If you want to keep your boiler running safely and efficiently, an annual boiler service is essential. But one of the most common questions we hear is: how much does a boiler service cost in the UK? In this guide, we break down typical boiler servicing costs, what you get for your money, and how to avoid paying more than you need to – including what our Gas Safe registered engineers typically charge here in Exeter and across Devon.
How Much Does a Boiler Service Cost in the UK?
In most parts of the UK, the average boiler service cost ranges from £70 to £120 for a standard gas boiler service with a Gas Safe registered engineer.
Here’s a simple breakdown:
| Type of Boiler Service | Typical Cost |
|---|---|
| Standard annual boiler service | £70–£120 |
| Boiler service with landlord Gas Safety Certificate (CP12) | £90–£140 |
| Oil boiler service (OFTEC engineer) | £90–£150 |
Prices vary depending on location, boiler type, accessibility, age, and whether any parts need replacing.
At Home Exeter, we keep pricing transparent and competitive — with no hidden extras.
What’s Included in the Cost of a Boiler Service?
A proper service is not just a quick visual check. A Gas Safe registered engineer will carry out a full inspection and performance test to make sure your boiler is working safely and efficiently.
A typical boiler service includes:
| Service Task | What It Means |
|---|---|
| Visual inspection | Checking for leaks, corrosion, or damage |
| Safety checks | Ensuring safe gas combustion and ventilation |
| Gas pressure test | Confirming correct operating pressure |
| Internal component inspection | Checking heat exchanger, burner, seals, fans and ignition |
| Flue and emissions test | Ensuring safe removal of combustion gases |
| Condensate trap check | Cleaning and ensuring free-flowing drainage |
| System efficiency review | Checking flame quality, combustion and output |
| Service report issued | Providing written confirmation and recommendations |
A full service normally takes 30 to 60 minutes, depending on the system.
If your boiler needs new parts, filters, or specialist cleaning, this may be charged separately — but your engineer should always explain and agree costs before proceeding.
Why Pay for a Boiler Service?
A boiler service is one of the most cost-effective ways to protect your heating system. Here is why it is worth the cost:
It Keeps You Safe
Gas boilers produce carbon monoxide when burning fuel. A service checks for leaks, blocked flues and unsafe operation.
It Reduces Energy Bills
A serviced boiler runs more efficiently, meaning less gas is wasted.
It Prevents Breakdowns
Small issues can be spotted before they turn into major repairs.
It Protects Your Warranty
Most manufacturers require annual servicing — skip it and your warranty could be void.
It Extends Boiler Lifespan
Well-maintained boilers can last 12 to 15 years or more.
Skipping a £80 service can sometimes lead to a £500+ repair later — or even full boiler replacement.
Does Boiler Type Affect Service Cost?
Yes — service costs vary by boiler type.
| Boiler Type | Typical Service Cost |
|---|---|
| Gas combi boiler | £70–£120 |
| Gas system or conventional boiler | £70–£130 |
| Oil boiler (OFTEC engineer required) | £90–£150 |
| LPG boiler | Similar to gas pricing |
Oil boilers cost more to service because they require specialised work such as nozzle replacement and soot cleaning.
When Should You Book a Boiler Service?
The best time to book a service is:
- Once every 12 months
- Ideally in late summer or early autumn
- Before the winter rush
Landlords must legally service gas systems annually and provide a Gas Safety Certificate to tenants.
Are There Extra Costs to Be Aware Of?
While a standard service is usually fixed-price, extra costs may apply if:
- Parts need replacing
- There is sludge blocking the system
- Your boiler fails safety checks
- A repair visit is required instead of servicing
- Your boiler is difficult to access
You should always be told about additional costs before work is done.
Boiler Service vs Boiler Repair Cost
A service is preventative maintenance. A repair fixes a problem.
| Type of Work | Typical Cost |
|---|---|
| Standard boiler service | £70–£120 |
| Call-out and minor repair | £90–£180 |
| Major boiler repair | £200–£600+ |
| New boiler | £2,000–£4,500 |
In many cases, regular servicing prevents costly repairs.
How Long Does a Boiler Service Take?
Most boiler services take:
- 30–45 minutes for modern boilers
- Up to 1 hour+ for older systems
You will receive a written service report afterward.
Can You Service Your Boiler Yourself?
No. Gas work must legally be carried out by a Gas Safe registered engineer. DIY boiler work is illegal and dangerous.
Always check your engineer’s Gas Safe ID.
Boiler Servicing in Exeter
At Home Exeter, we provide:
- Gas Safe registered boiler servicing
- Fixed, transparent pricing
- Friendly local engineers
- Servicing for all major brands
- Optional repairs and breakdown cover
If you are also thinking about replacing your boiler, you can get a free, fixed price quote here:
→ Get your boiler quote from Home Exeter
Frequently Asked Questions About Boiler Service Cost
Is a boiler service worth it?
Yes. It improves safety, reduces breakdown risk and keeps your warranty valid.
Is a boiler service cheaper than a repair?
Almost always. A £90 service can prevent a £400–£800 repair later.
Do landlords have to pay for boiler servicing?
Yes. It is a legal requirement for rented properties.
Will a service fix my boiler if it is not working?
Not always. Repairs are normally separate — but engineers can often do both in one visit.
Can I get a free boiler service?
Some grants cover service costs, but they are rare. However, servicing is still one of the lowest-cost heating expenses.
How often should I service my boiler?
Every 12 months.
Book Your Boiler Service Today
If you live in Exeter or the surrounding area and want a reliable, professional boiler service at a fair price, Home Exeter is here to help.
We make boiler servicing simple, transparent and stress-free.
If you would like pricing or to book your annual boiler service, just get in touch — or start with a free quote below:
