Saveheat Group

What Saveheat Group does

Saveheat Group Ltd is a privately held Scottish fenestration manufacturer formed in May 2017 through the consolidation of Blairs Timber Windows (founded 1908), Saveheat Glass, Merlin Network, and Blairs Aluminium Systems. Headquartered in Greenock, the group operates four manufacturing facilities in Scotland's central belt and employs approximately 150 staff, producing windows, doors, curtain walling, and fire-rated door sets across timber, aluminium, and PVCu, with in-house IGU production through Saveheat Glass. Revenue at group formation exceeded £16 million, anchored by a heritage reputation in bespoke timber fenestration and expanded through aluminium and PVCu product lines.

The company operates as a B2B trade supplier, not selling direct-to-consumer at scale. Its go-to-motion is sales-led and account-based, serving architects, developers, main contractors, housing associations, and builders/joiners through dedicated account management, trade accounts (Merlin Network), and a Head of Affordable Housing Division managing framework agreements. Pricing is quote-based and not publicly disclosed, with multi-year contract frameworks for trade and housing association customers and project-based quotes for commercial work. Notable enterprise customers include Apple Store Glasgow, University of Reading, Canada Life Toronto, the Natural History Museum Kensington, and multiple housing associations, indicating credibility in both heritage and commercial-grade specifications.

Product technology centers on high-performance IGUs using Low-E coatings and warm-edge spacer bars (U-values to 1.0 W/m²K), the patented BDS window, the WarmCore aluminium system (25% better thermal efficiency, exclusive Scotland fabricator), FD30/FD60 certified fire doors (Pyrodoor), and a Heritage Door Collection launched in 2023. The group is certified under Secured by Design, FSC, ISO 14001, ISO 18001, and CE Marking, supporting procurement into public-sector, heritage, and security-sensitive projects. The group is backed by Arranglen, the investment vehicle of Sandy and James Easdale.

Name

Saveheat Group

Legal name

Saveheat Group Ltd

Website

https://saveheatgroup.co.uk

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

51–100 employees

Short description

Saveheat Group is a privately held Scottish fenestration manufacturer producing timber, aluminium, and PVCu windows, doors, curtain walling, and IGUs across four plants, supplying architects, developers, contractors, housing associations, and trade installers throughout the UK.

Ownership category

akta.pro rank

Product category

Fenestration Manufacturing (Windows and Doors)

NAICS

Wood Window and Door Manufacturing (321911), Flat Glass Manufacturing (327211)

SIC

Glass Products, Made Of Purchased Glass (3231), Flat Glass (3211), Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industries

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB), Interior Doors (IMADAIAB), Fire-Rated Glass & Glazing Assemblies (IMADAHAH)

Keywords

• Timber window manufacturing
• Aluminium glazing systems
• PVCu window fabrication
• Insulated glass units
• Fire-rated door sets

Headquarters

HQ city

Greenock

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Window and Door Manufacturing: Manufacture and supply of windows and doors across all materials (Aluminium, Timber, and uPVC). Products include casement windows, sash and case windows, bi-fold doors, sliding doors, entrance doors, and fire doors. Revenue generated through direct B2B sales to contractors, developers, housing associations, and trade customers.
2. Saveheat Glass Units: Manufacture and supply of high-performance insulated glass units (IGUs), toughened safety glass, decorative glass, fire resistant glass, and processed glass. Sold as standalone product and incorporated into company's own window and door products.
3. Fire Door Systems: Pyrodoor brand manufactures and supplies fully certified FD30 and FD60 fire-rated door sets for commercial buildings and multi-residential applications.
4. Trade Account Services: Merlin Network provides trade-only supply of PVCu windows, doors, and conservatory systems to installers and contractors, offering competitive pricing and non-competing support.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Saveheat Group manufactures and supplies windows, doors, curtain walling, and high-performance insulated glass units (IGUs) across three core materials — timber, aluminium, and PVCu — through its operating divisions Blairs Timber, Blairs Aluminium, Blairs PVCu, Merlin Network, Saveheat Glass, and Pyrodoor. The group serves trade and commercial customers with bespoke manufacturing, including heritage-compliant solutions, energy-efficient glazing, and certified fire-rated door sets.

Differentiator

Problem solved

Functional benefit

Brands

• Saveheat Glass: High-performance insulated glass units (IGUs) manufacturing division
• Pyrodoor
• Blairs
• Merlin Network
• WarmCore
• Heritage Door Collection
• O70 Gold System
• Kommerling
• BDS (Blairs Double Swing Window)

