What Plasmor does

Plasmor Limited is a privately held UK manufacturer of concrete building products, established in 1959 and headquartered in Knottingley, West Yorkshire. The company produces a catalogue of more than 1,000 concrete products, organised principally into Building Blocks (covering ultra lightweight, lightweight, dense aggregate, and low carbon categories) and the Plaspave block paving range for landscaping applications. Its core proprietary technology is FIBOLITE, an ultra-lightweight load-bearing aggregate block made from expanded clay nodules produced in-house via a pyrogenic rotary kiln process; this feeds into the Stranlite product family and underpins the 2024 launch of Synerg.Eco, marketed as London's lowest carbon block and manufactured with CEM I cement from 100% recycled or reclaimed aggregates. Distribution is executed through a wholly-owned logistics subsidiary, Translift Freight Limited, which operates over 200 road vehicles and 100 converted railway wagons on dedicated daily block trains into two South of England/London distribution depots, complemented by a national network of contractor stockists and divisional offices.

Plasmor's revenue model is straightforward industrial goods sales: it manufactures and sells concrete blocks and paving on a quote-based unit pricing model with multi-year contract terms, supported by in-house technical services (U-value calculator, air pressure testing, SAP rating support) and a dedicated technical helpline. Customer segments span house building, commercial and industrial construction, and prestigious landmark projects, with named enterprise accounts including Allied London, Foster & Partners, BAM, the Co-operative Group, Manchester Metropolitan University, and Manchester City FC Training Academy, alongside a long tail of regional housebuilders served through stockists. Certifications include UKCA marking, BSI quality assurance, BS EN 13501-1 A1 non-combustibility, and Part L/Part E compliance, plus published Environmental Product Declarations across the range. The company employs between 251 and 500 people, has no public listing, no disclosed external funding, and no stated M&A activity beyond the integration of Translift Freight.

Name

Plasmor

Legal name

Plasmor Limited

Website

https://plasmor.co.uk

Company type

Private

Founded year

1959

Operating status

Operating

Headcount range

251–500 employees

Short description

Plasmor is a privately held UK manufacturer founded in 1959 that produces over 1,000 concrete building blocks and Plaspave paving products from Knottingley, distributing nationwide via its Translift Freight rail and road logistics subsidiary to housebuilders, commercial contractors, and prestige project clients.

Ownership category

akta.pro rank

Product category

Concrete Building Materials

NAICS

Cement and Concrete Product Manufacturing (3273)

SIC

Concrete, Gypsum & Plaster Products (3270)

akta.pro primary industry

Pavers & Permeable Paving Blocks (Clay/Concrete) (IMADABAH)

Keywords

• Concrete building blocks
• Concrete block paving
• Lightweight aggregate blocks
• Low carbon blocks
• Construction materials manufacturer

Headquarters

HQ city

Knottingley

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Concrete Building Products Manufacturing and Sales: Plasmor manufactures and sells a comprehensive range of over 1000 concrete products including building blocks and block paving (Plaspave) to the UK construction industry, serving both private and public sectors. Revenue is generated through product sales via a national stockist and contractor network.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Plasmor manufactures and sells a comprehensive range of over 1,000 concrete building products for the UK construction industry, centred on building blocks (Ultra Lightweight, Lightweight, Dense Aggregate, and Low Carbon) under brands including Stranlite, Fibolite, and Synerg.Eco, plus Plaspave concrete block paving for landscaping. The company also provides in-house technical services such as U-value calculation, air pressure testing, and SAP rating support, with national distribution via contractor stockists and its own Translift Freight logistics subsidiary.

Product overview

Plasmor is a UK-based manufacturer of concrete building products supplying a comprehensive range of over 1000 concrete products to the construction industry since 1959. The product portfolio centers on building blocks (including the flagship Synerg.Eco low carbon blocks and Stranlite ultra lightweight blocks) and Plaspave block paving solutions, supported by technical services such as U-value calculations and air pressure testing. The company operates across multiple manufacturing locations with dedicated logistics through its Translift Freight subsidiary.

Differentiator

Problem solved

Functional benefit

Brands

• Synerg.Eco: Low carbon building block product line made with CEM I, marketed as London's lowest carbon block
• Plaspave
• Stranlite
• Translift Freight

Products and services

• Building Blocks

Quantifiable outcome

• Lowest carbon block in London (Synerg.Eco with CEM I)
• +4 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Translift Freight LimitedcoreOthersTranslift Freight Limited is a member of the Plasmor Group of Companies contributing significantly to Plasmor's success through dedicated, reliable, flexible and consistent deliveries of concrete products. Translift operates a fleet of over 200 vehicles and 100 rail wagons, including crane-off-load block delivery vehicles, tipper and tanker vehicles, and a unique rail freight system for daily block deliveries. All drivers are trained in CPC, SAFED, ALLMI, CPCS, and EPIC. Fleet is silver Accredited in FORS (Fleet Operator Recognition Scheme) and members of the Freight Transport Association (FTA) and Private Wagon Federation (PWF).

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Aggregate Industries: Major UK subsidiary of LafargeHolcim supplying concrete blocks, paving, cement and aggregates. Direct overlap with Plasmor on concrete block and block paving products serving UK construction.
• Tarmac (CRH): UK-wide CRH subsidiary producing concrete blocks, ready-mix concrete, asphalt and cement. Competes head-on with Plasmor on commercial and infrastructure block supply.
• Hanson Building Products (Heidelberg Materials): UK arm of Heidelberg Materials producing concrete blocks and aggregates. One of the largest competing block manufacturers serving UK housebuilders and commercial contractors.
• Cemex UK: Global building materials group with UK operations covering ready-mix, aggregates and concrete blocks. Competes with Plasmor especially on infrastructure and commercial projects.

Direct peers

• Forterra: UK-listed manufacturer of concrete blocks (Thermalite, Conbloc), bricks and pre-cast products. Most direct head-to-head competitor in concrete building blocks for UK housebuilding.
• Ibstock Brick: UK building products group producing brick and concrete block solutions including the Supreme and Forticrete block ranges. Comparable vertical mix and channel partners to Plasmor.
• Lignacite: UK independent manufacturer of concrete blocks including lightweight Lignacite blocks. Closest independent competitor in lightweight and specialty block categories.
• Marshalls: UK-listed landscaping and building products company producing concrete block paving, kerbs and flags. Direct overlap with Plasmor's Plaspave block paving range.
• Brett Landscaping: UK concrete paving and landscaping products manufacturer. Competes with Plasmor's Plaspave range in residential and commercial landscaping specifications.
• Supreme Concrete: UK manufacturer of concrete fencing, lintels and building components including decorative paving. Smaller but adjacent specialty concrete products competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 Plasmor