Business Details
48 Years
experience
Expert Insulation Services in Newcastle upon Tyne
Established in 1978, Karnheath is a family-run insulation contractor serving domestic and commercial clients across the North East, Cumbria, Yorkshire, and the Scottish Borders. With over 40 years of experience, we specialise in cavity wall insulation, loft insulation, cavity wall extraction, and loft boarding services. Our commitment to quality is evidenced by our Trustmark accreditation and CHAS health and safety verification.We offer free, no-obligation surveys and have secured grant funding for numerous projects, working with government initiatives and major construction firms. Our team prioritises energy efficiency, cost savings, and environmental responsibility, delivering tailored solutions for properties of all sizes.
Services
Cavity Wall Insulation
Loft Insulation
Commercial Insulation
Cavity Wall Extraction
Loft Boarding
Details
- Year established: 1978
Highlights and features
- Over 40 years of experience in insulation services
- Secured 100% grant funding for eligible homeowners
- Free, no-obligation surveys available
- Trustmark accredited for quality assurance
- CHAS health and safety verified contractor
Associations and certifications
- Trustmark
- CHAS
What people say
Efficient surveys
Courteous workmen
No mess left
Significant warmth improvement
Prompt service
Services
Cavity Wall Insulation
Cavity wall insulation reduces heat loss through walls by up to 35%. We install BBA-approved Instafibre White Wool mineral glass fibre, improving energy efficiency and lowering utility bills. This service stabilises indoor temperatures while meeting building regulations.
Loft Insulation
Loft insulation prevents 25% heat loss through roofs. We use Knauf and Isover products to meet the 270mm building standard, reducing fuel bills and carbon footprints. Includes draughtproofing and pipe lagging for complete thermal efficiency.
Cavity Wall Extraction
Cavity wall extraction removes defective insulation using specialist equipment. We extract materials like rockwool and polystyrene beads, replacing bricks and repairing structures. Ideal for properties with damp or damaged cavity insulation.
Commercial Insulation
Commercial insulation services cater to new builds and existing premises. We supply and install cavity wall and loft insulation for large-scale projects, working with major contractors like Galliford Try and Engie to meet energy efficiency standards.
Loft Boarding
Loft boarding creates accessible storage spaces without compromising insulation. We install raised platforms to maintain energy efficiency, offering optional ladders and lighting. Most installations complete within 1-2 days for residential properties.
Questions
What insulation services do you offer?
We provide cavity wall insulation, loft insulation, cavity wall extraction, commercial insulation, and loft boarding services for domestic and business clients.
Are surveys free of charge?
Yes, we offer free, no-obligation surveys to assess insulation needs and eligibility for grant funding.
Can I get grant funding?
Eligible homeowners may secure 100% grant funding through government schemes like ECO 4 for qualifying insulation projects.
Do you work outside the North East?
We operate throughout Cumbria, Yorkshire, and the Scottish Borders in addition to the North East region.
How long does installation take?
Most residential installations complete within 1-2 days, with commercial projects varying based on scale and complexity.
Are you Trustmark accredited?
Yes, we hold Trustmark accreditation and CHAS health and safety verification for quality assurance.
