Loft Insulation
Knauf Earthwool is a glass mineral wool loft roll: non-combustible (Euroclass A1) and laid between and across the ceiling joists. It is the usual choice for a standard pitched loft.
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Warmer homes. Lower bills. Bristol loft insulation.
Cut Your Energy Bills with Loft Insulation
Loft insulation, top-ups and raised loft boarding across Bristol and the surrounding towns. Keep your home warmer in winter, with a written quotation before anything begins.
- Free assessment
- Written quote first
- Guarantee up to 5 years
- Experienced professionals
No obligationHonest, practical adviceBristol and nearby towns
FreeLoft assessment, no obligation
Up to 5 yrsGuarantee on eligible installs
270mmRecommended insulation depth
What we do
Our services
Everything we do happens in the loft: insulation, storage, access, and the problems people find when they finally look up there.
Raised Loft Boarding
Raised boarding turns loft space into usable storage without compressing the insulation underneath, so you keep both the storage and the warmth.
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SuperFOIL Insulation
SuperFOIL is a thin multifoil insulation fitted to the rafters. It suits lofts you want to use, low-pitched roofs and spaces where a deep layer of wool on the floor will not work.
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Loft Ladders & Hatches
A proper loft ladder makes the loft part of the house: measured to your ceiling height and hatch, with the hatch insulated and draught-proofed.
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Mould & Condensation
We look for the cause of loft mould, treat the affected timbers and roof lining, and set out the ventilation and moisture fixes that deal with the condensation behind it.
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Rodent Proofing
Mice and rats in the loft spoil insulation and can chew cables. We find how they are getting in, seal the entry points and replace insulation they have damaged.
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Spray Foam Removal
Careful removal of sprayed polyurethane foam from the underside of your roof, a clear look at the timbers underneath, and a properly insulated loft afterwards.
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Why us
How we work
Simple to arrange and honestly explained, without pressure or permanent “offers”.
Free assessment
We look at your property and loft first, with a survey where one is needed. No obligation.
Written quotation first
A clear written recommendation and quotation, setting out the scope, materials and price, before anything is agreed.
Honest recommendations
If a top-up is all you need, that is what we quote. If ventilation, damp or rodents need sorting first, we explain why.
Done properly
Insulation to the recommended 270mm, eaves kept clear, hatches insulated, and boards raised so they do not squash the insulation.
Guarantee up to 5 years
Eligible installations may include a written guarantee of up to five years. The terms are set out in your quotation.
Clear about who does the work
Depending on the service and location, work may be completed by The Insulation Company or an approved installation partner.
Coverage
Areas we cover
Loft insulation across Bristol and the towns around it, from Bath, Weston-super-Mare and Gloucester to Swindon, Oxford, Worcester and Birmingham.
Bristol
Bristol City Centre · Clifton · Redland · Bedminster · Easton · Stapleton · Horfield · Bishopston · St Paul's · Montpelier · Ashton · Southville · Totterdown · Knowle · Brislington · Hanham · Filton · Westbury-on-Trym · Henleaze · Sneyd Park · Cotham · Hotwells · St George · Kingswood · Fishponds · Bradley Stoke · Thornbury
Somerset, North Somerset, Devon & Dorset
Gloucestershire & South Glos
Wiltshire, Swindon & Hampshire
Worcestershire, Herefordshire & Warwickshire
Not sure if we cover your area? Give us a call or see all locations.
Our work
Recent jobs around Bristol
Real jobs from The Insulation Company’s project library in and around Bristol.
Loft insulation installation 1930s semi-detached house
Loft Insulation Case Study — Full Loft Insulation Upgrade Around a Central Hatch, Bristol
A largely uninsulated 42m² loft floor with exposed ceiling joists and open gaps around the hatch frame. It was upgraded to a full 300mm of Knauf glass mineral wool — 100mm between the joists and 200mm cross-laid — while keeping the central hatch clear and usable.
Bristol
Mould & condensation treatment 1930s semi-detached house
Loft Mould Treatment in Bristol
Loft mould treatment in a 1930s semi-detached home
Bristol
Loft insulation installation Rodent proofing and ventilation
Loft Insulation Case Study — Rodent Proofing, Ventilation and a Full 300mm Replacement, Stoke Gifford
Rats had got into this loft in Stoke Gifford, north Bristol, and the roof space had very little working ventilation. We removed all of the old insulation, proofed the entry points rodents were using, added ventilation at the eaves and laid a fresh 300mm layer of Knauf mineral wool across the loft floor.
Stoke Gifford, Bristol
Loft insulation installation 1980s detached house
Loft Insulation Case Study — SuperFOIL Upgrade in a Compact Block-Gable Loft, Bristol
A compact block-gable loft with floor insulation already in reasonable condition but an uninsulated roof pitch. The 52m² pitch was sealed with SF19 SuperFOIL and the existing central walkway kept in place.
Bristol
Expert advice
From our advice centre
Honest guides for Bristol homeowners.
Is Loft Insulation Worth It? A Bristol Homeowner's Honest Guide
For most Bristol homeowners the honest answer is yes, but how much it helps depends on your home type, your current insulation and how you heat the house.
Read the guide
SuperFOIL vs Mineral Wool: Which Is Right for Your Loft?
Mineral wool on the loft floor is the best value for most homes. SuperFOIL earns its place where you need the loft space, have a low pitch or awkward roof. Here is how to choose.
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Loft Condensation and Mould: Why It Happens and How to Fix It
Wet felt, dripping nails and black spots on the rafters are usually condensation, not a leak. Here's what causes it in lofts across Bristol and the South West and how to put it right.
Read the guide
Get started
Get your free quote
Tell us about your loft and we will come back to you to arrange the next step. There is no obligation.
- Free loft assessment
- No obligation, no pressure
- Honest, practical advice
- Written quotation before any work
Our story
About Bristol Insulation Company
Bristol Insulation Company helps homeowners in Bristol and the surrounding towns with their lofts: insulation and top-ups, raised boarding, loft ladders, and the problems people find up there, from mould and condensation to mice and spray foam.
We are part of The Insulation Company. We do not publish ratings, customer counts or claims we cannot back up; what we offer is a straightforward process and a written quotation before any work begins.
Looking for a team closer to you?
Part of The Insulation Company
Bristol Insulation Company is part of The Insulation Company, which helps homeowners across the UK. In Cardiff and South Wales, our sister site Cardiff Insulation Company covers your area.
Free, no obligation
Ready to arrange a free loft assessment?
Tell us about your property and we will review your loft requirements, then provide a written recommendation and quotation before any work begins.