Karnheath
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Karnheath
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.

We also offer cavity insulation extraction should you wish to remove any defective material. Based in Newcastle upon Tyne, we cover the North East, Cumbria, Yorkshire and the Scottish Borders. Accredited members of the government endorsed quality scheme Trustmark demonstrating our commitment to high level customer service and technical know-how.

CHAS health and safety verified. The highest proportion of heat loss from your home is through the cavities in your walls. Up to 35% can be lost indicating how much energy we consume in excess of what we actually require. Karnheath Ltd installs BBA approved product Guardian 37 white glass wool to ensure minimum loss of heat as well as reducing utility costs and improving the energy efficiency of your home.
Services
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.
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 (10)
Jasino
Jasino
Nov 10, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Excellent service. Reliable and professional. Turned up at agreed time and date. Provided an honest assessment of my existing cavity wall insulation completely free of charge. Good integrity demonstrated.
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.
Peter Maughan
Peter Maughan
Sep 24, 2021
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Fantastic service throughout. We had our loft insulated with the Green Grant. Booking and arrangements made easy thanks to Alex in the office who took care of everything and provided us with all the info and arrangements. The installation professionals were brilliant. Very friendly, polite and professional. They really knew their stuff and did an immaculate job. They went the extra mile in providing us with extra information on how it worked with our loft setup. Since installation the house has been significantly warmer and hardly had the heating on. I could not recommend more. Thank you!!
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.
David Pittilla
David Pittilla
Mar 14, 2021
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Had cavity wall insulation installed at my property. Karnheath were
extremely professional throughout, from the initial survey, to discussing the job with the office, and I have to say that Guys who did the work were absolutely excellent.
Top class from initial enquiry to completion of works.
Leanne Selwood
Leanne Selwood
Mar 10, 2021
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Critical: Professionalism, Quality
Came to install loft insulation didnt complete job only covered part of the loft unprofessional workmen swearing and calling other members of staff awful names the language was appalling considering my daughter was at home wouldnt use 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!