Knowing how much is it to install a combi boiler can help you avoid being ripped off by boiler installers. Combi boilers are hassle-free and the easiest to install. A combi boiler provides both hot water and central heating simultaneously. That’s why combi boilers are the most used boilers in the UK.
Whether it be a gas combi boiler, LPG, oil, or electric combi boiler, these boilers are highly energy-efficient. Without a detailed cost breakdown, you can’t estimate how much a combi boiler may cost!
Here, we’ve covered the combi boiler installation cost in detail. Without any further delay, let’s jump into the details.
How much does it cost for a combi boiler?
Combi boilers have a variety of model types, fuel types, sizes, etc. We often get questions from you about how much exactly a boiler installation costs, especially a combi boiler. Unfortunately, there is no certain amount. It varies depending on many factors.
Let’s shed light on the factors that affect the cost of combi boilers:
Fuel Type
Combi boilers come in four fuel varieties: natural gas, LPG, oil, and electrical.
- Gas Combi Boiler:Â Uses natural gas and is connected to the gas network.
- LPG Combi Boiler:Â Uses liquified petroleum gas (LPG) with a gas cylinder.
- Oil Combi Boiler:Â Uses oil that comes in an oil tanker.
- Electrical Combi Boiler:Â It uses electrical power to heat water and work as the central heating system.
Fitting Location
Relocating a combi boiler or setting a new boiler requires pipework and other fitting work to be done. All of this prep work increases the cost.
Fitting a combi boiler in an existing location doesn’t require any pipework. Positioning is very important. Locate your combi boiler wisely.
Existing Boiler Type
Changing the boiler type to a combi boiler can be costly. A combi-to-combi boiler exchange costs less than replacing a system boiler or a conventional boiler with a combi boiler.
Also, replacing an oil combi with a gas combi costs you more than replacing a gas combi with a gas combi boiler.
Time of the Year
Booking boiler installers on weekends or during the peak season will cost you a lot due to the increasing demand. If you want a reasonable price, you should pick weekdays or off-seasonal days in summer or spring to install a combi boiler.
Warranty Duration
A combi boiler usually comes with a 10-15-year warranty. If your warranty expires, the installation cost increases. Wondering how much is it to install a combi boiler? We’ll describe that later in the article.
Accessibility
Combi boilers carry their functional parts in their bodies. There is no extra storage tank or cylinder with a combi boiler. However, if you position your combi boiler in a hard-to-reach place, it’ll always be costly to repair or replace.
Additional Pipework
Sometimes, additional pipework may be required when installing a combi boiler. This may be necessary if the existing pipe has leaks or is too old. The pipework will increase both supply and labour costs.
Complexities
Every installation has its own story. Your situation will not match with others. There can be complexities. The more scope of work and complexity there is, the more it will cost.
Area
The cost of installing a combi boiler depends on your location as well. The labour cost may increase if you’re located in England or South London.
Combi boiler installation cost
Combi boiler installation is highly cost-effective. However, the cost can vary depending on fuel type, home size, etc. Let’s break it down!
Installation cost by fuel type
Combi boiler installation cost varies depending on the fuel type. For example, a gas combi boiler runs on a natural gas connection, whereas an oil combi boiler runs on oil from an included oil tanker.
Let’s break down combi boiler installation costs based on fuel types:
| Combi Boiler, including Fuel Type | Average Cost |
| Gas Combi Boiler | £1600-£5000 |
| Oil Combi Boiler | £3500-£6000 |
| Electric Combi Boiler | £2200-£6800 |
Installation cost by home size
A UK home may have one, two, three, four, or more bedrooms. However, the larger the home, the more efficient a combi boiler it will need.
Now, let’s look at the combi boiler installation cost by home size:
| Number of Bedrooms | Average Boiler Cost | Installation Cost |
| 1-2 bedrooms (18-27kW) | £600-£2000 | £1500 |
| 3-4 bedrooms (28-35kW) | £800-£3000 | |
| 5+ bedrooms(35kW+) | £800-£4000 |
Installation cost of a combi boiler replacing another boiler
A combi boiler has been pretty popular across UK households. To ensure efficiency, people are switching their existing boilers to combi boilers.
It can be a combi to combi replacement, changing a combi boiler’s location, installing a combi boiler, replacing a system boiler or a conventional boiler, etc.
