How much does WYGS charge to extract faulty cavity wall insulation and re‑fill?
Posted on April 3rd, 2026
💷 CAVITY WALL INSULATION COSTS BY PROPERTY TYPE
🏡 BUNGALOW
£1,250 – £2,400
Larger footprint means more wall area, which increases the overall cost.
🏠 TERRACED HOUSE
£1,000 – £2,200
Typically the cheapest option due to fewer exposed external walls.
🏡 SEMI-DETACHED
£1,750 – £2,500
Moderate pricing as three walls are exposed.
🏡 DETACHED HOUSE
£2,500 – £4,600+
Highest cost due to all walls being exposed.
💷 CAVITY WALL INSULATION EXTRACTION COSTS
🏠 TERRACED HOUSE
£1,500 – £2,700
🏡 SEMI-DETACHED
£2,250 – £3,000
🏡 DETACHED HOUSE
£3,000 – £5,100+
🏡 BUNGALOW
£1,750 – £2,900
📊 WHY PRICES VARY
- Property size and wall area
- Access requirements
- Type and condition of insulation
- Damp or repair work needed
IS IT WORTH IT?
✔ Lower energy bills
✔ Warmer home
✔ Prevents damp issues
✔ Increases property value
READY TO GET STARTED?
👉 Get an accurate quote based on your property today
Further information can be found at www.wygs.co.uk/
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