Boiler repairs
Ideal, Baxi, Worcester, Glow-worm, Potterton, Main, Alpha, Viessmann. Most common: PCB, fan, ignition lead, gas valve, diverter valve cartridge, auto air vent, PRV.
Heating Repairs & Servicing · Scunthorpe & Humber
Heating fault diagnosedand fixed quickly in Scunthorpe —by a Gas Safe engineer you can ring directly.
No heat, no hot water, low pressure, banging rads, error codes — diagnosed properly first, quoted in writing, fixed in one visit where parts allow. Free, no-obligation quotes.
★★★★★Family-run · Gas Safe registered 556262 Mon–Fri · 18 years in plumbing & heating · Workmanship guarantee on every repair.
18 yearsin plumbing & heating
Gas SafeRegistered — every gas job certified
G3 CertifiedUnvented hot water qualified
Mon–Fri8am–5pm
Fixed priceQuote in writing before work starts
Service overview
Real heating repairs by a real engineer
When your heating fails in January, the last thing you need is a call centre, a 4-hour window, and a £95 'diagnostic fee' before anyone tells you what's actually wrong. We diagnose first, quote second, and only charge for the repair you agree to.
What it is
Diagnosis and repair of gas central heating systems — boilers, pumps, motorised valves, thermostats, programmers, radiators, TRVs, expansion vessels, condensate and pressure faults. Plus annual servicing to keep the manufacturer warranty alive.
Who it's for
Homeowners and landlords across Scunthorpe, Brigg, Messingham, Hull, Grimsby and Doncaster whose system is making noises it shouldn't, costing more than it should, or simply refusing to fire up.
When it's needed
When the boiler shows an error code, the rads are cold at the top or the bottom, the system needs topping up every week, you've lost hot water, the house won't get past 17°, or the annual service is overdue.
Why a professional matters
DIY heating fixes go wrong fast. Bleeding the wrong way introduces air, sealing a leak under pressure cracks fittings, and adding inhibitor to a system already full of sludge does nothing. A Gas Safe engineer diagnoses properly and protects the manufacturer warranty.
What goes wrong
What happens if a heating fault is ignored
Heating systems give you warning signs long before they fail. The cost of ignoring them isn't linear — it doubles.
Low pressure becomes a leak
A system that needs topping up monthly has a leak somewhere — usually a slow weep on a rad valve or a failing expansion vessel. Left alone, it floods a ceiling.
Cold-at-the-bottom rads kill heat exchangers
Magnetite sludge sitting in the bottom of radiators is being pumped through the boiler heat exchanger every cycle. Within 12–18 months the heat exchanger blocks — typically an expensive part.
Kettling noises mean limescale
That rumbling, kettle-boiling noise from the boiler is limescale on the heat exchanger. Past a certain point the unit needs replacing.
Pilot light yellow, not blue
A yellow flame on older boilers means incomplete combustion — and carbon monoxide. Stop using it and call a Gas Safe engineer straight away.
Missed annual service voids warranty
Ideal, Baxi and Worcester all require an annual service to honour the 10-year warranty. Skip one year and an expensive PCB failure becomes your problem, not theirs.
Condensate freezing in cold snaps
Externally routed condensate pipes freeze in January, the boiler locks out, the house goes cold and the call-out queue is three days long. Re-routing internally is a 90-minute job in summer.
Our process
Our diagnosis & repair process
Built to find the actual fault — not the symptom you noticed.
- 01
Inspection
On-site survey — system age, condition, location and the customer's actual goals discussed and noted.
- 02
Diagnosis
Pressure tested, gas-rate checked where relevant, faults isolated and proven. No guess-work, no upsells.
- 03
Written Fixed Quote
Itemised quote in writing before any work starts — parts, labour, timing and warranty all stated.
- 04
Service Execution
Time-served Gas Safe / G3 engineer carries out the work to manufacturer and Building Regulations standard.
- 05
Testing & Verification
Soundness test, flue gas analysis, pressure test or G3 sign-off as relevant — recorded in writing.
- 06
Completion & Guarantee
Certificates issued, system demonstrated to the customer, site left clean, workmanship guarantee logged.
Benefits
Why customers ring us first
One visit where possible
We carry the most common parts in the van — pumps, motorised valves, PRVs, expansion vessels, ignition leads — to fix on the first visit when we can.
