Gas Safe Engineer London
Gas Safe registered engineers for boiler work, gas safety certificates, gas appliance installation, and leak repair across all 33 London boroughs — from £95, same day, no call-out fee.
🚨 Gas Emergency: 0800 111 999
If you can smell gas — do not call us first. Call the National Gas Emergency Service (free, 24/7), open windows, and leave the property. Only contact us after the property has been declared safe.
⚖️ Gas Work Is Legally Restricted
It is illegal to carry out gas work in the UK without Gas Safe registration. This applies to anyone — homeowners, general builders, and unregistered tradespeople. Illegal gas work can result in fines, imprisonment, and voids home insurance. Always ask for a Gas Safe ID card and verify at gassaferegister.co.uk.
Gas Safe Services in London
Boiler Installation
From £1,800
All makes. Worcester Bosch, Vaillant, Viessmann. Gas Safe commissioning certificate included. Magnetic filter fitted as standard.
Boiler Service
£95–£140
Full Gas Safe inspection, burner clean, flue check, safety controls test, efficiency check. Annual recommended. Satisfies most boiler warranties.
Gas Safety Certificate (CP12)
£65–£120
Legal requirement for all London landlords annually. Issued same day. Covers all gas appliances and flues. Digital and paper copies.
Gas Leak Investigation
From £95
Gas tightness test, trace and locate the leak source. Repair quote before any work. Emergency response available.
Gas Appliance Installation
From £150
Gas hobs, gas cookers, gas fires, gas water heaters. All work certificated. Includes commissioning and safety check.
Gas Pipe Work
From £200
New gas connections, pipe extensions, meter relocation. All work to BS 6891 standard. Tightness tested and certified.
Gas Safe Engineer Prices — London 2026
| Service | Detail | Price |
|---|---|---|
| Gas Safe engineer call-out | First hour, inc. diagnosis | £95 |
| Gas Safety Certificate – 1 appliance | Landlord CP12 | £65–£95 |
| Gas Safety Certificate – 2 appliances | Landlord CP12 | £95–£120 |
| Boiler service (Gas Safe) | Full service + safety check | £95–£140 |
| Gas leak investigation + repair | Tightness test + repair | £95–£350 |
| Gas appliance installation | Hob / cooker / fire | £150–£400 |
| Gas pipe installation | New connection or extension | £200–£800 |
All gas work certificated. Fixed quote before any work. No call-out fee. 7 days, all 33 London boroughs.
Gas Safe Engineers Across London
Gas Safe FAQs
What work requires a Gas Safe registered engineer in London?
By law: installation, service, or repair of any gas appliance (boilers, fires, cookers, hobs, water heaters), any gas pipe or connection work, flue work, and issuing CP12 Gas Safety Certificates. Always verify registration at gassaferegister.co.uk. Our engineers carry Gas Safe ID cards on every job.
How do I verify a Gas Safe engineer in London?
Ask for their Gas Safe ID card (photo, registration number, categories they're qualified for). Verify at gassaferegister.co.uk. Check the card is not expired — registration renews annually. Our engineers are registered for domestic natural gas — boilers, fires, appliances, pipework, flues.
What is a Gas Safety Certificate (CP12) and who needs one in London?
A legal document proving all gas appliances and flues in a rental property have been safety-checked by a Gas Safe engineer. All London private landlords must have one issued annually. Must be provided to existing tenants within 28 days, new tenants before move-in. Non-compliance: unlimited fines and imprisonment. Cost: £65–£120.
Can I smell gas — what should I do in London?
Don't touch any switches. Open windows. Turn off gas at meter (handle 90°). Leave the property. Call 0800 111 999 (National Gas Emergency, free, 24/7). Only call us after they've declared the property safe.
How much does a Gas Safe engineer cost in London?
Call-out: £95 (first hour). CP12 single appliance: £65–£95. Boiler service: £95–£140. Gas leak investigation: from £95. Gas appliance installation: £150–£400. Gas pipe work: £200–£800. Fixed quote before any work.
What categories of gas work do your London engineers cover?
Domestic natural gas: boilers (all makes), gas fires, gas hobs and cookers, gas water heaters, flue installation and inspection, gas pipe work, CP12 certification, leak investigation. Not covered: LPG, commercial gas, industrial gas.
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Need a Gas Safe Engineer in London?
From £95 · Gas Safe registered · Same day · All 33 boroughs · No call-out fee
📞 Call 020 0000 0000