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!
And that's me, Lauren!
HappyHeat Director and Qualified Gas Engineer
For us, it wasn't just about pipes and heat, it's about trust! As a local, family-run gas and heating business, we genuinely believe in being personable. We skip the corporate jargon and treat every single customer like our own family.
Because we want you to feel totally secure inviting us into your home and business. When you hire HappyHeat, you’re not just getting expert engineering; you’re getting honesty, transparent pricing, and a husband and wife tag team committed to keeping your family cosy and snug.
We’re Vaillant Advance Accredited Installers. That means we've had specialist training directly from the people who make the boilers, so we’re genuine experts at installation.
This means we can offer you an awesome extended warranty when you choose a new Vaillant boiler.
Our values and customer promise
Our values simply echo how we treat our own, guaranteeing clear, no-nonsense pricing, fast support, and proper expertise that keeps your home running safely and efficiently, no matter what the issue is.
Affordable rates for everyone
Responding to customers promptly
Always making our appointments
Calling ahead with a time slot
Customer convenient visits
We pride ourselves on our 100% customer satisfaction, but if something isn't quite right, don't bottle it up! We take every bit of feedback seriously and commit to finding a solution. All the information you need is on our complaints page.
We're Safe Contractor Approved, you can relax knowing all our work is certified and fully compliant with the latest health and safety rules.
We are also fully insured and Gas Safe Registered. You can be 100% assured that each job is handled legally and safely by certified experts.
Officially verified and awesome!
We understand that securing a reliable tradesperson can be a headache. That’s why we’ve partnered with Verified. They are dedicated to simplifying your choice. They handle the rigorous background checks, confirming that we are fully qualified, comprehensively insured, and consistently well-reviewed.
This partnership ensures you receive the assurance of a vetted, knowledgeable professional company, committed to offering exceptional expertise and reliable advice for your home or business.
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
By completing our contact form you are agreeing to allow us to contact you via the details that you share. We will not share your details with any third parties. For more information about how we use your data see our Privacy policy.
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.