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Westminster runs from Pimlico conversions to new-build flats near Victoria, and BeFix fits boilers in all of them for £1,500 to £3,750 (+VAT). Every job is carried out by our Gas Safe registered engineers (No. 967796), as part of our wider Boiler Installation in London service. A written, itemised quote follows a free survey before anything is booked, and finance is available if you’d rather spread the cost.
All-in-one and compact, the usual fit for Westminster flats and conversions.
These aren’t fixed-price menu items. The final cost depends on the boiler type, where it’s going, and how much pipework or flue work the job needs. Combi installs sit at the lower end, since there’s no cylinder or tank to fit. System and regular boilers cost more because they involve a hot water cylinder, and for regular boilers a cold water tank too, plus the extra pipework that comes with them. A straight combi-to-combi swap in a Victoria flat is typically the cheapest job.
Converting a Pimlico conversion flat from a regular system to a combi, or routing a flue around a shared building’s rules, pushes costs toward the top of the relevant range. We’ll always confirm the exact figure in a written quote after a free survey, never a vague monthly-payment figure that doesn’t reflect the actual work. If spreading the cost helps, finance is available on request.


Westminster isn’t one type of property. Around Pimlico and Maida Vale, Victorian terraces and their converted flats often still have narrow original pipework and a boiler cupboard sized for a much older unit. Council blocks and post-war flats bring a different set of rules: flue positions are frequently restricted, and any external work usually needs sign-off from the building’s management. Newer developments near Victoria and South Bank swing the other way: modern, but with a utility cupboard barely big enough for a compact wall-hung boiler.
| Property type | Common challenge | How we plan around it |
|---|---|---|
| Victorian terraces & conversions (Pimlico, Maida Vale) | Old, narrow pipework and a small original boiler cupboard | Right-sized combi or system boiler, updating pipework where needed |
| Council blocks & post-war flats | Restricted flue positions, shared building consent needed | We liaise with building management before booking the install |
| New builds (Victoria, South Bank) | Compact utility cupboards, tight service risers | Compact wall-hung units and discreet pipe runs |
Westminster also sits within Thames Water’s hard water supply area, and mineral-rich water is the norm across most of the region. Left untreated, that scale builds up inside a boiler’s heat exchanger, making it work harder and shortening its lifespan.
We fit an inline scale reducer as standard on every Westminster installation and recommend annual servicing to keep the heat exchanger clear and protect your warranty.
An engineer visits to check access, existing pipework and the best position for the new boiler.
A clear price breakdown before any work is booked in — no vague "from" figure.
Most straightforward swaps take around 8 hours and are completed within a single working day; more complex jobs may need longer.
All work carried out under registration number 967796.
Every new boiler is commissioned, tested and registered — a gas safety certificate is available if you need one.
12 months' workmanship cover from BeFix, plus up to 12 years' manufacturer warranty depending on the model.
We supply and fit boilers from Worcester Bosch, Vaillant, Ideal, Keston, Remeha, Baxi, Main and Viessmann. BeFix is an accredited installer for Worcester Bosch, Baxi, Vaillant and Ideal, which unlocks longer manufacturer warranties on those brands when we handle the installation.

Number 967796, verifiable on the official Gas Safe Register at any time.
for the duration of every job.
per engineer, including older, awkward-access properties common in Westminster.
BeFix is Gas Safe registered under number 967796, and every boiler we install in Westminster is fitted by an engineer working under that registration, not a subcontractor working off-book. We also carry public liability insurance, and our engineers each bring more than ten years’ hands-on experience to every job. You can check our registration yourself on the official Gas Safe Register at any time before booking.




