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Boiler installation London

New boiler installation, boiler replacement London

Boiler replacement and central heating installations in London. Multi-trade install new boilers in London and replace old boilers anywhere inside the M25 and Surrey, Sussex, Kent, Hampshire, Berkshire & Hertfordshire. We install new boilers and replace combination boilers (combi boilers), high efficiency gas boilers, central heating systems, central heating boilers, condensing boilers and Megaflo systems.

Guaranteed lowest prices in London for boiler replacement!

Take a look at our example prices below and you'll see that we're cheaper than all of our competitors including British Gas, e.on and NPower, and in the unlikely event that you find a cheaper offer, we guarantee to beat it!**



Vaillant ecoTec 24


Worcester Bosch Greenstar

Ferroli 26kw

  • 2 year warranty
  • Free £200 boiler trade in
  • Combi boiler unit
  • Flue
  • Clock
  • Magnaclean
  • Free carbon monoxide detector


Vaillant ecoTEC combi boiler Pro 24

  • 5 Year Warranty
  • Free £400 boiler trade in
  • Combi boiler unit
  • Flue
  • Clock
  • Magnaclean
  • Honeywell 2-way 7 day thermostat
  • Free carbon monoxide detector

Worcester Greenstar 24i Junior

  • 2 Year Warranty
  • Free £200 boiler trade in
  • Combo boiler unit
  • Flue
  • Clock
  • Magnaclean
  • Honeywell 2-way 7 day thermostat
  • Free carbon monoxide detector
Hundreds of pounds of free extras with every boiler

Plus..! All these extras come as part of your boiler installation at NO EXTRA CHARGE!

We know that there are lots of companies competing for your business but we genuinely believe Multi-trade is the right choice for you. As well as these fantastic extras, you get a brand new energy efficient boiler, first class service, a 10% account discount for every future purchase (whether it's a gas product or not), a knowledgeable customer service team and the confidence of buying from a company that is dedicated to your satisfaction. No-one gives you as much value as Multi-Trade

Boiler trade in

£400 trade-in on your old boiler!

For a limited time only, install a new Vaillant boiler with us and we'll give you £400 for your old boiler. We'll also take away your old boiler and dispose of it in a responsible, environmentally friendly manner. Don't want a Vaillant? No problem! We'll still offer you £250 for your old boiler when installing another brand.

We'll also take away your old boiler and dispose of it safely, and we always leave your premises neat and tidy before we leave!


Guarantee to beat on price

Guaranteed not to be beaten on price **

We're are so confident of our pricing structure, that we guarantee to beat any written, like for like, boiler installation quotation from e.on, British Gas or NPower.

At Multi-trade, we only ever install reputable boilers from well known manufacturers such as Vaillant, Worcester Bosch, Baxi, Biasi, Ideal, Potterton, Glow Worm, Saunier Duval, Ariston, Vokera and Ferroli combi and condensing boilers.

Free boiler quotations

Free Central heating quotes!

Our gas and heating quotations are free, fully specified and come without obligation. We aim to get our quotations to you within 48 hours of our first visit.

Whilst a lot of companies will issue you with a paper based quote that at best splits labour and materials, we issue quotations which contain as much detail as we can provide, from the materials we intend to use, what we intend to do for the price, and how long we estimate to take.


Guarantee to beat on price

5 year parts and labour warranty!

All customers receive our 2 year guarantee against faulty installation as well as the manufacturers warranty. But if you install a Vaillant in conjunction with the manufacturer we can offer a 5 year parts and labour warranty! ***

In either case, we provide free, detailed quotations. Our Gas Safe engineers have many years experience installing boilers, and we will select the correct boiler with regard to size and rating for your home or property.

Boiler trade in

15% Discount off your yearly service!

Whether opt for our fantastic Vaillant deals or one of our other boiler manufacturers, most warranties stipulate that in order to qualify for your warranty, an annual boiler service is required.

When you choose Multi-Trade, we'll also give you a 15% discount off the price if your annual service. We're already better value than most of our competitors, an an extra 15% makes us unbelievable value for money!

Guarantee to beat on price

50% discount off Magna Cleans!

Your gas central heating system may contain a lot of corrosion and lime scale which will ultimately damage your boiler, pumps and valves. A water filtration system will remove particles and compounds that are freely circulating through your central heating system preventing these particles from entering your boiler and pumps and clogging them up.

