PermaRock Products Ltd
PermaRock Products Ltd designs, manufactures and supplies external wall insulation and insulated render systems in the UK, primarily serving social housing providers, main contractors and the education and healthcare sectors through a registered installer network.
- Company typePrivate
- Founded1984
- HeadquartersLoughborough, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What PermaRock Products Ltd does
PermaRock Products Ltd designs, manufactures and supplies external wall insulation (EWI) and insulated render systems from its headquarters in Loughborough, United Kingdom. Founded in 1984, the company operates two principal insulation platforms — a Mineral Fibre EWI system using dual-density stonewool that achieves an A2-s1,d0 reaction-to-fire classification, and an EPS Premium EWI system incorporating graphite-enhanced expanded polystyrene with a 0.030 W/mK thermal conductivity — alongside a complementary portfolio of decorative finishes (SiliconeUltra K render with nano-quartz technology, Brick Slips, Brick Effect Render, Dry Dash, Silicone Ultra Façade Coating) and accessory systems (Roofline Closure, EPS Plinth). Systems are engineered to enable U-values below 0.15 W/m²K, support Code for Sustainable Homes Levels 4-6 and BREEAM 'excellent' ratings, and the Mineral Fibre system is approved by SWIGA for high-rise applications with a 25-year guarantee.
The company serves a primarily B2B customer base across UK social housing providers (housing associations and local authorities), architects, specifiers and main contractors, the education sector (Department for Education new-build and academy programmes), healthcare buildings (NHS trusts and care home operators), public and community buildings, and to a lesser extent private homeowners and landlords. Revenue is generated through product sales (insulation boards, renders, finishes, accessories) to a network of registered installer channel partners — Rendserve, K&E Peck, Express Group Construction, KKMG among them — and through direct technical support to specifiers.
Go-to-market combines (i) a channel-partner motion via trained, registered installers who receive training, technical resources and on-site support, with (ii) direct technical engagement with architects and housing providers delivering U-value calculations, condensation risk analysis, pull-out tests, BIM objects and specifications integrated into the NBS Source platform. The company is privately held, has 11-50 employees, is not listed, and has no disclosed funding rounds or external investors.
PermaRock Products Ltd firmographics
Firmographics- Name
- PermaRock Products Ltd
- Legal name
- Permarock Products Ltd
- Website
- https://permarock.com
- Company type
- Private
- Founded year
- 1984
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- PermaRock Products Ltd designs, manufactures and supplies external wall insulation and insulated render systems in the UK, primarily serving social housing providers, main contractors and the education and healthcare sectors through a registered installer network.
- Ownership category
- akta.pro rank
PermaRock Products Ltd industry classification
Industry- Product category
- External Wall Insulation and Insulated Render Systems
- NAICS
- Mineral Wool Manufacturing (327993)
- SIC
- Concrete, Gypsum & Plaster Products (3270), Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851), Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820)
- akta.pro primary industry
- Insulation & Air/Vapor Barrier Systems (Thermal, Acoustic, WRB/AVB) (IMAFAMAD)
- akta.pro secondary industries
- Foam Plastic Insulation (EPS/XPS/PIR/PUR) (IMADAGAD), Textured Wall Finishes (Plasters, Stucco, Tadelakt) (IMADAKAH), Joint Compounds, Skim Coats & Wall Prep Materials (IMADAKAI)
Keywords
Where PermaRock Products Ltd is headquartered
LocationHeadquarters
- HQ city
- Loughborough
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
PermaRock Products Ltd business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- EWI and Render System Sales: PermaRock designs, manufactures, and supplies external wall insulation systems and decorative render finishes to registered installers, specifiers, and directly to housing providers and contractors. Revenue generated from product sales including insulation boards, render systems, brick slips, and associated accessories.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
PermaRock Products Ltd product offering
Product offeringCore offering
PermaRock Products Ltd designs, manufactures and supplies external wall insulation (EWI) and insulated render systems for new build and refurbishment projects across the UK. Its portfolio covers Mineral Fibre and EPS Premium insulation systems paired with decorative finishes (SiliconeUltra K, Brick Slips, Brick Effect Render, Dry Dash, Silicone Façade Coating), supported by technical services such as U-value calculations, condensation risk analysis, pull-out testing, BIM objects and on-site installer support.
Product overview
PermaRock Products Ltd is a UK-based designer, manufacturer and supplier of external wall insulation (EWI) and render systems with over 40 years of experience. The company's product portfolio centers on two main insulation system types: Mineral Fibre External Wall Insulation Systems (non-combustible stonewool with A2-s1,d0 fire classification) and EPS Premium External Wall Insulation Systems (graphite-enhanced expanded polystyrene). These core insulation systems are complemented by a comprehensive range of decorative finishes including SiliconeUltra K Finish, Brick Slips, Brick Effect Render, Dry Dash, and Silicone Ultra Façade Coating, all available in extensive colour ranges. The product ecosystem is supported by accessory systems such as Roofline Closure Systems and EPS Plinth System, and backed by extensive technical support services including U-value calculations, BIM objects, pull-out testing, and installer training. The systems serve new build and retrofit applications across residential (social housing, private homeowners), educational, healthcare, and commercial sectors.
Differentiator
Problem solved
Functional benefit
Brands
- Permarend: Exterior render systems brand offered by Permarock Products Ltd.
Products and services
- PermaRock Mineral Fibre External Wall Insulation Systems
Quantifiable outcome
- U-values as low as <0.15 W/m²K achievable with 230mm mineral fibre insulation (near Passivhaus standards)
- +5 more outcomes
Companies that use PermaRock Products Ltd
Customer profileNamed customers14 records
Segments7 records
Ideal customer profiles5 records
PermaRock Products Ltd technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
PermaRock Products Ltd partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and major.
