Seven signs your loft insulation needs replacing
You don’t need to be an expert to spot failing insulation. Here are the signs, and what each one usually means.
The signs
- It’s below the tops of the joists. Too thin, or squashed.
- It’s grey and dusty. Old and settled.
- It’s damp or stained. A leak or condensation.
- Black spots nearby. Mould from moisture.
- Droppings or tunnels. Pests.
- A musty smell. Damp somewhere.
- Boxes on top of it. Compressed.
What to do
Dry, clean but thin: top it up. Damp, soiled or mouldy: it should come out, and the cause should be found first.
Common questions
Can you check it for me?
Yes. Book a free loft check on the form.
Tell us what you’ve found. We’ll find the cause.
Describe the problem and we’ll look, explain it and quote the fix in writing. Free.