ERW

What ERW does

ERW Joinery Limited, founded in 1979, is a privately-held, family-run bespoke timber joinery manufacturer headquartered in Middlesbrough, North East England. The company designs, manufactures, and installs custom-crafted wooden windows, doors, and outdoor living solutions for residential homeowners — particularly owners of period, heritage, and listed properties — across the North East of England and Yorkshire. The core product range comprises casement windows, vertical and Yorkshire sliding sash windows, aluminium-timber hybrid windows (marketed under the AluWood sub-brand), bifold and patio/French doors, and a broad portfolio of wooden front doors across the Signature and Prestige Collections. All products are manufactured to order using sustainably-sourced European Redwood at a purpose-built workshop in Middlesbrough and finished in over 150 RAL colour options.

The company's technical platform combines traditional joinery craftsmanship with advanced glazing systems, including vacuum glazing (thermal insulation <0.5 W/m²K), slim double glazing, Planitherm low-emissivity coated glass, and the proprietary ERW Draught Seal System. ERW operates a sales-led, direct-to-consumer go-to-market model via its Middlesbrough showroom and workshop, on-site surveys, telephone/email inquiries, and brochure requests; all installation is performed by in-house teams with no subcontracting. Specialist expertise in heritage properties, conservation areas, and listed-building compliance (including planning permission handling) is a recurring focus.

Revenue is generated primarily through one-time bespoke product sales, installation services, and specialist sash-window renovation, supplemented by FCA-authorised credit broking (Firm Reference Number 915157) that enables 12-month interest-free financing on selected products. Pricing is quote-based with a 25% deposit at order and the balance invoiced on completion. The business holds multiple accreditations (BS EN ISO 9001:2008, FENSA, CHAS) and is a member of Made in Britain and the British Woodworking Federation. No revenue, headcount, funding, or external ownership information is publicly disclosed.

Name

ERW

Legal name

ERW Joinery Limited

Website

https://erwltd.co.uk

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

11–50 employees

Short description

ERW Joinery Limited is a family-run, bespoke timber window, door, and outdoor living manufacturer and installer based in Middlesbrough, England, serving residential homeowners — particularly those with period and heritage properties — across the North East and Yorkshire.

Ownership category

akta.pro rank

Product category

Custom Timber Windows and Doors

NAICS

Wood Window and Door Manufacturing (321911), Custom Architectural Woodwork and Millwork Manufacturing (337212)

SIC

Lumber & Wood Products (No Furniture) (2400)

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

akta.pro secondary industries

Window Sash, Frame & Wood Rot Repair (HSAGABAD), Joinery, Millwork & Casework Installation (Cabinetry, Built-Ins) (IMAFANAJ), Window & Door Trim, Casing & Sill Replacement (HSAPAJAK)

Keywords

• Bespoke timber windows
• Wooden front doors
• Sash window renovation
• Aluminium timber hybrid
• Outdoor living solutions

Headquarters

HQ city

Middlesbrough

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure, Others

Revenue model

1. Bespoke Timber Windows and Doors: Custom-manufactured timber windows and doors sold as complete products including frame and factory decoration. Products include wooden front doors, sash windows, casement windows, aluminium-timber hybrid windows, bifold doors, and patio/French doors. All products are bespoke to customer specifications and property requirements.
2. Installation Services: Full installation services provided by internal teams of skilled joiners and fitters. The company handles all aspects from survey through to final installation without subcontracting.
3. Window and Door Renovation: Specialist sash window restoration and renovation services for period properties, listed buildings, and conservation areas. Includes rotten timber removal, draught-proofing, and hardware upgrades.
4. Credit Broking: FCA regulated credit broking services for consumer financing, with 12-month interest-free credit available on selected products. Firm Reference Number 915157.
5. Outdoor Living Products: Aluminium pergolas, glass verandas, and conservatory upgrades that extend living spaces outdoors for year-round enjoyment.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

ERW Joinery Limited is a bespoke manufacturer and installer of premium timber windows, doors, and outdoor living solutions crafted from European Redwood at its purpose-built Middlesbrough workshop. The company custom-manufactures sash windows, casement windows, bifold doors, French/patio doors, and aluminium-timber hybrid windows, alongside a full installation and sash window restoration service. It specialises in serving period properties, listed buildings, and conservation areas across the North East and Yorkshire.