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Kate HendersonTrustindex verifies that the original source of the review is Google.
I’d had various concerns about my aircon system at my flat in NW2 not working effectively, and was very relieved when Befix were able to offer a prompt service appointment. Communication in advance of the appointment was good and engineer Vahid arrived punctually and worked carefully and thoroughly, ensuring the whole system was in good working order. He was clearly knowledgeable about all kinds of technical issues, friendly and adaptable, and I had confidence that he was attending to everything properly. I am not perhaps very familiar or up to date with what I should expect to pay for this kind of work. I think the price was probably fair - but I would advise checking in advance to make sure you are happy with the arrangement. I was left feeling relieved my system was now in good working order, and will certainly consider the company again for future work, including more ambitious projects.Posted on Google![]()
Beryl RamsayTrustindex verifies that the original source of the review is Google.
Excellent job, very thorough and pleased with the end result.Posted on Google![]()
Kornwipha SutthiphonphongTrustindex verifies that the original source of the review is Google.
Great job on fixing the boiler. Fast and efficient quick call out for Slone square area 👏Posted on Google![]()
Asim Cengiz AkbulutTrustindex verifies that the original source of the review is Google.
Needed certified gas safety experience in Finchley Central, N3. Came out on emergency call and did a great job. V happy, will call againPosted on Google![]()
oja cTrustindex verifies that the original source of the review is Google.
Vahid was kind, professional, and incredibly good at his job. He came quickly and flexibly to west london/ Kensington area— and worked out the most economic and quickest way to help with a boiler that lost its pressure. Could not recommend this service more!Posted on Google![]()
Sev ZachariaTrustindex verifies that the original source of the review is Google.
Brilliant service very fast Aircon unit installed.Very reasonably pricedPosted on Google![]()
NICHOLAS PEARSONTrustindex verifies that the original source of the review is Google.
Excellent in every respect. If you need a top plumber in South East London then BeFix come highly recommended. A tricky job which had not been solved by previous professional, was immediately diagnosed by BeFix which has saved me money and time. Efficient, punctual, and reasonably priced.Posted on Google![]()
Anthony PisarskiTrustindex verifies that the original source of the review is Google.
Amazing quality of work. Was lucky enough to have a same day appointment. Provided great advice, arrived on time and completed the work exactly as promised. Very reasonably priced (having received a quote for over 2x) Would absolutely recommend every time. Very friendly and professional! Thank you so muchPosted on Google![]()
Samin MoghimiAslTrustindex verifies that the original source of the review is Google.
Vahid was very fast to respond to my quote request and to set a time for his visit. He fixed our boiler in a very efficient and professional manner. He already had the replacement part with him beforehand which was very helpful. I would 100% recommend BeFix!Posted on Google![]()
TaysirTrustindex verifies that the original source of the review is Google.
Took some trial and error and a few visits, but in the end it was done. He visited on short notice which was very helpful.
A new boiler installation in Westminster typically costs £1,500 to £3,750, depending on whether you need a combi, system or regular boiler and how straightforward the job is. Combi installs sit at the lower end; system and regular boilers cost more because of the extra cylinder and tank work involved. We confirm the exact price with a written quote after a free home survey.
Most installations in Westminster take around 8 hours and are completed within a single working day. More complex jobs, such as relocating the boiler or upgrading old pipework in a period conversion, may need extra time, which we'll flag during your survey.
Pimlico conversion flats usually suit a compact combi boiler that works around older pipework and a smaller airing cupboard. Purpose-built and new-build flats near Victoria tend to have more room for a wall-hung combi or system boiler in a dedicated utility space. We recommend the right fit at survey stage.
Yes. Westminster sits within Thames Water's hard water supply area, so limescale can build up inside a boiler's heat exchanger over time. We fit a scale reducer as standard and recommend annual servicing to protect efficiency and lifespan.
Yes, BeFix is Gas Safe registered under number 967796, and every installation is carried out by a Gas Safe registered engineer, tested and registered on completion.
Yes, we offer finance options so you can spread the cost of a new boiler installation. Ask our team for current terms when you book your survey.
Every installation includes a 12-month workmanship warranty from BeFix, plus up to 12 years' manufacturer warranty depending on the boiler model.
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