How Much Does Boiler Servicing Cost?
Last updated: 4 September 2026
Quick Answer
A boiler service typically costs £70-£120, depending on the boiler type and location.
Overview
Regular boiler servicing is important for safety. This guide covers the cost of boiler servicing.
Step-by-Step Fix
Safety & Preparation
Before beginning any repair, ensure you have isolated power or water supplies. Clear your workspace, gather standard hand tools, and wear appropriate personal protective equipment (PPE).
- Always ensure you find a Gas Safe registered engineer for any boiler work; you can easily verify their registration number on the official Gas Safe Register website. Checking their ID card upon arrival is also a crucial safety step to confirm they are indeed qualified and registered.
- Once you've found a suitable engineer, contact them to book your annual boiler service. It's often best to schedule this during the warmer months (spring or summer) to avoid peak demand and potential heating issues in winter.
- During the service, the engineer will thoroughly inspect your boiler and its flue to ensure everything is working safely and efficiently. They will check for leaks, corrosion, and proper ventilation, making sure all components meet safety standards.
- After the service is complete, always request and keep a copy of the service certificate from your engineer. This document confirms the work carried out, the date, and that your boiler is safe and compliant, which is often required for warranties or property rentals.
- To ensure ongoing safety and efficiency, make sure you maintain a regular annual servicing schedule for your boiler. Set a reminder in your calendar or ask your engineer if they offer a yearly service reminder to keep on top of this vital task.
Common Symptoms & Diagnostic Resolutions
Review the common error codes and operating symptoms below to quickly identify the root cause of the fault before ordering replacement parts.
| Symptom / Code | Likely Root Cause | Recommended Resolution |
|---|---|---|
| Boiler not working | Needs service | Book a service. |
Frequently Asked Questions
How often should I service my boiler?
Annually.
Is boiler servicing a legal requirement?
For landlords, yes.