Glow-worm boiler installs in Great Dunmow
Glow-worm boilers fitted, serviced and repaired across Great Dunmow. Glow-worm is part of the Vaillant group — strong shared parts availability and a solid budget option for landlord and rental installs. For full installs in Great Dunmow we'll size the boiler against your real demand, not just like-for-like swap whatever's on the wall.
You're not getting a call centre — you're getting Grant.
The same engineer quotes the job, does the work, and answers the phone afterwards if anything's not right.
Gas Safe Registered
Every gas job legally signed off
18+ years on the tools
Grant has been fixing boilers in Harlow since before smart thermostats existed.
Real human on the phone
Most calls answered the same day, often within the hour.
Locally based in Great Dunmow
Not a national chain — your local engineer, your local prices.
Glow-worm boilers fitted, serviced and repaired across Great Dunmow. Glow-worm is part of the Vaillant group — strong shared parts availability and a solid budget option for landlord and rental installs. For full installs in Great Dunmow we'll size the boiler against your real demand, not just like-for-like swap whatever's on the wall.
What to expect on a boiler installs job in Great Dunmow
Free home survey
We come out, look at your existing system, mains pressure and gas supply, and recommend the right boiler for your property — no pressure, no commission-driven upsells.
Written fixed quote
You get a clear written quote covering the boiler, parts, labour and warranty. No surprise add-ons mid-job.
Installation day
Most straight swaps are done in a single day. We protect floors, work tidily, and leave the area as clean as we found it.
Commissioning & handover
Boiler is benchmarked, registered for warranty in your name, and we walk you through the controls before we leave.
About Great Dunmow
Period centre, rural hamlets, and modern family housing on the periphery.
- Listed property heating compliance
- LPG and oil servicing
- Modern combi installs
Great Dunmow homeowners trust us for boiler installs — here's why
Our boiler installs work in Great Dunmow is built around three things: doing it properly, charging fairly, and being there afterwards if you need us.
That last bit matters — a lot of installers vanish the moment the invoice clears. We don't.
If something plays up in the first year, we come back and sort it. No quibbles, no callout fee.
What's included
Combi Boiler Installation
Single-unit installs for most 1–3 bathroom homes — no tank needed.
Learn moreSystem Boiler Installation
For larger homes with multiple bathrooms and high hot water demand.
Learn moreRegular (Heat-Only) Boiler Replacement
Like-for-like swaps for older conventional systems with tank and cylinder.
Learn moreBack Boiler Replacement
Removing fireplace back boilers and replacing with modern combi or system units.
Learn moreQuick answers on boiler installs in Great Dunmow
Are Glow-worm and Vaillant the same?▾
Same parent group, often shared componentry, but Glow-worm sits at a lower price point with shorter warranties. Good value for rental properties.
Which boiler brand do you recommend?▾
Worcester Bosch and Vaillant for long warranties and parts availability; Ideal Logic Max for budget-conscious installs. We'll explain trade-offs honestly.
How long does a boiler install take?▾
A straight combi swap is usually one day. A boiler relocation, conversion, or full system change is typically 1–3 days.
What you get when you book us
- Fixed written quotes — no surprise extras
- Old boiler removed and disposed of properly
- Boiler registered for warranty on the day
- Gas Safe registered (reg. number on every quote)
- Up to 12-year manufacturer warranties
Areas near Great Dunmow we also cover
Our other services for Great Dunmow homes
Boiler repairs in Great Dunmow
No heating or hot water? We respond fast — usually same day — diagnose properly, and give you a fixed price before any work starts.
Boiler servicing in Great Dunmow
Annual servicing keeps your boiler safe, efficient, and your manufacturer warranty valid. Full inspection, combustion analysis, and a written report.
Heating upgrades in Great Dunmow
Cold radiators, noisy systems, sky-high bills? Power flushes, smart thermostats, radiator swaps and full system upgrades that pay for themselves.
Plumbing in Great Dunmow
Everyday plumbing done properly — taps, toilets, leaks, washing machines, showers, outside taps and isolation valves.
At a glance
- Service
- New Boiler Installations
- Coverage
- Great Dunmow (CM6) and surrounding areas
- Response time
- Usually within 24–48 hours
- Credentials
- Gas Safe registered, fully insured, 12-month workmanship guarantee
- Pricing
- Fixed written quotes, no surprise extras
Roughly what you'll pay in Great Dunmow
These are honest starting prices for jobs we do every week. Final quote depends on your property — we'll always confirm in writing before any work starts. No surprise add-ons.
| Job | Price |
|---|---|
Combi-to-combi swap (like-for-like) incl. magnetic filter, system flush, 2-yr labour warranty | from £1,950 |
Conventional → combi conversion tank removal, full pipework reconfiguration | from £2,800 |
System boiler with new cylinder for 3+ bedroom / 2-bathroom homes | from £3,400 |
Free home survey & fixed quote no commission-driven upsells | £0 |
Prices include VAT. Parts quoted separately and shown on your written quote.
Other ways Great Dunmow customers find us for boiler installs
Same engineer, same fixed pricing — different question, different answer.
Villages near Great Dunmow we also cover
Glow-worm cover for Great Dunmow
Free written quote, no obligation. Real engineer, fixed price, fast response.