Cavity Trays

What Cavity Trays does

Cavity Trays Limited is a UK-based specialist manufacturer and supplier of building construction products, founded in 1920 and headquartered in Yeovil, Somerset. The company designs, manufactures, and distributes cavity trays, damp-proofing systems, cavity closers, ventilation products, radon barriers, weeps, roofing accessories, loft access products, and ducting — with 18+ distinct product lines plus a bespoke custom-manufacturing service for non-standard architectural configurations. Its core products are physical building envelope components that address moisture management, gas protection (radon), thermal bridging, and cavity closure at windows, doors, and structural openings, designed to meet UK building regulations and standards.

The company operates a B2B go-to-market model serving three primary customer segments: architects (who specify products via NBS and CPD channels), builders/contractors, and building materials suppliers/stockists. Distribution is executed through a UK-wide stockist and reseller network supplemented by direct phone and email sales support, with no publicly disclosed pricing or online transaction capability. Marketing is conducted through content resources (brochures, installation guides, videos, articles), professional CPD seminars, NBS specification listings, and a presence on Facebook, Twitter, YouTube, and LinkedIn.

Cavity Trays is a privately held, independently owned UK limited company with 11-50 employees and no disclosed parent company, institutional investors, or M&A activity. The firm claims market leadership in its niche, citing over a century of continuous operation and positioning as the UK's leading supplier of cavity trays, though no revenue, patents, certifications, awards, or leadership team information is publicly disclosed.

Name

Cavity Trays

Legal name

Cavity Trays Limited

Website

https://cavitytrays.co.uk

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

11–50 employees

Short description

Cavity Trays Limited is a UK specialist manufacturer founded in 1920, headquartered in Yeovil, producing cavity trays, damp-proofing systems, closers, ventilation, and radon protection products for architects, builders, and building suppliers across the United Kingdom.

Ownership category

akta.pro rank

Headquarters

HQ city

Yeovil

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Building Products Sales: Sale of specialist construction products including cavity trays, weeps, closers, ventilation, radon protection, roofing products, loft access, and ducting to the building and construction sector

Distribution channels2 records

Marketing channels6 records

Core offering

Cavity Trays Limited is a UK-based manufacturer and supplier of specialist building construction products for the damp-proofing, cavity closure, and ventilation market. Its range includes cavity trays (Type X, U, G, E, C, K/BA, M, BWVC), cavity closers (Type V/Caviclosers, Cavicloak/Cavilengths), weeps, radon barriers, roof ventilation, Cavibrick air bricks, loft access products, ducting, and bespoke custom-manufactured cavity trays. The company serves architects, builders, and building materials suppliers across the United Kingdom with products designed to meet UK building regulations.

Product overview

Cavity Trays is a UK-based manufacturer and supplier of building construction materials specializing in damp-proofing, cavity closure, and ventilation solutions. The company operates as a single-product-portfolio manufacturer offering a comprehensive range of cavity trays (including Type X/Advantage, Type U, Type G, Type E, Type C, Type K/BA, Type M, Bay Window Cloak BWVC, and Valley Gutter), cavity closers (Type V/Caviclosers, Cavicloak/Cavilengths), weeps, radon barriers, roof ventilation, air bricks (Cavibrick), loft access products, and ducting. The portfolio also includes bespoke custom-manufactured solutions for non-standard architectural configurations. Products serve architects, builders, and suppliers in the residential and commercial construction sector, addressing moisture management, gas protection, and ventilation requirements throughout building envelopes.

Differentiator

Problem solved

Functional benefit

Products and services

• Type X/Advantage Cavity Tray
• Type U (Undercill Tray) Cavity Tray Cavity tray designed for undercill applications, preventing water penetration at window and door openings for building contractors.
• Type G Cavity Tray Cavity tray variant for general window installations providing damp-proofing protection.
• Type E Cavity Tray Cavity tray model designed for specific building configurations requiring enhanced damp-proofing.
• Type C Cavity Tray Cavity tray for standard window applications providing moisture barrier protection.
• Type K/BA (Circular) Cavity Tray Circular-format cavity tray designed for circular or non-standard window configurations.
• Meter Box Tray (Type M) Specialized cavity tray for meter box installations, providing damp-proofing at utility openings.
• Bay Window Cloak (BWVC) Damp-proofing solution specifically designed for bay window configurations, providing complete cavity closure.
• Valley Gutter (Type VG) Roofing product for managing water drainage in valley gutter configurations.
• Type V/Caviclosers Cavity closer system for sealing window and door openings, combining insulation with damp-proofing.
• Cavicloak and Cavilengths Cavity closure products providing continuous damp-proofing along window and door perimeters.
• Weeps Cavity weep products allowing moisture escape from cavity walls while preventing pest entry.
• Roof Ventilation Products Ventilation products for roof spaces, preventing moisture buildup and ensuring airflow.
• Radon Barriers
• Cavibrick High Performance Air Brick High-performance air brick providing ventilation to cavity walls while maintaining damp-proofing integrity.
• Bespoke Cavity Trays Custom-manufactured cavity trays and damp-proofing products for non-standard architectural requirements, produced to any shape or form to meet specific project requirements.
• Loft Access Products Products for creating accessible loft hatches and openings while maintaining insulation and damp-proofing.
• Ducting Products Ducting products for managing airflow and services through building cavities.

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Catnic (Tata Steel): UK steel lintel and building products manufacturer, part of Tata Steel. Larger incumbent serving the same UK merchant and architectural specification channel with adjacent building envelope products, but at much greater scale than Cavity Trays.
• Sika AG: Swiss-headquartered global construction chemicals and waterproofing manufacturer. Provides competing waterproofing, sealing, and damp-proofing systems at much greater scale and broader geographic reach than Cavity Trays.
• Kingspan Group: Ireland-headquartered global manufacturer of insulation and building envelope systems. Much larger incumbent with overlapping wall-cavity, ventilation, and damp-proofing product lines serving the UK construction market.

Direct peers

• Property Repair Systems: UK supplier of damp-proofing and timber treatment products. Comparable niche specialist serving the same UK remedial and new-build damp-proofing specification channel as Cavity Trays.
• Glidevale: UK manufacturer of building ventilation, cavity closers, and roofing ventilation products. Direct overlap with Cavity Trays on closers and ventilation categories, serving the same UK architectural specification channel.
• Wykamol Group: UK manufacturer of damp-proofing, waterproofing, and radon protection products. Direct overlap with Cavity Trays on radon barriers and damp-proof course products for the UK building and remediation market.
• Manthorpe Building Products: UK manufacturer of cavity trays, closers, weeps, and roof ventilation products. Closest direct competitor to Cavity Trays in terms of product range, customer base (UK builders' merchants), and specification channel.
• Timloc Building Products: UK manufacturer of cavity closers, air bricks, and roof ventilation components. Overlaps with Cavity Trays on closers and ventilation, targeting the same builder's merchant and architectural specification customers.
• Safeguard Europe: UK specialist in damp-proofing and structural waterproofing systems. Comparable as a specialist damp-proofing supplier to the same UK construction and remedial trades market that Cavity Trays serves.

Regional players

• Eurocell Building Plastics: UK PVC building products manufacturer and merchant (roofline, windows, drainage). UK-focused and comparable as a regional building envelope products specialist, though broader in scope than Cavity Trays' damp-proofing focus.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/CavityTrays
• YouTubeyoutube.com/@CavityTraysyeovil
• Facebookfacebook.com/CavityTraysLtd
• LinkedInlinkedin.com/company/cavity-trays-limited

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cavity Trays