Honest diagnosis
If your 14-year-old boiler is uneconomical to repair we'll tell you, with the numbers. No false hope, no upselling.
Warranty preserved
We service to manufacturer spec, log it, and protect your 10-year guarantee where it still applies.
Workmanship guaranteed
12-month guarantee on every repair, in writing. If the same fault returns, we come back free.
No surprise invoices
Diagnosis flat fee, repair quoted in writing before we start. The invoice matches the quote. Always.
You can ring Azim directly
No call centre, no scripts. If you need an update, you ring the engineer doing the work.
Recent work
Real jobs, real installs.
A few recent heating jobs completed across North Lincolnshire.
In detail
What we repair, service and upgrade
Heating systems are made of more than just the boiler. Most of the faults we attend are in the system around it.
Pump & valve replacements
Grundfos, Wilo and DAB circulation pumps swapped same-visit. Motorised 2-port and 3-port mid-position valves (Honeywell V4073, Drayton ZV) — full body or actuator-only depending on the failure mode.
Power-flushing & chemical flushing
Magnetite-clogged systems flushed to MagnaClean standard. Includes Sentinel X400 / X100 inhibitor charge and benchmark recorded. We fit a system filter on every flush we do.
Radiator balancing & rebuilds
Cold-at-the-bottom rads cleared, cold-at-the-top rads bled and pressurised, TRVs renewed, lock-shields balanced across the system so the furthest rad warms at the same rate as the nearest one.
Controls upgrades
Old mechanical timers swapped for Hive, Nest, Tado or Drayton Wiser. Zoned heating set up with motorised valves and individual room stats for larger Hull and Grimsby properties.
Annual boiler servicing
Strip-down service to manufacturer spec — combustion analysis, gas-rate check, seals replaced, condensate cleaned, benchmark logged. The piece of paper that keeps your warranty alive.
Landlord servicing contracts
Annual gas safety certificate + boiler service bundled and scheduled — we'll flag renewal dates with you in advance. Common across rentals in Scunthorpe town centre and Doncaster.
Frequently asked
Straight answers,
in plain English.
Can't see your question? Ring Azim directly on 07576 593045.
How quickly can you attend a heating breakdown?
Mon–Fri 8am–5pm across Scunthorpe, Brigg, Messingham, Scotter and Barton-upon-Humber. Mon–Fri 8am–5pm in Hull, Grimsby and Doncaster — call as early in the day as possible.
How much is a heating repair?
Diagnosis is a flat fee — typically a small flat fee. The repair itself is then quoted in writing before we start. Most common repairs (pump, PRV, expansion vessel, motorised valve) sit.
How much is a boiler service?
Standard combi services are quoted as a fixed price before we book the visit.
My boiler keeps losing pressure — is that serious?
Yes. A system that won't hold pressure has either an internal leak (typically the expansion vessel or PRV) or an external one (rad valve, towel rail, hidden pipe under a floor). Topping it up weekly just masks the problem and corrodes the system from inside.
Do you carry parts in the van?
Yes — the common consumables and pumps, motorised valves, expansion vessels, PRVs, ignition leads, thermistors and TRVs. Specific PCBs and gas valves we will order in next-day from our local trade counter.
Can you service a boiler installed by someone else?
Absolutely. We service every brand, regardless of who fitted it. We'll also flag anything non-compliant we find — without using it as a sales pitch.
Do you guarantee your repairs?
12-month workmanship guarantee on every repair, in writing on the invoice. If the same fault returns inside 12 months, the return visit is free.
What if my boiler is beyond economical repair?
We'll show you the parts cost, the realistic remaining life, and the running cost vs a new install — and let you decide. No pressure either way.
Related services
More from A T Plumbing & Heating
Next step
Heating not working? Speak to a real engineer now.
Family-run · Gas Safe registered 556262 across North Lincolnshire. Diagnosis flat-fee, repair quoted in writing before we start.
- Gas Safe registered
- G3 certified
- Fully insured
- Family-run · Gas Safe registered 556262
Phone
07576 593045
Based
17 High Burgage, Winteringham, DN15 9NE
Hours
Mon–Fri 8am–5pm · Sat/Sun closed