
Boiler Servicing · Oldham & Greater Manchester
Annual Boiler Servicein Oldham &Greater Manchester.
Keep your boiler safe, efficient and warranty-valid year on year. Full manufacturer service schedule, written report, and a prompt appointment whenever we have a slot.
Free Boiler Servicing Quote
We aim to respond as soon as possible. No obligation.
- 7+Years experience
- 1,000+Annual services completed
- Quoted on callAnnual service
- #558388Gas Safe registered
- Every visitWritten report
Service Overview
Boiler Servicing, explained simply.
Honest, plain-English answers, what the service is, who it's for, when you need it, and why a Gas Safe specialist matters.
What it is
A full manufacturer-spec annual service: combustion analysis, gas-pressure check, flue inspection, seals and controls, casing strip-down and clean, completed by a Gas Safe engineer and signed off in writing.
Who it's for
Any homeowner with a gas boiler, plus every landlord who needs to keep their tenants safe and their warranty valid.
When you need it
Once every 12 months, required by almost every boiler manufacturer to keep the warranty live, and recommended by Gas Safe Register and the HSE.
Why a pro matters
A serviced boiler is up to 15% more efficient than a neglected one, far less likely to break down mid-winter, and protected against the carbon-monoxide risks that come with worn seals and blocked flues.
The Cost of Ignoring It
What it costs to wait, and the mistakes that make it worse.
Skipping annual servicing is the single most common reason boilers fail early and warranty claims get rejected.
If you leave it
- Warranty invalidated, manufacturer refuses to pay for a future repair
- Higher gas bills as combustion drifts out of spec
- Carbon-monoxide risk from worn seals and corroded heat exchangers
- Mid-winter breakdowns that cost 3× a routine service
- Failed landlord inspections and tenant complaints
Common mistakes
- Assuming a new boiler doesn't need a service for the first few years, most warranties require year-one service
- Booking a 'quick check' instead of a full Benchmark-standard service
- Letting the same engineer skip the gas-pressure check or combustion analysis
- Forgetting to keep the Benchmark book and service receipts for warranty claims
Our Process
A clear, predictable system, from first call to sign-off.
Visual inspection
Casework, flue terminal, gas tightness, room ventilation and external condensate drain checked first.
Strip & clean
Casing removed, burner, heat exchanger and condensate trap inspected and cleaned per manufacturer manual.
Combustion analysis
Flue-gas analyser readings logged against manufacturer tolerances, the test that proves the boiler is burning safely.
Controls & safety
Thermostat, expansion vessel pressure, PRV, overheat thermostat and flame-failure devices all verified.
Report & sign-off
Benchmark book stamped, written service report emailed, and any advisories priced separately, never bundled into the service fee.
The Benefits
Why customers choose C Nixon for boiler servicing.
Warranty stays valid
Every manufacturer logbook stamped on the day, keeping your 5–20 year warranty enforceable.
Lower bills
Clean combustion can recover up to 15% of efficiency lost to soot, blocked condensate and worn jets.
Fewer breakdowns
Most winter boiler failures are predictable from a service report, we catch them before they fail.
Safer home
Flue, seals and combustion checked to current Gas Safe protocols, your CO risk is verified, not assumed.
Documented history
Stamped Benchmark book and emailed report, valuable evidence for warranty claims and resale.
Quiet, smooth running
Cleaned condensate trap and degassed system means no banging, kettling or stop-start operation.
Recent work
Real boiler servicing jobs across Greater Manchester.






In Detail
Everything you need to know about boiler servicing.
We service every major UK domestic boiler brand, combi, system and regular, to the manufacturer's published schedule, not a generic checklist.
Brands we service
Worcester Bosch, Vaillant, Ideal, Baxi, Glow-worm, Alpha, Potterton, Main, Vokera, Ariston, Ferroli and Viessmann. If it's gas and it's in Greater Manchester, we can service it.
What a Gas Safe service includes
Visual flue check, casing removal, heat-exchanger inspection, burner clean, gas-pressure test, flue-gas analysis (CO and CO₂ ratio), seal check, expansion vessel pressure top-up, condensate trap inspection, electrical safety check, and operational test through all programmes.
Combi vs system vs regular
Combi services include domestic hot-water flow and temperature checks. System boilers add cylinder, unvented controls and expansion vessel checks. Regular (heat-only) boilers include feed-and-expansion tank and ball-valve checks.
Landlord servicing & CP12
Combine your annual service with your CP12 gas safety certificate on the same visit and save on call-out fees. Multi-property portfolios scheduled, reminded and invoiced centrally.
Service plans
Repeat customers get annual reminders by text, priority booking, and locked-in pricing, no plan fees, just a phone call when your service is due.
FAQs
Straight answers on boiler servicing.
Can't see your question? Call Chris on 07957 661156 , honest answer, no sales script.
How much does a boiler service cost?+
Standalone services and combined service + CP12 jobs are quoted on the call. Multi-property landlord packages are quoted on portfolio size.
How long does a boiler service take?+
A standard service takes 45–60 minutes. Older or heavily sooted boilers may take longer if extra cleaning is required, we'll tell you on the day.
Will a service really keep my warranty valid?+
Yes. Worcester, Vaillant, Ideal and Baxi all require evidence of annual servicing by a Gas Safe engineer to enforce their warranty. Without it, claims are routinely refused.
Do you service boilers you didn't install?+
Yes. We service every major UK gas boiler brand whether we originally installed it or not.
Can I book a service quickly?+
Often, yes. We aim to respond as soon as possible across Oldham and the surrounding boroughs.
What if you find a fault?+
We pause, explain the issue, give you a written price, and let you decide. Service fee is never bundled with repair charges.
Is a service the same as a Gas Safety Certificate?+
No, they're separate jobs, but we can carry out both on the same visit for landlords. The CP12 is the legal landlord document; the service keeps the warranty valid.
What time of year should I book?+
Late summer or early autumn, before the heating demand returns. Booking in October–November means waiting times and emergency callout risk go up sharply.
Related Services
Also commonly booked with boiler servicing.
Boiler Repairs
Fast diagnosis and repair on most major boiler brands across Oldham and Greater Manchester.
Read moreBoiler Installation
New A-rated boiler installations from leading UK manufacturers, with manufacturer-backed warranty.
Read moreGas Safety Certificates
CP12 gas safety certification, completed within 3 working days.
Read moreAreas We Cover
Boiler Servicing across Greater Manchester.
Ready When You Are
Get your boiler servicing sorted, properly, the first time.
Gas Safe registered, fixed-price, same-day where possible. Speak to Chris directly, no call-centre, no sales script, no pressure.
- Gas Safe #558388
- Fully insured
- Fast response
- Fixed written quotes
Mon – Sat · 8:00 AM – 10:00 PM · Sun · Closed
Fast, honest service. We aim to respond as soon as possible.
