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Boiler Installation Westminster

Fixed-price boiler installation in Westminster (SW1, W2 and NW8), serving Pimlico, Maida Vale, Paddington and St John’s Wood. Start with an online quote for boiler replacement today.

Next-day installation slots
Up to 12-year warranty
Gas Safe registered engineers
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Reliable Boiler Installation & Replacement in Westminster

Westminster’s stucco terraces in Pimlico and Belgravia, Edwardian mansion blocks in Maida Vale and mews houses around Marylebone shape many of the boiler installations we carry out across SW1, W2 and NW8. Boilers are often in basements, kitchen cupboards or lightwells, so we survey flue routes, access and shared walls first.

Most of Westminster sits in a conservation area, and many buildings are listed, so external flue positions are tightly controlled. We plan discreet rear or lightwell terminals, check consent requirements with the freeholder or council early and schedule work around parking suspensions and the Congestion Charge zone to keep disruption low.

Whether you’re replacing an old back boiler in Pimlico, upgrading to a combi in Maida Vale or fitting a system boiler in a large St John’s Wood house, our Gas Safe engineers commission every installation and register the warranty, so your Westminster boiler runs efficiently from day one.

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Why Replace Your Old Boiler in Westminster

Many of the boilers we replace in Westminster are 12 to 15 years old or more, fitted when townhouses were converted into flats and left alone since.

Solid-wall Georgian and Victorian brickwork and single-glazed sash windows let heat escape quickly, so an inefficient boiler burns far more gas to keep central London homes comfortable through damp winters.

Thames Water supplies hard water, and limescale is one of the most common reasons older boilers in SW1, W2 and NW8 fail, a call-out we attend often.

Westminster’s leasehold mansion blocks and converted townhouses often share pipe runs and flue routes, so we check freeholder approval, gas supply and access carefully before starting any installation.

Many older Westminster flats and townhouses still use regular boilers with loft tanks that can freeze or leak in cold snaps. Switching to a combi removes those tanks, frees up valuable space and gives instant hot water whenever you turn on the tap.

Upgrading to a new A-rated boiler lowers your bills, adds smart heating controls and brings a manufacturer warranty of up to 12 years, so Westminster homes see fewer breakdowns.

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Our Best-Selling Boiler Packages in Westminster

Browse our most popular boiler installation packages, selected to suit different property sizes, hot-water requirements and budgets in Westminster.

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Areas We Cover

We provide home energy installations nationwide, helping families across the UK upgrade their heating and energy systems. With next-day installation slots often available, getting started couldn’t be easier.

We have major hubs in Wales, London and the Midlands. Our accredited engineers deliver a fast, reliable service wherever you live. You can get a quote online today using our streamlined system, and we’ll match you with an engineer in your local area.

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How Much Does a New Boiler Cost in Westminster?

In Westminster, a like-for-like combi replacement usually costs between £1,800 and £3,500 fully installed, depending on the brand and output. This covers most flats and mansion-block homes in Pimlico, Maida Vale and Paddington, where the new boiler stays in the same position.

For a system or regular boiler, found in larger townhouses and mews houses in Belgravia, Marylebone and St John’s Wood, expect around £2,200 to £4,000, particularly if the cylinder or loft tank also needs replacing.

Converting from a tank-fed system to a combi, removing a back boiler or working in a listed townhouse or basement flat with restricted access typically costs £3,000 to £5,000. EazyHeat provides a fixed, itemised quote before any work begins.

Every Westminster quote is broken down line by line, covering the boiler, flue, controls, labour and commissioning, so you know exactly what you are paying for and the price agreed before work begins is the price you pay at completion.

Choosing the Right Boiler When Replacing Your Old Gas Boiler in Westminster

When it comes to replacing an existing gas boiler, you have several options depending on your home, lifestyle, and budget in Westminster.

Combination Boilers (Combi) Westminster

  • Heat your central heating and hot water directly from one compact unit.
  • No separate hot water cylinder needed.
  • Best suited to Pimlico or Paddington terraces and households with one bathroom.
  • Highly energy-efficient, with minimal heat loss.

Ideal for: compact flats, mews houses and small to medium homes in areas like Pimlico and Paddington.

System Boilers Westminster

  • Take water directly from the mains and store it in a hot water cylinder.
  • Provide a constant supply of hot water to multiple taps at once.
  • More suited to larger Belgravia or St John’s Wood homes with higher hot water demand.

