INC

MKM Home Page

No Branch Selected

Free Local Delivery*

Or click & collect in branch

£1000 credit*

Apply For An Account

Get trade discounts

Register today and start saving

Trusted Local Experts

Over 130 branches nationwide

Cavity Insulation

84 products

Elevate your building's energy efficiency with our premium cavity insulation products at MKM Building Supplies. Ideal for reducing heat loss and improving indoor comfort, our cavity insulation range is suitable for a variety of applications, from residential to commercial projects. Available in multiple materials and thicknesses, we ensure you'll find the perfect fit for your construction needs. Our team is here to provide expert advice and support, helping you choose the right insulation solution.

Showing 1 to 20 of 84 items

Showing 1 to 20 of 84 items

Celotex Thermaclass 21, 90 mm, 1190 x 450 mm, 6 Pack, 3.24 M2 Pack
Celotex Thermaclass 21, 90 mm, 1190 x 450 mm, 6 Pack, 3.24 M2 Pack product image

Celotex Thermaclass 21, 90 mm, 1190 x 450 mm, 6 Pack, 3.24 M2 Pack

FREE local delivery

Restrictions apply*

to see available stock and prices

Manthorpe WCMulticor 150mm Cavity Closer 2.44m
Manthorpe WCMulticor 150mm Cavity Closer 2.44m product image
Greener Option-energy

Manthorpe WCMulticor 150mm Cavity Closer 2.44m

Greener Option-energy

FREE local delivery

Restrictions apply*

to see available stock and prices

Unilin Insulation, Cavity Wall Insulation Board, Polyisocyanurate, 90mm, 0.54m2,
Unilin Insulation, Cavity Wall Insulation Board, Polyisocyanurate, 90mm, 0.54m2, product image

Unilin Insulation, Cavity Wall Insulation Board, Polyisocyanurate, 90mm, 0.54m2,

FREE local delivery

Restrictions apply*

to see available stock and prices

Timloc Thermo-Loc Platinum+ Cavity Closer, 150mm x 2.4m
Timloc Thermo-Loc Platinum+ Cavity Closer, 150mm x 2.4m product image

Timloc Thermo-Loc Platinum+ Cavity Closer, 150mm x 2.4m

FREE local delivery

Restrictions apply*

to see available stock and prices

Timloc Thermo-Loc Eps Multi Cavity Closer 2.4M 50-100mm
Timloc Thermo-Loc Eps Multi Cavity Closer 2.4M 50-100mm product image
Greener Option-energy

Timloc Thermo-Loc Eps Multi Cavity Closer 2.4M 50-100mm

Greener Option-energy

FREE local delivery

Restrictions apply*

to see available stock and prices

Rockwool Slab 1200 X 600mm (Pk 4) 2.88M2 100mm
Rockwool Slab 1200 X 600mm (Pk 4) 2.88M2 100mm product image
Greener Option-energy

Rockwool Slab 1200 X 600mm (Pk 4) 2.88M2 100mm

Greener Option-energy

FREE local delivery

Restrictions apply*

to see available stock and prices

Kingspan Thermawall TW50 1200X450X 100mm Cavity Batts Loose Sheets
Kingspan Thermawall TW50 1200X450X 100mm Cavity Batts Loose Sheets product image
Greener Option-energy

Kingspan Thermawall TW50 1200X450X 100mm Cavity Batts Loose Sheets

Greener Option-energy

FREE local delivery

Restrictions apply*

to see available stock and prices

Eco 360 Cavity Therm, 125mm, Internal Angle, 1200mm x 450mm
Eco 360 Cavity Therm, 125mm, Internal Angle, 1200mm x 450mm product image

Eco 360 Cavity Therm, 125mm, Internal Angle, 1200mm x 450mm

FREE local delivery

Restrictions apply*

to see available stock and prices

Rockwool Flexi Slab Insulation, 1200 x 600 x 140 mm, 2.88 M2
Rockwool Flexi Slab Insulation, 1200 x 600 x 140 mm, 2.88 M2 product image

