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Best combi boiler prices
How much does a new combi boiler cost to buy and get installed? We're in a semi-detached with 1 bathroom
Expert Trade Answers
"Basic / budget combi, simple swap (boiler already in place, minimal plumbing changes)
£1,800 – £2,800
Mid-range boiler, perhaps slightly higher output, some work on flue or minor pipework changes
£2,800 – £4,000
More premium boiler / moving it, converting from a different system, more complex installation
£4,000 – £6,000+"
£1,800 – £2,800
Mid-range boiler, perhaps slightly higher output, some work on flue or minor pipework changes
£2,800 – £4,000
More premium boiler / moving it, converting from a different system, more complex installation
£4,000 – £6,000+"
Answered on 20th Sep 2025 - Member since Sep 2025 -
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"It depends on lots of things but for a ballpark figure I’d say £2400"
Answered on 20th Sep 2025 - Member since Apr 2024 -
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"Hi, there are quite a few factors that determine the price of the job.
Is there already a combi boiler installed?
How many radiators are there?
How many rooms in the house?
This will determine the size of the boiler you need. Then there is different manufacturers. There are more premium ones like Baxi and Worcester Bosch, then cheaper like Glow Worm and Mainline."
Is there already a combi boiler installed?
How many radiators are there?
How many rooms in the house?
This will determine the size of the boiler you need. Then there is different manufacturers. There are more premium ones like Baxi and Worcester Bosch, then cheaper like Glow Worm and Mainline."
Answered on 20th Sep 2025 - Member since Mar 2025 -
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"Your looking around £1550-£1650. 5 year’s warranty which can be extended further for an additional cost."
Answered on 20th Sep 2025 - Member since Apr 2021 -
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"Hi Asa, it would be hard to give an accurate price without doing a survey of your property. I would be happy to come out to you to do a survey and provide a free quote. Please message me if you are interested."
Answered on 20th Sep 2025 - Member since Jul 2025 -
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