Insulation Specialists

By insulating the loft space in any home will stabilise the temperature throughout the building as well as reducing fuel bills ...
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The highest proportion of heat lost from your home is through the cavity in your walls. Up to 35% can be lost ...
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Draughts through doors, windows and letterboxes can account for up to 25% loss in heat ...
Find out more ...Karnheath Ltd have recently expanded the business into offering fire protection barriers to residential and commercial properties. We can install three different types of Envirograf barriers:-![]()
Envirograf Product 54: Insulated Fire Barrier Curtain
This insulated fire barrier gives up to 77 minutes integrity and insulation. The barrier is 6mm thick and made from layers of impregnated cloth.
Envirograf Product 56: FB30 Fire Barrier Curtain
FB30 is a 1mm thick x 1220mm wide reinforced glass cloth impregnated with red Envirograf® intumescent coating, made to any length. A very robust material which can be used for drop curtains up to 10m. An acoustic version (FB30AC) is available to meet the airborne and impact sound reduction requirements of Document E of UK Building Regulations. FB30AC has 15mm acoustic sponge adhered to the cloth but, for greater acoustic properties, sponge up to 20mm can be used. The barrier can also be used horizontally over a suspended ceiling to give more fire protection or between floorboards and a secondary floor.
Envirograf Product 57: FB70 Fire Barrier Curtain
FB70 is a 1.2mm thick x 1220mm reinforced glass cloth impregnated with yellow Envirograf® insulation coating, giving up to 81 minutes fire integrity. An acoustic version (FB70/AC) approximately 17mm thick is available with Envirograf® sponge adhered to one face of the cloth, meeting the airborne and impact sound requirements of Document E of UK Building Regulations. If more insulation is required, see Envirograf® Product 54.
“May I take this opportunity to thank your company for the professionalism shown towards carrying out the work involved and the pleasant & co-operative manner your men showed throughout. A job well done!!”
Mr & Mrs Andrew & Natalie Wilson,
Peterlee, Co Durham
“I would like to inform you that I found the workmen who did the job very pleasant & courteous & I was completely satisfied with their work.”
Ann Morton,
Wallsend, Tyne & Wear
“Just a note to say thank you for the job of insulation that your men carried out on my bungalow. They were quick and efficient, wasted no time and each man knew his job. I think we are very lucky to have had this done.”
F Scales
Dragonville, Co Durham
“I would like you to know how very pleased and satisfied I am with the work your men did in my home. Everything was done so quickly making the place a lot warmer. They were two very nice pleasant chaps and I am very grateful to them, they worked very quickly and quietly, my grateful thanks to you all.”
Mrs E Gray,
Low Fell, Gateshead
“Just a note to let you know how pleased we were with the draught proofing your firm did for us. Your fitter did a good job and left everything very tidy. Many thanks”
D Patterson,
Hexham, Northumberland
“Your firm recently insulated my loft, and I would like to thank you for the efficient way it was carried out. The workman who carried out the operation was called John and he was certainly a credit to your firm. He was courteous and polite, and did the insulation work with a minimum of disturbance to us, left no mess at all, which in itself is unusual. Both myself and my wife were very impressed with his attitude, and would recommend your firm to anyone.”
Mr R Dickson,
Ponteland, Northumberland