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55+ years

Trading in London

24/7
Emergency
76%
Repeat customers
12 month
Guarantee
Gas Safe Registered - Vaillant & Worcester Bosch Accredited

Boiler Installation In London

Free Estimates - 10 Year Parts & Labour Warranty

We carry out free estimates for new boilers and can install any boiler manufacturer if you have a preference. Give us a call and we’ll arrange a time to come over for a free estimate.

Call 0207 386 8888
Get A Free Estimate
55+ years

Trading in London

24/7
Emergency
76%
Repeat customers
12 month
Guarantee
10-Year Warranty - Vaillant & Worcester Bosch
Accredited Installers

Boiler Installation And Estimates

We work in partnership with Vaillant and can give an extended 10-year guarantee on all parts and labour – you’ll just need a Vaillant filter fitted to help protect the new boiler from the system. We’re also accredited installers for Worcester Bosch, giving a 10-year warranty on all parts and labour. Again, a filter extends the warranty from 8 to 10 years – and if some further measures are taken on the system, we can offer 12-year warranties on certain models.

10-year warranty is standard on Vaillant and Worcester Bosch boilers, and we fit all boilers with new copper pipe and fittings for peace of mind. All boilers are fitted to the highest standard and all installations are checked. We were recently awarded Best Boiler Installer for London at the Energy Efficiency Awards. Dust sheets are used to protect your property and we’ll be as clean as possible throughout the works.

Replacement & Upgrades

Boiler Replacement & Upgrades

Not sure whether to repair your existing boiler or replace it? As a rough guide, if your boiler is over 10-15 years old, breaking down repeatedly, or becoming noticeably less efficient, replacement is often the better long-term value – newer condensing boilers can be significantly more efficient than older models, which usually means lower energy bills.

Common upgrade and replacement scenarios we handle regularly:

  • Swapping a conventional (heat-only) boiler for a combination boiler, removing the need for a separate hot water tank
  • Replacing an old G-rated boiler with a new A-rated condensing model
  • Upgrading from an older combi to a newer, smaller and quieter model
  • Adding smart controls and thermostats to a new installation for better day-to-day efficiency

We’ll always give you a clear, honest view on whether a repair or a full replacement makes more sense for your situation – see our boiler repair page if you think a repair might be all you need.

Peace Of Mind

Peace Of Mind With Every Install

Our priority is your satisfaction with our work, and we give you peace of mind by registering all boilers with Gas Safe and carrying out all our work under warranty.

So don’t hesitate to contact us for a free quote on a boiler replacement, or a free estimate on a boiler change. All boilers are fitted – from combination boiler swaps, to A-rated condensing boilers, to conversions from conventional boilers to combination boilers. All work is carried out by experienced Gas Safe engineers.

Consultation, Safety & Standards

Honest Advice, Safe Installation, Every Time

Before any installation goes ahead, we’ll talk you through your options properly – there’s no pressure to choose the most expensive boiler, and we’ll always recommend what’s right for your property and budget, not what’s easiest for us to fit.

Gas Safe Registered

Every installation is carried out and signed off by a Gas Safe registered engineer, and registered with Gas Safe on completion as required by law.

Building Regulations Compliant

All work meets current Building Regulations Part L and Gas Safety (Installation & Use) Regulations, with a Building Regulations Compliance Certificate issued automatically through Gas Safe notification.

Manufacturer Accredited

We’re approved installers for Vaillant and Worcester Bosch, trained to each manufacturer’s own fitting standards to keep your warranty valid.

No Pressure, Honest Advice

We’ll never recommend a replacement boiler you don’t need – if a repair is the right call, we’ll tell you that instead.

Clean, Careful Work

Dust sheets used throughout, and the work area left as clean as we found it.

All Work Guaranteed

Every installation is checked on completion and backed by our own guarantee, on top of the manufacturer’s warranty.

Free On-Site Survey

On-Site Survey & System Assessment

Every free estimate includes a proper on-site survey – we don’t quote blind. Here’s what we check before recommending a boiler or giving you a price:
Step 01

Step 1 - Current Boiler Review

Current boiler type, age and condition, and the reason for replacement.
Step 02

Step 2 - Property & Hot Water Demand

Property size and hot water demand, to recommend the right boiler output.
Step 03

Step 3 - Pipework, Flue & Gas Supply

Existing pipework, flue route and gas supply, to flag any extra work needed.
Step 04

Step 4 - Location & Space

Available space and the best location for the new boiler.
Step 05

Step 5 - Your Priorities

Budget, brand preference, warranty length, or energy efficiency – all factored into the final recommendation.
Once the survey is complete, you’ll get a clear, written estimate with no hidden extras, so you know exactly what’s included before agreeing to anything.
Why Anderson & Sons

Why Choose Anderson & Sons?

Gas Safe Registered Engineers

Fully qualified and experienced across all boiler manufacturers.

Free Estimates

We’re happy to travel a reasonable distance for a free, no-obligation quote.

10-Year Warranty

On all Vaillant and Worcester Bosch installations, with up to 12 years available on certain models.

Quality, Guaranteed Work

All boilers fitted with new copper pipe and fittings, checked and registered with Gas Safe.

Coverage

Areas We Cover

We carry out boiler installations across South and West London, from our base in Fulham.

Fulham

Chelsea

Putney

Barnes

Wandsworth

Battersea

Notting Hill

Kensington

Hammersmith

View All Areas
FAQs

Frequently Asked Questions

Yes – we carry out free, no-obligation on-site surveys for new boiler installations across London. We don’t quote blind – we’ll always come and see your property first.
10-year parts and labour warranty is standard on Vaillant and Worcester Bosch installations. With a Vaillant filter fitted and certain extra measures on the system, we can offer up to 12-year warranties on certain models.
We’re accredited installers for Vaillant and Worcester Bosch, and can install any boiler manufacturer if you have a preference. We’ll give you an honest recommendation based on your property and budget.
As a rough guide, if your boiler is over 10-15 years old, breaking down repeatedly, or becoming noticeably less efficient, replacement is often the better long-term value. We’ll always give you a clear, honest view – and if a repair is the right call, we’ll tell you.
Most straightforward boiler swaps are completed in one day. More complex installations – such as conversions from conventional to combi, or relocations – may take two to three days. We’ll give you a clear timeline as part of your written estimate.
Yes – every installation is registered with Gas Safe on completion, as required by law. You’ll automatically receive a Building Regulations Compliance Certificate through the Gas Safe notification.
Free Quote

Request A Free Boiler Installation Estimate

No obligation, no pressure – just honest advice and a clear, written estimate. Call us on 0207 386 8888 or use the contact form below.

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Please Note: Congestion charges and parking costs (if not available) are in addition. Prices are exclusive of VAT. The first hour charge is payable at the time of booking. All prices are per hour and VAT is charged separately. View our pricing here

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