Mathews Brothers

What Mathews Brothers does

Mathews Brothers Company is a family-owned window and door manufacturer headquartered in Belfast, Maine, operating as America's oldest window manufacturer since its founding in 1854. The company produces two principal product families: the premium Sanford Hills Collection, featuring historically accurate profiles, extensive customization options, and industry-leading PG50 Performance Grade ratings, and the Spencer Walcott Collection, a value-tier offering of energy-efficient vinyl windows and doors targeted at everyday residential projects. In 2026 the company introduced VIG (Vacuum Insulated Glass) technology, a vacuum-sealed two-pane glass system claimed to outperform tri-pane alternatives on u-values while weighing less. Core manufacturing technology includes Low-E insulating glass with argon gas fill, Duralite warm-edge spacers, and fusion-welded frame construction across two production facilities in Belfast and Hermon, Maine.

The company operates a manufacturer-only go-to-market model, selling exclusively through a network of 180+ authorized dealers across seven Northeast states (Maine, Massachusetts, New Hampshire, New York, Vermont, Connecticut, and Pennsylvania). End customers include homeowners, builders, contractors, and architects serving both residential replacement/renovation and new construction use cases, with named channel partners including Hammond Lumber, RK Miles, Erie Materials, Belletetes, Cape Cod Lumber, and Brill Lumber. The Hawthorne family — currently represented by President Scott Hawthorne, VP of Operations Kyle Hawthorne, and Executive Vice President Alex Hawthorne — has led ownership since 1986, with no disclosed external investors, private equity, or parent company. The business transitioned from a retail-plus-manufacturing model to a pure manufacturing/distribution model in 2008.

Revenue mechanics are tied to wholesale hardware sales of windows and doors through dealer partners; consumer pricing is not publicly disclosed and is managed at the dealer level. Marketing combines TV advertising, organic social (Facebook, YouTube), a digital visualizer tool, technical documentation (REVIT and CAD models), and dealer-led bottom-of-funnel conversion. Recognition includes Best Places to Work in Maine (2025, 2026), a 2011 National Glass Association Crystal Achievement Award, and a 2000 Window & Door magazine national industry award for small business marketing.

Name

Mathews Brothers

Legal name

Mathews Brothers Company

Website

https://mathewsbrothers.com

Company type

Private

Founded year

1854

Operating status

Operating

Headcount range

101–250 employees

Short description

Mathews Brothers is a family-owned Maine-based manufacturer of premium and value-tier residential windows and doors, founded in 1854 and sold exclusively through a 180+ dealer network across seven Northeast U.S. states.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Glass and Glass Product Manufacturing (32721)

SIC

Wholesale-Lumber, Plywood, Millwork & Wood Panels (5031)

akta.pro primary industry

Doors, Windows & Millwork Retail (Interior/Exterior Doors, Windows, Moulding) (CRAIAEAI)

Keywords

• Window manufacturing
• Door manufacturing
• Insulated glass
• Vinyl windows
• Wood windows

Headquarters

HQ city

Belfast

HQ country

United States

HQ region

North America

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. Windows and Doors Manufacturing: Mathews Brothers manufactures premium windows and doors sold exclusively through a dealer distribution network. The company operates manufacturing facilities in Maine producing the Sanford Hills (premium) and Spencer Walcott (value) product families.
2. Dealer Network Distribution: Products distributed through over 180 authorized dealers across New England and beyond. Company sells as a manufacturer exclusively to dealers who then sell to end customers.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Mathews Brothers manufactures premium and value-tier residential windows and doors from facilities in Belfast and Hermon, Maine. The company operates as a manufacturer-only business, selling exclusively through a network of over 180 authorized dealers across New England and the Northeast via two product families: the premium Sanford Hills Collection and the Spencer Walcott Collection. The company recently introduced Vacuum Insulated Glass (VIG) technology across its premium line.

Product overview

Mathews Brothers is America\'s oldest window manufacturer (founded 1854), producing windows and doors from facilities in Maine. The company operates two main product families: the premium Sanford Hills Collection featuring historically accurate profiles, extensive customization, and industry-leading PG50 performance ratings; and the Spencer Walcott Collection offering dependable performance and value for everyday projects. The company also recently introduced VIG (Vacuum Insulated Glass) technology as a groundbreaking innovation. Products include double hung windows, casements, awnings, picture windows, sliding windows, patio doors, bays, bows, and specialty geometric shapes. Mathews Brothers sells exclusively through a network of over 180 dealers across New England and beyond.

