Multifoil Insulation Across the UK
Multifoil insulation like YBS SuperQuilt, SuperFoil and ThermaWrap delivers outstanding thermal performance in a fraction of the thickness of traditional insulation — making it one of the most effective solutions for UK homes.
Arctic Insulation installs foil quilts and multifoil systems across the UK. Whether it's a loft conversion, a rafter upgrade, a garden room or a full roof insulation project — we deliver professional results with free surveys nationwide.
What Is Multifoil Insulation?
Multifoil insulation — also known as foil quilts or reflective insulation — uses multiple layers of aluminium foil separated by wadding to reflect radiant heat back into your home. Unlike traditional bulky insulation, multifoil products are ultra-thin yet deliver exceptional thermal performance.
Leading products include YBS SuperQuilt, SuperFoil SF19 and ThermaWrap — all BBA-certified and widely used across the UK. These foil quilts are particularly effective in the UK's varied climate where heat loss through roofs can account for up to 25% of total energy waste.
YBS SuperQuilt
19-layer multifoil with market-leading thermal performance at just 40mm thick
SuperFoil SF19
High-performance reflective insulation ideal for roofs, walls and floors
ThermaWrap
Versatile foil insulation range for lofts, sheds and outbuildings
BBA Certified
All products carry independent BBA certification for Building Regulations compliance
Why Multifoil Insulation for UK Homes
The UK has one of the oldest and most diverse housing stocks in Europe, with millions of properties losing heat through poorly insulated roofs. Rising energy costs and tightening Building Regulations make effective, space-saving insulation more important than ever.
"With over 29 million homes in the UK and energy prices at record levels, multifoil insulation offers one of the best returns on investment. Products like SuperQuilt and SuperFoil deliver outstanding performance in a fraction of the space — making them the smart choice for UK homeowners."
Benefits of Multifoil Insulation
Why homeowners across the UK are choosing foil quilts and reflective insulation.
Multi-Layer Technology
Products like YBS SuperQuilt use up to 19 layers of foil and wadding to reflect heat in both directions — keeping your home warm in winter and cool in summer.
Ultra-Thin Profile
At just 40mm thick, multifoil insulation fits where traditional insulation can't. Perfect for loft conversions where every centimetre of headroom counts.
Year-Round Performance
Reflective insulation works in both directions. In the UK's cold winters it keeps heat in, while in summer it reflects solar heat away from your living spaces.
Lower Energy Bills
By dramatically reducing heat loss through roofs and walls, multifoil insulation can significantly cut heating costs — especially important given rising UK energy prices.
Breathable & Moisture Safe
Unlike spray foam, multifoil products allow moisture vapour to escape. This is critical for older UK properties where trapped moisture causes timber rot and structural damage.
Building Regs Compliant
All products we install carry BBA certification and meet Approved Document L requirements. We handle Building Regulations compliance as part of every installation.
Our Multifoil Installation Process
Professional installation from survey to sign-off.
Free Survey & Assessment
We visit your property to assess the roof structure, measure up and discuss the best multifoil solution for your home — wherever you are in the UK.
Product Selection
Based on your property type and goals, we recommend the right product — whether that's YBS SuperQuilt, SuperFoil, ThermaWrap or another foil quilt system.
Professional Installation
Our experienced installers fit your multifoil insulation to manufacturer specifications, ensuring correct overlaps, taping and air gaps for maximum performance.
Quality Check & Certification
We inspect the completed installation, check thermal performance and provide all necessary documentation for Building Regulations sign-off.
Typical timeline: Most standard properties take 1–2 days depending on area and roof complexity.
How Much Does Multifoil Insulation Cost?
Multifoil installation costs depend on the area to be insulated, the product specified, and the complexity of the space. Below are typical price ranges for the three most common application types we carry out across the UK.
Rafter-Level Insulation
£1,400 – £3,500
SuperQuilt or SuperFoil fitted between and over rafters in a roof space or loft conversion. Protects headroom while meeting Building Regs.
