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Manthorpe


Manthorpe is a leading British manufacturer of high-quality building components, based in Derbyshire. With over 35 years of experience, the company specialises in designing and producing innovative solutions for the construction industry, with a strong focus on roofing, ventilation, and cavity protection systems.

Their extensive product portfolio includes:

  • Roofing accessories – dry fix systems, tile vents, and underlays
  • Wall and floor ventilation – airbricks, ducting, and weep vents
  • Cavity trays, closers & barriers – for damp prevention and thermal efficiency
  • Loft and access products – hatches, ladders, and fire-rated solutions
  • Rainwater and drainage components – including roof outlets and pipe seals
  • Environmental innovations – such as bat roosting systems and air leakage prevention kits

Manthorpe is known for its commitment to sustainability, precision engineering, and compliance with UK building regulations. All products are designed and manufactured in-house at their Derbyshire facility, using advanced tooling and production techniques. Whether supporting large-scale developments or bespoke builds, Manthorpe delivers practical, reliable, and forward-thinking solutions that help construction professionals build better, safer, and more efficient structures.

Tech. support: 
Brand: Manthorpe Model and Size: G240-100 - 2.5m
Delivery Time: 1 - 2 days
G240 100mm Double Flange Thermal Cavity Closer from Manthorpe Building Products is a high-performance cavity closer designed to provide thermal insulation and moisture control at door and window reveals in cavity wall constructions. Featuring a double flange profile, it offers secure positioning wit..
£67.69
£81.23 inc VAT
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Brand: Manthorpe Model and Size: 165mm x 17mm x 100mm - 6m
Delivery Time: 1 - 2 days
165mm Damcor Insulated Vertical Damp Proof Course (DPC) a rolled insulated DPC designed to provide a thermal break and moisture barrier at door and window reveals where the cavity is closed using a returned blockwork detail. It’s a simple yet highly effective solution to combat cold bridging, conden..
£12.82
£15.38 inc VAT
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Brand: Manthorpe Model and Size: 165mm x 25mm x 100mm - 10m
Delivery Time: 1 - 2 days
165mm Stonecor Insulated Vertical DPC & Fire Barrier a premium-grade insulated damp-proof course (DPC) designed to close cavities using a returned blockwork detail, while also delivering 30 minutes of fire protection. It’s a complete solution for tackling thermal bridging, moisture ingress, and fire..
£28.89
£34.67 inc VAT
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Brand: Manthorpe Model and Size: G245 - 100nos
Delivery Time: 1 - 2 days
G245 Cavity Closer Fixing Clip (Tie) a practical accessory designed to securely anchor Manthorpe cavity closers into masonry walls. Manufactured from durable injection-moulded polypropylene, the clip allows for easy installation and alignment of cavity closers, helping reduce waste and improve build..
£23.00
£27.60 inc VAT
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Brand: Manthorpe Model and Size: 50/70mm - pack of 3
Delivery Time: 1 - 2 days
Redshield Cavity Barrier - 50/70mm is an all-in-one solution designed to meet the fire safety, thermal insulation, and damp-proofing requirements of modern cavity wall construction. Suitable for cavity widths between 50mm and 70mm, this product offers a streamlined approach to compliance with Approv..
£68.90
£82.68 inc VAT
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Brand: Manthorpe Model and Size: 50/70mm - pack of 3
Delivery Time: 1 - 2 days
Redshield Cavity Barrier Rebated - 50/70mm is an all-in-one solution designed to meet the fire safety, thermal insulation, and damp-proofing requirements of modern cavity wall construction. Suitable for cavity widths between 50mm and 70mm, this product offers a streamlined approach to compliance wit..
£68.90
£82.68 inc VAT
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Brand: Manthorpe Model and Size: WCMULTICOR - pack of 6
Delivery Time: 1 - 2 days
WCMULTICOR from Manthorpe Building Products is a versatile, high-performance cavity closer designed to suit cavity widths ranging from 50mm to 100mm. Engineered for ease of use and regulatory compliance, it provides a thermal break, acts as a vertical damp-proof course (DPC), and helps eliminate col..
£58.80
£70.56 inc VAT
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