |
| Intermediate boiler service | £125 |
| Full strip-down service (gaskets and an inhibitor top-up included) | £185 |
| New combi boiler, fitted | from £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, installation prices are 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.
£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.
In office hours (Monday to Friday, 8am to 5.30pm), £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. Out of hours, we quote by phone before we set off.
F75 means the boiler did not see the pressure rise it expects when the pump starts. The cause is the pressure sensor, the pump or low water pressure, often with sludge behind it. Check the gauge reads between 1 and 1.5 bar and reset once. If the code returns, ring us with the code and the model.
F28 is an ignition fault: the boiler tried to light and could not. In freezing weather it is very often a frozen condensate pipe. Thaw the white plastic pipe outside with warm, not boiling, water and reset once. If it comes back, the cause is likely to be the gas supply, the electrode or the gas valve, and that is work for a Gas Safe registered engineer.
Betacom models do not display fault codes, only a coloured light. The meaning depends on the colour and whether it is steady or flashing, and it is listed on the label inside the boiler's flap. Tell us what you can see when you call, or send a photo.
No, and we would rather tell you than let you assume. We are independent Gas Safe registered engineers (594385) who repair Glow-worm boilers and carry their common spares. 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.
Often, yes. It depends on the fault, whether the part is still available and what the repair costs against a replacement. A Glow-worm we capped off for carbon monoxide in Chelmsley Wood was back in service with a new flue collector and gaskets. We give you the repair price and the replacement price and let you decide.
We cover Birmingham and the surrounding towns. Pick your area for local detail.
From £1,999 fitted
From £95
£90 (boiler + cooker)
£99 (Mon–Fri 8am–5.30pm)
From £99 in office hours
From £550, up to 10 radiators
£99 in office hours covers diagnosis and the first hour. You get the total price before we fit anything.
