Baxi 800 24kW Combi Boiler

Extremely quiet, compact and lightweight, the Baxi 800 Combi can be installed virtually anywhere in your home.

Compact, cupboard-fit model

Only £2,500.00 Fitted
Baxi Logo

Baxi 800 24kW Combi Boiler

Extremely quiet, compact and lightweight, the Baxi 800 Combi can be installed virtually anywhere in your home.

Combi Boiler Icon

Fixed Price Combi Boiler Replacement

Only £2,500.00 Fitted

Why Choose Us?

99% Customer Satisfaction

You can rest assured that you are making the right choice when choosing our company to install your new boiler because we are one of only a few companies in the region that have an independently verified customer satisfaction score in excess of 99%.

Lowest Prices in the UK

We buy and install more boilers than any other independent heating company in the region. This has enabled us to negotiate exclusively low prices with the manufacturers, which we share with all our customers.

Rated 4.9 out of 5 stars

Josh Wrigley
Read More
Brilliant initial installation, very professional & offers peace of mind with 10 Year warranty. Just had my 1st year annual service, received an email reminder on the Wednesday, booked in for the following Tuesday (as requested by myself) & service documentation provided via email whilst technician was on site. Couldn’t recommend Ian & the team highly enough. Great work Smart Plumbing.
Claire Bell
Read More
Ian and Tom did a fantastic job on our full boiler fitting..a full day of hard work along with great customer care and understanding. They both went out of their way to ensure the work was to the highest standard and above and beyond to source any equipment needed. The price I was quoted I paid and at a fantastic rate. Thankyou so much to both Ian and Tom. To any new customers ...I highly recommend Smart Plumbing as the team to choose for your next boiler!
Steve Ebbage
Read More
Smart Plumbing have been great to deal with. Having had my boiler installed by them a year ago, it's recently had its first year service done by them also. I've found them to be very reliable, efficient and trustworthy, which I feel are all important qualities these days. I wouldn't hesitate to recommend them. Excellent!
Janet Dawson
Read More
Thank you Ian and Tom at Smart Plumbing. You were hard working and very efficient. Not only did you replace my boiler you had to move it up into my bathroom. I give you 5 stars. You made it look so easy. To all of you reading this post , if you want to be smart Choose Smart Plumbing . Hard working and very efficient and friendly .👍👍👍
Diane Taylor
Read More
We contacted Ian after a tenant reported a non-working boiler late on a Friday. Communication was fantastic, the boiler was replaced on the Sunday and all warranty paperwork emailed to our office the next day! Not used Smart Plumbing before this job but will definitely be adding Ian to our contractors list!

COVID-Secure Contractor

We have carried out a COVID-19 risk assessment to keep our customers and engineers safe. We have comprehensive PPE, cleaning, handwashing and hygiene procedures in place, and will take all reasonable steps to maintain social distancing at all times. 

Price-Match Promise

We guarantee we will not be beaten on price. In the unlikely event that you receive a lower quote from any other Gas Safe registered installer, we will match their quote and provide you with your first year service free of charge.

COVID-Secure Contractor

We have carried out a COVID-19 risk assessment to keep our customers and engineers safe. We have comprehensive PPE, cleaning, handwashing and hygiene procedures in place, and will take all reasonable steps to maintain social distancing at all times. 

Rated 4.9 out of 5 stars

Josh Wrigley
Read More
Brilliant initial installation, very professional & offers peace of mind with 10 Year warranty. Just had my 1st year annual service, received an email reminder on the Wednesday, booked in for the following Tuesday (as requested by myself) & service documentation provided via email whilst technician was on site. Couldn’t recommend Ian & the team highly enough. Great work Smart Plumbing.
Claire Bell
Read More
Ian and Tom did a fantastic job on our full boiler fitting..a full day of hard work along with great customer care and understanding. They both went out of their way to ensure the work was to the highest standard and above and beyond to source any equipment needed. The price I was quoted I paid and at a fantastic rate. Thankyou so much to both Ian and Tom. To any new customers ...I highly recommend Smart Plumbing as the team to choose for your next boiler!
Steve Ebbage
Read More
Smart Plumbing have been great to deal with. Having had my boiler installed by them a year ago, it's recently had its first year service done by them also. I've found them to be very reliable, efficient and trustworthy, which I feel are all important qualities these days. I wouldn't hesitate to recommend them. Excellent!
Janet Dawson
Read More
Thank you Ian and Tom at Smart Plumbing. You were hard working and very efficient. Not only did you replace my boiler you had to move it up into my bathroom. I give you 5 stars. You made it look so easy. To all of you reading this post , if you want to be smart Choose Smart Plumbing . Hard working and very efficient and friendly .👍👍👍
Diane Taylor
Read More
We contacted Ian after a tenant reported a non-working boiler late on a Friday. Communication was fantastic, the boiler was replaced on the Sunday and all warranty paperwork emailed to our office the next day! Not used Smart Plumbing before this job but will definitely be adding Ian to our contractors list!

