Services

Loft Insulation Top-Up

If your loft already has some insulation but it is thin or has settled over the years, a top-up brings it back up to depth without starting again.

  • Keep sound insulation
  • Bring it up to depth
  • No obligation
  • Written quote first
Get a Free QuoteHow it works

About this service

A top-up adds a new layer across the joists over insulation that is still dry and in good condition, so the loft reaches the recommended depth.

What’s included

  • A check that the existing insulation is dry and sound
  • A second layer laid across the joists
  • Eaves kept clear for ventilation
  • Hatch insulation and draught-proofing where needed
  • Pipes and tanks protected
  • A written quotation before work starts

We price the job after looking at your loft. You get a written quotation before any work is agreed.

When a top-up makes sense

Many homes were insulated years ago to a depth that was normal at the time but is well below what is recommended now. Mineral wool also settles and compresses, especially where people have walked or stored boxes on it. If the existing layer is dry, clean and reasonably even, it can usually stay where it is with a new layer laid on top at right angles to the joists.

When it does not

A top-up is not the right answer if the existing insulation is damp, mouldy, contaminated by rodents or badly disturbed. In that case it is better to remove it first and start again; see loft insulation removal.

Measuring what you have

If you can safely look into your loft, a ruler pushed down through the insulation to the ceiling below gives a rough idea of its depth. It is useful to mention this when you send your enquiry, but you do not have to: we will check it.

The process

How it works

  1. Tell us about your home

    Send your postcode and a few details about the property and what you have noticed in the loft. It takes a couple of minutes and costs nothing.

  2. We get in touch

    We call or email to talk through what you need and arrange a time to look at the loft.

  3. We survey and quote

    We check the loft, in person where it needs it, and send you a written quotation that sets out the work and the price.

  4. You decide

    There is no obligation. If you go ahead, we agree a date with you and carry out the work.

Loft Insulation Top-Up: your questions answered

How do I know if my loft needs a top-up?
If the insulation sits level with or below the top of the joists, it is likely to be well under the recommended depth. A quick look or measurement is a good guide, and we will confirm it.
Can new insulation go on top of old?
Yes, as long as the old insulation is dry and in reasonable condition. If it is damp, mouldy or contaminated, it should come out first.
Will a top-up stop me using the loft for storage?
Insulation at full depth rises above the joists, so boards laid straight onto the joists would squash it. Raised boarding sits above the insulation and keeps the storage space.
Is there a charge for the quote?
No. Enquiring is free and the quote comes with no obligation.

Related

Where we work

Ready for a free loft insulation quote?

Tell us about your home and we’ll give you a written quotation before any work begins.

Get a Free Quote
Get a Free Quote