Products and services

• Blairs Timber Windows & Doors Bespoke timber windows and doorsets for heritage, conservation, and premium self-build homes. Includes the patented Blairs Double Swing (BDS) window, sash and case windows, casement windows, and the Heritage Door Collection. Targets heritage architects, conservation specialists, and premium residential developers.
• Blairs Aluminium Systems Architectural aluminium systems including windows, bi-fold doors, entrance doors, patio doors, and commercial curtain walling. Scotland's first and exclusive WarmCore® fabricator, offering thermally enhanced aluminium with U-values as low as 0.9 with triple glazing. Targets commercial developers, main contractors, and architectural specifications.
• Blairs PVCu Windows & Doors Energy-efficient and low-maintenance PVCu windows and doors for new-build developers, housing associations, and home improvement markets. Manufactured under Kommerling brand partnership with Profine UK using 76/88mm platforms.
• Merlin Network Trade Supply Trade-only supply of high-quality PVCu windows, doors, and conservatory systems to installers and contractors. Offers the O70 Gold System and competitive pricing with non-competing support to trade partners. Operates from Dalgety Bay manufacturing facility.
• Saveheat Glass Insulated Units High-performance insulated glass units (IGUs) with low-emissivity (Low-E) coatings and warm-edge spacer bar technology. Includes toughened safety glass, decorative glass, fire resistant glass, and processed glass. Achieves U-values as low as 1.0 W/m²K. Sold as standalone product and incorporated into all group products. Compliant with EN 1279-5 and Construction Products Regulations (CPR).
• Pyrodoor Fire-Rated Door Systems Fully certified FD30 and FD60 fire-rated door sets for commercial buildings and multi-residential applications. Manufactured under the Pyrodoor brand as a joint venture within the group.

Quantifiable outcome

• U-values as low as 1.0 W/m²K achievable with Saveheat Glass insulating units
• +4 more outcomes

Named customers15 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Kömmerling UK (WarmCore)coreStrategic or Co-development Partner · 1 July 2026Blairs Aluminium became Scotland's first and exclusive WarmCore fabricator. WarmCore is an enhanced aluminium system with full-width thermally insulating core, delivering 25% better thermal efficiency. Provides exclusive market position in Scotland for this innovative product.
• Profine UK / KömmerlingcoreStrategic or Co-development Partner · 1 January 2019Partnership with Profine UK for Kömmerling PVCu systems. Blairs introduced PVC-U as a material through this partnership, extending to the Merlin business. Kömmerling brand selected after extensive market research to provide high-performance products for Scottish climate challenges. Also encompasses WarmCore hybrid solutions and 76/88mm platforms.
• Historic Environment ScotlandcoreStrategic or Co-development Partner · 1 January 2017Historic Environment Scotland incorporated Saveheat's guidance on compliant Insulating Glass Units (IGUs) per EN 1279-5 and Construction Products Regulations (CPR) into their January 2018 guidance. This addressed issues of non-compliant low sight line heritage units in the market.
• Secured by DesigncoreOthersOfficial police security initiative. Blairs Windows & Doors joined Secured by Design in 2021. Products successfully tested and certificated to BS 7412/PAS24:2016 standards for enhanced security.
• Made in BritainminorOthersCampaign uniting British manufacturers with one marque. Blairs Timber Windows joined to identify and support British-made products and promote what Britain has to offer.
• Lowland RFCA (Armed Forces Covenant)minorOthersAgency enhancing understanding and support between defence organisations and civilians. Blairs signed the Armed Forces Covenant in 2024, demonstrating commitment to treating military members and families with respect and equality.

Scale indicators11 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Safestyle UK: UK's largest volume PVCu window and door installer, with vertically integrated manufacturing. Closely comparable to Saveheat's Merlin Network division in product focus (PVCu windows/doors) and target market (trade and replacement).
• Anglian Home Improvements: Major UK manufacturer and installer of windows, doors, and conservatories across multiple materials. Operates at a larger scale than Saveheat but with overlapping products (PVCu, aluminium, timber) and similar trade/retail distribution model.
• Zenith Staybrite: UK trade supplier of windows, doors, and conservatory products. Comparable to Saveheat's Merlin Network in operating as a trade-only distribution platform within the UK fenestration market.
• Clearview Home Improvements: UK manufacturer and installer of timber, aluminium, and composite windows and doors. Comparable to Saveheat's Blairs division in product mix and heritage/listed building focus.
• Everest Home Improvements: One of the largest UK window, door, and home improvement manufacturers/installers. Directly comparable to Saveheat in fenestration product scope and UK trade/DIY customer base, though Everest has a heavier direct-to-consumer focus.
• Mumford & Wood: UK-based bespoke timber window and door manufacturer specialising in heritage, conservation, and premium residential projects. Highly comparable to Blairs Timber's heritage and bespoke product line.

Broad incumbents

• Reynaers Aluminium: European aluminium systems supplier offering windows, doors, curtain walling, and sliding systems. Directly comparable to Blairs Aluminium's product scope, though operating pan-European at significantly larger scale.
• Sch\u00fcco UK: Global aluminium and PVCu window, door, and curtain walling systems supplier. Comparable to Blairs Aluminium's commercial curtain walling work (e.g., Sch\u00fcco FWS60 used at National History Museum), though operating at much larger scale and broader product breadth.
• AluK UK: Aluminium building systems supplier in commercial and residential fenestration. Comparable to Blairs Aluminium's commercial and high-end residential product positioning.

Others

• Profine UK / K\u00f6mmerling: UK arm of German PVCu systems manufacturer and Saveheat's strategic partner for K\u00f6mmerling and WarmCore platforms. Included as a peer due to the deep commercial partnership and shared exposure to PVCu and hybrid aluminium market dynamics.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC69szyNR2WmX3CJQAHTg_8g
• LinkedInlinkedin.com/company/saveheatgroup
• Instagraminstagram.com/saveheat_group
• TikToktiktok.com/@saveheat_group
• Xx.com/Saveheat_Group

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries6 records

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 Saveheat Group