Proteus Waterproofing

What Proteus Waterproofing does

Proteus Waterproofing Limited is a UK-based manufacturer and supplier of proprietary waterproofing membrane systems, insulation solutions, and integrated roof build-ups, headquartered in Rayleigh, Essex. The company operates a single-entity, private limited company structure with no parent, no external institutional investor identified, and no subsidiaries. Its product portfolio spans cold-applied liquid membranes (Cold Melt®, Pro-Cold®), hot-applied systems (Proteus Hot Melt®), reinforced bitumen systems (Pro-Felt® Ultima Plus, Pro-Felt® Endura Flex, Pro-Felt® Endura AIRdhesive), car park waterproofing (Deckmaster), balcony and walkway coatings (Pro-BW® Plus), green/brown/blue roof systems (Pro-Living®, Attenu8®), and a technical insulation range (Pro-Therm covering EPS, XPS, PIR, mineral wool, cellular glass, and VIP). All major systems are BBA-certified for service lives of 20-35 years (Attenu8® certified for building lifetime) and carry Broof(t4) fire ratings and ISO 9001/14001/45001 compliance.

The company goes to market exclusively through an approved contractor network, with products specified by architects, specifiers, and building professionals (supported by RIBA-approved CPD presentations and NBS platform integration) and installed by trained contractors who unlock insurance-backed guarantees of 20-35 years. Revenue derives from one-time product sales of membrane systems and insulation, supplemented by technical design services (U-value calculations, condensation risk analysis, bespoke specifications) and recurring warranty/guarantee income tied to installed systems. The customer base spans education, healthcare, commercial, retail, leisure and hospitality, public sector, residential, and new build verticals, with notable flagship references including the 40 Leadenhall London development (5,380m² of waterproofing), Marylebone House (75,000 sq m, LRWA Highly Commended), and the Welbourne Development in Tottenham Hale (£100m project, 1,030 homes). The Attenu8® blue roof system is co-developed with ACO Technologies, integrating ACO's patented drainage layer with Proteus membrane technology for stormwater attenuation and SuDS compliance. Pricing is quote-based and not publicly disclosed.

Name

Proteus Waterproofing

Legal name

Proteus Waterproofing Limited

Website

https://proteuswaterproofing.co.uk

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Waterproofing Systems and Building Envelope Membranes

NAICS

Asphalt Paving, Roofing, and Saturated Materials Manufacturing (32412)

SIC

Adhesives & Sealants (2891)

akta.pro primary industry

Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA)

akta.pro secondary industries

Waterproofing Membranes & Systems (Liquid-Applied & Sheet) (IMADAOAC), Building Envelope & Weatherproofing (Roofing/Waterproofing/Gutters) (IMAIABAG)

Keywords

• Waterproofing membranes
• Flat roof systems
• Blue roof solutions
• Bitumen membrane roofing
• Liquid waterproofing coatings

Headquarters

HQ city

Rayleigh

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

Revenue model

1. Waterproofing Systems and Products: Proteus Waterproofing generates revenue through the sale of proprietary waterproofing systems, membranes, and insulation products. Their product range includes liquid applied membranes (Cold Melt®, Pro-Cold®, Pro-BW® Plus), bitumen felt systems (Pro-Felt® Ultima Plus, Pro-Felt® Endura), hot melt systems, and technical insulation solutions (Pro-Therm range). Products are sold through approved contractors and specifiers via the NBS platform.
2. Technical Support and Specification Services: The company provides technical design support, U-value calculations, condensation risk analysis, and specification services for projects. This includes site surveys, condition reports, and bespoke specification development for individual project requirements.
3. Guarantees and Warranties: Proteus offers guarantees ranging from 20-35 years on their systems when installed by approved contractors, providing insurance-backed warranties covering system components.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Proteus Waterproofing manufactures and supplies proprietary waterproofing systems for flat roofs, podiums, balconies, terraces, walkways, car parks, and building envelopes to specifiers, contractors, and building owners in the UK. The portfolio includes cold-applied and hot-applied liquid waterproofing membranes, reinforced modified bitumen felt membranes, an integrated blue roof stormwater attenuation system, liquid balcony coatings, green/brown roof systems, car park waterproofing membranes, and a technical insulation range, all delivered through an approved contractor network with BBA certification and 20–35 year insurance-backed guarantees.

