Boiler Service Cost UK | What You Should Expect to Pay

Boiler Service Cost UK | What You Should Expect to Pay

Table of Contents

I have to be honest with you here. Boilers aren’t the most thrilling topic for anyone. But when your boiler starts making strange noises or won’t start on a cold morning, it will be the only thing on your mind. If you’ve ever caught yourself wondering how much a boiler service costs or whether you’re paying more than you should, you’re in good hands.

Think of your boiler like your car; just because it’s running doesn’t mean everything’s okay under the hood. A service is about catching the little things before they become big, expensive ones. What servicing tips can help you?

  • Spot early signs of wear
  • Maintain fuel efficiency
  • Prevent sudden breakdowns
  • Keep your warranty intact

So while the cost of boiler maintenance might feel like an extra bill, it’s often cheaper than emergency repairs or full replacements.

Right now in the UK, a standard boiler service costs between £70 and £120. The exact price depends on a few things:

  • Where do you live
  • What type of boiler do you have (combi, system, or conventional)
  • If you’re booking a one-off service or part of a care plan
  • If it’s a standard booking or an emergency visit

Typical Boiler Service Price Breakdown:

  • Annual basic service: £70–£90
  • Full service with performance and safety checks: £90–£120
  • Emergency or weekend call-out: £120–£150+

Typical Boiler Service Price Breakdown:

Boiler TypeModel ExamplesOne-Off Service CostService Plan (Yearly)
Combi BoilerWorcester Bosch Greenstar, Ideal Logic+£70–£90£100–£160
System BoilerVaillant ecoTEC Plus, Baxi Megaflo£80–£110£120–£180
Conventional BoilerGlow-worm Energy Regular, Ideal Mexico£90–£120£130–£200
Biomass BoilerETA, Windhager£150–£250Varies by provider
Oil BoilerGrant Vortex, Worcester Bosch Heatslave£100–£140£160–£220

When a Gas Safe registered engineer like those at Heatcore turns up, they’re doing more than just giving your boiler a quick look. I’m going to break down what it would look like:

  • Check for any sort of leaks or corrosion
  • Test all key components and safety systems
  • Clean internal parts
  • Measure gas pressure and flow
  • Confirm the flue is safely removing fumes
  • Assess your condensate pipe for blockages or freezing risk

Note: They’ll give you a service report at the end. This paperwork is worth keeping as it proves you’ve had the work done and can support any warranty claims later.

Okay, to explain why you need to get your boiler condensate pipe serviced, first, you need to understand what it is and how it works. A condensate pipe is a small plastic pipe that carries away the waste water your boiler creates when it’s running. Modern boilers are obviously more energy-efficient because they extract extra heat from the gases they produce. This process creates water vapour, which then cools and turns into liquid called condensate. That liquid needs somewhere to go, and that’s what the condensate pipe is for.

It usually runs from your boiler to an outside drain. If that gets blocked, it is often because it’s frozen in winter. Now,  your boiler might shut down as a safety precaution. And that is why engineers always check it during a service, making sure it’s clear and properly insulated.

A boiler condensate pipe is a small pipe that safely drains water that is created during the heating process. When this pipe gets blocked, your boiler can shut down completely.

During a service, the engineer will check that the pipe is clear and insulated (especially important in winter). If there’s damage or buildup, fixing it could add to your costs, but it’s better than a breakdown during a cold snap.

Yes, most definitely. If your household qualifies for the ECO4 scheme, you might not have to pay anything at all. ECO4 helps eligible homes replace inefficient boilers and heating systems without the usual upfront costs.

Internal Link: Check out how EPC ratings affect ECO4 eligibility. Add EPC blog link here

The Boiler Upgrade Scheme is a government-backed initiative to help homeowners in England switch from old, fossil fuel-based heating systems to more energy-efficient, low-carbon options. If you’re upgrading to a heat pump or biomass boiler, you could get a grant of up to £7,500 to cover the cost. To apply, you’ll need to work with a certified installer, and they’ll handle the paperwork and apply for the grant on your behalf. It’s designed to make greener heating affordable, especially if you’re looking to cut down energy bills and future-proof your home.

Try to get your boiler checked in late summer or early autumn. That way, you avoid the rush when everyone else realises their heating doesn’t work in November.

And has it been over a year since your last service? Book one ASAP. Don’t wait until you’re stuck without heating.

So the question is, is the boiler service cost even worth it?

Yes, the boiler service cost might feel like one more thing to budget for, but it’s a smart investment. It can prevent surprise breakdowns, lower heating bills, and even unlock access to government support.

Let’s get that boiler

Check Free Eligibility

"*" indicates required fields

Latest Post
Share Blog
Check Out Our Most Recent Posts

Download Your EPC Guide

Unlock everything you need to know about your home’s Energy Performance Certificate (EPC)

"*" indicates required fields

This field is for validation purposes and should be left unchanged.