North Star Windows and Doors
North Star Windows and Doors is a Canadian manufacturer founded in 1985 that produces energy-efficient vinyl windows, sliding patio doors, and entry doors, selling exclusively through over 300 authorized dealers across North America from its St. Thomas, Ontario headquarters.
- Company typePrivate
- Founded1985
- HeadquartersSaint Thomas, Canada
- Headcount1–10
- GTM typeB2C
- OfferingHardware or Manufacturing
What North Star Windows and Doors does
North Star Windows and Doors is a Canadian manufacturer of vinyl windows, sliding patio doors, and entry doors, headquartered in St. Thomas, Ontario, and operating continuously since 1985 under the legal entity North Star Manufacturing (London) Ltd. The company manufactures in its own AAMA-certified extrusion facility and produces three core window series — Series 1000 (3 1/4 inch frame), Series 4000/5000 (4 1/2 to 5 1/4 inch frames), and a Series 4000/5000 Hybrid with aluminum exterior cladding — across casement, single-hung, double-hung, slider, awning, bow, bay, picture, and custom configurations. Adjacent product lines include the ComfortStar sliding patio door and the Sentinel steel and fiberglass entry door system, the latter featuring composite frames independently tested at the University of Waterloo for Category 4 hurricane wind resistance.
The company's technical differentiation rests on three proprietary platforms: ULTRASTAR, an industry-first co-extrusion of virgin vinyl PVC with 55% fiberglass content that eliminates metal reinforcement; Fusion Colour Wrap, a multilayer polyurethane reactive hot-melt coating for permanent exterior color; and licensed Super Spacer warm-edge foam silicone spacer technology claimed to boost R-values by 30%. All products are CSA-A440 and ENERGY STAR certified, with the ComfortStar patio door carrying ENERGY STAR Most Efficient designation, and the catalog is aligned with the Canada Greener Homes Grant incentive program. Component-level partnerships supply climate-segmented glazing from Pilkington (Activ self-cleaning, Energy Advantage), Cardinal (LoE 366), and Guardian Glass (ClimaGuard 80/71).
North Star operates a pure channel-partner go-to-market, selling exclusively through over 300 authorized and Diamond Dealers across North America, with no direct-to-consumer e-commerce and no publicly disclosed pricing. End customers are residential homeowners, builders, and contractors undertaking replacement, renovation, or new construction, served through a tiered dealer program that requires WSIB coverage, liability insurance, and demonstrated installation expertise. Revenue is generated through one-time hardware sales backed by a transferable limited lifetime warranty, and the company is privately held with no external investment, parent company, or public-ownership signals in the available data.
North Star Windows and Doors firmographics
Firmographics- Name
- North Star Windows and Doors
- Legal name
- North Star Manufacturing (London) Ltd.
- Website
- https://northstarwindows.com
- Company type
- Private
- Founded year
- 1985
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- North Star Windows and Doors is a Canadian manufacturer founded in 1985 that produces energy-efficient vinyl windows, sliding patio doors, and entry doors, selling exclusively through over 300 authorized dealers across North America from its St. Thomas, Ontario headquarters.
- Ownership category
- akta.pro rank
North Star Windows and Doors industry classification
Industry- Product category
- Vinyl Window and Patio Door Manufacturing
- NAICS
- Metal Window and Door Manufacturing (332321)
- SIC
- Metal Doors, Sash, Frames, Moldings & Trim (3442)
- akta.pro primary industry
- Windows (IMADAIAC)
Keywords
Where North Star Windows and Doors is headquartered
LocationHeadquarters
- HQ city
- Saint Thomas
- HQ country
- Canada
- HQ region
- North America
Offices1 record
Markets served
North Star Windows and Doors business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D
Revenue model
- Vinyl Windows and Doors (Series 1000, 4000/5000, Hybrid): North Star manufactures and sells vinyl windows and doors through a dealer network. Products include casement, single-hung, double-hung, slider, awning, bow, bay, picture, and custom windows; ComfortStar sliding patio doors; and Sentinel steel and fiberglass entry doors. Sales are one-time product transactions with a transferable limited lifetime warranty.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
North Star Windows and Doors product offering
Product offeringCore offering
North Star Windows and Doors manufactures vinyl windows and sliding patio doors sold through an independent dealer network across North America. Its catalog spans the Series 1000, Series 4000/5000, and Series 4000/5000 Hybrid window lines in multiple operating styles (casement, single-hung, double-hung, slider, awning, bow, bay, picture, custom shapes), the ComfortStar sliding patio door line, and the Sentinel entry door line for residential new construction and renovation projects.
Product overview
North Star Windows and Doors is a manufacturer of vinyl windows and doors headquartered in St. Thomas, Ontario, Canada, operating since 1985. The company offers three main window series: Series 1000 (3 1/4 inch traditional vinyl frame), Series 4000/5000 (4 1/2 to 5 1/4 inch deep frames), and Series 4000/5000 Hybrid (vinyl interior with aluminum exterior). Window types include casement, single-hung, double-hung, slider, awning, bow, bay, picture, and custom shapes. The company also produces ComfortStar Sliding Patio Doors and Sentinel Entry Doors (steel and fiberglass). Key proprietary technologies include ULTRASTAR fiberglass co-extruded reinforcement, Fusion Colour Wrap exterior coating, and Super Spacer warm-edge technology. North Star holds CSA-A440 certification and ENERGY STAR certification for all product lines.
Differentiator
Problem solved
Functional benefit
Brands
- Sentinel: Entry door brand featuring steel and fiberglass doors with composite frames tested to withstand hurricane-force winds up to 246 km/h (Category 4 hurricane).
