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External wall insulation · East Sussex

External wall insulation in Hove

Need external wall insulation in Hove? Tell us about the property and we'll arrange a free survey and a written quote. Whole-house jobs and single elevations are both quoted in Hove; a cold gable or rear wall can be done on its own where it suits.

  • Free survey in BN3 and nearby
  • Guide price from £105 per m² + scaffold, 0% VAT
  • Fixed written price before work starts

Free survey in Hove

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What's included

  • Installing wall insulation in homes is currently zero-rated for VAT until 31 March 2027
  • Covers tired brick, pebble dash or failing render with a new finish
  • Work happens outside, so you can live at home throughout
  • Boards chosen for the wall: EPS, mineral wool, wood fibre or phenolic
Side gable of a semi-detached house part-way through external wall insulation, with mineral wool slabs, mesh base coat and finished white render

Local considerations in Hove

We also cover Brighton and Portslade, close to Hove. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.

Exposure to wind-driven rain varies across East Sussex: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.

For homes in Hove, the survey starts with the wall itself: solid brick, stone or concrete, and whether any old render is sound enough to insulate over.

Postcode district
BN3
County or area
East Sussex
Nation
England
Nearby
Brighton, Portslade, Burgess Hill, Worthing

Planning and building control in England

Planning in Hove follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.

Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.

What does the survey check before EWI is specified?

  • Wall construction and condition, including any damp, cracking or loose render
  • Ground levels and the damp-proof course, so the system starts above splash height
  • Eaves depth, verges and whether the roofline needs extending
  • Window positions, cill depths and reveal space
  • Services on the wall: gas, electric meters, flues, soil pipes, satellite dishes and lights
  • Planning and Building Regulations position for your property and nation

External wall insulation prices in Hove

External wall insulation guide prices
ItemGuide priceNotes
EPS system with silicone render£105–£145 per m²0% VATMost common choice for houses
Mineral wool system£125–£170 per m²0% VATNon-combustible, vapour-open
Brick-slip finish over insulation£185–£260 per m²0% VATWhere a brick look is wanted
Three-bed semi, EPS + silicone (incl. scaffold)£10,200–£17,7000% VAT80–100 m² of wall; depends on detailing and access

Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.

From enquiry to finished wall

  1. Enquiry

    Send your postcode and a few details.

  2. Measured survey

    Walls, damp, eaves, cills and services recorded.

  3. Written price

    A fixed price with the specification attached.

  4. Work and handover

    Installed, inspected and documents handed over.

External wall insulation in Hove: questions

Does external wall insulation cause damp?

Not when it is specified and detailed properly. Problems usually come from poor detailing: no starter track above the damp-proof course, gaps at cills and penetrations, or a vapour-closed system on a wall that needs to breathe. The survey checks moisture, ground levels and the wall type before a system is chosen.

How long does external wall insulation last?

A well-installed render system is commonly expected to last 25–30 years or more, with occasional cleaning and inspection of sealants. The system manufacturer's documentation states the expected service life for the specific build-up.

Does EWI need Building Regulations approval?

In England and Wales, usually. Insulating more than half of a wall's area, or more than a quarter of the building's whole external envelope, counts as renovating a thermal element, so building control needs to be involved and the wall should reach about 0.30 W/m²K where that's practical. Scotland and Northern Ireland have their own building standards processes.

Do you cover Hove?

Yes — we survey and quote external wall insulation in Hove (BN3) and nearby Brighton, Portslade and Burgess Hill, with a fixed written price before any work starts.

External wall insulation in Hove

Start with a guide price, then fix it with a free survey in Hove.

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