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.

Are you looking for a company to carry out chimney lining in Middlesbrough? Our chimney lining installations present a revolutionary way of addressing faulty flues and you can be assured that when you choose Thermocrete of an efficient, safe and durable chimney lining. The average chimney lining system can take 2/3 days to install and can create a lot of mess and debris inside your property. Thermocrete systems are very different to this. We have devised a system that is patented to Thermocrete whereby we line your Chimney from the outside of your building causing minimal disruption and without disturbing the fabric of the building.

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.

What's new?

Visit to survey the beautiful Goldsborough Hall today, stunning fireplace and once home to Queen Mary and the first Lord Harewood! They do bed and breakfast and offer 3 AA rosette dining in amazing surroundings!

Posted on Sep 15, 2020  •  Facebook

Have you had your flue checked recently?

Posted on Apr 03, 2020  •  Facebook

Another late one for the boys but we're getting there. Two down one to go Great work

Posted on Mar 07, 2020  •  Facebook

Thermocrete are looking for skilled workers across the country to join our highly skilled network of installers. If… https://t.co/EwbVKyWf9S

Posted on Oct 31, 2018  •  Twitter

How safe is your chimney? It is vital to have your chimney checked each year for safety reasons such as carbon mon… https://t.co/qNSXfJYX3i

Posted on Sep 13, 2018  •  Twitter

It's starting to get a bit chilly isn't it? Before you start using your wood burner or open fire have you have your… https://t.co/gA03Q4UN8Y

Posted on Sep 10, 2018  •  Twitter

Plan ahead for the winter months... Are you considering having your chimney re-lined? Contact us for a free survey… https://t.co/cgHf3vXezV

Posted on Jul 17, 2018  •  Twitter

We are looking forward to a bank holiday weekend in the sun Where are you watching Tour de Yorkshire this weekend?… https://t.co/Ah1xitz3G2

Posted on May 04, 2018  •  Twitter

Find your local Chimney Lining installer https://t.co/m4j2wat8LS https://t.co/m4j2wat8LS

Posted on Apr 18, 2018  •  Twitter

Looking for something new? A change in career? How about becoming a Thermocrete installer? We are seeking a number… https://t.co/pdgxZmdJCw

Posted on Mar 26, 2018  •  Twitter

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