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Thermocrete
It might surprise you to know that Alan is still the MD and is the person you are likely to be speaking to if you call. 45 years on and he is still at work everyday, in the thick of it! Thermocrete are a trusted supplier & installer of chimney lining systems that will stand the test of time and we operate throughout the UK (find your local chimney lining engineer).

We are Gas Safe Registered which means you can be assured that an experienced and fully qualified chimney engineer will be installing your chimney lining system. We are a family business and we manufacture our own chimney linings and have done so for over 40 years. We have thousands of satisfied customers, read some of our customer reviews, At Thermocrete we install around 5000 chimney linings each year.
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The basic concept of the system is simple but extremely effective. A rubber former is inserted precisely in position through the entire length of the flue. Special techniques are used to keep the former centralised, even if the flue has a 45° bend. Thermocrete B2c material is pumped into the flue from the top of the chimney stack filling all voids, cracks and damaged joints.
Are you looking for a stainless steel flue liner? We can help. Thermocrete supply a wide range of stainless steel flue liners in Leeds, Bradford, York, Harrogate, Cumbria, Manchester, Liverpool, Bolton, Wigan, Huddersfield, Wakefield, Halifax, Doncaster, Barnsley, Sheffield & beyond.

We can supply you with the best stainless steel chimney liner for your needs, whether it be a flexible stainless steel chimney liner or a rigid stainless steel chimney liner.We have been in the chimney business for over 40 years and you can rely on us to give you the best solution for your chimney.
All appliances that use gas, oil wood or smokeless fuels all produce Carbon Monoxide. It can be potentially fatal and even low levels of the poison can cause lasting damage to your health which is why it is vital that you take the correct measures to ensure your chimney is safe.

Of course there can be obvious signs that a chimney repair is required such as excessive soot, debris falling, fumes, problems with the fire drawing poorly and overheating chimney walls.The inside of the chimney with age and use can become corroded and then there becomes a risk of carbon monoxide leaking into your home.
FAULTY FLUES ARE DANGEROUS - if you suspect a faulty flue CALL OUR FREE PHONE NOW 0800 0345 442. The sulphuric acid attacks the masonry/brickwork within the chimney and eats into the mortar causing joint leakage and eventually the total collapse of the chimney-stack. All appliances that use gas, oil wood or smokeless fuels all produce Carbon Monoxide.
THERMOCRETE, the UK's largest chimney lining specialist are looking for select installers in areas throughout the UK to join in the success of our highly skilled network of 'CHIMNEY CHAPS' (Installers). Northern Chimney Lining Systems Ltd, is the name of the company operating under the registered name of "THERMOCRETE CHIMNEY LINING SYSTEMS."
Reviews (3)
Chris Barton
Chris Barton
Jun 24, 2020
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Excellent service. Had my chimney lined by Thermocrete. Very professional from start to finish. Very clean and tidy work ethic.
Would highly recommend.
Mike Smith
Mike Smith
Nov 22, 2018
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Had chimney relined with Thermocrete 24 years ago, very clean process and chimney still sound after all this time. About to have another chimney relined and price quoted is very good value.
Lisa Koi
Lisa Koi
Dec 11, 2017
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Excellent, reliable and honest company. Really impressed and would recommend.