Hi, I'm Mark — your
local heating engineer
in Surrey
21+ years' experience installing, servicing and repairing boilers across Surrey. Vaillant accredited with up to 10-year warranties. Free fixed-price quotes within 24 hours.
No heating or hot water? Fault code flashing? Same or next-day repairs across Surrey — parts carried on the van.
Book a Repair Callout →Free survey, fixed written quote within 24 hours. Vaillant accredited — warranties up to 10 years. Combi installs from £2,760 inc VAT.
Book a Free Survey →Annual boiler service £108 · Landlord CP12 £108 · Both together £168 (all inc VAT). Reminders handled for you every year.
Book a Service →
Heating & hot water services
From boiler installations to emergency repairs — done right, every time.
Boiler Installation
New boiler installations from Vaillant, Worcester Bosch and more. Manufacturer warranties of up to 10 years.
Learn more →Boiler Servicing
Annual services to keep your boiler safe, efficient, and warranty-valid.
Learn more →Repairs & Breakdowns
Fast response when your heating goes down. We carry common parts for same-day fixes.
Learn more →Hot Water Cylinders
G3 qualified for unvented (Megaflo) and vented cylinder installation and servicing.
Learn more →Central Heating
Full system installations, radiator replacements and heating upgrades.
Learn more →Power Flushing
Cold spots on radiators? Sludge is the usual culprit. From £660 inc VAT — see the honest cost guide.
Learn more →Smart Controls
Hive, Nest and Tado installations. Control your heating from your phone.
Learn more →Landlord Certificates
CP12 gas safety inspections and certificates for landlords and letting agents.
Learn more →Real installations, real results
Every job gets the same care and attention. Here's some of our recent work across Surrey.
Why homeowners choose Mark
One-Man Business, Personal Service
When you call, you get Mark. When I turn up, it's Mark. No call centres, no subcontractors, no mystery about who's doing the work.
Vaillant Accredited — Up to 10-Year Warranty
As an official Vaillant installer, I can offer up to 10-year parts and labour warranties. Not many local engineers can say that.
G3 Qualified — Unvented Specialist
Not every engineer can work on unvented hot water systems. I'm fully G3 qualified for Megaflo and other pressurised cylinder work.
17 Years at British Gas
I completed my apprenticeship and spent 17 years at BG, ending as lead engineer. That training is the foundation of everything I do.
225 Verified Reviews
114 on Checkatrade, 67 on Google and 6 on TrustATrader — all 5 stars. My reputation is my business — I don't take that lightly.
Honest Pricing, No Hard Sell
I'll always give you an honest assessment and fair price. If something doesn't need replacing, I'll tell you.
Trusted across Surrey
All reviews are real and verified — from Google and Checkatrade.
A Truly Outstanding Service. We recently had a new boiler fitted by Mark and the service was absolutely first class from start to finish. The work ethic was genuinely impressive, even staying late to ensure we weren't left without hot water. The attention to detail was spot on. No shortcuts, no rushing, just proper work done with care.
I'm so glad we chose Mark to fit our new boiler as he did a fantastic job. He arrived early and worked till late, not stopping until all work was complete in less than 2 days. Having used Mark for a smaller job in the past, I chose him because I knew he was not just an expert in his field but he comes across as very trustworthy.
I put a Checkatrade job up on Sunday on my boiler which wasn't working. Within an hour Mark had contacted, given an estimate, and we had organised for him to come and look at it the next day. The boiler now works great and I couldn't be happier and would have no issues recommending Mark to anyone.
Heating services across Surrey
Based in Addlestone, covering a wide radius across north and central Surrey.