Trusted Gas Engineers Since 2006
Advance Gas Heating — also known as Gill's — is a family-run gas engineering company serving London and Harrow. We've built our reputation on honest advice, quality installations, and engineers who genuinely care about your home.
17+
Years Experience
500+
Happy Customers
100%
Gas Safe Registered
24/7
Emergency Support
Built on Trust, Driven by Expertise
Advance Gas Heating was founded in 2006 by Gill, a Gas Safe registered engineer who wanted to bring a more personal, honest approach to domestic heating services in London and Harrow.
What started as a one-man operation quickly grew through word of mouth. Homeowners and landlords appreciated our straightforward pricing, tidy workmanship, and the fact that we always explained what we were doing and why.
Today, our team of fully qualified engineers handles everything from new boiler installations and Megaflow systems to underfloor heating and emergency callouts — all backed by our Gas Safe registration and Checkatrade accreditation.
We're proud to still be a local, family-run business. When you call us, you speak to an engineer — not a call centre.
Our Values
Transparency
No hidden costs. We provide clear, upfront quotes before any work begins.
Expertise
All engineers are Gas Safe registered and trained on the latest heating technologies.
Reliability
We show up on time, complete work to schedule, and stand behind everything we install.
Affordability
Competitive rates without compromising on quality — because great heating should be accessible.
Company History
Founded in Harrow
Advance Gas Heating was established by Gill, a Gas Safe registered engineer with a vision to deliver honest, expert heating services to London homeowners.
Commercial Expansion
Expanded services to include commercial properties across Greater London, taking on larger central heating and boiler installation contracts.
Underfloor Heating Specialists
Became one of the leading underfloor heating installers in the region, completing over 200 residential and commercial projects.
Checkatrade Accreditation
Joined Checkatrade as a vetted and approved contractor, reflecting our commitment to quality workmanship and customer satisfaction.
17 Years & Growing
Today we serve hundreds of satisfied customers across London and Harrow, maintaining our reputation for reliability, transparency, and expert craftsmanship.
Meet the Team
Gill
Founder & Lead Engineer
Gas Safe registered engineer with over 17 years of hands-on experience in domestic and commercial heating systems. Gill founded Advance Gas Heating with a commitment to honest pricing and quality workmanship.
Raj Patel
Senior Heating Engineer
Specialist in boiler installations and central heating upgrades. Raj has completed hundreds of Worcester Bosch and Vaillant installations across London.
James Carter
Underfloor Heating Specialist
Expert in wet and electric underfloor heating systems. James leads all UFH projects from design through to commissioning, ensuring optimal performance and energy efficiency.
Preet Singh
Commercial Projects Lead
Manages our commercial portfolio including large-scale central heating installations, Megaflow systems, and landlord gas safety certificates across Greater London.
Ready to work with us?
Get in touch for a free, no-obligation quote.