Glow-worm Boiler Installation across London & Kent
Glow-worm Compact, Easicom3, Energy and Ultimate3 boilers fitted by our own Gas Safe engineers across South East London and North West Kent. We register every Glow-worm installation with Glow-worm through its Club Energy installer programme, and you get a fixed written quote before any work starts.
Compact or Easicom3 from £1,650 (5-year guarantee) · Ultimate3 Combi from £2,000 (10 years) · Energy7 System from £2,300 (10 years)· See all prices →
Gas Safe Registered
• Google - 4.7★
• Trustpilot - Excellent
• Worcester Bosch Installer
• Vaillant Advance Installer
• Free First annual Service & wireless thermostat free where stated on your written quote
Which Glow-worm Boiler Is Right for Your Home?
We fit Glow-worm combi, system and heat-only boilers. The right one depends on the size of your home, how many showers run at once and where the boiler needs to go.
Before we recommend a model, we check your gas supply, mains water pressure and flow rate, and work out the heat your home needs. You get the model and output in writing on your quote.
The ranges we install:
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Glow-worm Compact Combi: a small, simple combi for flats and smaller homes, with a 5-year guarantee
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Glow-worm Easicom3: combi, system and heat-only versions, ideal for straightforward like-for-like swaps, with a 5-year guarantee
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Glow-worm Energy and Energy7 System: a dependable mid-range choice for family homes, with a 10-year guarantee
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Glow-worm Ultimate3: Glow-worm's top combi and system range for higher hot water demand, with a 10-year guarantee
Two or more bathrooms in use at the same time? A system boiler with an unvented cylinder may suit you better. See system boiler & unvented cylinder installation.
Your Glow-worm Boiler Guarantee: Up to 10 Years
Power System Filter Fitted
Energy and Ultimate3 boilers are fitted with a Glow-worm Power System Filter, which is required for the 10-year guarantee. Compact and Easicom3 installs get a magnetic system filter.
Registered with Glow-worm
We register your boiler with Glow-worm through its Club Energy installer programme, so your full manufacturer guarantee is in place.
Your Guarantee Length
Glow-worm Ultimate3: 10 years.
Glow-worm Energy / Energy7: 10 years.
Glow-worm Compact and Easicom3: 5 years.
Your exact length is shown on your quote.
Keep your guarantee valid with an annual service by a Gas Safe engineer. Manufacturer terms apply.
Set Up to Glow-worm's Instructions
We commission every boiler to Glow-worm's instructions, complete the Benchmark checklist and notify Building Control through Gas Safe. Nothing is left for you to sort out.
Why Choose GX7 for Your Glow-worm Boiler Installation?
Own Team, No Subcontractors
The engineers who survey your home are the team who install it. We are Gas Safe registered (935610).
Fixed Written Quote
Your Glow-worm model, output, guarantee length and full price are in writing before any work starts.
Tidy, Planned Work
Dust sheets down, neat copper pipework, your old boiler removed, and the system cleaned and protected before handover.
What's Included in Every Glow-worm Boiler Installation
Free Home Survey
We check your gas supply, water pressure, flow rate and heat needs before recommending a Glow-worm model.
Sized to Your Home
Glow-worm model and output matched to your home, your bathrooms and how much hot water you use.
Old Boiler Removed
Your old boiler taken out and disposed of responsibly.
Controls Set Up
Thermostat and controls fitted, set up and shown to you. Exact controls are listed on your written quote.
System Clean & Inhibitor
Your system cleaned and protected with inhibitor to BS 7593. We only power flush when it’s needed.
System Filter & Scale Reducer
A Glow-worm Power System Filter on Energy and Ultimate3 (a magnetic filter on Compact and Easicom3), plus a scale reducer on the cold mains.
Commissioning & Notification
Radiators balanced, Benchmark checklist completed and Building Regulations notified through Gas Safe.
Guarantee Registered
We register your boiler with Glow-worm, so your guarantee is in place.
Glow-worm Compact or Easicom3 fitted from £1,650 with a 5-year guarantee, or Ultimate3 from £2,000 with a 10-year guarantee. Your fixed written quote shows the exact model, controls, guarantee and price. See all prices →
How Your Glow-worm Boiler Installation Works
1
Free Survey
We look at your gas supply, water pressure, flow rate, radiators and the best spot for the boiler and flue.
2
Fixed Written Quote
Your recommended Ideal model, output, guarantee length and price in writing, with no hidden extras.
3
Installation
Usually 1 day for a like-for-like combi swap, 2–3 days for system boilers or conversions. Any time without heating or hot water is agreed with you first.
4
Commissioning & Handover
Benchmark completed, Building Regulations notified, your boiler registered with Glow-worm, and your controls explained.
5
Aftercare
An annual service keeps your Glow-worm guarantee valid. We'll remind you when it's due.
★★★★★
I'm writing to express my sincere appreciation for Mr. Singh's exceptional work on my new boiler installation. He was incredibly helpful, offering various options and clearly explaining the associated costs.
His work was not only fast but also remarkably clean and tidy, with everything completed to a high standard. I am thoroughly impressed with the amazing job he did.
I would highly recommend him without hesitation for any gas related works.
A Makarov - Google review
What Our Customers Say
★★★★★
I recently used Harmeen for a boiler installation and couldn't be happier and more satisfied with the experience. Everything was handled professionally and communicated clearly. Harmeen arrived exactly at the scheduled time and completed the installation efficiently and neatly.
Also, the first service after installation is free!
Would highly recommend them and they genuinely care about doing a good job.
Ashutosh - Trustpilot review
★★★★★
Harmeen and his team have done an outstanding job relocating my boiler. They were honest, reliable, and demonstrated exceptional professionalism throughout. Their thoroughness, attention to detail, and friendliness made the entire process seamless. I cannot recommend them highly enough and will certainly be using their services again. Thank you, team, for a job well done!
M. F. - Google review
Glow-worm Boiler Installation FAQs
Ready for Your New Glow-worm Boiler?
Book a free survey with our own Gas Safe engineers and get a fixed written quote for your Glow-worm boiler.
Gas Safe Registered
Our Own Gas Engineers
Clear Written Quotations
We install Glow-worm boilers across Grove Park, Lee, Eltham, Blackheath, Bromley, Chislehurst, Elmstead, Bickley, Petts Wood, Orpington, Chelsfield, Keston, Hayes, Beckenham, Sidcup, Sevenoaks, Otford and Westerham, SE London & North Kent. Prefer another brand? See boiler installation.
Book Your Free Glow-worm Boiler Survey
Tell us what boiler you have now and how many bathrooms you have. Photos of your boiler, flue and pipework help us give you an accurate quote.
Get a straightforward quotation from our Gas Safe Registered heating engineers.