Professional Loft Insulation Across the UK
From mineral wool and fiberglass to rigid board, sheep's wool and multifoil — we install all types of loft insulation across the United Kingdom. Keep your home warmer, cut your energy bills and reduce your carbon footprint.
Arctic Insulation provides free loft surveys nationwide. Whether you need a simple top-up, a full installation or a premium upgrade with Kingspan, Celotex or sheep's wool — we'll recommend the right insulation for your home.
What Is Loft Insulation?
Loft insulation is a thermal barrier installed in your roof space to prevent heat escaping through the top of your home. Up to 25% of a home's heat is lost through an uninsulated roof — making loft insulation one of the single most effective ways to reduce energy bills and improve comfort in any UK property.
There are several types of loft insulation, each suited to different property types and budgets. The right choice depends on your loft's condition, how you use the space and your thermal performance goals. We install all major types across England, Scotland and Wales.
Mineral Wool
Glass wool or rockwool rolls — the most common and cost-effective option, installed to 270mm depth
Rigid Insulation Board
Kingspan, Celotex and PIR boards — highest thermal performance per millimetre of thickness
Sheep's Wool
Natural, breathable and eco-friendly — excellent moisture regulation and acoustic performance
Multifoil Insulation
Thin reflective quilts like SuperQuilt — ideal for loft conversions where headroom is limited
Why Proper Loft Insulation Matters
The UK's housing stock is one of the oldest and least energy-efficient in Europe. Millions of homes across Britain still have little or no loft insulation — or insulation well below the current 270mm standard set by Building Regulations. With up to 25% of heat lost through an uninsulated roof, upgrading your loft insulation is one of the fastest-payback home improvements you can make.
"A well-insulated loft can save a typical UK household up to £590 per year on energy bills. With energy prices remaining high, loft insulation is one of the fastest-payback home improvements you can make."
Benefits of Loft Insulation
Why homeowners across the UK are investing in proper loft insulation.
Energy Bill Savings
Loft insulation to the recommended 270mm depth can save a typical UK household up to £590 per year on heating bills — one of the fastest-payback home improvements available.
Warmer Home Year-Round
Proper loft insulation keeps heat in during the cold British winter months and reflects solar heat in summer, creating a more comfortable home in every season.
Increased Property Value
A well-insulated loft improves your EPC rating, which can increase your property's value and make it more attractive to buyers and mortgage lenders.
Quick Installation
Most properties can be fully insulated in a single day. Mineral wool installations are particularly fast — causing minimal disruption to your household.
Eco-Friendly Options
Choose from natural sheep's wool, recycled glass wool or other sustainable materials. Reducing heat loss also cuts your home's carbon emissions significantly.
BBA-Certified Materials
All insulation products we install carry independent BBA certification and meet current Building Regulations — giving you peace of mind and documented compliance.
Insulation Types We Install
We work with all major insulation types to find the right fit for your home, wherever you are in the UK.
Mineral Wool (Fiberglass & Rockwool)
The most common and cost-effective loft insulation. Glass wool and rockwool rolls are laid between and over joists to the recommended 270mm depth. Excellent thermal and acoustic performance. Non-combustible, rot-proof and long-lasting. Ideal for most UK homes.
Rigid Insulation Board (Kingspan, Celotex, PIR)
Rigid PIR boards deliver the highest thermal performance per millimetre — making them ideal for loft conversions and rooms in roof where space is limited. Products like Kingspan Kooltherm and Celotex GA4000 are BBA-certified and widely specified by architects.
Sheep's Wool Insulation
A natural, breathable and fully sustainable insulation material. Sheep's wool absorbs and releases moisture without losing thermal performance — making it excellent for older and period properties where breathability is essential. Safe to handle and chemical-free.
Multifoil Insulation
Thin reflective quilts like YBS SuperQuilt and SuperFoil that deliver excellent thermal performance in a fraction of the thickness. Perfect for loft conversions where every centimetre of headroom counts.
View our multifoil insulation service →How Much Does Loft Insulation Cost in the UK?
Loft insulation costs depend on the type of insulation, the area to be covered and the current condition of your loft. Below are typical price ranges for the three most common jobs we carry out across the UK.
Small Loft
From £950
Ideal for smaller terraced and semi-detached properties. Includes insulation to the recommended depth, fitted around pipes, cables and the loft hatch.
Medium Loft
£2,000 – £2,800
Suitable for standard 3-bedroom semis and detached properties. Full loft insulation including all preparation and waste removal.
Large Loft
£2,000 – £3,000+
For larger detached properties, complex loft layouts or premium insulation materials such as rigid board or sheep’s wool.
All quotes include a free survey and written specification. Prices include materials, installation and disposal of old insulation where required. All prices are subject to a full loft inspection and survey results. Get your free quote below.
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Frequently Asked Questions
What types of loft insulation do you install?