Choose Multi-trade and we'll take a massive 50% off the price of a Magnaclean!


Boiler trade in

Free keep warm pack for over 60's

We know that heating bills are one of life's annoying necessities and for older people it's essential that you're warm and comfortable when the weather turns cold.

That's why we're giving over 60's a free keep warm pack containing a fleece blanket, gloves, a hat and socks so that you can keep the thermostat a few degrees lower and save money off your heating bills.


Boiler trade in

Free carbon monoxide detector

It's estimated that between 30 and 50 people die each year from carbon monoxide (CO) poisoning, and many more are injured from unknowingly inhaling this colourless and odourless gas.

Our free carbon monoxide detector, in conjunction with ensuring boilers, ovens and other appliances are properly fitted and maintained will help to keep your home and family safe.

Boiler trade in

Self Service Document Centre

Free access to your own online Self Serve portal to view your orders, accounts, and payments. Never lose your important documents thanks to free storage of all your gas safety certificates, electrical installation certificates, job sheets, plus lots more.

The easy to use interface will help you see at a glance what you've booked, and when!

Boiler trade in

Annual boiler service reminders

There's very few things more annoying than finding out you haven't qualified for you free warranty because you've forgotten to do something. or haven't complied with the terms.

To make sure you comply with the conditions of your warranty, we'll remind you before your annual service is due, so that you don't miss it, and we'll also tell you everything you need to do to make sure you remain covered!

Plumbing and gas services

What can we do for you?

Replacing your combi or conventional boiler

If you've had your boiler for over 10 years, you're probably about due for a change. If you've had it for over 15 years - count yourself lucky it's still working! You may or may not get reliability issues as your boiler ages. But either way, the boiler you have now is probably an inefficient water heater by today's standards.

Vaillant boiler

Energy efficient modern combi boilers

Replacing it with a new high efficiency boiler could save you as much as 30p in every £1 on gas consumption. That's a pretty significant cash saving in the long run. If you have a conventional boiler system with a hot water cylinder, you can save a cupboard full of space by swapping to a combination boiler as you won't need a cylinder. And space costs money in London!

Vaillant boiler

Which boiler to choose?

Choosing which new boiler to install can seem complicated and confusing. There are a number of factors to consider. Your budget. Your lifestyle. Is it a rental property? The size of the property. How many bathrooms you have. Even how many occupants are in it. It's important to get it right. If your boiler is oversized, you'll waste gas and increase your fuel costs. If it's undersized, you may find that you can't get enough heat or hot water. Our heating engineers will work out the best sized boiler for your situation when preparing your quote.

Vaillant boiler
Open and honest pricing

So what does it all mean? What are you offering?

* 250 trade-in discount: Available when you trade in your old boiler and have a new energy efficient boiler or central heating system installation. One discount per household. Offer subject to change and may be withdrawn or amended at any time. Cannot be used in conjunction with any other sales offer. Only applies to properties in mainland Great Britain (not Northern Ireland) and you must be the owner of the property where the boiler or central heating system is to be installed.

* 400 trade-in discount: Available when you trade in your old boiler and have a new Vaillant energy efficient boiler or central heating system installation. One discount per household. Offer subject to change and may be withdrawn or amended at any time. Cannot be used in conjunction with any other sales offer. Only applies to properties in mainland Great Britain (not Northern Ireland) and you must be the owner of the property where the boiler or central heating system is to be installed.

* Prices shown are after the £400 or £200 boiler trade discount and based on on an exact like for like swap, assuming no extra work (e.g. running extra piping or re-siting the boiler) is required - in the event that extra work is required we'll tell you this up front on your free quote. All prices on this page exclude VAT.

** We can only guarantee cheaper pricing against an indentical like for like written quotation

*** Terms and conditions apply. But as you know by now, Multi-trade is all about ease and transparency. So, without having to wade through small print here is what you will need to do to ensure that you keep the warranty:

  • A power flush and magnetic filter must be installed with your new boiler. This is to ensure that your new boiler is not damaged by residue from your water supply or central heating.
  • A boiler service must be performed by Multi-trade each year - this ensures that your boiler is working as it should.
  • Keep your Benchmark service book in a safe place. It's a record of the service history of your boiler.

That's really it from your perspective. We'll fill in the Benchmark logbook every time we service it. We'll also keep a copy of the service notes on our database. As a Multi-trade customer, you will always have access to this through the portal. This is automatically set-up for you when you become a customer and a login in and password will be emailed to you. And finally, we'll remind you every year when your boiler needs servicing.

