I have found Sam, Cody, Zoe and their Team, amazing to deal with. They have also done an excellent and prompt job of installing a New Vaillant Boiler and 8 New Radiators in my home in a day and a half, with no mess left at all. I would highly recommend them for Gas Engineering and Other Plumbing work!
Our Services
Boiler Repairs
Fast fault-finding and reliable boiler repairs across Bristol. Emergency call-outs to restore heating and hot water quickly and safely.

About This Service
Boiler Repairs You Can Trust
All repairs are carried out by Gas Safe registered engineers and protected by manufacturer-backed warranties or our own workmanship guarantee, so safety and compliance are assured. We specialise in rapid fault-finding and same-day emergency call-outs across Bristol to restore heating and hot water. Diagnostics, clear quotes and tidy repairs, we leave systems running.

Our Process
How It Works
Call or email and our Gas Safe engineer will triage the fault, advise immediate steps (safety isolation, frost protection) and arrange the fastest possible attendance.
Initial Triage
Call or email and our Gas Safe engineer will triage the fault, advise immediate steps (safety isolation, frost protection) and arrange the fastest possible attendance.
Onâsite Diagnostics
We conduct a systematic fault-finding process â error codes, pressure checks, gas supply, ignition and pump testing â then explain the fault and repair options.
Repair, Test & Certify
We complete repairs using manufacturer-approved parts where possible, run safety and performance tests, and provide documentation and recommendations for future care.
Benefits
Why Choose Us For Boiler Repairs?
Qualified, Accredited Engineers
All work is carried out by Gas Safe registered engineers and the team hold Vaillant and Viessmann accreditations, protecting warranties and standards.
Speed & Emergency Cover
Rapid fault-finding and emergency call-outs minimise cold homes and lost hot water, with same-day attendance where possible across Bristol and surrounding areas.
Clear Communication & Aftercare
Upfront diagnostics, written quotes and tidy workmanship, plus follow-up checks and emergency support, so you know what was fixed and why.
What we fix : ignition faults, no hot water, low pressure, pump failure, frozen condensate, leaks, diverter valve and PCB faults are all diagnosed on-site. Our engineers use targeted tests rather than guesswork, so the repair is accurate and the fault is less likely to recur. Where manufacturer parts are required we fit approved components to maintain warranties.
When repair is the right call : repairs are the efficient option for component failures and minor faults. If a boiler is repeatedly breaking down, inefficient or life-expired we’ll explain replacement options and link into our installation service. Every repair comes with clear safety checks, paperwork and recommendations for servicing to keep the system reliable.
Need Fast Boiler Repairs?
Request Repair Give us a call
Call our Gas Safe team on 07775 504 887 or email info@sntph.co.uk for same-day call-outs, clear diagnostics and a written quote.
Reviews
What our clients say about our work
Sam and his team have transformed our bathroom! From start to finish they have been amazing . From my small vision to our bathroom being fully renovated and transformed they have been extremely professional and courteous. We absolutely love it and we would recommend them for any work you need. Truly 5 stars !
Reliable, competent, transparent and all round good people!
Sam's team have just installed our new boiler. Great product knowledge and less than a week from quote to installation. They worked quickly and cleanly. Couldn't be happier!
Frequently Asked Questions
How quickly can you attend a boiler breakdown?
We aim to respond rapidly and offer same-day emergency call-outs across Bristol where availability allows. Response times depend on current workloads and location; call us straightaway so we can triage and get an engineer to you as soon as possible.
Are your engineers Gas Safe registered?
Yes. All repair work is carried out by Gas Safe registered engineers. That means work is carried out safely, with correct gas procedures and regulatory compliance for your property and insurance purposes.
Will a repair affect my manufacturer warranty?
If parts are fitted or work carried out by non-accredited engineers it can affect some warranties. SNT Plumbing & Heating hold manufacturer accreditations with Viessmann, Worcester and Vaillant and will advise on warranty implications before proceeding.
Can you fix any boiler brand?
We repair the common domestic brands and provide specialist support for manufacturers we’re accredited with, but we’ll always diagnose first and explain whether a repair, part replacement or full exchange is the safest, most cost-effective option.
Do you repair heat pumps as well as boilers?
We are heat pump certified through HPIN, but heat pump maintenance and complex repairs follow a different process to gas boilers. If your issue is with an air source heat pump we’ll advise and, where appropriate, carry out or arrange the correct specialist work.




Ready to get your heating sorted?
Please contact our friendly team today to arrange a free, no-obligation quote.