We install all major loft insulation types across the UK: mineral wool (glass wool and rockwool) at the recommended 270mm depth, rigid insulation boards from Kingspan and Celotex for maximum thermal performance, natural sheep's wool for eco-friendly breathability, and multifoil insulation like YBS SuperQuilt for loft conversions where space is limited.
How thick should loft insulation be?
Current UK Building Regulations recommend a minimum of 270mm of mineral wool insulation for lofts. Many older properties across Britain still have just 100mm or less — installed decades ago when standards were lower. Topping up to 270mm is one of the most cost-effective energy improvements you can make to any home.
How much does loft insulation cost in the UK?
Costs depend on the size of your loft, the insulation type and the current condition of your loft. A small loft typically starts from around £950, a medium loft ranges from £2,000 to £2,800, and larger or more complex lofts from £2,000 to £3,000+. All prices are subject to a full loft inspection and survey results. We provide free surveys and fixed quotes nationwide.
Is there a government grant for loft insulation?
Yes. The ECO4 scheme and Great British Insulation Scheme (GBIS) can cover part or all of the cost of loft insulation for eligible UK households. Eligibility is typically based on income, benefits or the energy rating of your property. We can advise during your free survey whether you qualify.
Can I install loft insulation myself or should I use a professional?
While mineral wool rolls can be a DIY job in straightforward lofts, professional installation ensures correct depth, no gaps around pipes and cables, proper ventilation at the eaves and compliance with Building Regulations. Incorrect installation can reduce performance by up to 50% and cause condensation problems.
What is the best insulation for an older property?
Older properties — Victorian terraces, Edwardian semis and stone-built homes — often need breathable insulation to manage moisture. Sheep's wool and mineral wool are excellent choices for the loft floor, as they allow vapour to pass through rather than trapping it. Rigid board is better suited to newer, well-ventilated properties or loft conversions.
How long does loft insulation last?
Mineral wool insulation can last 40 years or more if installed correctly and left undisturbed. Rigid board and sheep's wool have similar lifespans. Over time, insulation can compress, become damp or develop gaps — particularly if disturbed by tradespeople or storage. We recommend a free loft survey every 10–15 years to check condition.
Will loft insulation make my home warmer in winter?
Absolutely. Up to 25% of heat in an uninsulated home is lost through the roof. Properly installed loft insulation to the recommended 270mm depth keeps warmth inside, reduces draughts and makes rooms below the loft noticeably more comfortable — cutting your heating bills and carbon emissions at the same time.
Loft Insulation Across Yorkshire
We have dedicated loft insulation pages for our core Yorkshire service areas. Visit your local page for city-specific information, pricing and case studies.
Loft Insulation Leeds
Victorian terraces, 1930s semis and modern builds across all LS postcodes.
Loft Insulation Sheffield
Stone terraces, 1930s semis and Victorian properties across all S postcodes.
Loft Insulation Wakefield
Post-war semis, ex-council properties and new-builds across all WF postcodes.
Loft Insulation York
Period properties, Edwardian homes and conservation area properties across YO postcodes.
We also cover the wider UK — call for availability.
Including the Midlands, North West, North East, South East and beyond.
Useful Guides
Read our expert articles to help you make informed decisions about insulating your home.
Loft Inspection Checklist: What to Look For
Before booking any loft work, use our step-by-step checklist to assess your loft's condition and insulation coverage.
How Much Can Loft Insulation Save on Your Energy Bills?
A detailed look at the real-world savings you can expect from properly installed loft insulation, based on property type and insulation depth.
Spray Foam and Timber Rot: Understanding the Risks
Closed-cell spray foam can trap moisture in roof timbers. We explain the risks and why breathable insulation is often a safer choice.
Why Choose Arctic Insulation Across the UK
Nationwide Team
Our installers cover England, Scotland and Wales. Wherever you are in the UK, we have experienced teams ready to survey and insulate your loft.
All Insulation Types
Mineral wool, rigid board, sheep's wool and multifoil. We're not tied to one product — we recommend the right insulation for your property and budget.
Free Survey
Every job starts with a free, no-obligation loft survey. We assess your current insulation, measure up and provide a clear written quote.
Lifetime Guarantee
All our loft insulation installations come with a lifetime guarantee on workmanship. BBA-certified materials mean your insulation is built to last.
Clean & Tidy
We leave your home as we find it. All waste is removed, the loft hatch area is cleaned and we always wear shoe covers inside your property.
Accredited Installers
Fully insured, trained and accredited. We install to manufacturer specifications and handle Building Regulations compliance as standard.
Professional loft insulation — properly surveyed, properly installed, properly guaranteed.
Ready for Loft Insulation?
Whether you need a simple top-up, a full loft insulation or a premium upgrade with rigid board or sheep's wool — speak to our insulation specialists today. Free surveys available nationwide.