
Boiler installation in Birmingham
A straight combi-for-combi swap in Birmingham starts at £1,999 fitted, and converting an older open-vent system to a combi starts at £2,699.
DetailsGas Safe registered boiler and plumbing engineers covering Birmingham and the B1–B48 postcodes.
We are a Birmingham firm — based in Handsworth Wood, B20 — covering every Birmingham postcode from B1 in the city centre out to the city boundary. Boiler repair callout £99 in office hours (diagnosis and the first hour), new boilers from £1,999 fitted, CP12 landlord certificates £90, and a 24/7 emergency line. We also do plumbing repairs across the city: water leaks, burst pipes, leaking toilets and cisterns, showers and taps.
Birmingham's housing stock is unusually varied for one city, and it shows in the work. Back-to-back and bylaw terraces in the inner ring, vast interwar semi-detached estates in the outer suburbs, 1960s tower blocks and modern city-centre apartments. Each brings its own heating problems, and after twenty years we know which is which before we arrive.
Four details and we will get back to you to arrange a time. Prefer to talk? Call 07413 385767.
Tell us what you need and we will price it before anything is booked.
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.
In the inner-city terraces — Sparkhill, Small Heath, Handsworth, Aston — we deal mostly with ageing combis on undersized gas supply pipes, solid-wall heat loss that makes radiator sizing critical, and a very high proportion of rented property needing annual CP12 certificates. In the interwar semis of Kingstanding, Great Barr and Yardley the recurring job is converting a tired open-vent system with a loft tank across to a combi. In the city-centre apartments around B1 and B5, access, flue routes and building management permissions are the constraints rather than the plumbing itself.
We are ten minutes from the A34 and the Aston Expressway, which puts most of the city inside a straightforward run. Our standard coverage is Birmingham and a 10-mile radius of B20 2JS; for boiler installations we travel up to 50 miles.
Jewellery Quarter, October 2026: a Saturday emergency on a Potterton Gold electric boiler. The overheat light was flashing and the pressure was low. We topped it up, tightened a loose automatic air vent that started leaking, and tested the heating. Read the case study, with photos. More on electric boiler repairs.
Newtown, October 2026: a Meibes HIU with no hot water and leaks. Five engineers had been out before us. We found the PM valve on the hot water side patched with sealant and a hose clip, replaced it, and had the customer back up and running. Read the case study, with photos.
City centre, October 2026: no hot water from a Megaflo. A tenant asked us to replace both immersion elements on their unvented cylinder. We drained it down, took out two scaled and corroded elements, fitted new ones and tested them, and the hot water was back the same visit. Read the case study, with photos. More on immersion heater repairs.
Kitts Green, October 2026: a routine service that found a flue problem. The Vaillant ecoTEC pro 28 itself was in good order after its annual service, but the flue in the loft had no proper brackets, only metal banding, and its joint clamps were unscrewed. Warning notice left, quote accepted, return visit booked to put it right. Read the case study, with photos.
Jewellery Quarter, September 2026: a Caleffi HIU service. A Complete service on a loft apartment's heat interface unit found dark system water and no inhibitor. Customer shown, agreed, system dosed before we left. Read the case study, with photos.
Hockley, June 2026: an expansion vessel hanging off the wall. The backboard for an unvented cylinder's expansion vessel had been nailed into plasterboard with no stud behind it. We fitted plywood across a wider area on heavy-duty fixings and remounted the vessel properly. Read the case study, with photos. More on hot water cylinder repairs.
City centre, May 2026: a heat interface unit with no hot water. Heating was fine, hot water was not. The flow switch inside the HIU had failed; we ordered the like-for-like part, returned to fit it and tested the unit. Read the case study.
A Vaillant in Yardley with poor hot water and radiators warming when they shouldn't — a failed diverter valve. Replaced, tested, sorted in one visit.
An emergency in Kitts Green with water coming through the ceiling: we traced the leak under the floorboards to a failed soldered joint, lifted the boards carefully, and repaired the pipework on the first visit with fittings from the van.
A Vaillant F28 in Balsall Heath — circuit board fault. Replacement PCB fitted, boiler tested, heating and hot water back on.
A landlord job in Bordesley Green that started as a blank display — a failed PCB, repaired — and finished with a gas hob swap and the annual CP12, all on the same file.
A Sparkhill terrace called us out mid-January with the boiler locking out on every reset — the condensate pipe had frozen where it ran along an external wall. We thawed it, insulated the run properly, and it hasn't tripped since.
In a B5 city-centre apartment, the management company needed sign-off on the flue position before any work could start. We handled the paperwork alongside the repair so the tenant wasn't left waiting on two different people.
Across all our repair work, 447 of the 505 boiler, heating and hot-water repairs we counted between October 2023 and August 2026 (88%) were finished on the first visit. How we measured the first-visit fix rate.