Suitable for: terraces, semis and detached properties with standard roof structures
Full Loft Conversion
£2,500 – £4,500
Complete multifoil installation across all planes of a loft conversion — rafters, knee walls and flat ceiling — including ventilation detailing.
Suitable for: 1930s semis, Victorian terraces and period properties with loft conversion potential
Garden Room / Outbuilding
£1,200 – £3,000
Roof and wall panels of a timber-framed garden room or outbuilding. Creates a thermally efficient, year-round usable space.
Suitable for: garden offices, workshops, studios and timber outbuildings
All quotes include a free survey and written specification. Prices include materials, installation and Building Regulations documentation where applicable. All prices are dependent on size and are for reference only. Get your free quote below.
Get Your Free Quote
Quick questions • Exclusive offer • No obligation
Frequently Asked Questions
What is multifoil insulation and how does it work?
Multifoil insulation consists of multiple layers of reflective aluminium foil separated by wadding that reflect radiant heat back into the property. Products like YBS SuperQuilt and SuperFoil create reflective air gaps that dramatically reduce heat loss — making them one of the most effective thin insulation solutions available in the UK.
Which multifoil product is best for my property?
The best product depends on your property type and goals. YBS SuperQuilt is ideal for loft conversions where headroom is critical. SuperFoil SF19 offers excellent all-round performance for roofs, walls and floors. ThermaWrap is a versatile, cost-effective option for sheds, outbuildings and simpler loft applications. We recommend the right product during your free survey.
How does SuperQuilt compare to traditional loft insulation?
YBS SuperQuilt achieves comparable thermal performance to much thicker traditional insulation at just 40mm thick. This makes it perfect for loft conversions and rooms in roof where space is at a premium — a common challenge across the UK's older housing stock.
Is multifoil insulation suitable for older and period properties?
Yes. Multifoil products like SuperQuilt and ThermaWrap are breathable and allow moisture vapour to pass through, unlike spray foam which traps moisture. This makes them a safer choice for Victorian terraces, stone-built cottages, Georgian townhouses and other older UK properties where breathability is essential.
Does multifoil insulation comply with UK Building Regulations?
Yes. Products like YBS SuperQuilt, SuperFoil SF19 and ThermaWrap all carry BBA certification and meet the requirements of Approved Document L. We ensure all installations comply with current Building Regulations and provide full documentation for sign-off.
How much does multifoil insulation cost?
Costs depend on the area to be insulated, the product chosen and access. Rafter-level insulation typically costs between £1,400 and £3,500, full loft conversions between £2,500 and £4,500, and garden rooms or outbuildings between £1,200 and £3,000. All prices are dependent on size and are for reference only. We provide free surveys and clear, upfront pricing with no hidden costs.
Can multifoil insulation help with damp and condensation?
Multifoil products are breathable and allow moisture vapour to escape, which helps prevent condensation and damp issues. This is a significant advantage over spray foam, which can trap moisture and lead to timber rot — particularly in older UK properties where roof ventilation is critical.
How long does multifoil insulation installation take?
Most standard properties can be completed in one to two days depending on the area being insulated and the complexity of the roof structure. Larger properties or full loft conversions may take slightly longer. We provide a clear timeline during your free survey.
Multifoil Insulation Across Yorkshire
We install multifoil insulation across the full Yorkshire region and beyond. Visit our dedicated city pages for local information:
Multifoil Insulation Leeds
Victorian terraces, 1930s semis and loft conversions across all LS postcodes.
Multifoil Insulation Sheffield
Stone terraces, 1930s semis and loft conversions across S1–S35 postcodes.
Multifoil Insulation Wakefield
Garden rooms, loft conversions and period properties across all WF postcodes.
Multifoil Insulation York
Listed buildings, Georgian terraces and Victorian properties across YO postcodes.
We also cover the wider UK — call for availability.
Including the North West, Midlands, South East and beyond.
Ready for Multifoil Insulation?
Whether you're insulating a loft conversion, upgrading your roof insulation or looking for a breathable alternative to spray foam — speak to our multifoil specialists today. Free surveys available nationwide.