- [Home](/) - / [Guides](/#guides) - / How much does loft insulation cost in Bristol? Learn # How much does loft insulation cost in Bristol? [Eco Spray Foam Insulation](/) has pulled together the published 2026 UK price guides, so you can judge a Bristol quote before you accept it. Updated 12 November 2026. Prices are published UK estimates, not a quote from us. The short answer A typical three-bedroom semi-detached house usually costs about £500 to £1,200 to insulate with mineral wool, and one 2026 guide puts the average at £950 (MyJobQuote, 12 October 2026). Materials are about £10 per m². Our starting rate is from £10 per m². The final price depends on the size of your loft. We could not find a published loft insulation price list for Bristol alone. The figures below are UK ranges from named 2026 guides, collected on 12 November 2026. They show what is normal. They are not a quote from us or from any other firm. ## Loft insulation cost by house type Prices for mineral wool laid to 270mm, fitted by a professional, vary a lot between guides. Here is what each one says. SourcePropertyCost MyJobQuote (12 October 2026)Flat or one-bedroom£200 to £500 MyJobQuote (12 October 2026)Two-bedroom terrace£300 to £700 MyJobQuote (12 October 2026)Three-bedroom semi-detached£500 to £1,200 MyJobQuote (12 October 2026)Four-bedroom detached£900 to £1,800 MyJobQuote (12 October 2026)Period property (pre-1919)£1,200 to £2,500 Checkatrade, via Home Owners Alliance (July 2026)Terraced house£654 Checkatrade, via Home Owners Alliance (July 2026)Semi-detached house£825 Checkatrade, via Home Owners Alliance (July 2026)Detached house or bungalow£1,206 Energy Saving Trust, via Home Owners AllianceThree-bedroom semi-detached£750 Book a Builder (20 June 2026) prices a semi-detached house with a 40 to 60 m² loft at £400 to £700 for a top-up to 270mm, and £700 to £1,200 for a full installation that includes clearing the old material. Its introduction gives a different top-up range, so treat the exact figure with care. ## Loft insulation cost per square metre MaterialCost per m²Source Quilt (mineral wool), materials onlyabout £10Home Owners Alliance, updated 8 October 2026 (+VAT) Loose-fill, materials onlyabout £12Home Owners Alliance, updated 8 October 2026 (+VAT) Thermal foil layer, materials onlyabout £14Home Owners Alliance, updated 8 October 2026 (+VAT) Loft insulation roll, fitted£10 to £20Book a Builder, 20 June 2026 Our starting rate for mineral wool loft insulation is from £10 per m². SuperFOIL starts from £45 per m². The price of your job depends on the size of the loft and what it needs. ## How much insulation does a loft need? The government recommends at least 270mm of mineral wool, according to the Home Owners Alliance (updated 8 October 2026). Book a Builder prices a top-up below a full installation, so ask for the depth you already have to be checked first. ## What adds to the cost - Removing old insulation. The Home Owners Alliance gives about £250 for a day’s labour, plus a skip or waste removal. - Loft clearance. Book a Builder gives £100 to £400. - Ventilation. Book a Builder gives £50 to £150 for ventilation trays. We include lap vents where needed. - Pipework. Insulating pipes costs £6 to £35 per metre (Checkatrade, via Home Owners Alliance). - Boarding. About £55 per m² for basic boarding (Home Owners Alliance) up to £80 to £100 per m² for raised boarding (MyJobQuote). - Access. A loft with no safe way up may need a hatch or ladder. Ours start from £200 and £150. ## Labour costs MyJobQuote (12 October 2026) gives £150 to £250 a day. Book a Builder (20 June 2026) gives £150 to £250 per installer per day, higher in London and the South East. The Home Owners Alliance gives £250 a day. ## What we include Where it is needed, waste removal, anti-fungal timber treatment, hatch insulation and draught proofing, tank and pipe insulation, lap vents and a completion certificate are included at no extra charge. Ask us to confirm what applies to your loft. ## Grants Some households can get help with insulation costs through government-backed schemes such as ECO4. Whether you qualify depends on the scheme rules at the time. We can advise. ## Common questions ### How long does loft insulation take? MyJobQuote (12 October 2026) gives about one day for blanket rolls in a standard loft. Boarding as well, or a larger loft, can take two to three days. ### Does the price include VAT? Guides differ. The Home Owners Alliance table is marked +VAT (updated 8 October 2026), while Book a Builder (20 June 2026) says its figures are typically inclusive of VAT for domestic work. Ask for a quote that says clearly whether VAT is included. ### How much does loft boarding add? Published guides give about £55 per m² for basic boarding (Home Owners Alliance, citing Checkatrade) and £80 to £100 per m² for raised boarding (MyJobQuote, 12 October 2026). Our new loft boarding starts from £55 per m². Want a price for your own loft? Send us the details or call. Call [0117 362 0417](tel:+441173620417) (Monday to Sunday, 9am to 7pm) or use the form below. ## More guides - [How much does spray foam removal cost in Bristol?](/guide/spray-foam-removal-cost-bristol/) - [How much does spray foam insulation cost?](/guide/spray-foam-insulation-cost/) - [How much does loft boarding cost in Bristol?](/guide/loft-boarding-cost-bristol/) [Back to loft insulation in Bristol](/)