Birmingham gives us three very different kinds of job. In the city centre and the Jewellery Quarter most flats have no boiler at all: heating and hot water come through a heat interface unit fed by a communal plant room, and the faults are flow switches, plate heat exchangers and stuck valves rather than anything gas. That is why we run a dedicated HIU service and repair page, and why a city centre flat with no hot water is one of our written-up jobs.
The Victorian and Edwardian terraces of the inner ring, from Small Heath round to Handsworth and Hockley, tend to have a combi in the kitchen on pipework that has been altered many times. An expansion vessel that fell off the wall in Hockley is a good example of the fixings and workmanship we find behind the boiler. Further out, the interwar semis of Yardley, Hall Green and Northfield are mostly 1990s and 2000s combis coming to the end of their life, which is where most of our boiler replacement work comes from.
We handle the plumbing side too. That covers water leaks and burst pipes — water through a ceiling, a pipe that has let go under a floor — leaking toilets and cisterns that will not stop running, toilets that will not flush or fill, failed electric or mixer showers, and taps. Our 24/7 emergency plumber line is answered day and night: in office hours (Mon–Fri 8am–5.30pm) the callout is £99 for attendance, diagnosis and the first hour, and out of hours we quote by phone before we set off. Water leak detection or repair is £99 for the first hour in office hours, a toilet that will not flush or fill is £165–£200, and a new mixer or electric shower is £300–£400 supplied and fitted; the full list is on the plumbing repairs page. We repair leaking or faulty toilets, but do not offer toilet unblocking.
Our prices do not change by postcode within 10 miles of our base at B20 2JS, which is our standard service area. Further out, a travel charge may apply and is agreed before we book you in; see our prices page.
| Job | Price |
|---|---|
| Boiler repair — diagnosis and first hour (Mon–Fri 8am–5.30pm) | £99 |
| Basic boiler service | £95 |
| Landlord gas safety certificate (CP12) | £90 |
| Combi boiler swap, fitted | from £1,999 |
| Conversion to combi, fitted | from £2,699 |
| Power flush, up to 10 radiators | from £550 |
| Emergency callout, first hour (Mon–Fri 8am–5.30pm) | £99 |
| Water leak detection or repair — first hour (Mon–Fri 8am–5.30pm) | £99 |
| Outside office hours | Quoted by phone before we set off |
Handsworth, Aston, Erdington, Kings Heath, Moseley, Harborne, Edgbaston, Selly Oak, Yardley, Acocks Green, Sparkhill, Bournville, Northfield, Sutton Coldfield.
Main prices
Boiler repair: £99 in office hours for attendance, diagnosis and the first hour. Parts and further work agreed first; out of hours quoted by phone.
Boiler service: from £95. Landlord CP12: £90. New combi boiler: from £1,999 fitted.
No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked.

A straight combi-for-combi swap in Birmingham starts at £1,999 fitted, and converting an older open-vent system to a combi starts at £2,699.
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In office hours (Mon–Fri 8am–5.30pm) our boiler repair callout is £99, which covers a full fault diagnosis and the first hour of labour.
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An annual boiler service with us costs £95 for a basic service, £125 for an intermediate service, and £185 for a full strip-down.
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A landlord gas safety certificate (CP12) covering a boiler and a cooker costs £90 in Birmingham.
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Our emergency line is answered 24 hours a day, seven days a week.
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If you can smell gas, call the National Gas Emergency Service on 0800 111 999 first — it is free and 24-hour, and they will make the supply safe.
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Water leaks, burst pipes, leaking toilets and cisterns, showers and taps at published prices. We repair leaking or faulty toilets, but do not offer toilet unblocking.
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Heat interface units in city-centre and Jewellery Quarter apartments: Essential, Complete and Premium services, and emergency repair at £225 for up to three hours' labour.
DetailsYes. We cover Birmingham and the B1–B48 postcodes for boiler repair, installation, servicing, landlord gas safety certificates, plumbing repairs and emergency callouts, from our base at 1 Coopers Road, Birmingham B20 2JS.
In office hours the callout is £99, which covers attendance, full diagnosis and the first hour of work. You are given the total price for parts and any further work before we continue. Our published prices are the same across our area; beyond 10 miles of B20 2JS a travel charge of £2 per mile may apply, agreed before booking.
£90 for a CP12 covering a boiler and cooker. Each additional appliance is £15, and adding a basic boiler service on the same visit is £50.
No heating and no hot water calls are prioritised, and the emergency line runs 24 hours a day. Call and we will tell you the earliest time we can attend.
A like-for-like combi swap starts at £1,999 fitted and a conversion from an old cylinder system starts at £2,699, including flue, wireless thermostat, magnetic filter, chemicals and warranty registration.
Call and speak to someone who does the work, or book a slot online.