Gas Safe registered engineers, registered with Vaillant's installer scheme. ecoTEC faults tested, not guessed: F22, F28, F29 and F75, pressure loss and no hot water.
We repair Vaillant boilers across Birmingham and the surrounding towns: the ecoTEC plus and ecoTEC pro, and the ecoFIT and older turboTEC ranges. 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 Vaillant spares on the van. We are Gas Safe registered (594385) and registered with Vaillant's installer scheme, 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.
A Vaillant reports its faults as F codes. The code tells us where to start testing, not which part has failed. These are the ones we are asked about most.
| Code | What it means | Usual causes |
|---|---|---|
| F.22 | System water pressure too low | Leak on the system, expansion vessel, pressure relief valve |
| F.28 | Ignition failed | Frozen condensate pipe, gas supply, electrode, gas valve |
| F.29 | Flame lost during operation | Gas supply, flue, electrode, condensate |
| F.75 | No pressure change seen when the pump starts | Pump, pressure sensor, sludge in the system |
| F.27 | Flame signal detected when the burner should be off | Gas valve or electronics. Do not reset |
| F.61 / F.62 | 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 F.27, F.61 or F.62 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. On the newest ecoTEC plus boilers Vaillant writes the codes with three digits, so F.00 appears as F.000. Our guide lists the full set of Vaillant fault codes, checked against Vaillant's own manuals.
The ecoTEC plus and ecoTEC pro in combi and system form, the ecoFIT, and the older turboTEC. The same code can mean something different on an older or newer range, so when you call, have the model name from the front of the boiler and the code on the display. A photo sent by WhatsApp does the same job.
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. A Vaillant ecoTEC plus combi swap is £2,699 with a ten-year warranty, confirmed in writing after a free survey.
If yours is not at that point, a £99 diagnosis is a small price against a new boiler. We do not use scare tactics, and we will show you the reading or the failed part rather than ask you to take our word for it.
Vaillant, like every manufacturer, ties its guarantee to an annual service. 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.
A service is the whole installation, not only the boiler. At a service in Kitts Green in October 2026 the ecoTEC pro 28 itself was in good order, with a clean burn on the analyser. Following the flue up into the loft, we found it held by a strip of metal banding with the joint clamps left unscrewed. We classified it At Risk, left a written warning notice and quoted to put it right. The case study has the photos.
One so far, and it is a service rather than a breakdown. We would rather show you one real job with its photos than describe ten we cannot evidence. More are added as we do them.
A routine annual service: condensate trap and magnetic filter cleaned, clean combustion readings. Following the flue into the loft, we found it held only by metal banding with the joint clamps unscrewed. Warning notice left, quote accepted, return visit booked.
Read the case studyWe also repair Worcester Bosch, Baxi, Ideal and Glow-worm boilers. Every other make is covered on our main boiler repair page.
| Job | Price |
|---|---|
| Vaillant 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 |
| Vaillant ecoTEC plus combi swap, fitted (10-year warranty) | £2,699 |
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.
F.75 means the boiler did not see the water pressure change when its pump started. The usual causes are a sticking pump or a pressure sensor blocked by sludge from the heating system. It needs testing rather than a guess, because a new sensor fitted to a system full of sludge only buys time. Press reset once; if the code returns, ring us with the code and the model.
F.28 means the boiler tried to light and could not. In freezing weather, check the white plastic condensate pipe outside and thaw it with warm, not boiling, water, then reset once. If the code comes back, or the weather is mild, 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.
No manufacturer approves independent repairers, and we would rather say so. We are Gas Safe registered (594385) and registered with Vaillant's installer scheme, myREWARDS (formerly Vaillant Advance), which is a loyalty scheme and not an approval. For repairs we work as independent engineers: we test before replacing anything, and we will tell you when a repair is not worth doing.
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 Vaillant ecoTEC plus combi swap is £2,699 with a ten-year warranty, confirmed in writing after a free survey.
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.