Price-Match Promise

We guarantee we will not be beaten on price. In the unlikely event that you receive a lower quote from any other Gas Safe registered installer, we will match their quote and provide you with your first year service free of charge.

Representative Finance Example

Total cost of installation £4,900
Deposit £0
Amount of credit £4,900
120 monthly repayments of £68.31
Total interest £3,297.19
Total amount payable £8,197.19
Representative APR 11.9%

Representative Finance Example

Total cost of installation £4,800
Deposit £0
Amount of credit £4,800
120 monthly repayments of £66.92
Total interest £3,229.90
Total amount payable £8,029.90
Representative APR 11.9%

Representative Finance Example

Total cost of installation £4,400
Deposit £0
Amount of credit £4,400
120 monthly repayments of £61.34
Total interest £2,960.74
Total amount payable £7,360.74
Representative APR 11.9%

Representative Finance Example

Total cost of installation £4,250
Deposit £0
Amount of credit £4,250
120 monthly repayments of £59.25
Total interest £2,859.81
Total amount payable £7,109.81
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,900
Deposit £0
Amount of credit £3,900
120 monthly repayments of £54.37
Total interest £2,624.29
Total amount payable £6,524.29
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,800
Deposit £0
Amount of credit £3,800
120 monthly repayments of £52.98
Total interest £2,557.00
Total amount payable £6,357.00
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,600
Deposit £0
Amount of credit £3,600
120 monthly repayments of £50.19
Total interest £2,422.43
Total amount payable £6,022.43
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,500
Deposit £0
Amount of credit £3,500
120 monthly repayments of £48.79
Total interest £2,355.14
Total amount payable £5,855.14
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,400
Deposit £0
Amount of credit £3,400
120 monthly repayments of £47.40
Total interest £2,287.85
Total amount payable £5,687.85
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,300
Deposit £0
Amount of credit £3,300
120 monthly repayments of £46.00
Total interest £2,220.56
Total amount payable £5,520.56
Representative APR 11.9%

Representative Finance Example

Total cost of installation £3,050
Deposit £0
Amount of credit £3,050
120 monthly repayments of £42.52
Total interest £2,052.33
Total amount payable £5,1023.33
Representative APR 11.9%

Representative Finance Example

Total cost of installation £2,900
Deposit £0
Amount of credit £2,900
120 monthly repayments of £40.43
Total interest £1,951.40
Total amount payable £4,851.40
Representative APR 11.9%

Representative Finance Example

Total cost of installation £2,850
Deposit £0
Amount of credit £2,850
120 monthly repayments of £39.73
Total interest £1,917.75
Total amount payable £4,767.75
Representative APR 11.9%

Representative Finance Example

Total cost of installation £2,750
Deposit £0
Amount of credit £2,750
120 monthly repayments of £38.34
Total interest £1,850.46
Total amount payable £4,600.46
Representative APR 11.9%

Representative Finance Example

Total cost of installation£2,600
Deposit£0
Amount of credit£2,600
120 monthly repayments of£36.25
Total interest£1,749.53
Total amount payable£4,349.53
Representative APR11.9%

Representative Finance Example

Total cost of installation£1,850
Deposit£0
Amount of credit£1,850
120 monthly repayments of£25.79
Total charge for credit£1,244.86
Total amount payable£3,094.86
Representative APR11.9%

Representative Finance Example

Total cost of installation£1,800
Deposit£0
Amount of credit£1,800
120 monthly repayments of£25.09
Total charge for credit£1,211.21
Total amount payable£3,011.21
Representative APR11.9%

Adey Magnaclean Micro Filter

Adey Magnaclean Micro Filter

The Adey Magnaclean Micro magnetic system filter provides exceptional protection against the harmful effects of sludge and other debris, prolonging both the performance & life of your new boiler.

The filter intercepts debris already in the pipework before it reaches the boiler, particularly during system flushing. This prevents the accumulation of sludge, ensuring that your boiler continues to work efficiently.

Adey Micro2 Filter

Adey Magnaclean Micro 2 Filter

The Adey Micro2 magnetic system filter provides exceptional protection against the harmful effects of sludge and other debris, prolonging both the performance & life of your new boiler.

The filter intercepts debris already in the pipework before it reaches the boiler, particularly during system flushing. This prevents the accumulation of sludge, ensuring that your boiler continues to work efficiently.

