Marmox
- Company typePrivate
- Founded1999
- HeadquartersChartham, United Kingdom
- Headcount11–50
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Marmox does
Marmox UK Ltd is a privately held UK manufacturer of construction insulation and waterproofing materials, incorporated in 1999 and headquartered in Chatham, Kent. The company designs and produces XPS (extruded polystyrene) boards with a patented polymer-concrete and fibreglass-mesh surface, sold under sub-brands including Multiboard (multi-purpose tilebacker/insulation), Thermoblock (load-bearing thermal insulation eliminating cold bridging at wall-floor junctions), Soundboard (impact sound reduction for tiled floors), Fireboard (A1 non-combustible mineral wool board launched 2024), and Showerlay (pre-sloped wetroom floor formers). All products are BBA certified and supported by BRE-accredited thermal junction details and CE/UKCA/ETA compliance documentation.
The business operates a sales-led, channel-mediated B2B go-to-market, distributing through major national building merchants and a network of independent stockists across the United Kingdom and Ireland. Quote-based pricing means revenue mechanics are transactional and project-driven, with no disclosed list prices or subscription element. Customer segmentation is deliberately four-way: architects and specifiers (targeted through RIBA- and RIAI-approved CPD courses and a dedicated business development manager), contractors and tradespeople (targeted through instructional videos, downloads, and trade shows such as UK Construction Week), homeowners undertaking DIY or renovation, and merchants stocking the range. Reference customers cited include Clayton Caravan Park, Pentland Homes, Hill, and Henley Homes' £55m Barnes Hospital-to-apartments scheme.
Underlying revenue is hardware sales of proprietary boards, blocks, shower formers, and accessories (MSP360 adhesive/sealant, washers, dowels, waterproof tape, niches, brackets). The company is founder/family-owned with no disclosed venture or private equity backing, no subsidiaries, no M&A history, and a small employee base of 11–50. Forward product momentum is concentrated in fire-rated extensions (Fireboard, MSP360-Fire) and wetroom system refreshes (Showerlay 2026), with Ireland emerging as the principal geographic frontier beyond the domestic UK base.
Marmox firmographics
Firmographics- Name
- Marmox
- Legal name
- Marmox UK Ltd
- Website
- https://marmox.co.uk
- Company type
- Private
- Founded year
- 1999
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Ownership category
- akta.pro rank
Marmox industry classification
Industry- Product category
- Building Insulation and Waterproofing Materials
- NAICS
- Laminated Plastics Plate, Sheet (except Packaging), and Shape Manufacturing (326130), Adhesive Manufacturing (32552)
- SIC
- Plastics Foam Products (3086), Adhesives & Sealants (2891)
- akta.pro primary industry
- Backer Rods, Tapes & Joint Accessories (IMADAOAL)
- akta.pro secondary industry
- Flooring Installation Materials & Accessories (Adhesives, Grouts, Trims, Transitions) (IMADAJAL)
Keywords
Where Marmox is headquartered
LocationHeadquarters
- HQ city
- Chartham
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Marmox business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Marketing or Sales, Personnel, Technology or R&D
Revenue model
- Building Materials Sales: Marmox generates revenue through direct sales of insulation boards, thermal blocks, shower floor products, and accessories to merchants, contractors, and specifiers across UK and Ireland. Products are sold through major nationals and independent stockists.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Products sold through merchants and stockists - no public pricing available |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Marmox product offering
Product offeringCore offering
Marmox designs and manufactures high-performance construction materials centred on XPS-based insulation boards with a patented polymer-cement and fibreglass mesh surface. Its core range includes Multiboard (waterproof insulation/tilebacker), Thermoblock (load-bearing thermal bridging blocks), Soundboard (impact sound reduction), Fireboard (A1 non-combustible insulation), and Showerlay (pre-sloped wetroom floor systems), supported by adhesives, tapes, and fixing accessories. Products are sold primarily through UK and Irish building merchants and stockists for use by contractors, specifiers, and homeowners.
