— Green Flame Plumbing and Heating
Accredited Gas Safe & OFTEC Heating Engineers
Boiler installation, servicing and repairs across Rhondda Cynon Taf and South Wales. Friendly, technically skilled engineers offering clear quotes, manufacturer-backed work and an instant online estimate tool.
5.0/5Average Review Score (300 reviews)
300 Five-Star Reviews
“I cant recommend enough, very fast service, very professional, reasonably priced too.”— Google
— Services
Our Services
Expert heating services across Rhondda Cynon Taf and South Wales
01
Boiler Installation
Supply and fit of combi, system and regular boilers across South Wales. Gas Safe and OFTEC-registered engineers, manufacturer accreditations and free quotes — plus an instant online estimate tool to get a quick idea before booking.
02
Boiler Repair
Emergency and planned boiler repairs for all makes and models. Fast fault diagnosis, on‑the‑van parts and accredited engineers to get your heating back on quickly.
03
Boiler Servicing
Annual safety and performance servicing by Gas Safe engineers to keep boilers efficient, protect warranties and reduce the risk of breakdowns.
04
Boiler Maintenance
Prevent breakdowns and keep your heating efficient with scheduled maintenance from Gas Safe & OFTEC‑registered engineers. Early wear detection, efficiency checks and small adjustments to extend boiler life and avoid emergency call‑outs.
05
Central Heating Installation
Full central heating installs and upgrades — radiators, valves, pipework and commissioning — delivered by Gas Safe & OFTEC‑registered engineers across Porth and South Wales.
06
Powerflushing
Clear sludge, restore even radiator heat and cut future breakdown risk with a professional powerflush by Gas Safe and OFTEC-registered engineers in Porth and South Wales.
07
Oil Boiler Installation
OFTEC-registered oil boiler installation and commissioning for homes off the gas grid. Clear advice, accredited engineers and free no-obligation quotes across South Wales.
08
Unvented Cylinder Installations
Fit a Megaflo‑style unvented cylinder for mains‑pressure hot water to multiple bathrooms and showers. Accredited installers, Gas Safe & OFTEC registered engineers and clear, no‑nonsense quotes across Porth and nearby towns.
09
Underfloor Heating
Professional underfloor heating installation across South Wales, including Bridgend, Cardiff and surrounding areas. Efficient, low-temperature heating systems designed for comfort, performance and energy savings.
10
Smart Thermostat Installation
Supply and professional fitting of Hive, Nest and compatible smart controls with full setup and a hands‑on user demo. Reduce running costs and take remote control of your heating across Porth and South Wales.
Get a Fast Boiler Installation Estimate
Planning a new boiler installation? Answer a few simple questions and receive an estimated cost tailored to your project requirements.
— ABOUT US
Local. Accredited. Dependable.
Based in Porth, Green Flame Plumbing and Heating are Gas Safe and OFTEC registered engineers serving homes across Bridgend, Cardiff and the Valleys. Customers choose us for transparent quotes, punctual, polite engineers and manufacturer accreditations that unlock extended warranties on qualifying installations.
- Gas Safe & OFTEC registered for safe gas and oil work
- Manufacturer accreditations: Ideal MAX, Baxi, Nest Pro, Uponor, Megaflo
- Free, no‑obligation quotes plus an instant online estimate tool
- Covering Rhondda Cynon Taf and South Wales
— WHY CHOOSE US
Why Choose Us
Safety & Compliance
All gas work is carried out by Gas Safe registered engineers and oil work by OFTEC registered specialists — safety records and certificates supplied on completion.
Manufacturer Accreditations
Ideal MAX, Baxi, Nest Pro, Uponor and Megaflo accreditations let us fit manufacturer‑approved kit and offer extended warranties on qualifying installations.
Fast Local Response
Two bases in South Wales means quicker appointments and faster emergency call‑outs across Rhondda Cynon Taf and South Wales.
Clear Pricing & Instant Estimates
No jargon, no surprise extras — free site quotes and an online estimate tool give a quick, transparent steer before you book a visit.
Friendly, Punctual Engineers
Customer reviews highlight polite, tidy engineers who explain the work and leave properties clean — polite service without the waffle.
Technical Expertise
Experienced engineers specialising in boiler installation, servicing, powerflushing, unvented cylinders and smart thermostat set‑ups — work completed to manufacturer guidance.
— REVIEWS
What Our Customers Say
“I cant recommend enough, very fast service, very professional, reasonably priced too.”
— Helen Cornish
Google2026-06-16“James was amazing, sorted out the issue quickly and came promptly
Would recommend”
— David Pinkney-Price
Google2026-06-16“James has been servicing our boiler for the last 4 years now and always does a great job very clean and tidy. He has also fitted new radiators around the house and fitted a new magnetic filter to the heating system on this years service. Great work as always would definitely recommend.”
— Rikki lee Ball
Google2026-06-16“Boiler stopped working, made a call to Green Flame Plumbing. He was able to attend quickly, diagnose the fault, collect parts and repair the boiler within a few hours. He was very polite respected our property and left with no mess. Very pleased with the service.”
— Richard Barnett
Google2026-06-16“Couldn’t be happier with the service we received. I was in a complete panic about a faulty boiler, but James quickly put me at ease, explained everything clearly, and offered honest advice without any upselling. Reliable, professional, and genuinely helpful — I wouldn’t hesitate to contact him again.”
— J T
Google2026-06-16“Great service. Our 20 year old boiler broke and we needed a replacement urgently. James responded to me reaching out for a quote very quickly, assessed the job and gave us a number of options without pushing towards the more expensive one. Good quotes for the work (which ended up being a big job) and the new boiler was installed within a week of the old one breaking.
Highly recommended!!”
— Gareth Jones
Google2026-06-16— OUR ACCREDITATIONS
Ready for a warmer, safer home?
Get a free, no‑obligation quote or try our instant estimate tool. Call 07971 651 849 or 07429 250 903, or email info@greenflameplumbingandheating.co.uk to arrange a visit.
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