Your boiler runs almost every day, often 24 hours a day during a cold snap. Like anything that works that hard, it needs looking after. An annual service is one of the cheapest things you can do for it, and it keeps your warranty alive, catches faults before they turn into breakdowns, and keeps your gas bill honest. This guide explains why servicing matters, exactly what we check on a service, and what the photographic report you get back at the end actually tells you.
Why Service Annually
Manufacturer, insurer and Gas Safe all point at the same answer: once a year.
- Safety: A service catches worn seals, blocked flues and combustion problems that can leak carbon monoxide. You will not smell it. An annual check is the cheapest way to be sure.
- Efficiency: A clean, properly tuned boiler burns less gas for the same heat. A neglected boiler costs you steadily more every winter.
- Reliability: Most breakdowns happen in January. A service in late summer or autumn catches the small problems before they become Christmas-morning disasters.
- Warranty protection: Almost every manufacturer's warranty is conditional on annual servicing by a Gas Safe engineer. Skip it and you risk the cover on a £2,000 boiler to save £90.
- Insurance: Home insurance policies increasingly ask for proof of servicing before paying out on boiler-related claims.
- Longevity: A well-serviced boiler lasts 15-20 years. A neglected one often fails at 10-12.
What the Service Covers
A proper boiler service is a structured inspection and clean. Every one of these steps is photographed on a Pipe Guys service.
- Visual inspection: Casing, pipework, connections, electrical controls and signs of water damage or corrosion.
- Burner and combustion: Flame colour and stability checked. Flue gas analysed with a calibrated analyser to confirm the boiler is burning cleanly.
- Controls and safety devices: Pressure valves, thermostats, overheat cut-offs and flow sensors all tested to confirm they operate at the correct set points.
- Cleaning: Burner and heat exchanger cleaned where needed so heat transfer stays efficient.
- Flue inspection: Flue route and terminations checked for blockages, corrosion and correct seal.
- System pressure: Pressurised or topped up as needed, with a note to the homeowner if the system is losing pressure too often.
- Gas tightness test: Gas line tightness tested and any leaks fixed on the spot.
At the end you get a Gas Safety record and, for landlords, a Landlord Gas Safety Certificate (CP12).
The Photographic Service Report
Every Pipe Guys service comes with a photographic report emailed and WhatsApp'd to you on the day. That means you see, photograph by photograph, exactly what was checked, what was cleaned, and anything the engineer thinks is worth watching on the next service. It's transparency you can't get from a tick-box certificate alone.
Book Your Boiler Service Today
From £79 with a full photographic report sent the same day. Call Pipe Guys on 07869 837 241 to book.
Call to BookWarning Signs to Watch For
Some symptoms shouldn't wait for the annual service. If you spot any of these, call a Gas Safe engineer straight away.
- Yellow or orange pilot light: Should always be blue. Yellow or orange means bad combustion and possible carbon monoxide.
- Banging, whistling or kettling: Usually limescale in the heat exchanger or air trapped in the system. Gets worse if ignored.
- Visible leaks: Water around the boiler or dripping from the condensate pipe. Turn the boiler off and call for help.
- Weak or no heating: Radiators not heating, hot water running cool or intermittent.
- Frequent short-cycling: Boiler constantly turning on and off instead of running steady.
- Smell of gas: Do not wait. Turn off the gas at the meter and call the National Gas Emergency line on 0800 111 999.
- Error codes: Modern boilers display fault codes. Note the code and call an engineer.
Service Cost
A Pipe Guys full annual service costs between £79 and £124 depending on the make and model. That includes the full manufacturer-standard service, all the safety checks listed above, and the photographic report. Repair call-outs are £84 plus VAT and include the first hour of diagnosis and labour.
Against the £1,795+ cost of a new boiler or a £200-£500 emergency breakdown fee, the annual service is the best value heating spend you'll make all year.
Landlord Requirements
If you rent out a property with a gas appliance, servicing is a legal duty, not a choice.
- Gas Safety Regulations: All gas appliances must be checked every 12 months by a Gas Safe engineer and a CP12 issued to the tenant.
- Timing: Most landlords schedule in September or October so the heating is ready for winter.
- Records: Keep copies of every CP12 for at least 2 years.
- Tenant access: Give tenants 24-48 hours' notice of the service visit.
- Penalties: Fines up to £6,000 per breach and unlimited criminal liability if an un-serviced boiler injures anyone.
Pipe Guys issues CP12 Landlord Gas Safety Certificates in the same visit as the annual service, so one call-out covers both jobs.
Frequently Asked Questions
Usually 60-90 minutes depending on access and whether the boiler needs any cleaning beyond the routine. We photograph every step so you can see what was done.
Once a year. Most people book in September or October, right before the heating season. If the boiler is misbehaving at any point, don't wait for the anniversary.
No. Gas work is legally restricted to Gas Safe registered engineers. DIY gas work voids the warranty, the insurance and is a prosecutable offence.
The engineer explains it, photographs it, and gives you options on the day. Small fixes can often be done there and then. Bigger repairs are quoted separately so you can decide what to do next.
Warranties cover manufacturing defects, not routine servicing. Servicing is a separate cost but most manufacturers require it annually to keep the warranty valid.
Yes. Even new boilers need servicing from year one to keep the warranty valid. The first service is usually the cheapest because the boiler is clean.
