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Business Details
19 Years
experience
Trusted Home Insulation Grants Provider in the UK
Established in 2007, FreeInsulation has built a reputation as a trusted intermediary connecting UK homeowners and tenants with approved insulation installers. Our team brings extensive experience from the home insulation, heating, and renewable energy sectors, ensuring clients access government-backed schemes like ECO4 and GBIS. We prioritise quality by rigorously vetting installers for compliance with Trustmark, PAS2035, and product guarantee agencies, ensuring high standards of workmanship and customer care.

Our commitment to transparency is reflected in our GDPR-compliant data practices and free, no-obligation surveys. With over 160,560 ECO4 projects submitted by February 2025, we demonstrate industry leadership in reducing carbon emissions and fuel poverty while delivering verifiable energy savings through cavity, loft, and solid wall insulation solutions.
Services
Cavity Wall Insulation Loft Insulation Room in Roof Insulation External Wall Insulation Internal Wall Insulation
Details
  • Year established: 2007
Highlights and features
  • Established in 2007 with industry-experienced staff
  • Fully vetted installers meeting Trustmark and PAS2035 standards
  • Guarantee compliance with CIGA, SWIGA, and GDGC requirements
  • Registered Data Controller under GDPR for secure information handling
  • Specialist knowledge of ECO4, GBIS, and Warm Homes Plan eligibility
Associations and certifications
  • Trustmark
  • British Board of Agrment
  • Cavity Insulation Guarantee Agency
  • Solid Wall Insulation Guarantee Agency
  • GDGC
  • Kinnell Eco
What people say
Efficient service Helpful men Good job done Quick and easy No mess
Services
Cavity Wall Insulation
Cavity wall insulation reduces heat loss by filling gaps between brick layers with mineral wool, polystyrene beads, or foam. Suitable for properties built between 1924-2005, it saves up to 405 annually while lowering carbon emissions. Grants cover 75-100% of costs through ECO4 or GBIS schemes for eligible households.
Loft Insulation
Loft insulation prevents heat escaping through roofs using mineral wool blankets installed to 270mm depth. Ideal for properties with less than 100mm existing insulation, it saves up to 150 yearly. Fully covered by grants for qualifying low-income households or those receiving means-tested benefits.
External Wall Insulation
External wall insulation applies insulating boards to solid brick or concrete walls, improving EPC ratings and saving up to 260 annually for semi-detached homes. Grants cover 25% of costs for eligible properties in Council Tax bands A-E, with priority for low-income and vulnerable households.
Internal Wall Insulation
Internal wall insulation fits boards to solid walls, reducing heat loss by 25-35%. Suitable for properties unsuitable for external insulation, it saves 140-700 yearly. Fully funded through ECO4 for households earning under 31,000 or receiving qualifying benefits like Universal Credit.
Room in Roof Insulation
Room in roof insulation installs boards between rafters in converted loft spaces, saving up to 400 annually. Available through ECO4 for properties with EPC ratings D-G, requiring fixed staircases and minimal existing insulation. Grants cover full costs for eligible pensioners and low-income applicants.
Questions
Is home insulation completely free?
Yes for qualifying households receiving benefits or earning under £31,000 through ECO4/GBIS schemes, with minor contributions sometimes required based on property size.
How do grants reduce insulation costs?
Energy suppliers fund installations under government carbon reduction obligations, covering 75-100% of costs for eligible applicants through ECO4, GBIS, or Warm Homes Plan.
Can tenants apply for insulation grants?
Private tenants qualify with landlord permission, while council tenants should contact local authorities directly for eligibility assessment.
What guarantees apply to installations?
Cavity and solid wall insulation include 25-year guarantees from CIGA, SWIGA, or GDGC, with loft insulation offering optional 2-year financial protection mechanisms.
How long does insulation installation take?
Cavity walls take 2-3 hours, loft insulation 1-1.5 hours, while external/internal wall projects require 1-5 days depending on property size and complexity.