SO Modular
SO Modular (Sevenoaks Modular Limited) designs and manufactures prefabricated timber frame structures — panels, floor cassettes, and roof systems including its proprietary BBA-approved Triso-Warm panel — for national home builders, housing associations, local authorities, and self-builders across England and Wales.
- Company typePrivate
- Founded1996
- HeadquartersNeath, United Kingdom
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What SO Modular does
SO Modular (legal entity Sevenoaks Modular Limited, parent Hale) is a UK-based designer and manufacturer of prefabricated timber frame structures, founded in 1996 by Jonathan Hale and headquartered at a 60,000 sq ft manufacturing facility in Neath, Wales. The company produces four core product categories — Modular complete wall systems, Timber Frame panels (including the proprietary BBA-approved Triso-Warm system), Roofs (trusses, cassettes, attic rooms), and Floors (I-joists, Posi-joists, floor cassettes) — with options for factory-fitted windows, doors, electrics, plumbing, and external cladding. Its flagship Triso-Warm panel, exclusive to SO Modular, achieves U-values as low as 0.14 W/m2K and is certified under BBA approval 19/5680; its manufacturing facility is powered by a waste-timber biomass boiler.
The company operates a sales-led, project-based business model, offering either supply-only or supply-and-eread services to a customer base that spans national home builders (ENGIE, Dawnus, Hale Construction, Jehu), housing associations (notably Pobl Group as a repeat customer), local authorities, hospitality operators (Bluestone National Park Resort — 115 lodges across two phases), and self-builders. Revenue is generated through bespoke project quotations ranging from individual self-builds to 100+ dwelling developments, with case-study evidence of contracts up to 144 dwellings. The go-to-market combines a website, case-study-driven content marketing, and Business Development Managers handling enterprise relationships; projects are delivered across England and Wales.
Governance remains founder-led, with Jonathan Hale as CEO and Charlotte Hale as Company Director, supported by a functional management team covering production, technical innovation, HSE, contracts, quantity surveying, and data protection. The company has accumulated a strong certification stack (BBA, BOPAS, CE Mark, STA, SSIP, FSC, PEFC, TRADA) that is essentially table-stakes for UK offsite public-sector work, and it has a research partnership with Swansea University's SPECIFIC Innovation and Knowledge Centre on the Active Homes 'Buildings as Power Stations' demonstrator. Revenue and headcount are not publicly disclosed in detail beyond the 80+ employees referenced in its Modern Slavery statement.
SO Modular firmographics
Firmographics- Name
- SO Modular
- Legal name
- Sevenoaks Modular Limited
- Website
- https://somodular.co.uk
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- SO Modular (Sevenoaks Modular Limited) designs and manufactures prefabricated timber frame structures — panels, floor cassettes, and roof systems including its proprietary BBA-approved Triso-Warm panel — for national home builders, housing associations, local authorities, and self-builders across England and Wales.
- Ownership category
- akta.pro rank
SO Modular industry classification
Industry- Product category
- Prefabricated Timber Frame Construction
- NAICS
- Prefabricated Wood Building Manufacturing (321992), Veneer, Plywood, and Engineered Wood Product Manufacturing (3212)
- SIC
- Prefabricated Wood Bldgs & Components (2452), Millwood, Veneer, Plywood, & Structural Wood Members (2430)
- akta.pro primary industry
- Mass Timber Panels & Components (DLT, NLT, Hybrid Panels) (IMAMACAG)
- akta.pro secondary industry
- Engineered Wood Flooring Substrates & Panels (IMAMACAL)
Keywords
Where SO Modular is headquartered
LocationHeadquarters
- HQ city
- Neath
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
SO Modular business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Timber Frame Components: Design, manufacture, and supply of timber frame components including wall panels (open, closed, Triso-Warm), floor cassettes, roof trusses, and roof cassettes to contractors, housing associations, and self-builders across England and Wales.
- Design, Supply and Erect: Full-service offering including design, manufacture, and on-site erection of timber frame structures. Offers both supply-only and supply-and-erect options to meet individual client needs.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Bespoke project-based quotation |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
SO Modular product offering
Product offeringCore offering
SO Modular designs and manufactures prefabricated timber frame structures including wall panels, floor cassettes, and roof systems for the construction industry. The company offers both supply-only and supply-and-erect service options, covering the full process from quotation, CAD design, factory manufacture, delivery, and on-site erection. Their proprietary Triso-Warm panel system provides BBA-approved high-performance insulated wall panels achieving U-values as low as 0.14 W/m²K. Products serve residential developments, extra care facilities, education, commercial, and hospitality projects across England and Wales.
