How often should I get my boiler serviced?

Once a year is the standard recommendation from all major boiler manufacturers. Most warranties require annual servicing to remain valid. The best time to book is in late summer or early autumn, before the heating season starts and engineers become busiest.

How long does a boiler service take?

A typical boiler service takes between 45 minutes and one hour. If the engineer finds an issue that needs attention, they will discuss it with you and provide a separate quote. The service itself does not include repair work unless agreed beforehand.

Can I combine a boiler service with a gas safety check?

Yes. Many homeowners and landlords book a boiler service and gas safety check together. This is especially common for landlords who need a CP12 certificate. Ask when you call and we will arrange both for the same appointment.

Boiler Servicing in Bristol

An annual boiler service keeps your heating system running safely and efficiently, maintains your manufacturer warranty, and catches small faults before they become expensive breakdowns. OnCall Home Repairs connects you with Gas Safe registered engineers in Bristol who carry out thorough boiler services on all major brands — Worcester Bosch, Vaillant, Baxi, Ideal, and more.

Get a Free Quote 0333 240 8428

Why Annual Boiler Servicing Is Worth It

Your boiler is the hardest-working appliance in your home. It fires up thousands of times a year to heat your water and keep your radiators warm. Over time, internal components wear, seals degrade, and small amounts of debris accumulate inside the heat exchanger. Without regular servicing, these issues build up until they trigger a breakdown — usually at the worst possible time.

Most boiler manufacturers require an annual service to keep the warranty valid. If your boiler develops a fault and you cannot provide proof of servicing, the manufacturer may refuse to cover the repair. A service certificate from a Gas Safe registered engineer protects you against this.

Beyond warranty protection, a well-serviced boiler uses less gas. An inefficient boiler can add noticeable amounts to your energy bills each quarter. If your engineer identifies that your boiler is nearing end of life, they can advise on boiler replacement options that could save you money long-term. And if your heating system feels sluggish despite servicing, a power flush may be the next step to restore full performance.

What Happens During a Boiler Service

Visual Inspection

The engineer checks the boiler casing, flue, and surrounding pipework for signs of damage, corrosion, or leaks. They inspect the condensate pipe and drainage, and check that ventilation around the boiler meets current regulations.

Internal Component Check

The boiler is opened and internal components are inspected. This includes the burner, heat exchanger, ignition system, fan, and all seals. Worn or degraded parts are flagged and replacements discussed with you before any work is carried out.

Gas Pressure and Flue Analysis

The engineer measures gas pressure at the inlet and checks the boiler operating pressure. A flue gas analysis is performed using a calibrated analyser to confirm the boiler is burning gas cleanly and efficiently. Any readings outside safe parameters are addressed immediately.

Service Record and Advice

You receive a written service record confirming the date, findings, and any recommendations. If the engineer spots issues that need watching or addressing, they will explain them clearly and provide a quote for any follow-up work.

Related Boiler Services

Boiler Repair Gas Safety Checks Central Heating Repair

Boiler Servicing Across Bristol

Our Gas Safe registered engineers service boilers across Bristol, Clifton, Redland, Bishopston, Bedminster, Southville, and surrounding villages. Appointments can be booked for a time that suits you, including evenings and Saturdays where availability allows.

BristolCliftonRedlandBishopstonSouthvilleBedminsterEastonHenleazeWestbury-on-TrymHorfieldFishpondsStoke BishopKnowleBrislingtonKeynshamSt Andrews

Frequently Asked Questions

Book Your Boiler Service Today

Protect your warranty, reduce your energy bills, and avoid mid-winter breakdowns. Call OnCall Home Repairs to book a boiler service with a Gas Safe registered engineer in Bristol.

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