Product overview

Proteus Waterproofing is a waterproofing systems provider delivering a comprehensive portfolio of waterproofing and protection packages for the construction industry. The core product portfolio centers on liquid waterproofing membranes (Cold Melt®, Proteus Hot Melt®, Proteus Pro-Cold®), reinforced bitumen membrane systems (Proteus Pro-Felt® Ultima Plus, Proteus Pro-Felt® Endura Flex, Proteus Pro-Felt® Endura AIRdhesive), and the proprietary Attenu8® blue roof system for stormwater management. Supporting products include Pro-BW® Plus for balconies and walkways, Deckmaster for car parks, Pro-Living® for green/brown roofs, and the Proteus Pro-Therm insulation range. All systems are supported by technical design services, BBA accreditation, and guarantees. The company operates exclusively through approved contractors.

Differentiator

Problem solved

Functional benefit

Brands

• Attenu8®: Complete Blue Roof System for stormwater management and water attenuation
• Cold Melt®
• Proteus Pro-Felt® Ultima Plus
• Proteus Pro-Felt® Endura
• Pro-Living®
• Pro-BW® Plus

Products and services

• Attenu8® Complete Blue Roof System Fully integrated blue roof waterproofing system combining waterproofing, thermal insulation, water attenuation, and drainage in one coordinated package for stormwater management on flat roofs. Incorporates ACO Technologies' patented drainage and overflow layer, is BS EN12056:3 and BS6229:2018 compliant, BBA certified to last for the life of the building, and provides single-point design responsibility with insurance-backed warranties via approved contractors.
• Cold Melt® Membrane Two-part elastomeric polyurethane membrane incorporating recycled rubber crumb and castor oil, delivering seamless cold-applied waterproofing with no fire risk. BBA certified (Certificate 23/6654) for protected roofs, inverted roofs, podium decks, balconies, green roofs, and blue roofs including zero fall designs; compatible with DPM Primer for high-moisture substrates up to 98% RH after 3 days of concrete curing.
• Proteus Pro-Felt® Ultima Plus Membrane System Plastomeric (APP) modified bitumen membrane system for flat or pitched roofs, BBA certified for 30+ years service life. Features mineral capsheet, anti-root options for green roofs, and Broof(t4) fire performance; manufactured under ISO 9001, ISO 14001, and ISO 45001 management systems.
• Proteus Pro-Felt® Endura Flex Warm Roof System Complete warm roof solution combining self-adhesive AVCL with torch-on modified bitumen technology for torch-free installation. BBA certified for 35 years service life with Broof(t4) Fire Performance and manufactured to ISO 9001, ISO 14001 and ISO 45001 standards.
• Proteus Pro-Cold® Membrane Seamless, cold-applied waterproofing membrane for flat roofs, pitched roofs, and built-up roof systems, providing flame-free installation suitable for occupied buildings. Referenced in retail refurbishment projects including Waterstones stores and Hilton Pullman King's Cross.
• Proteus Hot Melt® Membrane Durable hot-applied waterproofing membrane solution for contemporary roofing needs, BBA certified as an effective barrier for the service life of the roof. Used on flagship projects including 40 Leadenhall London.
• Proteus Pro-Therm Technical Insulation Range Technical insulation solutions including EPS, XPS, PIR, Mineral Wool, Cellular Glass, and VIP (Vacuum Insulated Panel) options, supporting tapered/cut-to-fall designs for roof drainage and accompanied by Environmental Product Declaration (EPD) documentation.
• Pro-BW® Plus Balcony and Walkway Coating Liquid-applied, colourfast, UV-stable, skid-resistant protective coating for balconies and walkways. BBA certified for 25+ years with BroofT4 (highest European) fire rating.
• Pro-Living® Green, Brown and Blue Roof Systems Green, brown, and blue roof systems providing ecological benefits, energy efficiency, and rooftop garden or communal space options for new build and refurbishment projects. Uses Cold Melt® membrane as the waterproofing base and powers the Bio-Solar System evidenced at Battersea Dogs and Cats Home.
• Deckmaster Car Park Waterproofing System Elastomeric membrane waterproofing system for car parks and parking decks, providing protection against water ingress, carbon dioxide and chloride ingress, with skid-inhibiting surfaces for pedestrian and vehicle safety. Formulated with solvent-free recycled components, backed by a 20-year guarantee when installed by approved contractors.
• Proteus Pro-Felt® Endura AIRdhesive Membrane Single-ply bituminous membrane with SBS modified bitumen, polyester reinforcement and fleece finish. Can be cold-adhesive bonded, mechanically fixed, or torch applied, providing flexibility at low temperatures and high flow resistance at elevated temperatures.
• Technical Design and Specification Services Bespoke technical design and specification support delivered from project outset through completion, including U-value calculations, condensation risk analysis, tapered/cut-to-falls insulation design, site surveys, condition reports, and development of project-specific specifications for specifiers, contractors, and building owners.

