Heating Engineer Callout
Gas Safe heating engineer for any heating fault. On site within 2 hours. Phone answered within 20 minutes. No call-out fee — diagnosis free, fixed price quoted before work begins.
What a heating engineer fixes
Most heating problems fall into a handful of categories — boiler faults, radiator issues, thermostat or programmer failures, zone valve problems, pump wear, or system pressure loss. A Gas Safe heating engineer diagnoses which and fixes it properly.
Looking for a specialist? We have dedicated pages for boiler repair, boiler service, central heating systems, and emergency boiler repair.
Common heating engineer jobs
- Boiler fault diagnosis + repair
- Radiator repair / replacement
- Thermostat + programmer upgrades
- Zone valve failure
- Circulation pump replacement
- System repressurisation + leak repair
- Power flushing (sludge removal)
- Annual Gas Safe boiler service
Heating engineer pricing — 2026
Standard call-out and travel included. Prices exclusive of VAT. Most jobs quoted as a fixed price after free on-site diagnosis.
Labour rate
£89 to £168.50
+VAT per hour
Call-out fee
FREE
Travel always included
All prices exclusive of VAT. Ranges reflect typical jobs. Final price quoted before any work begins.
How we work
Five steps. No surprises. No pressure.
Call or book
Phone answered within 20 minutes. Free quote form.
Engineer arrives
Gas Safe engineer on site within 2 hours.
Free diagnosis
We check, explain, and quote a fixed price.
Work done
Most jobs completed first visit — common parts on the van.
Guaranteed
1-year parts guarantee on everything we fit.
Heating engineer FAQs
What does a heating engineer do?
A heating engineer diagnoses and repairs faults in your heating system — boiler issues, radiator problems, thermostat failures, zone valve faults, pump replacements, pressure loss, noisy operation, and cold spots. Gas Safe heating engineers are qualified to work on gas components; OFTEC engineers on oil.
How much does a heating engineer cost?
Our standard labour rate is £89 to £168.50 per hour +VAT — varies by time and location. Most callouts are quoted as a fixed job price after diagnosis. No call-out fee on top.
How quickly can you attend?
On site within 2 hours. Phone answered within 20 minutes. We cover Watford, Hertfordshire, North London and Middlesex from our Watford HQ.
Is there a call-out fee?
No. Standard call-out and travel are included. Diagnosis is free — we quote the fixed repair price before any work begins.
Are you Gas Safe registered?
Yes — Gas Safe registered for gas work, OFTEC registered for oil heating. We only carry out work we are qualified for.
Do you cover central heating systems?
Yes. See our dedicated page for <a href="/central-heating-engineers">central heating engineers</a> covering full system design, power flushes, and whole-system repairs.
What heating engineer jobs do you handle?
Boiler repairs, radiator repair/replacement, thermostat and programmer upgrades, zone valve failures, circulation pump replacement, system repressurisation, leak repairs, power flushing, and annual servicing. Full list on our services page.
Could the final price be more than the quoted range?
No — the price we agree after diagnosis is the price you pay. If while working we find an unforeseen issue requiring additional parts or time, we explain it, quote it separately, and only proceed with your approval. No work exceeding the original budget is undertaken without your consent.
Heating problem? We'll diagnose it.
Engineer on site within 2 hours. Phone answered within 20 minutes. No call-out fee.