About Us

Founded in 1970, Warmflow is Northern Ireland’s leading manufacturer of award winning, oil fired boilers with over 45 years experience heating homes across UK & Ireland.

Our award winning range includes oil fired boilers, including the UK & Ireland’s first double A rated combi boiler, hot water cylinders, renewable technologies including Europe’s most efficient ground source heat pump and wood pellet boiler as well as offering a metal fabrication service.

All products are made to the highest standards at our state of the art, 150,000 sqft production facility in Lisburn, Northern Ireland.

We pride ourselves on leading the way in innovation, working with customers to ensure we produce products which are easy to install, made using only the highest quality materials and which deliver tangible benefits and cost savings.

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What our customers say

Fitting warmflow for 15 years

Fitting warmflow Products for 15 years. Over that time they have proven them selves as the market leader in boilers. Efficiency, reliability and an after sales care but will not be beaten. Wouldn’t use anything else

author-image Gerard Mc Shane
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Excellent product and service

We've had the new outside boiler for a couple of months now and is a far superior product that we had before. Simple to use and as it is outside, very quiet and just does the job.

author-image Jeff Boulton
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Quality products

We are regular installers of Warmflow boilers and will continue to promote & fit their products based on quality in design and the extensive warranties backed up with a good after sales support. would recommend to homeowners and installers.

author-image WJP Plumbing & Heathing Limted
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