Ideal for: Families with multiple bathrooms in larger SW1 and NW8 homes and households with heavy daily hot water use.

Regular Boilers (Conventional) Westminster

  • Also known as traditional or heat-only boilers, still common in older Westminster flats and townhouses.
  • Use a separate hot water cylinder and cold water storage tanks, typically in the loft space.
  • Best for homes with an existing tank-fed setup in Marylebone or Maida Vale.

Ideal for: Larger townhouses in SW1 or W1 already configured for a regular boiler, or with high hot water needs.

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Flexible ways to pay

Choose from a range of convenient payment options, including flexible finance plans or paying for your installation in full.

Flexible Monthly Repayments

Representative APR 11.9% (fixed)

Spread the cost of your installation over a longer repayment term with manageable monthly payments.

As long as your scheduled monthly payments are maintained, you can make additional payments at any time. Overpayments may help reduce the total interest charged and shorten the length of the agreement.

You will also receive the additional protections provided by the Consumer Credit Act 1974.

Representative example: Cash price £2,000. No deposit required. Total amount of credit £2,000. Interest rate 11.9% per annum fixed. Representative APR 11.9%. Agreement term 60 months. 60 monthly payments of £43.78. Total amount repayable £2,627.08.

Cash, Card or Bank Transfer

Pay for your installation in full

Choose from several convenient ways to pay for your installation:

  • Make an online bank transfer to Eazy Heat Ltd. using the bank details shown on your invoice. This is our preferred payment method.
  • Make a card payment over the phone through our office.
  • Make a cash payment after your installation has been completed.
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We act as an introducer appointed representative of Vendigo, we’ll never quote you real time rates. We’ll simply send you a link to apply for finance from them.

EAZY HEAT LTD (FRN: 1020736)] is an Appointed Representative of Koze Group Ltd, a credit broker, not a lender. Koze Group Ltd is authorised and regulated by the Financial Conduct Authority (FRN 811281) and registered in England (08357963). We offer finance products from a panel of lenders. Credit is subject to age and status.

Why Choose EazyHeat?

At EazyHeat, we don’t just install systems. We provide a complete, customer-focused experience that puts speed, simplicity, and service first. Homeowners across the UK choose us for:

Fast Turnaround Times

Choose your install date, and we’ll do the rest. No drawn-out processes or unnecessary delays.

12-Year Warranty as Standard

All boiler installations come with a market-leading 12-year parts and labour warranty.

Highly Rated Service

We’re proud of our reputation. From initial quote to final handover, we deliver consistently top-rated service across the UK. That’s why we’re rated Excellent on Trustpilot!

Gas Safe Registered Installers

Every job is carried out to the highest safety standards by our fully qualified, experienced engineers.

UK-Wide Coverage

No matter where you’re based, we’ve got expert installers ready to help – from major cities to rural towns.

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What Our Customers Are Saying

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Boiler Installation FAQs

Yes. Mansion blocks have shared walls, communal flues and freeholder rules. We check ventilation, flue positions, gas supply and lease restrictions, liaise with the managing agent where needed and fit a compact combi that meets Part J and building regulations with minimal disruption to neighbours.

Often. Most of Westminster sits in a conservation area and many homes are listed, so front elevation flues rarely gain approval. We plan discreet rear or lightwell terminals, check requirements with Westminster City Council and your freeholder, and keep your installation compliant and unobtrusive.

Thames Water supplies hard water, which leaves limescale on heat exchangers and pipework and reduces efficiency. We flush the system, fit a magnetic filter and can add scale protection. Annual servicing keeps your boiler running well and protects your manufacturer warranty.

A like-for-like combi swap in a typical Westminster flat or townhouse takes 4 to 6 hours. Removing a back boiler or converting a Georgian townhouse from a regular system usually takes a full day, occasionally running into the next morning for commissioning. We plan parking and access in advance, tidy up fully and explain your controls.

Alongside Westminster city centre, we install boilers in Pimlico, Belgravia, Maida Vale, Paddington, Marylebone, St John’s Wood and Mayfair, as well as Kensington and Camden. If you are just outside the SW1, W2 and NW8 postcodes, we also cover nearby London, St Albans and Reading. We regularly work across central London.

Speak With Our Boiler Experts

For personal guidance about your property or installation, call EazyHeat on 0330 133 5170.

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