Boiler Installation

5 star rated boiler installation services

Tried, Trusted, Reviewed

Discover the best boiler installation service in and around London

You know that feeling when you wake up in the morning and you’re not quite sure if your boiler will be working? Well, that’s what we fix: we take away the worry and the fear of waking up to a freezing cold house and an even colder shower by giving you the best boiler installation service in and around London.

In fact, we’ve got tons of 5-star reviews for our boiler installations and because we’re accredited by two of the biggest names in heating we can offer you an extended guarantee free of charge on most of our boiler installations.

A guarantee on your boiler installation you can rely on

Most of our boiler installations take two days to complete: one day to properly and safely install the boiler, and another to sufficiently and effectively clean the heating system.

We understand this level of service isn’t for everyone, that’s why we offer a variety of boiler installation packages to suit most budgets. Starting from £2099 +vat, your perfect boiler installation could be more affordable than you think.


boiler repair and installation London and nearby
boiler installation and repair London and nearby

We provide certificates with all of our boiler installations

After your new boiler installation is complete we’ll provide you with an Adey water quality certificate which could help to protect your boiler guarantee. Most manufacturers and quality installers will advise you to have a full central heating powerflush as part of any new boiler installation. The water quality ensures that your boiler installation can operate efficiently and will keep it in the best possible condition to minimize running costs and reduce the risk of costly breakdowns.

At Heatsy we’re trained and accredited by the two leading names in heating, Vaillant and Viessmann and can offer up to a 12 year guarantee on our installations.

A properly installed gas boiler will give you 15 to 20 years hassle free heating

New boiler installation with a full powerflush of the heating system

We strongly advise anyone with a new boiler installation to have a full powerflush of the heating system. A hot chemical flush or a magnacleanse will only remove surface dirt from the pipes and radiators, a boiler installation that hasn’t been flushed for 10+ years will have stubborn deposits of magnetite which will spread throughout the new boiler installation and could eventually void your guarantee.

Boiler repair and installation services London and nearby by Heatsy
Boiler & Heating Services for Landlords

New boiler installation with a gas safety certificate that protects your building insurance

Your new boiler installation also comes with a gas safety certificate to ensure your complete safety and peace of mind. A building regulations certificate is needed to prove you’ve had your boiler installation carried out by a competent professional, and ensure it’s legal to protect any building insurance you might have. It also gives you all the information about your guarantee and what you need to do to ensure it stays valid.

If you’re experiencing issues with your heating system we will be able to fix it, if not, we pay you double our diagnostics fee.

The Importance Of A Home Survey For Your Boiler System

The home survey is your opportunity to meet us before the boiler installation day. We don’t use salespeople, so the engineer you meet at the survey will always give you an honest assessment and answer any questions you might have.

During the home survey, we will talk with you to understand your routine and learn what’s important to you and what you want from your boiler installation. We will recommend different options bespoke to you and your family’s needs.

Once we have all the information we need we will present you with three packages, each designed to ensure that you have a boiler installation that works for you and gives you exactly what you want.

Please contact us to arrange an exceptional survey you can rely on.

Heatsy your reliable heating engineers London and nearby places

Key to a reliable heating system is proper maintenance

At Heatsy we don’t just service your boiler and leave in 20 minutes like so many in our industry. We check the water quality, balance the heating system, check the water tanks, controls and radiators and we leave you a report with all of our findings and any recommendations so you can make an informed decision in your own time and prevent any major problems before it’s too late.

An emergency boiler repair in London

At Heatsy we specialise in repairing old and new boilers by all manufacturers, we offer a 24/7 same day response service. All our work is guaranteed and if we can’t diagnose the fault with your boiler or heating system we’ll pay you DOUBLE the diagnostics fee. 

Watch the video and see why we insist on powerflushing 90% of our installations, and how we can help if you’re boiler brakes down.

Tried, Trusted, Reviewed

The Heatsy promise:

“We promise to always give 100% in our efforts to help you in your time of need, to never take advantage, overcharge or give you unnecessary advice.

To keep our charges fair, competitive and 100% transparent while keeping our service above and beyond by using only fully vetted, qualified, experienced and skilled tradespeople.

Should you ever have a query about the service you have received, the price you were quoted, or the work we have completed, we promise to treat the situation with the seriousness it warrants and give you the dignity, respect, and honesty you deserve." 

Mr Lee Moloney

As standard, our heating & boiler services come with:

boiler repair with guarantee 12 months

12 Month Guarantee

boiler servicing 5 star reviews

5 Star Reviews

Genuine Manufacturer Boiler Materials

Genuine Manufacturer Boiler Materials

Gas Safe Registered Engineers

Gas Safe Registered Engineers

Heatsy promise to deliver excellent boiler repair services

The Heatsy Promise

Professional boiler installation by Heatsy: trained and accredited by Vaillant and Viessmann

At Heatsy we’re trained and accredited by the two leading names in heating, Vaillant, and Viessmann, and can offer up to a 12-year guarantee on our installations.

These accreditations mean that we maintain very high standards for all of our services. You can rest assured that all Heatsy engineers have expert knowledge of the products we install which ensures our boiler installation services are some of the best in London.

Our Google Reviews

Heatsy IconHeatsy

Heatsy Ltd, 4 Selsdon Crescent, South Croydon

4.9 67 reviews

  • Avatar Sheshebens Algonquin ★★★★★ 3 months ago
    Heatsy completed our boiler repair quickly and efficiently.
    We called at 12pm and were offered two appointments, 4-6pm that evening or 8-10am the following morning at a lower rate.
    … More As it’s winter and mom was visiting from the US we decided to get the emergency appointment.
    The engineer called and text before he arrived and kept me updated throughout the work.
    Coming from the states we’re used to great customer service and I must say Heatsy made me feel right at home.
    Your slogan should be ‘British class with American service’
    I’ll be telling all the other moms at the next PTA meeting 😊
  • Avatar Zacharie Paimboeuf ★★★★★ 3 months ago
    Great boiler service, the engineer took everything apart and cleaned the inside and changed the seals.
    He also took a water sample from the boiler which showed the system was dirty
    … More and he was able to book me in to get my system cleaned without me needing to do anything.
    Very helpful and professional.
    Thank you
  • Avatar Sarah Luetchford ★★★★★ a month ago
    Was extremely helpful and explained what needed doing and was honest about what I needed to consider. Once he had finished and I messaged with an enquiry my engineer offered to come … More back and have a look. They sent a follow up message to ensure everything was still working and to check it was ok. Would definitely use again.
  • Avatar Martin Gilbert ★★★★ 3 months ago
    I had a combined boiler service with landlords gas safety certificate.
    The company were very professional and my tenant was very happy with the engineer.
    All paperwork and certificates
    … More were emailed in real time and I could track the engineer which is a nice touch.
    Four stars as the appointment had to be rescheduled due to over running work.

Other services we offer

System boiler

New Boiler Installation

If you are interested in having a new boiler, we can inform you about the best and affordable solution. we offer a variety of boiler installation packages to suit most budgets.

boiler repair and installation London and nearby

Annual Boiler Service

We service gas boilers everyday and have tons of 5 star reviews to vouch for us. We guarantee to leave you’re boiler performing better than when we got there.

Boiler & Heating Services for Landlords

Services for Landlords

With automated service reminders, real time job reports, engineer tracking and a cloud based storage system we offer hassle-free compliance for all your rental properties.