24-hour boiler repairs in Chelmsford
We're not a true 24/7 chain — we're a small local team — but we pick up early, stay late, and respond fast when Chelmsford customers genuinely need us. For overnight emergencies we'll triage by phone and get out at first light. Most Chelmsford repair callouts we diagnose and fix on the first visit — common parts (PRVs, diverters, pumps, PCBs) live on the van.
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 Chelmsford
Not a national chain — your local engineer, your local prices.
We're not a true 24/7 chain — we're a small local team — but we pick up early, stay late, and respond fast when Chelmsford customers genuinely need us. For overnight emergencies we'll triage by phone and get out at first light. Most Chelmsford repair callouts we diagnose and fix on the first visit — common parts (PRVs, diverters, pumps, PCBs) live on the van.
Working with us on a boiler repairs job in Chelmsford
We pick up
Real person, not an answering service. We give you an honest arrival window.
We diagnose properly
Combustion analyser, multimeter, pressure gauges — proper diagnostic kit, not guesswork.
You get a price
Written, fixed, agreed before we proceed. Walk away free if you'd rather.
We fix it & guarantee the work
12-month guarantee on the repair. If the same fault comes back, we come back.
About Chelmsford
Full mix from Victorian to modern; heavy modern estate development on the outskirts.
- Hard-water scale management
- Modern estate combi servicing
Chelmsford homeowners trust us for boiler repairs — here's why
Our boiler repairs work in Chelmsford 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
No Hot Water Repair
Diverter valves, diaphragms, PCBs — the common combi hot water faults.
Learn moreNo Heating Repair
Pump faults, airlocks, frozen condensates — getting heat back on quickly.
Learn moreLeaking Boiler Repair
Pressure valves, heat exchangers, pump seals — sealing leaks safely.
Learn moreBoiler Fault Code Diagnosis
F1, F22, EA, A01 — translating fault codes into real fixes.
Learn moreQuick answers on boiler repairs in Chelmsford
Are you open right now?▾
We answer the phone from early morning until late evening on most days. Even outside hours, leave a message and we usually call back within a couple of hours for genuine emergencies.
Should I call a national 24/7 firm instead?▾
If you need someone literally on-site at 3am, the national chains have that. If you can wait a few hours, you'll usually get a better job, a fairer price and a real engineer by waiting for us.
Is it worth repairing an old boiler?▾
Honest answer: if it's over 12 years old and the repair is more than £400, replacement usually makes more financial sense. We'll lay out both options without pressure.
Do you guarantee repairs?▾
Yes — 12 months on the workmanship and any parts we supply.
What you get when you book us
- Vulnerable household priority response
- All major brands — Worcester, Vaillant, Ideal, Baxi, Glow-worm
- Honest 'is it worth fixing?' advice
- Same-day response wherever possible
- Stocked van — most repairs done first visit
Areas near Chelmsford we also cover
Our other services for Chelmsford homes
Boiler installs in Chelmsford
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 servicing in Chelmsford
Annual servicing keeps your boiler safe, efficient, and your manufacturer warranty valid. Full inspection, combustion analysis, and a written report.
Heating upgrades in Chelmsford
Cold radiators, noisy systems, sky-high bills? Power flushes, smart thermostats, radiator swaps and full system upgrades that pay for themselves.
Plumbing in Chelmsford
Everyday plumbing done properly — taps, toilets, leaks, washing machines, showers, outside taps and isolation valves.
At a glance
- Service
- Boiler Breakdowns & Repairs
- Coverage
- Chelmsford (CM1, CM2, CM3) 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 Chelmsford
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 |
|---|---|
Diagnostic call-out first hour on-site, transparent before any parts | from £85 |
Common parts (PCB, fan, pump) fitted same-visit where possible | £140–£380 |
No-heat / no-hot-water emergency same-day priority slot | from £120 |
Quote over the phone send a photo of the fault code | free |
Prices include VAT. Parts quoted separately and shown on your written quote.
Other ways Chelmsford customers find us for boiler repairs
Same engineer, same fixed pricing — different question, different answer.
Round-the-clock cover for Chelmsford
Free written quote, no obligation. Real engineer, fixed price, fast response.