Rockwool Flexi Slab Insulation, 1200 x 600 x 140 mm, 2.88 M2

FREE local delivery

Restrictions apply*

to see available stock and prices

Arc Css100 Fire Rated Cavity Stop Sock, 1200mm x 120mm x 100mm
Arc Css100 Fire Rated Cavity Stop Sock, 1200mm x 120mm x 100mm product image

Arc Css100 Fire Rated Cavity Stop Sock, 1200mm x 120mm x 100mm

FREE local delivery

Restrictions apply*

to see available stock and prices

Knauf RockSilK Flexible Slab, 140 mm, 1200 x 600 mm, 2.16 M2
Knauf RockSilK Flexible Slab, 140 mm, 1200 x 600 mm, 2.16 M2 product image

Knauf RockSilK Flexible Slab, 140 mm, 1200 x 600 mm, 2.16 M2

FREE local delivery

Restrictions apply*

to see available stock and prices

Tremco Nudura One Concrete Form, EPS Material, R-35 Insulation, 457mm Height, MPN NUS-IX496-06
Tremco Nudura One Concrete Form, EPS Material, R-35 Insulation, 457mm Height, MPN NUS-IX496-06 product image

Tremco Nudura One Concrete Form, EPS Material, R-35 Insulation, 457mm Height, MPN NUS-IX496-06

FREE local delivery

Restrictions apply*

to see available stock and prices

Actis Hybris Panels, 1200 x 1145 x 90 mm, 5.49 M2, 4 Per Pack
Actis Hybris Panels, 1200 x 1145 x 90 mm, 5.49 M2, 4 Per Pack product image

Actis Hybris Panels, 1200 x 1145 x 90 mm, 5.49 M2, 4 Per Pack

FREE local delivery

Restrictions apply*

to see available stock and prices

Knauf Masonry Party Wall Slab, 100mm, 6.552 m2
Knauf Masonry Party Wall Slab, 100mm, 6.552 m2 product image

Knauf Masonry Party Wall Slab, 100mm, 6.552 m2

FREE local delivery

Restrictions apply*

to see available stock and prices

Eco 360 Cavity Therm, 125 mm, Full Fill, 1200 X 450 mm
Eco 360 Cavity Therm, 125 mm, Full Fill, 1200 X 450 mm product image

Eco 360 Cavity Therm, 125 mm, Full Fill, 1200 X 450 mm

FREE local delivery

Restrictions apply*

to see available stock and prices

Isover Acoustic Partition Roll, 75mm, 14.64m2 Pack
Isover Acoustic Partition Roll, 75mm, 14.64m2 Pack product image

Isover Acoustic Partition Roll, 75mm, 14.64m2 Pack

FREE local delivery

Restrictions apply*

to see available stock and prices

Cavity Stop Sock, 165mm x 300mm x 1200mm
Cavity Stop Sock, 165mm x 300mm x 1200mm product image

Cavity Stop Sock, 165mm x 300mm x 1200mm

FREE local delivery

Restrictions apply*

to see available stock and prices

Timloc Thermo-Loc Platinum 50mm-100mm Multi Cavity Closer 2.4m
Timloc Thermo-Loc Platinum 50mm-100mm Multi Cavity Closer 2.4m product image
Greener Option-energy

Timloc Thermo-Loc Platinum 50mm-100mm Multi Cavity Closer 2.4m

Greener Option-energy

FREE local delivery

Restrictions apply*

to see available stock and prices

Easi-Close Silver Cavity Closer 2.4m x 50-100mm
Easi-Close Silver Cavity Closer 2.4m x 50-100mm product image
Greener Option-energy

Easi-Close Silver Cavity Closer 2.4m x 50-100mm

Greener Option-energy

FREE local delivery

Restrictions apply*

to see available stock and prices

Actis Hybris Panels, 1200 x 1145 x 140 mm (2.74 M2), 2 Per Pack
Actis Hybris Panels, 1200 x 1145 x 140 mm (2.74 M2), 2 Per Pack product image

Actis Hybris Panels, 1200 x 1145 x 140 mm (2.74 M2), 2 Per Pack

FREE local delivery

Restrictions apply*

to see available stock and prices