Product overview

ERW is a bespoke timber windows, doors, and outdoor living solutions provider based in Middlesbrough, North East England, operating since 1979. The company offers a comprehensive portfolio of custom-crafted products organised into three core categories: Wooden Windows (including Casement, Vertical Sash, Yorkshire Sash, and Aluminium Windows), Wooden Front Doors (with two collections: the Signature Collection featuring Contemporary, Eco-Contemporary, and the Prestige Collection featuring Eton, York, Kensington, Thornton, Linthorpe, Maltby, Oxford, Davenport, Hampton, Glenmore, Rockingham, Sherwood, Denver, Manhattan, Kielder), and Outdoor Living solutions (Aluminium Pergolas, Glass Verandas, Conservatories). Additional offerings include Bifold Doors, Patio/French Doors, Secondary Glazing, Vacuum Glazing, Sash Window Repair, and Double Glazed Energy Saving Sashes. All products are manufactured to order using European Redwood and finished in over 150 RAL colour choices.

Differentiator

Problem solved

Functional benefit

Brands

• AluWood: Aluminium timber hybrid windows combining the warmth and contemporary appeal of timber with the outstanding resilience, strength and low maintenance of aluminium.

Products and services

• Vertical Sash Windows Slim double glazed vertical sash windows crafted from European Redwood to match period property styles, available with traditional cords and weights or spiral balance mechanisms, featuring the ERW draught seal system and traditionally styled ironmongery.
• Casement Windows Timber casement windows inspired by classic Tudor and Georgian designs, manufactured from sustainable European Redwood with energy-efficient glazing, multi-point locking systems, and over 150 RAL colour finishes.
• Yorkshire Sash Windows Horizontal sliding wooden sash windows custom-designed to replicate original Yorkshire-style windows, manufactured from European Redwood with dual weather seals, concealed rollers, and sash fasteners.
• Aluminium-Timber Hybrid Windows (AluWood) Aluminium-timber hybrid windows combining timber warmth with aluminium resilience, marketed under the AluWood sub-brand, featuring thermal efficiency technology and over 150 colour finishes.
• Wooden Front Doors (Signature and Prestige Collections) Bespoke timber front door collection including the Signature Collection (Contemporary, Eco-Contemporary) and the Prestige Collection (Eton, York, Kensington, Thornton, Linthorpe, Maltby, Oxford, Davenport, Hampton, Glenmore, Rockingham, Sherwood, Denver, Manhattan, Kielder), available in 58-68mm insulated timber with multi-point locking.
• Bifold Doors Custom-crafted timber bifold doors using sustainably sourced timber and premium glazing, available in inward/outward opening and various folding configurations with multi-point security locking.
• Patio/French Doors Custom-made timber patio and French doors with multi-point locking systems for thermal efficiency and security, finished in over 150 RAL colours.
• Sash Window Repair and Restoration Specialist sash window restoration service for period properties and listed buildings, including rotten timber removal, full draught-proofing with the ERW Draught Seal System, security upgrades, and leaded window encapsulation.
• Vacuum Glazing Ultra-slim vacuum glazing technology offering thermal insulation value of less than 0.5W/m2K, nearly twice as efficient as triple glazing, designed for heritage properties where slim profiles are required.
• Secondary Glazing Secondary glazing installed discreetly inside existing sash window frames, providing an extra insulation layer for warmer winter and cooler summer conditions, suitable for Grade I and II listed buildings.
• Double Glazed Energy Saving Sashes High-performance slim double glazing units installed discreetly inside existing sash windows, reducing heat loss by up to 65% and noise levels by up to 80%.
• Aluminium Pergola Aluminium pergola available in Essential and Elegance ranges providing outdoor living space with weather protection, with options for integrated LED lighting, RGB lighting, and glass room upgrades.
• Glass Verandas (Upsall, Californian Contemporary, Stapylton) Aluminium and glass veranda systems glazed with 6mm toughened glass, including the Upsall, Californian Contemporary, and Stapylton designs, offering weather protection for outdoor living spaces.
• Conservatory Upgrades Timber-framed conservatory roof and side wall replacements with specially-formulated heat-reflecting coatings enabling year-round use, retaining existing brick walls and foundations to reduce costs.