Salus Quantum Thermostat

Salus Quantum Thermostat

The Salus Quantum thermostat is both sleek and stylish, and is the slimmest on the market at only 10mm thick. It has a long battery life, thanks to its state-of-the-art built-in rechargeable lithium battery.

Control either locally or from anywhere via Smartphone, Tablet or PC. This feature-packed thermostat ensures that you have perfect control over your heating system.

Tado Smart Thermostat

Tado Smart Thermostat

The Tado Smart Thermostat is the smart way to control your heating whilst saving energy.

The thermostat takes care of your home climate and helps you save energy with features including weather adaptation and open window detection. The smartphone app enables you to intuitively control your heating from anywhere, or control your heating using your voice by connecting the thermostat to your smart speaker.

Worcester Bosch Comfort II RF

Worcester Bosch Comfort II RF Wireless Programmable Room Thermostat

The Worcester Bosch Comfort II RF comprises an RF key which plugs into the boiler, plus a wireless programmable thermostat that controls your heating times and temperature.

The warranty period of the Comfort II RF matches that of a Worcester Bosch Greenstar boiler when it is purchased and installed at the same time.

Worcester Bosch Comfort+ II RF

Worcester Bosch Comfort+ II RF Wireless Programmable Room Thermostat

The Comfort+ II RF comprises an RF key which plugs into the boiler, plus a wireless programmable thermostat that controls your heating times and temperature.

The warranty period of the Comfort+ II RF matches that of a Worcester Bosch Greenstar boiler when it is purchased and installed at the same time.

Atag Comfort Pack

Atag Comfort Pack

The Atag Comfort Pack pack maximises system efficiency and circulation in your hot water system.

Includes Atag filter, electrolyte scale reducer, central heating system protector and central heating universal cleaner to protect your new boiler from the harmful effects of sludge, and prolong both the performance & life of your new boiler and heating system.

Atag One Smart Controller

Atag One Wireless & Internet-Enabled Programmable Room Thermostat

The OneZone is as easy to use as it is stylish. The clever communication system means that not only can you control your hot water and heating when you’re on the move, you can also heat different areas of your home to the temperature you want, exactly when it suits you. So, if you’re planning on spending the day in the kitchen, there’s no need to heat your upstairs rooms.

The ONEZone app gives you real-time information about how much energy you’re using to help you save energy and reduce your heating bill.

Worcester Bosch Magnetic System Filter

Worcester Bosch Magnetic System Filter

The Worcester Bosch magnetic system filter is specifically designed to combat the damaging effects of system debris and pollutants. It has a large capacity for collecting heating system debris & a high first-pass collection rate.

The filter combines magnetic and non-magnetic filtration to collect a wide range of system debris. This prevents the accumulation of sludge, ensuring that your boiler continues to work efficiently.

Hive Active Heating

Hive Active Heating

The award-winning Hive Active Heating thermostat is wireless and internet-enabled, and works seamlessly with your existing heating system. Control it with your voice or from your phone; so wherever you are, it’s easy to make sure your home’s warm when it needs to be, without wasting energy.

Set schedules, get alerts if you leave the heating on and save money by never heating an empty home.

Additional or Non-Standard Pipework

Non-Standard Pipework Diagram

If your boiler is not located directly beside an external wall, or your property is a more unusual shape, additional pipework may be required to extend the flue. This could include components such as additional sections, bends, etc.

The flue terminal is included as standard; additional or non-standard pipework is charged at cost+10%. 

As the work involved can vary greatly, we need more information from you to be able to quote accurately for installations requiring additional or non-standard pipework; please call us on 01484 940930.

Vertical Flue

Vertical Flue Diagram

The flue is the pipe from the boiler to the outside of the house that removes waste gases from the boiler.

A vertical flue tends to be found in homes where the boiler isn’t on an outside wall or when the property is a more unusual shape, making it more difficult for the flue to to run through an external wall into the open air.

As the work involved can vary greatly, we need more information from you to be able to quote accurately for installations with a vertical flue; please call us on 01484 940930. 

ESi Controller

ESi Wireless Programmable Room Thermostat

This easy to use wireless programmable room thermostat from ESi increases boiler efficiency.

As well as offering flexible programmes to control the temperature in your home, the controller also features a large backlit LCD screen and user friendly function buttons.

Salus RT520RX

Salus RT520RX Wireless Programmable Room Thermostat

The RT5200RF from Salus Controls is a stylish and accurate 5/2 or 7 day wireless programmable room thermostat with a large, easy to read Liquid Crystal Display (LCD) screen. 

This model comes with a 5 year warranty and helps increases boiler efficiency. 

