Insulation/United Kingdom

🇬🇧

Insulation Prices United Kingdom

Prices per m² include VAT. U-values and Part L Building Regs apply. Loft insulation grants may be available under ECO4.

12 service types4 cities with data

Insulation Prices by Service — United Kingdom

Prices per m² include VAT. U-values and Part L Building Regs apply. Loft insulation grants may be available under ECO4.

ServiceFromAverageUp to
🏠Loft / Ceiling Batt Insulation

Loft insulation batts — supply and install to 270mm depth

£5/m²£8/m²£12/m²
🧱Wall Batt Insulation

Internal wall insulation batts between studs

£8/m²£13/m²£18/m²
🏗️Underfloor Insulation

Underfloor insulation boards or batts between joists

£10/m²£17/m²£25/m²
💨Open Cell Spray Foam

Open cell spray foam — loft and roof applications

£20/m²£27/m²£35/m²
🔒Closed Cell Spray Foam

Closed cell spray foam — high performance, moisture resistant

£30/m²£40/m²£50/m²
🌬️Blown-In Insulation

Blown-in loose-fill — cellulose or mineral wool for lofts

£8/m²£14/m²£20/m²
🪟Cavity Wall Insulation

Cavity wall injection — blown mineral wool or EPS beads

£5/m²£7/m²£10/m²
☀️Roof Sarking / Radiant Barrier

Reflective sarking membrane under roof tiles or slates

£4/m²£7/m²£10/m²
🔇Acoustic / Soundproofing

Acoustic mineral wool between party walls or floors

£15/m²£27/m²£40/m²
🗑️Old Insulation Removal

Remove and dispose of old or damaged insulation

£3/m²£5/m²£8/m²
⬆️Top-Up / Top-Off Existing

Add insulation over existing loft insulation

£3/m²£5/m²£7/m²
🏢External Wall Insulation (EWI)

External wall insulation system with render — solid wall homes

£40/m²£60/m²£80/m²

Insulation in United Kingdom ranges from £3/m² for basic ceiling batts to £80/m² for external wall insulation systems. Prices per m² include VAT. U-values and Part L Building Regs apply. Loft insulation grants may be available under ECO4.

The most common types in United Kingdom are batt insulation (ceiling and walls), blown-in loose fill, spray foam (open and closed cell), cavity wall insulation, and external wall insulation systems. Each has different cost, performance, and application characteristics.

R-value requirements vary by climate zone. Prices per m² include VAT. U-values and Part L Building Regs apply. Loft insulation grants may be available under ECO4. A professional installer can recommend the right R-value for your location and building type.

The UK ECO4 scheme may fully fund loft and cavity wall insulation for eligible households. TrustMark-registered installers can advise on eligibility.