Capacity and compliance for any system
The plant room is the powerhouse of your operations, and it demands specialist attention. At Happy Heat, we are committed to being your reliable, long-term heating partner, ready for everything from urgent call-outs to planned, continuous plant room servicing and critical boiler work.
As a family-run business, we bring a consistent, reliable presence that builds trust and good rapport with your site management team, ensuring smooth communication and efficient workflow during every visit.
Your ultimate safety and security blanket
You need a partner capable of handling any infrastructure. We hold Gas Safe Registration to both commercial and industrial standards, confirming we have the advanced capacity and expertise to meticulously work with pipework and systems in any state. This is whether they are modern, complex installations or aging systems in need of expert refurbishment.
Our engineers are fully DBS Enhanced checked, providing you with absolute assurance regarding the trustworthiness of when we manage your critical infrastructure.
Our accreditations should act as your safety blanket, confirming the highest standards of operation. We are accredited and independently audited through SSIP, ensuring our work consistently meets the highest recognised safety and compliance standards in the industry. For financial security, we carry £5m in Public Liability Insurance. This robust cover ensures that our partnership provides you with the highest level of protection and professionalism for the long haul.
Why businesses trust Happy Heat!
What you get if we become your commercial heating partners:
Gas Safe Registered
We are registered to work on both commercial and industrial premises.
25 years of experience
As a family business we have over 25 years of combined industry experience.
Fully insured for £5m
We are fully insured for up to £5,000,000 in public liability.
Safe Contractor Accredited
We are SSIP accredited, meaning we meet the highest recognised safety standards for contractors.
DBS Enhanced checked
Our engineers are Enhanced DBS checked and fully vetted, giving you peace of mind when we work at your home or workplace.
100% Positive feedback
We take pride in our positive reputation, proven by our 100% customer satisfaction rating on Google reviews.
You really are in safe hands with us!
Picking the right engineers can be a little overwhelming. It can take a lot of trust to let anyone into your private space. This is why we (and over 100 happy customers on Google) think we are the mutts nuts!
24/7 emergency call outs
Fully registered Gas Safe engineers
10 year warranty on new Vaillant boilers
The latest smart technology
100% positive feedback on Google
Our coverage
We cover most of London, Hertfordshire and Middlesex. Including: Radlett, Abbots Langley, St Albans, Northwood, Rickmansworth and Bushey.
It starts with a chat
Give us a ring and we'll quickly ask a few questions to diagnose the problem. If it's something simple, like low pressure, we'll help you fix it right there on the phone!
We'll book you in
If the phone fix doesn't cut it, don't fret! We'll schedule a visit to track down the gremlin living in the boiler to get that heat flowing again!
10-year warranty with all new Vaillant boiler installations
Don't just take our word for it!
We pride ourselves in our reviews and 100% customer satisfaction
Got a question about one of our awesome services?
We know choosing a heating expert can be a faff, so we've gathered the most common questions from our Hertfordshire neighbours right here. We believe in honesty and no-nonsense answers.
Get in touch with us
Get a free quote, email us if you have a question or call us on 0800 246 5457
Email us a question
Want to reach out? Fantastic! Email us and we will get respond as soon as we can. The more information you provide the better and quicker we can get back to you!
Get your free quote
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Got an emergency?
If the doo-doo has his the fan and you have no heating or hot water give us a call. We can't guarantee it but we'll try and visit you out of hours where we can.
Need a fix fast? WhatsApp us!
Areas we cover
We cover most of London, Hertfordshire and Middlesex. Including: Radlett, Abbots Langley, St Albans, Northwood, Harrow, Uxbridge, Rickmansworth, Chorleywood, Watford and Bushey. We may travel a little bit further, just give us a call!
We love to keep ourselves busy
Check out some of our latest projects on the gram!
©2026 Happy Heat All rights reserved.
0800 246 5457
Registered: 269 Park Avenue, Bushey, Hertfordshire, WD23 2DR, United Kingdom. If you have any concerns about our use of your personal information, you can make a complaint to us by writing us at 269 Park Avenue, Bushey Hertfordshire WD23 2DR, calling us on 0800 246 5457 or by sending an email to hello@happyheat.co.uk. You can also complain to the ICO if you are unhappy with how we have used your data. The ICO’s address: Information Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow, Cheshire, SK9 5AF. Helpline number: 0303 123 1113. ICO website: https://www.ico.org.uk.