Differentiator

Problem solved

Functional benefit

Brands

• Sanford Hills: Premium family of windows and doors inspired by traditional New England wood windows with modern innovation. Features historically accurate profiles, authentic detailing, and industry-leading performance. Includes VIG (Vacuum Insulated Glass) technology.
• Spencer Walcott

Products and services

• Sanford Hills Collection A premium family of windows and doors designed for residential and commercial projects, inspired by traditional New England wood windows with modern innovation. Features historically accurate profiles, authentic detailing, extensive customization options, and PG50 industry-leading structural and thermal performance. Includes double hung windows, casements, awnings, picture windows, patio doors, and specialty shapes, with optional VIG (Vacuum Insulated Glass) technology.
• Spencer Walcott Collection A value-tier family of windows and doors combining dependable performance, practical beauty, and lasting value. Features energy efficient glass packages (Low-E coatings with argon gas fill), durable vinyl construction, smooth operation, and a wide range of styles and options. Designed for homeowners, builders, and contractors for everyday projects.
• VIG (Vacuum Insulated Glass) Advanced vacuum insulated glass technology that removes air between panes to create a vacuum seal. Lighter than tri-pane glass, achieves better u-values, uses only two panes of glass, and resembles a true divided lite. Offered as a feature within the premium Sanford Hills line.

Quantifiable outcome

• Most Sanford Hills units achieve PG50 Performance Grade rating in standard configuration
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered major and core.

• Hammond LumbermajorChannel Partner/ Reseller/ Distributor · 1 January 2025Major dealer partnership established in 2025 within Maine and beyond. Hammond Lumber represents a significant distribution channel for Mathews Brothers products.
• RK MilesmajorChannel Partner/ Reseller/ Distributor · 1 January 2025Dealer partnership in Vermont established in 2025. RK Miles serves as a key distribution partner for Mathews Brothers products in the Vermont market.
• Erie MaterialsmajorChannel Partner/ Reseller/ Distributor · 1 January 2025Dealer partnership in New York established in 2025. Erie Materials represents an important distribution partner for expanding into New York markets.
• BelletetescoreChannel Partner/ Reseller/ DistributorMulti-location dealer with stores in Sunapee, Moultonborough, Jaffrey, Winchendon, Brookline, Peterborough, Nashua, Ashland, and Pembroke, NH. Long-standing dealer partner serving New Hampshire communities.
• Cape Cod Lumber CompanycoreChannel Partner/ Reseller/ DistributorDealer location in Abington, MA serving the Massachusetts market.
• Brill LumbercoreChannel Partner/ Reseller/ DistributorDealer location in Bridgton, ME serving the Maine market.
• Arlington Coal & Lumber Co.coreChannel Partner/ Reseller/ DistributorDealer location in Arlington, MA serving the Massachusetts market.
• Atlantic Design CentercoreChannel Partner/ Reseller/ DistributorDealer location in York, ME serving the Maine market.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Alside: Associated Materials vinyl window and door brand focused on remodeling and replacement via dealer and contractor channels. Competes with the Spencer Walcott value line in dealer-served U.S. markets.
• Andersen Windows & Doors: Largest U.S. window and door manufacturer (100-Series, 400-Series, A-Series) with national dealer and big-box presence. Overlaps with both Mathews Brothers product families but at vastly greater scale and broader category coverage.
• Pella Corporation: Major national window and door manufacturer with multiple product tiers (Pella Reserve, Pella Impervia, Pella 250/350/350 Lifestyle) and a strong dealer-network model analogous to Mathews Brothers' channel strategy.
• JELD-WEN: Public global manufacturer of windows, doors, and millwork products across multiple price tiers. Direct competitor in the window and door categories with national distribution, supplying builders and dealers across the U.S.

Direct peers

• Harvey Building Products: Northeast U.S. window and door manufacturer and distributor with a similar regional dealer-based go-to-market. Direct competitor in replacement and new construction markets across New England and Mid-Atlantic where Mathews Brothers operates.
• Marvin Windows and Doors: Family-owned premium window and door manufacturer (Warroad, MN) with comparable high-end and historically accurate product lines (Marvin Signature, Integrity). Direct premium-segment competitor serving similar architects, homeowners, and custom builders.

Emerging players

• Simonton Windows: Mid-market vinyl window and door manufacturer sold through dealers and big-box retailers. Closely comparable to the Spencer Walcott value-tier product family in price point and builder/contractor target buyer.
• Integrity Windows and Doors: Marvin's Ultrex-fiberglass-based window and door line targeting premium replacement and new construction. Comparable in positioning to the Sanford Hills premium tier with a focus on durability and energy performance.
• Window World: Largest U.S. direct-to-consumer window replacement franchise. Tangentially comparable in replacement-customer focus, though operating a fundamentally different (company-owned store, vertical sales) business model than Mathews Brothers.

Regional players

• Soft-Lite Windows: Northeast-region vinyl window and door manufacturer selling through independent dealers. Comparable in regional scale, dealer-channel go-to-market, and emphasis on energy-efficient construction.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@MathewsBrothers
• Facebookfacebook.com/mathewsbrothers
• Xx.com/Mathews1854

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Mathews Brothers