Check out these approximate costs:
| Situation of Replacing | Average Cost |
| Combi boiler to Combi boiler replacement in the exact location | £500-£800 |
| Installing a Combi boiler in a new location | £1500-£1800 |
| Installing a Combi boiler, replacing a system boiler | £2000-£2800 |
| Installing a Combi boiler, replacing a conventional boiler | £2500-£3000 |
Additional costs of a combi boiler installation
A combi boiler may demand some features for extra efficiency. There can be some addons such as thermostats, power flushing, magnetic filter, flue pipe, etc.
Let’s delve into the additional costs:
| Addons | Average Cost |
| Thermostat (Wi-Fi-enabled heating controller) | £150-£200 |
| Powerflushing | £450-£800 |
| Magnetic Filter | £100-£300 |
| Flue pipe | £300-£600 |
How long does it take to install a combi boiler?
While analysing how much is it to install a combi boiler, know how long a boiler installation takes as well. The duration of installation of a combi boiler varies depending on the position and boiler type.
Are you installing a new combi boiler, replacing the old combi in the same position, relocating the boiler, or upgrading a boiler to a combi boiler? Let’s have an approximate idea about how long it takes to install!
| Scenario/Situation | Approximate Duration |
| Installing a New Combi Boiler | 1-2 days |
| Relocating the combi boiler to a new position | 1.5-2 days |
| Replacing an old combi boiler with a new one | 4-6 hours |
| Upgrading an existing boiler to a combi boiler | 2-3 days |
Pro tips to save money when installing a combi boiler
Here are some essential tips to save money when installing a combi boiler:
Compare quotes
Get multiple quotes from some of the best boiler companies. Ask for quotes from both local and national boiler service providers. Compare prices with services. Choose your convenient boiler service provider.
Install in spring or summer
If you are looking for a cost-effective boiler installation, install it in off-peak seasons. During summer or spring, boiler service providers cost less than at other times due to low demand. It saves money and allows installation without a rush.
Check warranty
Popular boiler service providers often provide a warranty on their services. If you have the warranty, it will save on boiler repair costs.
Choose the perfect boiler
A large or oversized boiler will increase the utility bill. On the other hand, smaller boilers may not be able to cover the entire heating system. Choose the boiler size that is convenient for your home.
Buy a boiler yourself separately
It is wise not to leave your boiler-buying job to the service providers. Go to your local boiler shops and buy a boiler at a cost-effective rate.
Look for government grants or schemes
You can get an ECO4 or boiler upgrade scheme. If you qualify for the terms, the government grant can host the scheme.
Search local boiler services
To save money, you should hire boiler service providers near you in your region. Local boiler service providers know your area’s conditions and cost less than national companies.
Where can I find the best boiler installers in the UK?
You can find the best local installers in your near-me searches. At Smart Plumbing and Heating Bristol, we have well-trained and certified gas engineers who efficiently install boilers and effortlessly ensure a leak-free setting.
You can contact us anytime. Feel free to email us with any queries.
Final words
Installing a combi boiler is not a big deal. Emergencies have no fixed time to arrive. Before you face such a situation, know how much is it to install a combi boiler and how long it takes. Enjoy the dual-functioning combi boiler for both hot water and your house’s heating system.
Whether you’re using a gas, oil, or electrical combi boiler, energy efficiency is assured. Make your cosy days feel more like home with the warmth of combi boilers.
Frequently Asked Questions (FAQs) on Combi Boiler Installation Cost
How much does it cost to have a combi boiler fitted?
The cost of fitting a combi boiler in the UK ranges from £500__£6800. A combi boiler installation cost varies depending on factors such as the number of bedrooms, the size of the boiler, the complexities, the time of the year, etc.
Is it worth installing a combi boiler?
Yes, Absolutely. A combi boiler is energy efficient. It reduces the heating bills and saves on extra utility bills.
How much does labor cost to replace a boiler?
Boiler service providers charge labor costs hourly or daily. The total labor cost to replace a boiler can be £100-£200 hourly.
How much is a new boiler in the UK?
A new combi boiler costs around £600-£3600 in the UK, a regular boiler costs around £500-£3200, and a new system boiler costs around £600-£3000.
How long should a boiler last?
A boiler usually comes with a 10-15-year warranty. You can easily run a boiler for more than 10 years.
