NEW BOILER PRICES
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Small Combi Boiler Prices
Small Combi Boilers are often the best solution for smaller homes, perhaps with a single bathroom and a handful of occupants. They handle both hot and central heating systems easily, and help save on space due to a compact design that often allows them to be fitted snugly in kitchen cupboards.
Designed For: Small homes with 1-3 bedrooms / < 7 Radiators / up to 25KW
Price Range: £1695 – £1995
Fitted for £1795*
Pay Monthly from £17.50 Per Month*
+ FREE Magnetic Filter
+ FREE Limescale Reducer
+ FREE Remote Thermostat
+ FREE Carbon Monoxide Detector
+ With NEST £150
+ With HIVE £100
Warranty: 6 Years
W X H X D: 400mm x 724mm x 300mm
A premium A-Rated boiler from a top-tier manufacturer, the Worcester 2000 25KW is perfect for those that want ultra-reliable hot water and heating performance, but want to save on space in their 2-3 bed home with single bathroom.
Fitted for £1695*
Pay monthly from £15.50 per month*
+ FREE GlowWorm Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 6 Years
Dimensions: 626mm x 400mm x 270mm
Flow Rate: 9.9 Lpm
GlowWorm have disrupted the boiler world by produced some truly excellent A-Rated boilers for a fraction of the cost of some of the traditional premium brands. With a handy LCD display and a robust design, GlowWorm Compacts are a stable of OneHeat because we know that when we fit one, it shouldn’t need any more than an annual service for years.
Fitted Price: £1995*
or
Pay monthly from £19.31 per month
+ FREE Vaillant Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 5 or 10 Years*
Dimensions: 700mm x 390mm x 295mm
Super slim and with a 2 year warranty extended to 5 Years because of our Vaillant Advance status, this powerful but compact boiler can run small houses easily for years to come.
Fitted from £1695*
or
Pay monthly from £15.50 pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: Up to 10 Years
Fitted for £1995*
or
Pay monthly from £19.50pcm
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 12 Years
Dimensions: 700mm x 400mm x 700mm
Medium Combi Boiler Prices
Medium Combi Boilers may be suitable for medium sized homes such as semi-detached homes or smaller detached properties. Like all combi boilers they handle hot water and heating from one compact unit in comparison to larger conventional boiler systems.
Suitable For: 3-4 Bedroom homes / 7 – 13 radiators / 28 – 33kw
Price Range: £1795 – £2495
Fitted Price: £1995*
or
Pay monthly from £19.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 7 Years
Dimensions: 720mm x 400mm x 335mm
Another super-slim offering from Vaillant, the Ecotec PRO is Quietmark recognised for smooth running on-top of an ultra-reliable reputation.
Fitted from £1795*
Or
Pay Monthly from £17.50pcm
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 5 Years
Dimensions: 740mm x 418mm x 300mm
Made in Derbyshire, the Betacom comes in a 24KW or 30KW variants and provides years of simple, reliable hot water and heating from a relatively compact design in comparison to other mid-weight combi boilers.
Fitted Price from £2095*
Or
Pay Monthly from £20.70
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 720mm x 400mm x 335mm
The bigger EcoFit Pure 830 packs a lot of punch while retaining a slim profile in comparison to many other mid-range combis, without sacrificing anything.
Fitted for £2295*
or
Pay Monthly from £22.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 724mm x 400mm x 310mm
Worcester Bosch’s mid-weight Greenstar 4000 boasts a wide power range to help save on energy bills, and like the full range is the epitome of style and efficiency.
Fitted for £1895*
or
Pay Monthly from £17.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 740mm x 418mm x 300mm
With a whopping 10 year warranty, GlowWorms reliable Ultimate range offers advanced and high capacity heating for your home.
Fitted £1795*
Or
Pay Monthly from £17.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: Up to 10 Years
Fitted Price: £2595*
or
Pay Monthly from £25.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 700mm x 400mm x 700mm
Packed with innovative technology and able to be paired with smart controls including Amazon Alexa.
Large Combi Boiler Prices
Large Combi Boilers may be suitable for larger detatched homes. With a huge capacity and powerful technology, they can provide large homes with multiple bathrooms. If you need bigger than these large combi boilers then you may need to look at conventional boiler systems that use a hot water cylinder or tank.
Designed for: Large homes with 4+ bedrooms / 13+ Radiators / 33KW+
Price Range: £1995 – £3295
Fitted for £1995*
Or
Pay Monthly from £19.50pcm*
+ FREE GlowWorm Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 740mm x 418mm x 300mm
GlowWorm showing the world they can do both big AND beautiful, their Ultimate 35Kw is the 30Kw’s big sister, making it more suitable for larger detached homes. Much bigger than this and it might be time to look at conventional boiler systems.
