About Us

Industry leading heating engineers

Run by our family, for your family

You know that feeling of waking up to a freezing cold house, finding out the boilers broken and the dread of having to face an ice cold shower on a gloomy wintry Monday morning? 

Well, we fix that.

We help to make your life more comfortable by giving you hassle free heating for a reasonable price with proven results which are guaranteed to last, in fact we’ve got tons of 5 star reviews from our other happy customers.

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


At Heatsy we know heating, that’s what we do. From boiler repairs to heating upgrades and everything in between if it’s heating, it’s Heatsy.

Heatsy was formed by Lee, a gas engineer with over 20 years of experience in the heating industry. After serving an apprenticeship with British Gas, Lee worked for many of London’s other well know companies holding positions including Lead Engineer, Quality Control Supervisor and Contract Manager.

During his apprenticeship at British Gas Lee recalls  “There was a massive focus on customer service, from where we parked our vans and the way we walked up the path to how we interacted with the customer and the way went about our work. Everything was designed to make sure the customer felt happy, it was just as important as our technical ability”

Unfortunately this trend didn’t continue after Lee left British Gas “After some great years at BG I decided it was time for a new challenge and I was instantly shocked at how the other companies operated. Everything was about profit, how much can you squeeze out of a job, what can you sell, what can you get. Don’t get me wrong, I obviously understand a business needs a healthy profit but I believe it should be made ethically, not by convincing customers to replace boilers that are barely out of the warranty period.”

 Lee formed Heatsy to offer a great service for a fair price with honest advice “I had this great training, it was really second to none when I did it back in 2000/2001 and I thought to myself, it’s just being wasted working for these companies, I’ll set up a new company based on what I was taught all those years ago and offer a classic British Gas service that’s fair, honest and reliable”

And so he did, with our Heatsy Promise at the centre of everything we do Heatsy was developed to repair broken boilers safely, efficiently and honestly and to only advice a replacement when it is absolutely necessary.             

Saving the planet one heating system at a time

As a family run company the future of our planet is important to us, what we leave behind for our children depends on the choices we make today.

That’s why at Heatsy we’ve introduced our carbon neutral boiler installation initiative.

For each and every boiler we install we’ll offset one tonne of CO₂ by supporting a tree planting project in the UK or abroad.

Each year we service your boiler we’ll offset another tonne and also give you a choice of amazing eco friendly carbon offsetting projects to support, from reforestation in Kenya to wind farms in the Americas and trees for schools in the UK.

You’ll get a digital certificate from Carbon Footprint for each project you’ve supported and showing how much CO₂ you’ve offset with information on how you’ve helped.

To achieve our goal of helping to make the world better we need your help.

In return for your support we’ll work with you to design a quality heating system which reduces your carbon emissions, saves you money and offers unrivalled sustainable comfort.

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

Our heating & boiler services include:

Why Choose Us

A socially responsible company with fair and competitive pricing that’s transparent and honest, Heatsy offers the total peace of mind and reassurance you can only achieve through decades of experience and industry leading service levels.

All of our boiler repair engineers are trained and accredited by the two leading names in heating, Viessmann and Vaillant. That means we’ve been trained to a higher standard than most and continually maintain a level of service that’s guaranteed to fill you with confidence.

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

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.

Areas of London and nearby places we serve

Madia Vale, Little Venice, Marylebone, Hammersmith & Fulham, Shepherds Bush, Mayfair, Paddington, Holland Park, Kensington, Notting Hill, Ealing, Acton, Hanwell, Boston Manor, Soho, Westminster, Fitzrovia, Queens Park, Chiswick, Croydon, and more