Weekend heating upgrades in Ongar
Weekend slots fill quickly, especially in winter — but we keep dedicated Saturday capacity for Ongar for people who can't take time off mid-week. Sundays we keep for genuine emergencies only. Heating upgrade work in Ongar 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 Ongar
Not a national chain — your local engineer, your local prices.
Weekend slots fill quickly, especially in winter — but we keep dedicated Saturday capacity for Ongar for people who can't take time off mid-week. Sundays we keep for genuine emergencies only. Heating upgrade work in Ongar usually means power-flushing, smart controls, TRVs or radiator replacements — we'll tell you straight which actually move the dial for your system.
Trusted for heating upgrades across Ongar
Our heating upgrades work in Ongar 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.
About Ongar
Period centre, mixed-age outskirts, and rural off-grid hamlets.
- LPG and oil boiler servicing on the rural fringe
- Conservation-area flue planning
- Listed property compliance
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 moreWhat you get when you book us
- BTU sizing calculations for radiator changes
- Rebalancing included with every flush
- Smart thermostat brand-agnostic — Hive, Nest, Tado, Honeywell, Drayton
- Sentinel X100 inhibitor used as standard
- Boiler Plus compliant installs
What to expect on a heating upgrades job in Ongar
Listen first
Cold spots? Noisy boiler? Cold rooms upstairs? We diagnose what's actually wrong before suggesting fixes.
Recommend the right upgrade
Sometimes it's a £150 magnetic filter, sometimes a £600 power flush, sometimes new radiators. We'll be straight with you.
Do the work cleanly
Floors covered, water drained properly, no mess left behind.
Show the before/after
Pressure readings, radiator temps, and inhibitor levels all logged so you can see the difference.
Common questions about heating upgrades in Ongar
Do you charge more on weekends?▾
Saturdays are charged at our standard day rate. Sunday emergency callouts carry a small uplift — we'll tell you the exact figure before you commit.
Can I book a routine service for a Saturday?▾
Yes — Saturdays are popular for services and CP12s, so book a couple of weeks ahead if you can.
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.
How much does a power flush cost?▾
Typically £450–£750 depending on system size and number of radiators. We give a fixed price after a quick survey.
Our other services for Ongar homes
Boiler installs in Ongar
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 Ongar
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 Ongar
Annual servicing keeps your boiler safe, efficient, and your manufacturer warranty valid. Full inspection, combustion analysis, and a written report.
Plumbing in Ongar
Everyday plumbing done properly — taps, toilets, leaks, washing machines, showers, outside taps and isolation valves.
Other places we work close to Ongar
At a glance
- Service
- Heating Repairs & Upgrades
- Coverage
- Ongar (CM5) 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 Ongar
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 Ongar customers find us for heating upgrades
Same engineer, same fixed pricing — different question, different answer.
Villages near Ongar we also cover
Book a weekend slot in Ongar
Free written quote, no obligation. Real engineer, fixed price, fast response.