The Insulation Company team and van outside a UK home
In-House Teams · Hampshire, Bristol & South Wales

Loft Insulation Installation Done Right

Arrange a free loft assessment for insulation installation, top-ups, removal, ventilation and raised boarding. We provide an honest written quotation before anything begins.

Free Assessment
In-House Staff
Written Quotation
Up to 5 Yr Guarantee

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Energy Efficiency Fact

You lose up to 40% of your home’s heat through an uninsulated roof

A well-insulated, correctly ventilated loft keeps heat inside your living spaces during winter and blocks excessive heat in summer. We measure your loft depth and inspect ventilation to give you an exact, honest recommendation.

✓ 270mm–300mm standard depth✓ Clean in-house fitting✓ Eaves airflow protected
Roof heat loss diagram showing warmth escaping uninsulated lofts

Our Loft Services

Loft Solutions for Every Kind of Home

From first installations and top-ups to safe removal, raised boarding, and ventilation work.

Loft Insulation Installation

First-layer full insulation fitted to 270mm-300mm standard depth

A first, full loft-floor insulation installation for uninsulated or bare lofts — measured, fitted and finished with eaves left clear.

Loft Insulation Top-Up

Layering new insulation over existing sound layers to meet recommended depth

Adding to sound existing loft insulation to reach 270mm–300mm depth — measured first, combined correctly and finished with eaves kept clear.

Loft Insulation Removal & Cleaning

Safe extraction of wet, damaged, rodent-contaminated or flattened old insulation

Careful removal, bagging and disposal of old or contaminated insulation — with thorough vacuum cleaning and timber inspection before new material goes down.

Raised Loft Boarding

Safe loft storage subframes raised high above thick insulation

Raised boarding systems that give you a usable storage platform without crushing the insulation underneath or destroying its thermal performance.

Loft Ventilation

Eaves vents, lap vents and ridge ventilation to protect roof timbers

Keeping air moving through the loft so moisture escapes and roof timbers stay dry — eaves ventilation, lap vents and clearing blocked airflow.

Mould & Condensation Solutions

Addressing roofspace dampness with balanced insulation and airflow

Diagnosing cold bridge spots and inadequate airflow to stop loft condensation and timber decay safely and permanently.

Rodent Proofing & Decontamination

Sealing entry points, replacing soiled insulation and restoring hygienic conditions

Comprehensive loft cleanup after pest intrusion — removing contaminated insulation, sanitising timbers and sealing eaves gaps.

Insulation Materials

Choosing the Right Material

Different lofts suit different materials depending on breathability, budget, and roof design.

Mineral Wool (Glass & Rock Wool)

Widely specified, non-combustible roll insulation laid between and over joists to 270mm+.

Natural Sheep Wool

Breathable, moisture-buffering natural wool often chosen for traditional or listed timber roofs.

Recycled Plastic & Multifoil

Durable recycled plastic rolls or thin multi-layer reflective rafter foils for warm-roof setups.

View full material comparison guide

Property Era Guide

Older House? The Approach Changes.

Victorian terraces, 1930s semis, and modern homes all behave differently in the roofspace.

Pre-1920 & Victorian

Built to breathe. Requires careful ventilation management and breathable insulation choices.

1920 to 1965 Semis

Often feature existing 50mm–100mm compressed insulation that benefits from a careful top-up layer.

Read complete property era guide

Verified Feedback

What Homeowners Say About Our Work

Genuine Google reviews from homeowners who had their lofts assessed and insulated by our team.

"Very good, prompt and friendly service with an excellent result. Very pleased with the outcome. Well done lads."

Sam ShawGoogle review

"Recommended. Friendly, efficient and did a great job in two very dirty loft spaces. All the waste shifted quickly. Top job. Thanks."

Luke CollinsonGoogle review

"These guys are the best! Rory and Leo were very kind to me and got it all done in just a day. Thank you."

W RizzGoogle review

"Jake and Rory supplied and fitted the insulation in our loft. They did an excellent job and I would recommend them."

Karen BarrettGoogle review

"It was refreshing to have two young lads who came in and worked incredibly hard on my loft. They came early and left late to get the job done. The best workers I’ve had in a long time, and I would recommend them 100%."

Helen WilliamsGoogle review

"Good lads. They were professional throughout, took extra care and left the place spotless. We can already feel the difference with the fresh insulation."

CulleyGoogle review

Coverage Area

In-House Services Across Three Main Clusters

We operate dedicated in-house teams serving Hampshire, Bristol & the South West, and Cardiff & South Wales.

Hampshire

Key towns: Basingstoke, Andover, Farnborough, Southampton, Portsmouth, Winchester.

View region details

Bristol & South West

Key towns: Bristol, Bath, Weston-super-Mare, Yate.

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Cardiff & South Wales

Key towns: Cardiff, Newport, Penarth, Barry, Bridgend.

View region details