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Reigate · Surrey

Cavity insulation top-up in Reigate

A cavity top-up fills voids left by an older installation: missed panels around windows, settled fibre, areas disturbed by an extension or new window. In Reigate we follow the England rules on building notices and self-certification, and confirm the route on your quote.

Free survey in Reigate

Covering Reigate and the RH2 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Cavity insulation top-up for Reigate properties

If your property is in Reigate or the RH2 district or nearby Redhill, Horley and Banstead, it is within our Surrey coverage. It is around 16 miles east of Guildford.

Where a Reigate property has an extension or a conservatory, we check how the old and new walls meet, because that junction is often missed. A suitable wall in Reigate is usually filled in a single day from outside, with drill holes made good to match the pointing.

Every elevation is judged on its own exposure. Much of Surrey sits in the more sheltered driving-rain zones of the UK, which widens the choice of fill. Exposed elevations, coastal sites and high ground still get checked wall by wall.

For regulations, in Reigate filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.

Funding in England

In England, ECO4 runs to 31 December 2026 and Warm Homes: Local Grant supports low-income households through councils.

Sources: GOV.UK: extending the ECO4 end date, government response; GOV.UK: Warm Homes Plan.

How do I know if my walls need a top-up?

Cold patches on internal walls, a thermal image showing uneven heat loss, or an EPC that says 'filled cavity' when parts of the house feel colder are all signs. Extensions are a common cause: the new wall is insulated as built, but the old wall it joins may have been left partly empty.

What is included in Reigate

  • Targeted fill with a compatible system
  • Making good
  • Map of filled and empty sections
  • Written result with photos

Guide prices for Reigate

Cavity insulation top-up guide prices
Cavity insulation top-up guide pricesGuide price
Detached house£1,295–£2,295
Semi-detached house£795–£1,495
End-terrace house£695–£1,295
Detached bungalow£695–£1,295
Semi-detached bungalow£595–£995
Mid-terrace house£595–£995

No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.

From enquiry to finish in Reigate:

  1. Tell us about the property

    Postcode, property type and what you need.

  2. Free survey

    Walls, cavity, condition and exposure checked and photographed.

  3. Written result and price

    Suitable, suitable after repairs, or not suitable, with a fixed price.

  4. Work and paperwork

    Installation, making good, and the regulations and guarantee paperwork.

Last reviewed 19 October 2026.

Cavity insulation top-up in Reigate: questions

Do you cover Reigate?

Yes. Reigate and the RH2 postcode district are within our Surrey coverage, along with nearby Redhill and Horley.

Do you work on rented homes in Reigate?

Yes. Landlords and agents in Reigate can book batch visits, and work is arranged around tenants.

Is there VAT on cavity insulation top-up in Reigate?

Installing insulation in a home is currently zero-rated for VAT until 31 March 2027, then 5%. Commercial buildings are standard-rated.

How much does cavity insulation top-up cost in Reigate?

Our guide ranges for cavity insulation top-up are shown on this page. The fixed price for your Reigate property is confirmed in writing after the survey, before any work starts.

Nearby towns

Book a free survey in Reigate

Free survey with an install quote. Written result. Fixed price before any work.