Product overview
Marmox is a UK-based manufacturer of high-performance building insulation and waterproofing materials, operating since 1999. The product portfolio is organized around a core range of multi-purpose insulation boards (Multiboard, Thermoblock, Soundboard, Fireboard) complemented by specialized wetroom products (Showerlay, niches, sloping boards, bath panels) and a comprehensive accessories line (MSP360 adhesive/sealant, waterproofing tapes, fixing hardware). The Multiboard serves as the flagship product—a BBA-certified XPS-based insulation board combining waterproofing and thermal properties used across walls, floors, ceilings, and as tilebacker. Thermoblock addresses thermal bridging at wall/floor junctions with load-bearing insulation blocks. Soundboard provides acoustic isolation for tiled floors, while Fireboard (launched 2024) offers A1 non-combustible mineral wool insulation for fire-critical applications. Wetroom products include pre-sloped Showerlay trays, tileable niches, curved boards, and pipe boxing. All products are distributed through merchants and are designed for professional contractors and specifiers in the UK and Irish construction markets.
Differentiator
Problem solved
Functional benefit
Brands
- Thermoblock: Load bearing thermal insulation blocks designed to eliminate cold bridge at wall/floor junction.
- Multiboard
- Fireboard
- Soundboard
- Showerlay
- MSP360
- Thermoblock-PIR
Products and services
- Multiboard BBA-certified waterproof insulation board combining XPS foam core with polymer cement and fibreglass surface, designed for use on walls, floors, ceilings, and as tilebacker. Available in thicknesses from 4mm to 60mm and dimensions up to 1200x2400mm. Used by contractors, specifiers, and homeowners for combined waterproofing and thermal insulation.
- Thermoblock Load-bearing thermal insulation block made from XPS, polymer cement, and fibreglass with embedded concrete mini-columns. Replaces the bottom layer of blocks in a wall to eliminate cold bridging at wall/floor junctions. Thermal conductivity 0.05 W/mK and compressive strength 9 N/mm². Used by specifiers and contractors for SAP/SBEM compliance.
- Soundboard Impact sound reduction board for tiled floors featuring a rubber foam layer between XPS and polymer cement layers. Provides approximately 20dB impact sound reduction and decoupling to prevent tile cracking. Used by contractors and homeowners on tiled floors in flats, apartments, and multi-occupancy buildings.
- Fireboard A1 non-combustible mineral stone wool board with Marmox honeycomb cement-based coating, providing fire protection, sound absorption (up to 23dB), and thermal insulation (0.037 W/mK) in one board. Used for internal and external wall insulation applications where fire performance is critical.
- Showerlay Pre-sloped wetroom floor panels with integral drainage for creating level-access tiled shower areas. Features waterproof fleece layer and compatibility with Marmox VIVA Drain Waste system. Available in centre, offset, and linear drain configurations from 900x900mm to 1500x1500mm. Used by bathroom fitters, contractors, and homeowners for wetroom installations.
- Mineral Rock
Quantifiable outcome
- Thermoblock reduces thermal bridging at wall/floor junctions achieving lower y values for building regulation compliance
- +2 more outcomes
Companies that use Marmox
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles4 records
Marmox technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Marmox partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core and minor.
- Royal Institute of the Architects of Ireland (RIAI)coreRIAI approved Marmox CPD on Reducing Thermal Bridging at Wall-Floor Junctions specifically rewritten for Irish market and Technical Guidance Document L compliance.
- Pert Bruce ConstructionminorContractor using Marmox Thermoblock and MSP360 for Clayton Caravan Park swimming pool project in Fife. Site agent Mark Macpherson reported straightforward installation.
- Montgomery Forgan AssociatesminorArchitecture firm specifying Thermoblock for Clayton Caravan Park project. Project Architect Joe Narsapur has been specifying Thermoblock for 5 years for cold-bridging solutions.
- Building Research Establishment (BRE)coreBRE provides third-party accredited thermal modelling and certification for Marmox Thermoblock junction details. Certified thermal details available for SAP/SBEM calculations.
- British Board of Agrément (BBA)coreBBA provides product certification for Multiboard and Thermoblock, demonstrating fitness for purpose for building applications.
- Royal Institute of British Architects (RIBA)coreRIBA approved Marmox CPD training programs including courses on thermal bridging and waterproofing for architects.
Scale indicators2 records
Recent moves6 records
Expansion highlights6 records
Marmox competitors and assessment
Company assessmentBroad incumbents
- BASF (Styrodur / Neopor): BASF produces Styrodur XPS and Neopor graphite-enhanced EPS as raw-material/finished-product insulation boards with global scale. It supplies raw XPS and finished boards to construction markets, competing with Marmox at both upstream and finished-product levels.
