Loft guides: measure it, insulate it, use it

Short, practical answers to what people ask before getting their loft done.

Illustration: a homeowner checking the loft

Checking your insulation
How to measure loft insulation depth with a ruler, and what the number tells you.
How much do I need?
The depth commonly recommended for loft insulation and why it takes two layers.
Boarding over insulation
Why boards on joists squash insulation and how a raised floor keeps both storage and warmth.
Insulating a boarded loft
Options when your loft is already boarded: lift and raise, or insulate between the joists.
Pipes and tanks
Why pipes and tanks need lagging after a loft is insulated.
Cables and downlights
Why cables sit on top of loft insulation and how downlights are handled.
Signs it needs replacing
How to tell whether your loft insulation can be topped up or needs replacing.
Loft condensation
Why a newly insulated loft can get condensation and how airflow fixes it.
Spray foam and mortgages
Why lenders query spray foam on rafters and what removal involves.
Landlords and rented homes
Getting a rental loft insulated quickly with minimum disruption to tenants.
What we check
The checklist we go through before quoting: depth, joists, headroom, access, eaves.

Full depth below. Room to store above. Get a price.

Tell us about your loft and we’ll quote the insulation, boarding and ladder in writing. Free, no obligation.

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