Fitted Price £2295*
or
Pay Monthly from £22pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 700mm x 390mm x 295mm
A premium A-Rated boiler from a top-tier manufacturer, the Worcester 2000 25KW is perfect for those that want ultra-reliable hot water and heating performance, but want to save on space in their 2-3 bed home with single bathroom.
Fitted Price: £2495*
Or
Pay Monthly from £24.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 12 Years
Dimensions: 780mm x 440mm x 365mm
Am intelligent filling system helps this large Worcester-Bosch boiler service mid to large sized homes with multiple bathrooms.
Fitted Price: £2695*
Or
Pay Monthly from £26pcm
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 720mm x 440mm x 406mm
Vaillant’s answer to heating large homes in a modern, efficient and stylish manner, the EcoTec Plus is Quietmark Recognised and comes with an impressive warranty.
Fitted Price: £2895*
or
Pay Monthly from £28.50
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 12 Years
Dimensions: 780mm x 440mm x 365mm
The middle brother of the Greenstar 8000 range, this model packs plenty of cost-efficient power into a relatively compact design.
Fitted Price: £2995*
Or
Pay Monthly from £29.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 12 Years
Dimensions: 780mm x 440mm x 365mm
For an extra £100, the Style variant adds an extra touch of class ontop of the Life model’s superb functionality – a great choice for those where the boiler will not be hidden away.
Fitted Price: £3195*
Or
Pay Monthly from £31pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 10 Years
Dimensions: 720mm x 440mm x 600mm
Vaillant’s answer to heating large homes in a modern, efficient and stylish manner, the EcoTec Plus is Quietmark Recognised and comes with an impressive warranty.
Fitted Price: £3295*
or
Pay Monthly from £32.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 12 Years
Dimensions: 780mm x 440mm x 365mm
The largest Worcester Bosch Combi we fit here at OneHeat, this beautiful monster of a combi boasts an impressive 17.9L per minute and looks good doing it.
Fitted from £3395*
or
Pay Monthly from £33.50pcm*
+ FREE Magnetic Filter
+ FREE Carbon Monoxide Monitor
+ FREE Limescale Reducer
+ FREE Digital Thermostat
+ NEST Thermostat: £150
+ HIVE Thermostat: £100
+ TRVs (£10 each)
Warranty: 12 Years
Dimensions: 780mm x 440mm x 365mm
An extra £100 gets you a little more Style on this powerful combi boiler, great for units that won’t be hidden away.
New Boiler Price FAQs
How much a new boiler costs depends on the size of your new boiler requirement as well as the quality of the brand you select, and the costs of fitting, all of which can vary greatly.
In the case of OneHeat, our new boiler prices start monthly at £15.99, thats with a £400 deposit over a 10 year payment term at 9.9%.
This gives our cheapest boiler (as of July 2022 and subject to change) a cash price of £1695 fitted – a GlowWorm Compact 25KW.
However, this would only be suitable for smaller homes, with the range from OneHeat running up to £3295 for a Worcester-Bosch Greenstar 8000 Style 50KW being a potentially suitable Combi Boiler for much larger homes.
Generally speaking, new boilers by themselves may be as cheap as £800, but you may struggle to find a qualified, safe and reliable firm to fit it for you at this price.
The lifespan of a boiler is usually around 15 years, however this can be effected by the quality of the boiler itself, how well the system is maintained and serviced, the water quality from the mains supply, the quality of the install and the usage.
A simple combi-boiler swap should take our experienced engineers less than one working-day in most cases.
Some jobs are larger though, such as swapping out an older non-condensing boiler for a modern combi which may mean work on the pipes and flue.
Some larger conventional systems that utilise a water cylinder or large tank can take 2 days depending on the size and complexity.
With OneHeat, the price you receive includes the cost of fitting the boiler. We can be accurate about this because we will conduct a video survey wherever possible before hand to ensure we understand the installation requirements. In most cases, the cost of your boiler replacement will also include the cost of removing the old boiler too, using our waste disposal licence.
Of course, gas boiler prices are markedly different to other types of heat generation. The gas boiler prices on this page are primarily for combi boilers and require a mains connection, whereas offgrid LPG systems often require a tank fitting too, and a different set of expertise.
On this page you can find prices for combi boilers only. Conventional boilers (which require a heat system) are available on request. Electric boilers are not currently offered by OneHeat.
*All prices are subject to survey and availability. Finance calculated for illustrative purposes only, with 25% deposit, 9.89% APR with a 10 year payment term.
