Boiler losing pressure in Great Canfield? Heating upgrades sorted properly
If you're topping up your boiler in Great Canfield every week or two, you have a system leak — usually small and hidden. We pressure-test the system, locate the source and fix it properly so you stop refilling. Heating upgrade work in Great Canfield usually means power-flushing, smart controls, TRVs or radiator replacements — we'll tell you straight which actually move the dial for your system.
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 Canfield
Not a national chain — your local engineer, your local prices.
If you're topping up your boiler in Great Canfield every week or two, you have a system leak — usually small and hidden. We pressure-test the system, locate the source and fix it properly so you stop refilling. Heating upgrade work in Great Canfield usually means power-flushing, smart controls, TRVs or radiator replacements — we'll tell you straight which actually move the dial for your system.
Why we're a sensible choice for heating upgrades in Great Canfield
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 heating upgrades 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.
What's included
Power Flushing
Deep clean of central heating to remove sludge and restore efficiency.
Learn moreRadiator Replacement & Relocation
Swapping tired old radiators or moving them for new layouts.
Learn moreSmart Thermostat Installation
Hive, Nest, Tado, Honeywell — fitted, set up and explained.
Learn moreMagnetic System Filter Fitting
MagnaClean or Spirotech filters to protect your boiler from sludge.
Learn moreAbout Great Canfield
Tiny farming parish with mostly detached rural housing. Off-grid heating mix of LPG, oil and a few biomass installations.
Detached rural off-grid.
- Listed property heating compliance
- LPG and oil servicing
- Modern combi installs
What you get when you book us
- Sentinel X100 inhibitor used as standard
- BTU sizing calculations for radiator changes
- Rebalancing included with every flush
- MagnaCleanse and Kamco flushing equipment
- Boiler Plus compliant installs
Our heating upgrades process, step by step
Pre-flush check
Radiator survey, pump and motorised valve check, and a sludge sample where possible.
Flush
High-flow magnetic flushing unit run through the system, radiator by radiator, until water runs clear.
Inhibitor & filter
Fresh corrosion inhibitor added; magnetic filter fitted to keep the system clean going forward.
Performance check
Heating fired up, all radiators rebalanced, and the difference measured.
Common questions about heating upgrades in Great Canfield
How often should I need to top up?▾
A healthy sealed system should hold pressure for 6-12 months between top-ups. Anything more frequent points to a leak.
Could it be the expansion vessel?▾
Yes — a perished expansion vessel inside the boiler is a common cause. We test the vessel as part of diagnosis.
Will a smart thermostat actually save money?▾
Yes — typically 8–12% off heating bills if you use the scheduling and zone features properly. Hive and Nest both pay back inside two years for most households.
Do I really need a power flush?▾
If radiators have cold patches, your boiler is noisy, or you're fitting a new boiler to an older system, yes. Otherwise a chemical flush and magnetic filter is often enough.
What else we can help with in Great Canfield
Boiler installs in Great Canfield
Worcester, Vaillant, Ideal and Glow-worm boilers fitted by Gas Safe registered engineers — sized properly, fitted neatly, and backed by manufacturer warranties of up to 12 years.
Boiler repairs in Great Canfield
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 Canfield
Annual servicing keeps your boiler safe, efficient, and your manufacturer warranty valid. Full inspection, combustion analysis, and a written report.
Plumbing in Great Canfield
Everyday plumbing done properly — taps, toilets, leaks, washing machines, showers, outside taps and isolation valves.
Other places we work close to Great Canfield
At a glance
- Service
- Heating Repairs & Upgrades
- 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 Canfield
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 |
|---|---|
Single radiator swap supply & fit, like-for-like | from £180 |
Smart thermostat install (Hive/Nest/tado) wired in and configured | from £220 |
Full magnetic filter & power flush extends boiler life, lower bills | from £450 |
TRV upgrade per radiator fitted while system drained | from £45 |
Prices include VAT. Parts quoted separately and shown on your written quote.
Other ways Great Canfield customers find us for heating upgrades
Same engineer, same fixed pricing — different question, different answer.
Villages near Great Canfield we also cover
Stop the pressure drop in Great Canfield
Free written quote, no obligation. Real engineer, fixed price, fast response.