Worcester Bosch boiler installs in Great Dunmow
We're a Worcester Bosch Accredited Installer — which means up to 12-year warranties registered in your name on every Worcester boiler we fit in Great Dunmow. We service and repair Worcester units of every age, including older Greenstars and 24i Junior models. 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.
We're a Worcester Bosch Accredited Installer — which means up to 12-year warranties registered in your name on every Worcester boiler we fit in Great Dunmow. We service and repair Worcester units of every age, including older Greenstars and 24i Junior models. 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.
How we handle boiler installs in Great Dunmow
Talk through what you actually need
Sometimes a £2,200 combi is the right answer. Sometimes a system boiler with a cylinder is. We'll tell you straight.
Lock in the price
Fixed-price quote in writing. The number you agree is the number you pay.
Fit it properly
Magnetic system filter, full power-flush where needed, neat pipework. The bits other installers cut corners on.
Register the warranty
Up to 12 years with Worcester or Vaillant — we register it for you on the day.
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 moreWhat makes our boiler installs work different in Great Dunmow
Three things Great Dunmow customers tell us they value: we turn up when we say we will, we explain things in plain English, and we don't try to sell you anything you don't need.
For boiler installations specifically, that means honest advice on whether to repair, replace, or upgrade — not a default sales pitch.
Everything we do is Gas Safe registered, fully insured, and backed by a 12-month workmanship guarantee.
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
What you get when you book us
- Worcester Bosch Accredited Installer
- Boiler registered for warranty on the day
- Old boiler removed and disposed of properly
- Gas Safe registered (reg. number on every quote)
- Family-run, no commission-driven sales
Quick answers on boiler installs in Great Dunmow
Do you offer the 12-year Worcester warranty?▾
Yes — Worcester Bosch Accredited Installer status lets us register the full extended warranty in your name on the day of install, free of charge.
What about older Worcester boilers?▾
We service and repair every Worcester model going back 20+ years. Common fault codes (EA, A21, D5) we know inside out.
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.
How much does a new boiler cost fitted?▾
Most combi swaps run £2,200–£3,800 fitted depending on brand and any system upgrades. We give you a written fixed price after a free survey — no obligation.
What else we can help with in Great Dunmow
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.
Areas near Great Dunmow we also cover
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
Worcester Bosch experts for Great Dunmow
Free written quote, no obligation. Real engineer, fixed price, fast response.