- NBS (National Building Specification)corePermaRock is a partner with NBS, enabling their products to be found on NBS Source - a free platform for finding, selecting, and specifying construction products with enhanced data, case studies, and certificates.
- RendservecoreLong-standing PermaRock Registered Installer with extensive experience installing PermaRock EWI systems on numerous projects including education, healthcare, and public buildings.
- K&E Peck LtdcoreSpecialist installer of PermaRock EWI systems on projects including the Nottingham Dental Practice refurbishment and Buckinghamshire care home.
- Express Group ConstructioncorePermaRock Registered Installer with specialist training in installing PermaRock products. Installed EWI on Hopescourt SEN School in Walton-on-Thames.
- KKMGcorePermaRock Registered Installer that installed the EWI system on the Wixams Academy expansion project in Bedfordshire.
- Sustainable Building Services (UK) LtdcoreRepeat partner and specifier working with PermaRock on multiple social housing decarbonisation projects including those for Citizen Housing, Rykneld Homes, and various housing associations.
- SWIGA (Solid Wall Insulation Guarantee Association)corePermaRock is a system founder-member of SWIGA, which approves the Mineral Fibre EWI system for use on high-rise buildings and provides 25-year guarantees backed by SWIGA.
- Tilbury DouglasmajorMain contractor on multiple projects including Tulip Academy Spalding and Waseley Hills High School Rubery where PermaRock EWI systems were installed.
- Willmott DixonmajorMain contractor on multiple education projects including Wixams Academy Bedfordshire and Hopescourt SEN School where PermaRock EWI systems were specified.
Scale indicators8 records
Recent moves6 records
Expansion highlights6 records
PermaRock Products Ltd competitors and assessment
Company assessmentDirect peers
- EWI Pro / K-Rend: EWI Pro (part of the Kilwaughter group alongside K-Rend) is a direct competitor offering EWI systems, renders, and silicone finishes targeted at the same UK social housing and commercial retrofit market.
- Alsecco (DAW Group): Alsecco supplies external wall insulation and render systems in the UK with comparable mineral fibre and EPS-based offerings, finished silicone renders, and decorative façade solutions. Targets the same social housing and commercial specifier base.
- Sto Ltd: Sto is one of the largest manufacturers of external wall insulation and render systems in the UK and Europe. Directly comparable to PermaRock across EWI systems, silicone/silicone-modified renders, and architectural finishes.
- Weber (Saint-Gobain): Weber is a Saint-Gobain brand offering a comprehensive EWI and render systems range, including mineral wool and EPS options, sold through registered installer networks across the UK. Directly comparable product portfolio and channel model to PermaRock.
- Wetherby Building Systems: Wetherby is a UK-based designer and supplier of EWI systems and silicone/silicone-modified renders, with a comparable product range and installer network serving social housing retrofit and new build.
- Baumit UK: Baumit offers a comprehensive EWI and façade render system range in the UK with comparable mineral wool and EPS options, decorative renders, and brick-effect finishes, targeting housing providers and main contractors.
Broad incumbents
- Rockwool UK: Rockwool is the dominant mineral wool insulation manufacturer globally, supplying stonewool insulation boards that compete with PermaRock's mineral fibre EWI. Overlaps on the core insulation input layer rather than full-system supply.
- Kingspan Insulation:
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
PermaRock Products Ltd social profiles
Digital presencePermaRock Products Ltd financial estimates
Financial estimateRevenue estimate
Valuation estimate
PermaRock Products Ltd leadership team
Management profileNumber of profiles
PermaRock Products Ltd funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
PermaRock Products Ltd M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about PermaRock Products Ltd
What does PermaRock Products Ltd do?
PermaRock Products Ltd designs, manufactures and supplies external wall insulation (EWI) and insulated render systems for new build and refurbishment projects across the UK. Its portfolio covers Mineral Fibre and EPS Premium insulation systems paired with decorative finishes (SiliconeUltra K, Brick Slips, Brick Effect Render, Dry Dash, Silicone Façade Coating), supported by technical services such as U-value calculations, condensation risk analysis, pull-out testing, BIM objects and on-site installer support.
Is PermaRock Products Ltd a public or private company?
PermaRock Products Ltd is a private company. It is classified as corporate owned and is currently operating.
When was PermaRock Products Ltd founded?
PermaRock Products Ltd was founded in 1984. It employs 11 to 50 people.
Where is PermaRock Products Ltd based?
PermaRock Products Ltd is headquartered in Loughborough, United Kingdom, in the Europe region.
How does PermaRock Products Ltd make money?
One revenue line is on record: EWI and Render System Sales.
Who are PermaRock Products Ltd's main competitors?
Direct peers on record are EWI Pro / K-Rend, Alsecco (DAW Group), Sto Ltd, Weber (Saint-Gobain), Wetherby Building Systems and Baumit UK. Broad incumbents are Rockwool UK and Kingspan Insulation.
Does PermaRock Products Ltd have an API?
No public API is recorded for PermaRock Products Ltd.
What industry is PermaRock Products Ltd in?
PermaRock Products Ltd's product category is External Wall Insulation and Insulated Render Systems. Its primary akta.pro industry code is IMAFAMAD, Insulation & Air/Vapor Barrier Systems (Thermal, Acoustic, WRB/AVB), with a secondary code of IMADAGAD, Foam Plastic Insulation (EPS/XPS/PIR/PUR). Its NAICS code is 327993 and its SIC code is 3270.