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Free cavity wall surveys across mainland England, Scotland and Wales

Help and support

How Cavity Reset works, what our guarantee covers, what happens after you book, and how to get advice after the job.

A person's hands writing on a printed form at a wooden table

Book a free survey

Four details and we do the rest. No charge, no obligation.

We reply within one working day to arrange a free survey and quote.

  • Checkatrade 9.74/10 from 141 reviews
  • TrustATrader 4.9/5 from 25 reviews

Scores for Remove Sprayfoam Limited, the company behind Cavity Reset.

Having your walls opened is not a small thing, and you should know exactly how it will go before you agree to it. This section sets it out in writing: the way we work, what our guarantee covers and what it does not, the stages of a job from first email to final photographs, what to do after the work, and how to get hold of us when something needs looking at.

We reply within one working day to arrange a free survey and quote. For anything not covered here, ask a question.

Book a free survey and we will tell you what your wall needs and what it costs.

Free survey

Book your free survey

We reply within one working day to arrange a free survey and quote.

  • Checkatrade 9.74/10 from 141 reviews
  • TrustATrader 4.9/5 from 25 reviews

Scores for Remove Sprayfoam Limited, the company behind Cavity Reset.

Or email [email protected]. Your details are used to answer you and for nothing else: see the privacy policy.

What happens next

  • A free survey first We check the wall inside and out and look into the cavity with a small camera. Then you get a fixed price in writing.
  • The insulation comes out Bricks come out at the base of the wall, the old fill is drawn out, and the bricks go back in, pointed to match.
  • A completion certificate You receive a completion certificate when the work is done. If a lender or surveyor has flagged a filled cavity, that certificate is what you show them.