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No heat, no hot water, F-code on the display — one call to Ash Villa gets a Gas Safe engineer on-site with the parts van, a clear diagnosis in plain English and an honest answer on whether to repair or replace.
Gas Safe · 24/7 emergency line · £80 call-out inc. first hour · £120/hr thereafter
What it is
Fault-finding and repair on domestic and commercial boilers — combi, system and heat-only — across every mainstream UK manufacturer including Vaillant, Worcester, Ideal, Baxi, Glow-worm and Alpha.
Who it's for
Homeowners without heat or hot water, landlords with a tenant on the phone, and commercial premises that can't afford downtime.
When you need it
Boiler locked out, pressure keeps dropping, radiators cold at the bottom, noisy pump, error code on the display, water leaking from the case, or pilot light won't stay lit.
Why use a professional
A boiler fault ignored is a boiler fault that gets worse — and often takes the heat exchanger with it. Early diagnosis by a Gas Safe engineer keeps small problems small.
The cheapest time to deal with a plumbing or heating fault is almost always now. Water damage, gas issues and system stress compound quickly — the invoice grows with them.
If you leave it
Common DIY mistakes
You get the same sequence every time — so there are no surprises on the invoice and nothing missed on the job sheet.
Talk to a Gas Safe engineer, not a call centre. We triage the fault, ask the right questions and book a visit fast.
Full electrical and gas fault-finding on the appliance — sensors, fan, gas valve, PCB, flow and return, expansion vessel.
You get a clear price for the repair before we order the part or lift a spanner. Repair vs replace is your decision, with our honest advice.
Common Vaillant, Worcester, Ideal and Baxi parts stocked on the van; specialist parts sourced next day where possible.
Repair carried out, boiler re-commissioned, flue gas readings verified, controls checked and pressure set correctly.
12-month workmanship guarantee on the repair, and a reminder for the annual service to keep the fault from returning.
Answered by the team, day or night. Priority given to no-heat, no-hot-water and gas leak calls across West London.
£80 call-out including the first hour, £120/hr thereafter for standard boiler repairs. No hidden 'diagnostic fees'.
Common PCBs, pumps, PRVs, expansion vessels, diverter valves and sensors carried on the van — most repairs done same visit.
Vaillant, Worcester Bosch, Ideal, Baxi, Glow-worm, Alpha, Potterton, Main and Ariston — we work on all of them.
If a repair isn't worth it, we say so and give you the number for a swap. No inflated quotes to steer you into a new install.
Any repair we carry out is guaranteed for 12 months on the labour — no quibble callbacks.
Most 'broken boiler' calls come down to the same handful of faults. Here's what we actually check on a diagnostic visit, and why proper diagnosis saves you money.
A combi that keeps dropping below 1 bar has a leak somewhere — usually the pressure relief valve outside, a corroded chrome towel rail, or a pinhole in buried pipework. We pressure-test the system, isolate the leak and give you the options before topping it up for the twentieth time.
Nine times out of ten this is a stuck or worn diverter valve. We test the valve manually, check the PCB signal, and replace either the cartridge, the motor or the full valve depending on the fault — not the whole PCB by default.
Scale on the heat exchanger or sludge in the system — sometimes both. We check the magnetic filter contents, take a system water sample if needed, and quote a chemical clean or power flush rather than let the noise become a cracked heat exchanger.
Gas valve, ignition lead, electrode, flame sensor, fan pressure switch — we work through the sequence with the manufacturer's fault chart, not guesswork. Getting the right part first time is the difference between a one-visit fix and a three-visit saga.
Nothing here is generic — these are answers we give West London customers every week.
Ask us directlyStandard boiler repair is £80 call-out (includes the first hour) then £120/hr, plus parts at cost. You get the price for parts and any additional labour before we proceed.
For genuine emergencies (no heat, no hot water, gas smell) we prioritise and aim to attend within 90 minutes in West London, subject to availability. Non-urgent repairs are usually booked within 24–48 hours.
Yes — all mainstream UK brands including Vaillant, Worcester Bosch, Ideal, Baxi, Glow-worm, Alpha, Potterton, Main and Ariston. If the appliance is beyond economical repair we'll say so.
If it's within the warranty period, call the manufacturer first — a warranty repair is free. We repair boilers that are out of warranty, or where the manufacturer has declined a call.
Yes — 12 months on the workmanship. Manufacturer part warranties apply on top.
If the boiler is 12+ years old, needs a heat exchanger or a full PCB and pump, or you've had multiple repairs in the past 18 months — usually a new install is better value. We'll tell you which one you're looking at.
No pressure, no obligation. A Gas Safe engineer visits, scopes the job in person, and puts a written quote in your inbox — usually within 2–3 working days. For emergencies, call the line — it's answered 24/7 by the team, not a call centre.
Gas Safe · 24/7 emergency line · £80 call-out inc. first hour · £120/hr thereafter