Quantifiable outcome

• Vacuum glazing thermal insulation value of less than 0.5W/m2K - nearly twice as efficient as triple glazing and ten times more efficient than single glazing
• +4 more outcomes

Named customers10 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

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Financial Conduct Authority (FCA)coreOthersERW Joinery Limited is authorised and regulated by the FCA for Full Permission Credit Broking. Firm Reference Number 915157. This regulatory partnership enables the company to offer consumer financing options including 12-month interest-free credit on selected products.
• Made in BritaincoreStrategic or Co-development PartnerCertified member of the Made in Britain organisation, using the official Mark on products and marketing materials to demonstrate British manufacturing heritage and quality standards.
• British Woodworking Federation (BWF)coreStrategic or Co-development PartnerMember of the British Woodworking Federation, the trade association for the woodworking and joinery manufacturing sector in the UK.
• FENSA (Fenestration Self-Assessment Scheme)coreStrategic or Co-development PartnerRegistered with FENSA, the largest fenestration industry self-certification scheme for replacement windows and doors in England and Wales, ensuring compliance with Building Regulations.
• CHAS (Contractors Health and Safety Assessment Scheme)coreStrategic or Co-development PartnerCHAS accredited, demonstrating the company's commitment to health and safety standards in construction and installation operations.
• Financial Ombudsman ServiceminorOthersCustomer complaint escalation pathway. If customers are not satisfied with company responses, they may contact the Financial Ombudsman Service at Exchange Tower, London, E14 9SR.
• Vove AgencyminorOthersCommunications agency responsible for website and marketing communications as noted in footer.

Scale indicators4 records

Expansion highlights5 records

Direct peers

• The Sash Window Workshop: UK specialist manufacturer and installer of bespoke timber sash windows for period properties and conservation areas with in-house survey-to-installation delivery, directly comparable to ERW's core sash window restoration and replacement offering.
• Dale Joinery: UK bespoke timber window and door manufacturer serving heritage and high-end residential customers with engineered timber products, directly comparable to ERW's bespoke European Redwood windows and doors portfolio.
• Mumford & Wood: UK manufacturer of premium timber windows, doors and screens for heritage, conservation and high-end residential projects, mirroring ERW's craftsmanship-led, listing-compliant positioning.
• Ventrolla: UK heritage-window specialist focused on sash window restoration, draught-proofing and replacement for listed buildings. Closely comparable to ERW's sash window repair service and conservation-area expertise.
• Evolution Windows: UK timber-look windows and doors manufacturer marketing heritage aesthetics with modern performance, closely comparable to ERW's period-property, conservation-area positioning.
• Westbury Windows & Joinery: UK bespoke timber window and door manufacturer specializing in period-property replacement with in-house finishing, directly comparable to ERW's bespoke fabrication and factory decoration model.
• English Heritage Windows: UK maker of bespoke timber windows and doors tailored to listed buildings and conservation areas, directly comparable to ERW's heritage specialization and slim double-glazing solutions.

Broad incumbents

• Anglian Home Improvements: Large UK home-improvement installer offering windows and doors nationwide across multiple materials, including premium ranges. Not niche to heritage, but a direct competitor for premium-window replacement wallet share.
• Everest: National UK home-improvement incumbent with a windows and doors range spanning uPVC, aluminium and timber, competing with ERW for premium replacement-window demand across the country.

Regional players

• Timber Windows Scotland: Scottish bespoke timber window and door specialist serving period properties north of the border, mirroring ERW's regional premium joinery model but operating in a different UK geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/ERWJoinery
• Facebookfacebook.com/ERWLtd
• Instagraminstagram.com/erwltd
• Pinterestpinterest.co.uk/ERWJoinery

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 ERW