What to Expect During Annual Boiler Servicing

Annual boiler servicing is a key part of responsible home maintenance. Experienced heating engineers like KD Jones know that servicing your boiler each year helps prevent breakdowns, keeps your energy bills in check, and ensures your home stays safe and warm throughout the colder months.

In this blog, we’ll walk you through exactly what happens during a boiler service, why it matters for homeowners and landlords, and why KD Jones is the trusted local name for anything boiler-related.

Why Annual Boiler Servicing Is Essential

A boiler might seem to be working just fine, but small issues can build up over time. These faults may not be noticeable at first, but can lead to major problems if left unchecked. Regular servicing is designed to identify and resolve these issues before they escalate.

Skipping your annual boiler service can lead to:

• Reduced boiler efficiency
• Higher heating bills
• Increased risk of carbon monoxide leaks
• Voided manufacturer warranties
• Unexpected system failures

Servicing your boiler annually helps extend its life and protects your investment. It also ensures that your heating system is operating as safely and efficiently as possible, which is particularly important in 2025 as households aim to reduce carbon emissions and energy use.

What Happens During an Annual Boiler Service?

When you book with KD Jones, one of our fully qualified, Gas Safe registered heating engineers will carry out a detailed inspection of your boiler and heating system.

Here is what a full boiler service includes:

1. Visual Inspection

We start with a full visual check of the boiler and surrounding components. This includes the pipework, pressure levels, casing, and flue. We look for signs of leaks, corrosion, or damage.

2. Control and Settings Review

We check your thermostat, timer, and boiler controls to make sure everything is working correctly. We also make sure the settings match your home’s heating needs.

3. Component Checks and Cleaning

Once the casing is removed, we inspect and clean the main internal parts, including the burner, heat exchanger, fan, and ignition system. Cleaning these components ensures better performance and lowers the chance of future faults.

4. Gas Pressure and Flow Test

We check that the boiler is receiving the correct gas pressure and that the flow is consistent with the manufacturer’s requirements.

5. Flue and Ventilation Assessment

The flue system is checked to make sure it is free from blockages and that gases are being safely expelled. We also confirm there is adequate ventilation around the appliance.

6. Combustion and Emissions Test

Using calibrated testing equipment, we check the boiler’s combustion levels to ensure it is burning fuel efficiently. If adjustments are needed, our engineer will make them during the service.

7. Safety Checks and Service Record

We carry out all necessary safety checks and provide a service report, which may be required for warranty purposes or landlord gas safety certificates.

8. Honest Expert Advice

After the service, we will provide clear feedback. If we notice any worn parts or areas of concern, we will explain your options and offer professional recommendations.

Why Choose KD Jones for Your Annual Boiler Servicing?

Not all heating engineers offer the same level of care and professionalism. KD Jones has built a strong reputation across Surrey for dependable service and trusted advice.

Here’s why local homeowners choose us:

Accredited Expertise

We are Worcester Accredited Installers, which means we are trained by the manufacturer to install and maintain their systems to a high standard. This gives you access to extended guarantees and the confidence that your system is being looked after properly.

Transparent Pricing

We provide clear, upfront quotes with no hidden charges. Our focus is on building long-term relationships with customers who value quality and honesty. Plus, with our loyalty scheme, you can spread the cost of your boiler service across the year; think of it like a monthly upkeep fee (of just £10 per month)!

Flexible Scheduling

We offer convenient appointment times and fast response callouts. Whether it is your annual service or an emergency boiler issue, we are here to help.

Complete System Support

If your service reveals wider heating concerns such as pressure loss, uneven heat distribution, or older components, we can advise on practical solutions. Our engineers are qualified to look at the whole system and make improvements where needed.

Why You Shouldn’t Put It Off

If your boiler has not been serviced this year, now is the time to act. A simple, affordable service can save you the cost and stress of a breakdown later. For landlords, it is also a legal requirement to service gas boilers annually and keep appropriate records.

Even newer boilers need annual servicing to maintain their warranty and performance. Without a valid service record, you may not be covered if something goes wrong.

Book Your Boiler Service with KD Jones Today

Annual boiler servicing protects your home, your budget, and your peace of mind. KD Jones offers expert care, trusted advice, and a team of professional heating engineers ready to keep your system running safely and efficiently.

Visit our Boiler Breakdown & Servicing page to learn more or call us today on 01737 211 376 to book your appointment.

And, if you enjoyed this blog, you’ll love our recent post on Condensing Boilers!

FAQs

How often should I book annual boiler servicing?

You should book annual boiler servicing once every 12 months, regardless of how new your boiler is. Most manufacturers require yearly servicing to keep warranties valid. A professional heating engineer will check, clean, and test your boiler to make sure it’s running safely and efficiently.

What does an annual boiler service include?

An annual boiler service includes a visual inspection, internal component cleaning, gas pressure tests, emissions analysis, and safety checks. A certified heating engineer will also check your controls, ventilation, and flue system, then provide a written service report for your records.

Why is annual boiler servicing important?

Annual boiler servicing helps prevent breakdowns, reduces energy costs, and keeps your home safe. It also maintains manufacturer warranty requirements and reduces the risk of carbon monoxide leaks. Regular servicing by a professional heating engineer can also extend your boiler’s lifespan.

Can a boiler service help lower my energy bills?

Yes. A well-serviced boiler burns fuel more efficiently, meaning less energy is wasted. By removing soot buildup, checking gas flow, and tuning combustion levels, your heating system runs more effectively, helping to reduce your monthly energy costs.

Is boiler servicing a legal requirement for homeowners?

No, boiler servicing is not a legal requirement for homeowners, but it is strongly recommended. For landlords, however, it is a legal requirement under the Gas Safety (Installation and Use) Regulations. Annual checks must be carried out by a Gas Safe registered heating engineer, and a record must be provided to tenants.