Boiler Conversion

Boiler with Cylinder Diagram

The fixed price quoted is to replace an existing combi boiler with a new combi boiler.

Due to the large number of variable factors involved in the conversion of a conventional boiler with cylinder to a combi boiler, we would view your existing heating system before quoting a price. As a guide, a conversion adds £500-800 to the cost.

Standard Horizontal Flue

Horizontal Flue Diagram

The flue is the pipe from the boiler to the outside of the house that removes waste gases from the boiler.

A horizontal flue is the most common type, found in the vast majority of UK boiler installations.

A standard horizontal flue goes straight out through the external wall behind the boiler rather than upwards through the roof, without any additional pipework.

Smart System Filter

Smart System Filter

The Smart system filter protects your new boiler from the harmful effects of sludge, and prolongs both the performance & life of your new boiler.

The filter intercepts debris already in the pipework before it reaches the boiler, particularly during system flushing. This prevents the accumulation of sludge, ensuring that your boiler continues to work efficiently.

Ideal Halo RF

Ideal Halo RF Wireless Programmable Room Thermostat

The Ideal Halo RF is a stylish wireless programmable room thermostat from Ideal, designed specifically to work with your Ideal boiler.

The thermostat is packed full of easy-to-use features such as flexible scheduling, override and holiday mode that provide simple heating control, both increasing boiler efficiency and providing you with a higher level of control over your energy usage.

Ideal System Filter

Ideal Magnetic System Filter

The magnetic Ideal System Filter protects your new boiler from the harmful effects of sludge, boosts the efficiency of your boiler and reduces running costs.

This filter is designed to optimise your boiler’s operation by removing suspended black iron oxide impurities from the water passing through it. Even a small build-up of this debris results in substantial efficiency loss and energy wastage, causing the system to perform inadequately and cost more to run and maintain.

Representative Finance Example

Total cost of installation£2,800
Deposit£0
Amount of credit£2,800
120 monthly repayments of£36.20
Total charge for credit£1,544
Total amount payable£4,344
Representative APR9.9%

Representative Finance Example

Total cost of installation£2,700
Deposit£0
Amount of credit£2,700
120 monthly repayments of£34.91
Total charge for credit£1,489.20
Total amount payable£4,189.20
Representative APR9.9%

Representative Finance Example

Total cost of installation £2,600
Deposit £0
Amount of credit £2,600
120 monthly repayments of £33.62
Total charge for credit £1,434.40
Total amount payable £4,034.40
Representative APR 9.9%

Representative Finance Example

Total cost of installation£2,500
Deposit£0
Amount of credit£2,500
120 monthly repayments of£32.33
Total charge for credit£1379.60
Total amount payable£3,879.60
Representative APR9.9%

Representative Finance Example

Total cost of installation£2,300
Deposit£0
Amount of credit£2,300
120 monthly repayments of£29.74
Total charge for credit£1,268.80
Total amount payable£3,568.80
Representative APR9.9%

Representative Finance Example

Total cost of installation£2,200
Deposit£0
Amount of credit£2,200
120 monthly repayments of£28.45
Total charge for credit£1,214
Total amount payable£3,414
Representative APR9.9%

Representative Finance Example

Total cost of installation£2,100
Deposit£0
Amount of credit£2,100
120 monthly repayments of£27.15
Total charge for credit£1,158
Total amount payable£3,258
Representative APR9.9%

Representative Finance Example

Total cost of installation£2,000
Deposit£0
Amount of credit£2,000
120 monthly repayments of£25.86
Total charge for credit£1,103.20
Total amount payable£3,103.20
Representative APR9.9%

Representative Finance Example

Total cost of installation£1,900
Deposit£0
Amount of credit£1,900
120 monthly repayments of£24.57
Total charge for credit£1,048.40
Total amount payable£2,948.40
Representative APR9.9%

Representative Finance Example

Total cost of installation£1,750
Deposit£0
Amount of credit£1,750
120 monthly repayments of£22.63
Total charge for credit£965.60
Total amount payable£2,715.60
Representative APR9.9%

Representative Finance Example

Total cost of installation£1,600
Deposit£0
Amount of credit£1,600
120 monthly repayments of£20.69
Total charge for credit£882.80
Total amount payable£2,482.80
Representative APR9.9%

Representative Finance Example

Total cost of installation£1,500
Deposit£0
Amount of credit£1,500
120 monthly repayments of£19.40
Total charge for credit£828
Total amount payable£2,328
Representative APR9.9%

Representative Finance Example

Total cost of installation £1,450
Deposit £0
Amount of credit £1,450
120 monthly repayments of £18.75
Total charge for credit £800
Total amount payable £2,250
Representative APR 9.9%