Gas Safe Heating Engineer
in Wokingham — Stuart Mundy
Founder of Thermotec · Gas Safe 599015 · G3 Qualified · 20+ Years
“When you call Thermotec, you’re not getting a call centre or a subcontractor. You’re getting me — Stuart Mundy. I diagnose it, I quote it, I fix it. Every time.”
experience
reviews
fix rate
inc. diagnosis
130+ five-star Google reviews from homeowners across Wokingham, Earley, Woodley and RG40
Why Stuart started Thermotec — and what makes it different
Stuart Mundy started Thermotec after 20 years watching the same problems play out across Berkshire. Homeowners getting vague time slots, inflated bills, and repairs carried out by whoever happened to be free that day. Engineers who turned up, couldn’t diagnose the fault properly, swapped parts on gut feeling and came back three times.
Thermotec was built to do the opposite. Every job gets a proper diagnosis before any parts are touched. Every repair gets a fixed price agreed upfront. Every visit gets an exact arrival time — not a six-hour window. And every job is done by Stuart, personally, from start to finish.
Why the personal approach matters
When you call a larger plumbing company, you don’t know who will turn up. It might be a recently qualified engineer. It might be a subcontractor the company has never worked with before. With Thermotec, Stuart answers the phone and Stuart turns up. He has 20+ years of experience diagnosing and fixing boilers across Wokingham and RG40. He knows the local housing stock, the Vaillant and Worcester systems fitted to most local properties, and the specific effects of the hard chalk water in this area on boilers and pipework.
Wokingham’s local Gas Safe engineer
Stuart is based in Arborfield — 10 minutes from Wokingham town centre. He covers the full RG40 and RG41 area, Earley, Woodley, Finchampstead, Barkham, Shinfield, Crowthorne and into Reading. Not a regional plumbing company with a Wokingham phone number — an engineer who lives and works in the area and knows it intimately.
“My goal isn’t just to fix your boiler today. It’s to make sure your home stays warm and your system runs efficiently for the next 10 years.”
— Stuart Mundy, Founder, Thermotec Plumbing and Heating
Three things that are non-negotiable on every Thermotec job
Diagnose first — always
Stuart uses digital diagnostic tools to find the root cause before recommending any repair. No parts-swapping on gut feeling. No guesswork. The right fix identified, quoted, and agreed before any work begins. This is why the first-time fix rate is 90%.
Safety without compromise
Gas Safe registered (599015). On every single visit, Stuart performs a full carbon monoxide check and flue integrity test — not just when the job calls for it. If a safety issue is found on a boiler service, it’s raised immediately and clearly, not buried in small print.
Local knowledge that matters
Wokingham and RG40 has some of the hardest water in England — 330–380 mg/L. Stuart has 20 years of experience seeing what that does to local boilers, heat exchangers, radiators and unvented cylinders. Every diagnosis accounts for the local water conditions, not just the fault code on the display.
Stuart’s full credentials
Every qualification listed is independently verifiable. Gas Safe registration can be checked at gassaferegister.co.uk using number 599015.
130+ five-star reviews from across Wokingham & RG40
Real reviews from real customers — on Google Maps, not a managed platform.
“Thermotec handled our full boiler conversion to a high-efficiency combi perfectly. If you’re looking for a boiler replacement in Wokingham, Stuart is the expert you need. Fixed price, arrived on time, exactly as quoted.”
“Stuart performed a full 5-year manufacturer strip-down service. Meticulous, thorough, and explained every step. Truly the gold standard for heating engineers in Wokingham. Wouldn’t use anyone else.”
“Professional, reliable and honest. Stuart diagnosed the problem immediately and explained clearly what needed doing and why. Everything was exactly as quoted. I wouldn’t hesitate to recommend Thermotec to anyone in Wokingham.”
Ready to work with a plumber
you can actually trust?
11 Hill Road, Arborfield, Berkshire RG2 9LP · info@thermo-tec.co.uk