No heating in Theydon Bois? Boiler repairs sorted properly
No heating coming on at all in Theydon Bois? Most cases we see are pump failures, frozen condensate (in winter), seized motorised valves, or low system pressure. We diagnose properly, give you a fixed price, and get the heat back on. Most Theydon Bois 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 Theydon Bois
Not a national chain — your local engineer, your local prices.
No heating coming on at all in Theydon Bois? Most cases we see are pump failures, frozen condensate (in winter), seized motorised valves, or low system pressure. We diagnose properly, give you a fixed price, and get the heat back on. Most Theydon Bois repair callouts we diagnose and fix on the first visit — common parts (PRVs, diverters, pumps, PCBs) live on the van.
Why we're a sensible choice for boiler repairs in Theydon Bois
Three things Theydon Bois 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 repairs 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
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 moreAbout Theydon Bois
Period village stock with modern detached infill.
- Forest-edge conservation considerations
- Older system replacements
What you get when you book us
- Honest 'is it worth fixing?' advice
- Vulnerable household priority response
- 12-month repair guarantee
- Real human on the phone, not an answering service
- Stocked van — most repairs done first visit
Our boiler repairs process, step by step
Phone diagnosis
Quick chat first — sometimes we can talk you through a reset and save you the callout.
On-site diagnosis
Fixed diagnostic fee (told to you upfront). We find the actual fault, not guess.
Fixed repair price
You get a fixed quote before any tools come out. No 'while I'm here' surprises.
Repair & test
Fixed, tested, pressure checked, and we make sure it stays fixed before we leave.
boiler repairs in Theydon Bois: questions we get a lot
Why has my heating stopped working?▾
Top causes: frozen condensate pipe in cold weather, low system pressure, a seized pump after summer dormancy, or a stuck motorised valve. Most are quick fixes once diagnosed properly.
Can I do anything before you arrive?▾
Check the boiler pressure (should be 1.0-1.5 bar cold). If it's below 0.5, top up using the filling loop. If you can hear the boiler firing but radiators stay cold, the issue is in the system, not the boiler itself.
Do you charge a callout fee?▾
We charge a clear diagnostic fee (told to you upfront before we attend). It covers proper on-site diagnosis. The repair itself is then quoted as a fixed price you agree before any work starts.
Do you guarantee repairs?▾
Yes — 12 months on the workmanship and any parts we supply.
What else we can help with in Theydon Bois
Boiler installs in Theydon Bois
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 Theydon Bois
Annual servicing keeps your boiler safe, efficient, and your manufacturer warranty valid. Full inspection, combustion analysis, and a written report.
Heating upgrades in Theydon Bois
Cold radiators, noisy systems, sky-high bills? Power flushes, smart thermostats, radiator swaps and full system upgrades that pay for themselves.
Plumbing in Theydon Bois
Everyday plumbing done properly — taps, toilets, leaks, washing machines, showers, outside taps and isolation valves.
Our coverage around Theydon Bois
At a glance
- Service
- Boiler Breakdowns & Repairs
- Coverage
- Theydon Bois (CM16) 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 Theydon Bois
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 Theydon Bois customers find us for boiler repairs
Same engineer, same fixed pricing — different question, different answer.
Get the heating back on in Theydon Bois
Free written quote, no obligation. Real engineer, fixed price, fast response.