Product overview
SO Modular (Sevenoaks Modular Ltd) offers a comprehensive timber frame construction system comprising four core product categories: Modular complete wall panel systems, Timber Frame prefabricated panels (including the proprietary Trisowarm, Open Panels, Closed Panels, and Spandrel & Gable Panels), Roofs (including Roof Trusses, Roof Cassettes, and Attic Rooms), and Floors (including Posi-Joists, I-Joists, and Floor Cassettes). Their Trisowarm panel is the flagship technology—a BBA-approved fully insulated timber-frame wall panel that achieves exceptional thermal efficiency (U-values as low as 0.14 W/m2K). The modular approach incorporates factory-fitted components including windows, doors, electrical, plumbing, and external cladding for rapid on-site installation. The product architecture follows an integrated system where timber frame panels serve as the structural core, complemented by engineered flooring and roofing solutions, all designed using in-house CAD capabilities.
Differentiator
Problem solved
Functional benefit
Brands
- Trisowarm: A fully insulated, environmentally friendly timber-frame wall panel developed exclusively by Sevenoaks Modular. Thermally efficient product achieving U-values as low as 0.14 W/m2K, potentially negating the need for conventional central heating.
Products and services
- Modular Complete wall panel systems using Closed or Triso-Warm panels for faster on-site installation, incorporating factory-fitted electrics, plumbing, doors, windows, and external cladding. Designed for clients wanting rapid modular construction with maximum factory pre-completion.
- Timber Frame Prefabricated timber frame panels providing comprehensive solutions for modern house building, including traditional open panels, virtually-finished closed panels, and complete envelope Triso-warm panel options. Available with U-values from 0.25 down to 0.10 W/m²K.
- Roofs Pre-engineered and factory-manufactured roofing options including roof trusses, roof cassettes, and attic room solutions, with in-house CAD design and structural calculations. Roof cassettes come ready-battened and sheathed with protective waterproof membrane.
- Floors Manufactured I-joists and Posi-joists for use in modular floor cassettes, with in-house CAD design, structural calculations, and ancillary schedules. Floor cassettes are pre-engineered to meet design requirements including support conditions, load conditions, and floor penetrations.
- Design, Supply and Erect Service Full-service offering including design, manufacture, delivery, and on-site erection of timber frame structures. Guides clients through the entire process with dedicated project management from quotation through to build completion. Available alongside a supply-only option.
Quantifiable outcome
- Timber frame requires 20-40% fewer on-site labour days
- +9 more outcomes
Companies that use SO Modular
Customer profileNamed customers14 records
Segments5 records
Ideal customer profiles5 records
SO Modular technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
SO Modular partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- SPECIFIC Innovation and Knowledge Centre (Swansea University)corePartnership with Swansea University's SPECIFIC Innovation and Knowledge Centre for the Active Homes development. This 16-unit residential project incorporates integrated renewable technologies and energy efficient materials to create 'Buildings as Power Stations'. The collaboration enables development of innovative low-cost energy positive housing solutions.
Scale indicators8 records
Recent moves7 records
Expansion highlights4 records
SO Modular competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
SO Modular social profiles
Digital presenceSO Modular compliance and trust
Trust signalCompliance9 records
SO Modular financial estimates
Financial estimateRevenue estimate
Valuation estimate
SO Modular leadership team
Management profileNumber of profiles
Profiles11 records
SO Modular funding detail
Funding detailFunding overview
Funding rounds1 record
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SO Modular 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 SO Modular
What does SO Modular do?
SO Modular designs and manufactures prefabricated timber frame structures including wall panels, floor cassettes, and roof systems for the construction industry. The company offers both supply-only and supply-and-erect service options, covering the full process from quotation, CAD design, factory manufacture, delivery, and on-site erection. Their proprietary Triso-Warm panel system provides BBA-approved high-performance insulated wall panels achieving U-values as low as 0.14 W/m²K. Products serve residential developments, extra care facilities, education, commercial, and hospitality projects across England and Wales.
Is SO Modular a public or private company?
SO Modular is a private company. It is classified as family owned and is currently operating.
When was SO Modular founded?
SO Modular was founded in 1996. It employs 101 to 250 people.
Where is SO Modular based?
SO Modular is headquartered in Neath, United Kingdom, in the Europe region.
How does SO Modular make money?
Two revenue lines are on record. Timber Frame Components are the primary driver. The others are design, Supply and Erect.
Does SO Modular have an API?
No public API is recorded for SO Modular.
What industry is SO Modular in?
SO Modular's product category is Prefabricated Timber Frame Construction. Its primary akta.pro industry code is IMAMACAG, Mass Timber Panels & Components (DLT, NLT, Hybrid Panels), with a secondary code of IMAMACAL, Engineered Wood Flooring Substrates & Panels. Its NAICS code is 321992 and its SIC code is 2452.