London's Trusted Gas & Heating Engineers
Gas Safe registered engineers available 24/7 for boiler installations, repairs, breakdowns, and emergency call-outs across London and surrounding areas.
Call us now
07935 365 247
What We Do
Our Services
From emergency boiler repairs to full heat pump installations — we cover every aspect of gas, heating, and plumbing.
Boiler Installation
Full boiler replacement and new installation service. We supply and fit leading brands with manufacturer warranties and Gas Safe certification on every job.
Find Out MoreBoiler Repair & Servicing
Fast, reliable boiler repairs and annual servicing to keep your heating running efficiently and safely throughout the year.
Find Out More24/7 Emergency Breakdown
No heat or hot water? Our engineers are on call around the clock, every day of the year. We aim to be with you within hours.
Find Out MoreCentral Heating
Complete central heating system design, installation, and upgrades. From single radiators to full system replacements.
Find Out MoreHeat Pump Systems
Air source and ground source heat pump design and installation. Future-proof your home with low-carbon, energy-efficient heating.
Find Out MoreGeneral Plumbing
From leaking taps and burst pipes to bathroom installations and full plumbing fit-outs — no job too small.
Find Out MoreCP12 Landlord Certificates
Annual gas safety inspections and CP12 certificates for landlords. Stay legally compliant and protect your tenants.
Find Out MoreFor Landlords
Are You a Landlord?
As a landlord, you're legally required to have a valid CP12 Gas Safety Certificate for every property you let. Our Gas Safe registered engineers carry out thorough annual inspections and issue certificates promptly — keeping you compliant, your tenants safe, and your property protected.
- Annual CP12 gas safety inspections
- Certificates issued same day
- Boiler servicing and repairs
- Trusted by letting agents across London
Why Thames
Why Choose Us
Gas Safe Registered
Every engineer on our team is fully Gas Safe registered. You can verify our credentials at any time — your safety is non-negotiable.
Fast Response Times
We understand that heating and plumbing problems can't wait. We offer same-day appointments and 24/7 emergency cover across London.
London-Wide Coverage
Based in London, we cover the city and surrounding areas. Whether you're in Zone 1 or the outer boroughs, we'll get to you.
Fully Insured
We carry full public liability insurance on every job. You're protected from start to finish, with no hidden costs or surprises.
Need an engineer today?
Call us now for a fast response — or send us an enquiry and we'll get back to you promptly.
Why Choose Us
Quality. Reliability. Trust.
Every engineer on our team is Gas Safe registered, fully insured, and trained to the highest standard. We cover London and surrounding areas — available 24/7 for emergencies.
Fully Insured
Public liability cover on every job
Gas Safe Registered
Legally certified engineers
Quality Workmanship
Work guaranteed as standard
London & Surrounding Areas
Fast response across the region