Short for ‘combination’ boiler, a combi boiler is a compact, all-in-one system that provides both central heating and instant hot water from a single unit. By taking water directly from the mains and heating it only when it’s needed, combi boilers offer an energy-efficient and cost-effective solution that can help reduce energy bills and eliminate the need for separate hot water cylinders or storage tanks. Their space-saving design makes them an ideal choice for modern homes, while reliable on-demand hot water and lower running costs make them one of the most popular and practical heating solutions available.
Whether you’re replacing an older system or upgrading your home’s heating, a combi boiler delivers convenience, efficiency, and long-term value.
A combi-boiler is a compact, small, unit. Saving space and money, they have become the most popular type of heating system in the UK, with combi-boilers being fitted in over 50% of new domestic heating installations.
Another big benefit to having a combi-boiler installed is that they are easy to install, operate and maintain, and because they only heat water on demand rather than storing it, they can help lower your energy bills too.
Combi Boilers are best suited for:
Combi boilers may not suit:
Not sure what type of boiler you need? Our local experts will recommend the right boiler for your home.
With over 30 years’ experience in the boiler industry, we have exceptional relationships with the UK’s leading manufacturers and are therefore able to offer a large range of heating systems for you to choose from, including some excellent combi-boilers.
John Wilkinson Heating Services handles every aspect of your combi boiler installation across the North West, including areas such as Warrington, Manchester, Cheshire and Lancashire. We are the nation’s No.1 Diamond accredited installers of Worcester Bosch central heating systems, and all of our installers are OFTEC Safe certified with plenty of professional experience.
The installation process is quick and simple. Based on the information you give, our fully trained technicians will help you choose the right boiler or heating system for you. Our team of specially trained experts are there on hand to install the boiler for you, quickly and efficiently with minimum disruption.
At JW Heating Services, we combine experience, expertise, and a customer first approach to deliver outstanding heating solutions.
Why customers across the North West choose us:
We understand how important heating and hot water are, and we are committed to delivering dependable service you can rely on.
We’re proud of our reputation across Warrington and the North West. Read our genuine customer reviews and see why homeowners trust us for new boilers, repairs, and servicing.
We make getting a new boiler fitted simple and stress free in 4 simple steps:

Discovery Call
Speak with our friendly, expert team to discuss your home, heating requirements, and budget.

Choose Your Boiler
We’ll recommend tailored boiler options based on your home’s size, usage, and efficiency goals.

Installation
Our Gas Safe Engineers install or replace your boiler safely and with minimal disruption.

Maintenance
We’ll maintain your boiler performance with ongoing care, support, and annual servicing.
Don’t let upfront costs hold you back. We offer flexible combi-boiler finance options, so you can pay monthly and spread the cost of your new boiler installation. Whether you’re looking for 0% interest or longer-term payment plans, our combi boiler finance deals are designed to suit your budget.
We provide combi-boiler installation services across the North West, with our main base located at:
Our team regularly installs combi boilers across:
Warrington, Manchester, Liverpool, Wigan, St Helens, Stockport, Bolton, Preston, Wirral, Oldham, Leigh, Crewe, Chester, Wrexham and surrounding areas.
View all the areas we cover.
Combi-boilers are ideal for small to medium-sized homes with moderate hot water demand. If you have multiple bathrooms or high water usage, a system boiler may be more suitable.
A well-maintained combi-boiler typically lasts between 10–15 years. Regular servicing can help extend its lifespan.
Yes. Because combi-boilers only heat water when needed and don’t store hot water, they reduce energy waste, helping lower your monthly bills.
Most standard combi-boiler installations can be completed within one day. More complex installations, such as converting from a system or regular boiler, may take 1–2 days.
If you are looking for combi-boiler installation in the North West, trusted heating engineers, or a reliable team for your boiler replacement, JW Heating Services is ready to help. From our base in Warrington, we deliver high quality installations across the region with expert advice and exceptional service.
Contact us today to arrange your free quote.
John Wilkinson Heating Services Ltd, Company number 07645851, of Registered Office, Homeserve, Cable Drive, Walsall, West Midlands, WS2 7BN.
Principal office located at 7A The Warehouse Studios, Glaziers Lane, Culcheth, Warrington, Cheshire, WA3 4AQ
Company Registration 01276121. Registered Office Homeserve, Cable Drive, Walsall, England WS2 7BN. Shermin Finance Limited act as a credit broker not a Lender, finance is subject to status and affordability.
John Wilkinson Heating Services Ltd is an Appointed Representative of Shermin Finance Ltd.
JW Heating Services is your trusted local boiler company, providing a range of plumbing and heating services, including new boiler installations, in the Northwest of England and some parts of Wales.
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