Next Day Boiler Installations

If You Need A New Boiler, We Can Help

We offer

Lowest Prices In the UK

5 Star Customer Service 

Wide Choice of Boilers

Zero Deposit Finance

Gas Safe Registered

Fully Insured

We are approved by

The Best Value For Money Boiler You Can Buy

Navien NCB300 28-41kW Combi Boilers with Adey Filter and Salus Quantum Controls

Special Summer Price ONLY £1499 supplied and fitted 

Navien Logo

The 300 series is an amazingly affordable combi boiler that comes with a manufacturers 5 year warranty and is available in three different outputs: 27 kW, 35 kW, and 41 kW. This range of boilers are incredibly affordable combi boilers that are perfect for residential use. Despite being budget-friendly, it is built with the highest quality components and is perfect choice for customers who do not require a long warranty.  

Included with this boiler

Standard horizontal flue

Adey magnetic system filter

Salus Quantum wireless thermostat

Full chemical clean of your heating system

Expert installation by our own Gas Safe engineers

Rated 4.9 out of 5 stars

Navien NCB500 32kW Combi Boilers with Adey Filter and Salus Quantum Controls

Special Summer Price ONLY £1799 supplied and fitted 

Navien Logo

The Navien NCB500 is the larger version of the popular NCB300 boiler, and is considered a mid-range model. This powerful unit boasts a 10-year manufacturer’s warranty as standard, ensuring peace of mind and long-lasting performance. Like its smaller sibling, the NCB500 is built with the highest quality components and is meticulously designed to exceed even the strictest European energy efficiency standards. With its cutting-edge technology, the NCB500 will keep your home warm and comfortable, with inbuilt state-of-the-art flow adjustment valve and auto mixing valve for superb hot water comfort, while providing a more reliable and stable supply of hot water to your taps. Whether you’re upgrading your existing system or in need of a new boiler, the NCB500 is an excellent choice that combines exceptional performance with cost-effectiveness.

This boiler package comes complete with a horizontal flue, magnetic filter, Salus Quantum wireless programmable room stat, full chemical clean of your heating system and expert installation.

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
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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
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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
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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
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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
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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.