Quantifiable outcome

• Service life: 25-35 years BBA certified depending on product
• +3 more outcomes

Named customers16 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core and flagship.

• ACO TechnologiescoreStrategic or Co-development PartnerACO Technologies partnered with Proteus Waterproofing to develop the Attenu8® blue roof system. ACO's patented drainage and overflow layer technology is integrated into the Attenu8 system, combining ACO's water management expertise with Proteus' waterproofing systems. This partnership enables precise BS EN12056:3 compliant calculations and provides single-point design responsibility with combined insurance-backed warranties.
• NBS (National Building Specification)coreTechnology or IntegrationProteus Waterproofing is available on the NBS platform for specification by architects, building professionals, and specifiers. This enables Proteus products to be directly specified in building projects through the NBS specification system.
• Related Argent PLCflagshipStrategic or Co-development PartnerRelated Argent PLC led the £500m Tottenham Hale regeneration scheme of which the £100m Welbourne development was a flagship project. Proteus Waterproofing provided the Attenu8® blue roof system for this major residential development in partnership with architects CZWG and Pollard Thomas Edwards.
• Approved Contractors NetworkcoreChannel Partner/ Reseller/ DistributorProteus works exclusively with a network of trained and approved contractors who install their waterproofing systems. Contractors receive technical training, on-site guidance, and access to Proteus guarantees. This network ensures quality installation and provides end customers with backed warranties.
• CZWG ArchitectsflagshipStrategic or Co-development PartnerCZWG Architects collaborated with Proteus Waterproofing on the Welbourne Development project, working together on tapered blue roof attenuation system design and integration with surrounding residential blocks and finishes.
• Pollard Thomas EdwardsflagshipStrategic or Co-development PartnerPollard Thomas Edwards Architects partnered with Proteus on the Welbourne Development, collaborating on the blue roof design and integration with the overall development architecture.

Scale indicators6 records

Recent moves1 record

Expansion highlights4 records

Broad incumbents

• Sika: Swiss-headquartered global construction chemicals leader with a substantial waterproofing portfolio (Sarnafil, Sikaplan, Sikalastic) covering roofing and below-ground applications — a global incumbent whose waterproofing line competes across Proteus's categories.
• IKO Group: Global roofing and waterproofing manufacturer with a UK subsidiary offering bitumen membranes, single-ply, and liquid systems; much larger scale and broader portfolio, competing with Proteus across multiple system categories.
• BMI Group: Major European flat and pitched roofing manufacturer (formerly Icopal/Braas) with extensive bitumen and liquid waterproofing ranges — overlapping product set but vastly larger commercial footprint and framework-contract reach.

Direct peers

• Moy Materials: UK and Ireland-based waterproofing membranes and systems provider for flat roofing, green roofs, and structural waterproofing; comparable range of bitumen and liquid-applied systems with similar specification-led channel.
• Newton Waterproofing: UK waterproofing specialist supplying structural waterproofing membranes and systems for below- and above-ground applications; comparable in size, channel model (specifier/contractor), and BBA-driven certification positioning.
• Langley Waterproofing Systems: UK specialist provider of flat roof and structural waterproofing systems with BBA-certified products and an approved-contractor model closely mirroring Proteus's approach across liquid-applied, bitumen, and inverted roof systems.
• Triton Systems: UK waterproofing and damp-proofing systems supplier for structural and below-ground applications; similar size, channel approach, and BBA-certified positioning in the UK specialist waterproofing market.
• Garland UK: UK waterproofing and roofing systems specialist with BBA-certified modified bitumen and cold-applied liquid systems distributed via an approved-contractor network — directly comparable channel and product architecture.
• Axter: UK/Ireland flat-roof waterproofing specialist offering bitumen membranes, liquid systems, and green/blue roof solutions — a near-direct competitor on product mix and contractor-channel go-to-market.

Regional players

• Alumasc Exterior Building Products: UK building envelope products manufacturer including roofing, rainwater, and waterproofing systems; comparable UK specification focus but a broader, more diversified product portfolio than Proteus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

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• Facebookfacebook.com/ProteusWaterproofing

Compliance14 records

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 Proteus Waterproofing