Karnheath
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Karnheath
Karnheath Ltd is a specialist insulation contractor supplying and installing loft and cavity wall insulation throughout the North East. We also offer cavity extraction services should the existing material be compromised. Founded in 1978, Karnheath have a wealth of experience in energy efficiency and no job is too big or too small.

Karnheath Ltd have worked with government initiative schemes and local councils to provide independent advice on low cost energy services to home owners, tenants, major house builders and commercial properties throughout the North East. Karnheath Ltd operate as far North as the Scottish Borders right down to North Yorkshire and as far West as Cumbria.
Services
Karnheath Ltd are a family run provider of insulation services operating throughout the North East dedicated to keeping your properties warm, energy efficient and best of all saving you money. We supply and install loft and cavity wall insulation to domestic properties, commercial premises as well as new build sites.
Whether you're a resident, business or building contractor, our wealth of experience of over 30 years in energy efficiency and insulation services can help you reduce costs as well as contribute towards a greener planet through government initiative schemes. Karnheath Ltd operate as far north as the Scottish Borders right down to North Yorkshire and as far west as Cumbria.
Up to 25% of heat can be lost through the roof of a house that doesn't contain any loft insulation. By insulating the loft space, the temperature throughout the building will stabilise as well as reducing fuel bills and the building's carbon footprint. Average utility bill savings on a detached house with a gas boiler can be up to 250 per year.
The highest proportion of heat loss from your home is through the walls. Up to 35% can be lost indicating how much energy we consume in excess of what we actually require. Average utility bill savings on a detached house with a gas boiler can be up to 280 per year. If you're unsure if your walls have been insulated, you can view your Energy Performance Certificate here.
Karnheath has many years experience supplying loft and cavity insulation to new build sites and commercial premises. Please see below just some of our clients. Karnheath Ltd is based in Newcastle upon Tyne, Tyne and Wear however our teams operate throughout but not limited to the North East, Cumbria, Yorkshire & the Scottish borders.
Reviews (6)
Ashleigh Cullen
Ashleigh Cullen
Oct 29, 2021
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Critical: Professionalism, Quality
Shambles of a company, carried out cavity wall insulation - I'm not convinced they installed correctly, the mess left was horrific, damaged items, threw garden furniture across the garden, do not make any effort to reduce dust or clean up after themselves. Customer service is even worse. Cowboys - avoid at all costs.
Jamie Shanley
Jamie Shanley
Apr 26, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
Karnheath carried out a survey and then installed additional loft insulation.
Very efficient from the initial survey, swift turnaround on paperwork and then installation which was done to a high standard and with very little mess.
Highly recommended.
Leigh Miller
Leigh Miller
Apr 12, 2021
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I had Karnheath provide Loft insulation, which they carried out with the utmost of professionalism.
Nothing was an issue, it was a very easy process.
Would have no issue using again.
Peter Hopkins
Peter Hopkins
Mar 07, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
Excellent - difficult to fault to be honest. Provided a quote quickly and efficiently, did the job to a very high standard when requested. Very professional and organised outfit.
Stephen Carty
Stephen Carty
Nov 19, 2020
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Fantastic customer service, turned up spot on time, did a fantastic job, very sociable and polite guys too, and ceaned up after themselves.
Overall a great experience and would thoroughly recommend to anyone
L. M.
L. M.
Sep 13, 2020
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Positive: Professionalism, Responsiveness
I would just like to say a Big Thank You to Oliver who put our minds at ease over our cavity wall insulation. Company responded extremely quickly and without fuss. Wishing you many more years of success!