- Knauf Insulation: Knauf produces rock mineral wool, glass mineral wool, and rigid foam insulation boards with global manufacturing scale. Its Fireboard-equivalent mineral wool ranges overlap directly with Marmox Fireboard, and its broader insulation portfolio competes across most of Marmox's wall and floor categories.
- British Gypsum (Saint-Gobain): Saint-Gobain's British Gypsum brand offers a broad UK portfolio of plasterboard, drywall, and insulation products. It overlaps with Marmox's wall-lining and insulation categories as part of a much wider building-products portfolio serving the same specifier and merchant channels.
Direct peers
- Schlüter-Systems: Schlüter-Systems manufactures tile installation products including waterproofing membranes (KERDI), uncoupling mats (DITRA), and pre-formed shower systems. It directly competes with Marmox in waterproofing/decoupling and wetroom system categories across European and North American markets.
- James Hardie (Hardiebacker): James Hardie's Hardiebacker cement tilebacker boards directly compete with Marmox Multiboard in tile/lining applications for bathrooms, wetrooms, and kitchens across UK and international construction markets.
- Celotex (Kingspan): Celotex, owned by Kingspan, is a leading UK manufacturer of PIR and XPS rigid insulation boards. It serves the same UK housebuilder, contractor, and merchant channels as Marmox with overlapping thermal insulation product lines.
- Wedi GmbH: German manufacturer of XPS-based waterproof tilebacker boards and pre-formed wetroom shower elements (e.g., Fundo). Directly competes with Marmox Multiboard and Showerlay in waterproof building panels for wetroom and tile applications across European construction markets.
- Unilin Insulation (Xtratherm): Unilin (formerly Xtratherm) is an Irish manufacturer of high-performance PIR and XPS rigid insulation boards serving the UK and Irish construction markets. Directly overlaps with Marmox in thermal-bridging and rigid insulation product categories in the same geographic footprint.
Emerging players
- Promat (Etex): Promat, part of Belgium-based Etex, manufactures fire-protective building boards for structural steel, timber, and high-temperature applications. It overlaps with Marmox Fireboard specifically in fire-rated board applications in commercial and high-rise construction.
Regional players
- Impey Showers: Impey is a UK specialist in level-access wetrooms and shower-floor formers, with Aqua-Dec and equivalent pre-formed shower tray systems. It directly competes with Marmox Showerlay in the UK wetroom installer and merchant market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Marmox social profiles
Digital presenceMarmox compliance and trust
Trust signalCompliance12 records
Marmox financial estimates
Financial estimateRevenue estimate
Valuation estimate
Marmox leadership team
Management profileNumber of profiles
Profiles1 record
Marmox funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Marmox 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 Marmox
What does Marmox do?
Marmox designs and manufactures high-performance construction materials centred on XPS-based insulation boards with a patented polymer-cement and fibreglass mesh surface. Its core range includes Multiboard (waterproof insulation/tilebacker), Thermoblock (load-bearing thermal bridging blocks), Soundboard (impact sound reduction), Fireboard (A1 non-combustible insulation), and Showerlay (pre-sloped wetroom floor systems), supported by adhesives, tapes, and fixing accessories. Products are sold primarily through UK and Irish building merchants and stockists for use by contractors, specifiers, and homeowners.
Is Marmox a public or private company?
Marmox is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Marmox founded?
Marmox was founded in 1999. It employs 11 to 50 people.
Where is Marmox based?
Marmox is headquartered in Chartham, United Kingdom, in the Europe region.
How does Marmox make money?
One revenue line is on record: building Materials Sales.
Who are Marmox's main competitors?
Broad incumbents on record are BASF (Styrodur / Neopor), Knauf Insulation and British Gypsum (Saint-Gobain). Direct peers are Schlüter-Systems, James Hardie (Hardiebacker), Celotex (Kingspan), Wedi GmbH and Unilin Insulation (Xtratherm). Promat (Etex) is listed as an emerging player. Impey Showers is listed as a regional player.
Does Marmox have an API?
No public API is recorded for Marmox.
What industry is Marmox in?
Marmox's product category is Building Insulation and Waterproofing Materials. Its primary akta.pro industry code is IMADAOAL, Backer Rods, Tapes & Joint Accessories, with a secondary code of IMADAJAL, Flooring Installation Materials & Accessories (Adhesives, Grouts, Trims, Transitions). Its NAICS code is 326130 and its SIC code is 3086.