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. 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 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.

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 current building regulation standard is 270mm thick. We offer a variety of loft quilt products in varying thicknesses to suit your requirements. The quilt is packaged in widths to accommodate most loft and joist spaces.

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. The EPC will show the description of the walls on the 2nd page. Most houses built after 1920 have a cavity. If your house is stone or built prior to 1920, it will likely be solid brick or brick tied which means there isn't a cavity to fill.

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 Boarders right down to North Yorkshire and as far west as Cumbria. 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.

What's new?

We're hiring! Recruiting for a loft and cavity wall insulation installer, please email CV to info@karnheathltd.com

Posted on Feb 23, 2021  •  Twitter

Xmas Opening Hours: We are closed between Monday 21st December and Friday 1st January, 2021. We will re-open on Mon… https://t.co/cLJs8iiQj2

Posted on Dec 18, 2020  •  Twitter

We are now receiving Green Homes Grant vouchers, if you have applied, please look out for them coming through… https://t.co/qn5C5mN5DB

Posted on Nov 27, 2020  •  Twitter

Lockdown 2.0 Update: We're still open and trading as normal with Covid-19 measures in place. To book a survey or fo… https://t.co/dXcohMpSCX

Posted on Nov 05, 2020  •  Twitter

We're hiring! Part-time bookkeeper required, to apply please forward a copy of your CV to info@karnheathltd.com

Posted on Jun 23, 2020  •  Twitter

@samuel_hawksrob Can you please contact our office asap on 0191 2615222 regarding our website, thank you.

Posted on Jun 02, 2020  •  Twitter

In line with the PM's announcement and with immediate effect, we will postpone any domestic installs going forward #staysafe

Posted on Mar 24, 2020  •  Twitter

RIP Terry xx https://t.co/7jnzGISUUu

Posted on Jan 30, 2020  •  Twitter

Please note the business will be closed on Friday 31st January, 2020 as a mark of respect for founder/director Terr… https://t.co/FKsTo9k0Er

Posted on Jan 17, 2020  •  Twitter

We have 100% grant funding through Northumberland, Newcastle, Durham, Carlisle & Eden District councils for loft an… https://t.co/sh3gspsz7R

Posted on Dec 06, 2019  •  Twitter

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