Multi-trade and Benchmark

Benchmark is a nationally recognised scheme that places the responsibilities on both manufacturers and installers to ensure best practice in installation, commissioning and servicing of domestic heating and hot water products in line with Building Regulations in England and Wales.

It is managed and promoted by the Heating and Hot Water Industry Council (HHIC). Benchmark requires that installers complete a Benchmark checklist when commissioning a new heating appliance installation. Multi-trade has committed itself to the Benchmark scheme and all new boilers and central heating systems are installed to strict compliance with these regulations.

Multi-trade has it's own Benchmark commissioning checklist which is issued to all Multi-trade Gas engineers and completed with each and every new boiler or gas central heating installation.


TestimonialIt's a very good boiler. I am very happy with it thank you very much. Yes, you can use me as a testimonial.

Harriet Marsh, London

TestimonialI'm always happy to provide you with a recommendation. Multi-trade have always installed central heating systems into my flats. And they've always done a first class job.

Raymond Peters, London

TestimonialWhen the boiler finally gave up I called several plumbing companies. Multi-trade stood out from the beginning with a very professional manner. They gave me a good quote which looked professional. I checked the plumber and he was accredited, so I went ahead. I have not regretted my decision. The job was done very quickly and to a high standard. The engineer worked very hard and left the kitchen tidy afterwards. This is a very good company and I will use them again.

Hannah Burton, London

TestimonialTo be honest with you I was dreading calling someone when my boiler finally gave up because you get this impression that you're going to have to pay a fortune for nothing, however I was pleasantly surprised. Not only did I get a very good service when it came to installing the boiler but the quote was much clearer than everyone else's by far so I knew what I was paying for. The boiler itself is so much tidier than the last and to top it all off, I'm saving a fortune on gas bills because it's so much more efficient!

Laurence Cockerill, Bermondsey

The Multi-trade difference

There are plenty of companies out there competing for your business - and you need to make sure you're armed with all the facts before you make a decision about which one to choose. Here are a few things to check before you decide - we're confident that if you're looking for great service you'll choose Multi-Trade!

  • Does the company or tradesperson you're considering offer free quotations?
  • Do they offer an open and honest pricing structure with no hidden costs?
  • Are their engineers registered with Gas Safe?
  • Remember - it is a legal requirement when working with gas.
  • Do they have a contactable office, not just a mobile in case of any queries?
  • Does anyone answer the phone in the day?
  • Are their tradespeople honest, reliable, polite and vetted?

If the answer to any of these questions is 'no' then give us a call - we can confidently answer 'yes' to all of these questions. Not sure? Check out our testimonials page to see what some of our previous customers think of our customer service!

Our services

Gas and heating services

Our plumbing & heating services
Boiler faults & repairs
Boiler installations
Gas safety certificates
Boiler service and maintenance
Radiator power flush
Commercial boiler repairs
Commercial boiler maintenance
Megaflo hot water systems
Landlord's gas & electrical reports

Plumbing services

Plumbing services
Solar panels
Magnetic water filters

Other plumbing services

Frequently Asked Questions
Work with us
Gas safety guide for landlords
Prices and rates
Our other services
Gas & heating services
Plumbing & drainage services
Decorating services
Gardening and landscaping services
Electrical services
Landlord & homeowners zone
Locksmiths & home security
Handyman services
Carpet fitting services
IT and computer repair services
Free services

Our bespoke Customer Management System allows us to track every aspect of your job to ensure that we deliver first class service to you every time, and our customer Self Service portal allows you to manage every aspect of your account.

When you become a Multi-trade customer you automatically get access to your own Self Serve account. It allows you to pay invoices, store documents - such as gas safety certificates and boiler logs and will even provide reminders when important dates are coming up with regard to your property maintenance.

And as far as we know you won't get that as part of the service anywhere else!

Refer and Reward


Our Refer & Reward scheme gives you points every time you recommend someone who orders from us. You can either put your points towards your next Multi-trade job or save them for a cash reward once you've collected enough.

With cash rewards and money off your next bill, now there are even more reasons to recommend us! Explore more >

Our services
Customer Service

If you need some advice on any of our services, our professional team will be pleased to speak to you.

You can get in touch by:

If you're an existing customer it will help us if you have your order or account number to hand when calling or e-mailing us.

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