A new boiler is a big decision, and one we help homeowners across Exeter and Devon make every week. If your heating is unreliable, noisy, or costing more than it should, it might be time to replace it – most boilers last 10 to 15 years, but many start losing efficiency well before that. This guide covers when to replace, what it costs, and how to choose the right boiler for your home, with installation by our Gas Safe registered engineers.
Is It Time for a New Boiler?
If your heating system is unreliable, noisy, or costing you more than it should, it might be time to consider a new boiler. Most boilers last 10 to 15 years, but many start losing efficiency well before that.
Upgrading your boiler can:
- Reduce your energy bills
- Make your home more comfortable
- Lower your carbon footprint
- Cut down on costly call-outs and repairs
- Add value to your property
In this guide, we’ll cover everything you need to know before buying a new boiler — from signs it’s time for a replacement, to installation costs and choosing the right system.
Signs You Need a New Boiler
You might not need a full breakdown to realise your boiler is on its way out. Here are the most common signs you may need a new one:
1. Your boiler is over 10–15 years old
Older boilers are less efficient, often rated C or D at best. A modern A-rated condensing boiler is up to 94 percent efficient.
2. You’re paying more for energy
If your bills keep rising and your usage hasn’t changed, your boiler could be the culprit.
3. Constant breakdowns or repairs
Frequent engineer callouts are a clear sign your system is no longer reliable or cost-effective to maintain.
4. Strange noises
Banging, clanking or whistling can indicate internal issues like limescale build-up or failing components.
5. Uneven heating or hot water
If some rooms are colder than others, or your hot water takes ages to heat, your boiler may be struggling.
6. Yellow flame instead of blue
This can be a serious warning sign of incomplete combustion — which could lead to carbon monoxide leaks.
How Much Does a New Boiler Cost in the UK?
The cost of a new boiler depends on several factors:
- The type of boiler you choose (combi, system, regular)
- The size of your home
- The number of bathrooms or radiators
- Whether it’s a straightforward swap or a more complex re-pipe
- Brand and model
Here’s a rough price guide for a new boiler installation, including parts and labour:
| Boiler Type | Typical Cost (Installed) |
|---|---|
| Combi Boiler | £1,800 – £3,000 |
| System Boiler | £2,000 – £3,500 |
| Regular Boiler | £2,000 – £3,000 |
Want an exact figure for your home?
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What Are the Different Types of Boilers?
Choosing the right boiler depends on your home, your hot water demand, and your existing system. Here are the three main types:
Combi Boilers
A combination boiler provides heating and hot water from one compact unit, with no need for separate tanks or cylinders.
Best for: Smaller homes and flats with one bathroom
Pros: Space-saving, efficient, on-demand hot water
Cons: Not ideal for homes with high hot water usage
System Boilers
These work with a hot water cylinder but don’t need a cold water tank. Ideal for homes with higher hot water demand.
Best for: Medium to large homes with two or more bathrooms
Pros: Good water pressure, great for multiple users
Cons: Takes up more space than a combi
Regular (Conventional) Boilers
These need both a hot water cylinder and a cold water storage tank, usually in the loft.
Best for: Homes with traditional heating systems
Pros: Can cope with high hot water demand
Cons: Takes up more space, slower hot water recovery
Not sure which one suits your home? Our team can help you assess your needs and recommend the best boiler for your setup.
Should I Replace My Boiler Before It Breaks?
Yes. If your boiler is showing signs of inefficiency or is nearing the end of its life, replacing it before it breaks down completely is usually more cost-effective.
Here’s why:
- You avoid emergency callouts and stress
- You can plan the installation at a convenient time
- You’ll immediately benefit from lower bills and better heating
- You won’t be left without heating or hot water during winter
Can I Replace a Boiler Myself?
No. Boiler replacement must be carried out by a Gas Safe registered engineer. It is both dangerous and illegal for anyone unqualified to attempt installation.
Our engineers at Home Exeter are fully certified and experienced in boiler installation for all major brands.
How Long Does It Take to Install a New Boiler?
A like-for-like replacement (e.g. swapping an old combi for a new combi) usually takes one day.
More complex installations — such as changing the boiler type or moving its location — may take two to three days.
Our team always aims to minimise disruption and leave your home clean and tidy.
Does a New Boiler Increase Property Value?
A new boiler can improve your home’s energy rating and appeal to buyers who value an efficient heating system. While it may not increase the sale price directly, it can:
- Speed up the sale process
- Reduce buyer objections
- Help achieve a higher EPC rating
It is also a valuable selling point when renting a property.
FAQs About New Boilers
How long does a boiler last?
Typically 10 to 15 years. Regular servicing can extend its life.
Do I need to replace my radiators too?
Not necessarily, but we may recommend flushing or upgrading older radiators for better performance.
Is finance available for new boilers?
We can discuss flexible payment options. Ask us during your quote process.
What brands do you install?
We work with trusted brands like Worcester Bosch, Vaillant, Ideal, and more.
How soon can I get a new boiler?
In most cases, we can install within a few days of your quote confirmation.
Why Choose Home Exeter for Your New Boiler?
At Home Exeter, we offer:
- Fast, fixed quotes with no hidden fees
- Expert advice from friendly, Gas Safe engineers
- Quick, clean, professional installation
- A range of top-rated boilers to suit every budget
- Local service you can trust
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