- ComfortStar
- ULTRASTAR
- Fusion Colour Wrap
Quantifiable outcome
- Window R-values boosted by 30% with Super Spacer technology
- +3 more outcomes
Companies that use North Star Windows and Doors
Customer profileSegments3 records
Ideal customer profiles3 records
North Star Windows and Doors technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
North Star Windows and Doors partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- University of Waterloo (Composites Research Group)coreNorth Star collaborated with the University of Waterloo's composites research group to conduct independent laboratory testing of the Sentinel entry door system. Testing confirmed the composite frame outperformed wood materials in water resistance, structural integrity, and dimensional stability. Sentinel achieved industry-leading ratings for air and water penetration, demonstrating its ability to withstand elements without warping, bowing, or twisting.
- PilkingtoncoreNorth Star offers Pilkington Activ self-cleaning glass as an option across its window and patio door products. The glass features a permanent photocatalytic and hydrophilic coating that breaks down organic dirt when activated by sunlight and washes it away with rain. North Star also offers Pilkington Energy Advantage low-E glass for northern climates.
- CardinalcoreNorth Star offers LoE 366 low-emissivity glass from Cardinal, recommended for southern climates where cooling costs outweigh heating costs. The glass has a very high reflection rate of radiant outside heat to prevent summer heat gain while retaining radiant heat in winter.
- Guardian GlasscoreNorth Star offers ClimaGuard 80/71 coated residential glass from Guardian Glass, designed for cold northern climates. The glass is designed to maximize solar heat gain and retain indoor heat while providing desired visible light transmission and insulating power.
Scale indicators3 records
Recent moves5 records
Expansion highlights5 records
North Star Windows and Doors competitors and assessment
Company assessmentDirect peers
- Simonton Windows: Simonton Windows is a vinyl window and patio door manufacturer serving the replacement and new-construction markets through dealers and big-box retailers. Its product positioning around energy efficiency and dealer distribution is closely aligned with North Star's go-to-market.
- Vinylmax Windows: Vinylmax Windows is a U.S. vinyl window and patio door manufacturer selling through dealers in the Midwest and Mid-Atlantic. It competes with North Star in vinyl window and sliding patio door categories through a similar dealer-led, energy-efficiency-focused model.
- Sunrise Windows & Doors: Sunrise Windows & Doors is a vinyl window and door manufacturer focused on the U.S. Midwest and East Coast, selling through a dealer network. Its specialty dealer distribution and vinyl product focus make it a strong comparable to North Star in channel and product structure.
- ProVia Door: ProVia is a U.S. manufacturer of steel and fiberglass entry doors, patio doors, and windows sold through dealers and distributors. Its Sentinel-comparable entry door offering and dealer-led distribution make it a direct peer in the entry door category North Star serves.
- MI Windows and Doors: MI Windows and Doors is a large U.S.-based vinyl window and patio door manufacturer selling through dealer and builder channels. It is one of the closest direct peers to North Star in terms of vinyl-only product focus, multi-series window lineup, and dealer-led distribution model.
Broad incumbents
- Cornerstone Building Brands (Ply Gem): Cornerstone Building Brands, parent of Ply Gem Windows, is a major North American manufacturer of vinyl and aluminum windows, patio doors, and entry systems. It directly overlaps with North Star's vinyl window and patio door offering, particularly in U.S. builder and dealer channels.
- Andersen Windows & Doors: Andersen is a leading North American window and door manufacturer with a broad portfolio of wood, composite, and Fibrex-based products. It competes with North Star in residential replacement and new-construction windows but at significantly larger scale and with a wider product and price-point range.
- JELD-WEN: JELD-WEN is one of the world's largest manufacturers of windows, doors, and related building products. It is broadly comparable to North Star as a multi-category window and door manufacturer, though JELD-WEN operates at a much larger scale with a global footprint and broader material coverage.
- Therma-Tru Doors: Therma-Tru is a leading North American manufacturer of fiberglass and steel entry doors sold through dealers, builders, and big-box retailers. It competes with North Star's Sentinel entry door line in fiberglass entry systems, particularly in U.S. replacement and new-construction channels.
- Weather Shield Windows & Doors: Weather Shield is a long-established U.S. manufacturer of premium wood, vinyl, and composite windows and doors. It overlaps with North Star in the vinyl and energy-efficient replacement segment but offers a broader premium materials portfolio and a larger national builder footprint.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
North Star Windows and Doors social profiles
Digital presenceNorth Star Windows and Doors compliance and trust
Trust signalCompliance3 records
North Star Windows and Doors financial estimates
Financial estimateRevenue estimate
Valuation estimate
North Star Windows and Doors leadership team
Management profileNumber of profiles
Profiles3 records
North Star Windows and Doors funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
North Star Windows and Doors M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about North Star Windows and Doors
What does North Star Windows and Doors do?
North Star Windows and Doors manufactures vinyl windows and sliding patio doors sold through an independent dealer network across North America. Its catalog spans the Series 1000, Series 4000/5000, and Series 4000/5000 Hybrid window lines in multiple operating styles (casement, single-hung, double-hung, slider, awning, bow, bay, picture, custom shapes), the ComfortStar sliding patio door line, and the Sentinel entry door line for residential new construction and renovation projects.
Is North Star Windows and Doors a public or private company?
North Star Windows and Doors is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was North Star Windows and Doors founded?
North Star Windows and Doors was founded in 1985. It employs 1 to 10 people.
Where is North Star Windows and Doors based?
North Star Windows and Doors is headquartered in Saint Thomas, Canada, in the North America region.
How does North Star Windows and Doors make money?
One revenue line is on record: vinyl Windows and Doors (Series 1000, 4000/5000, Hybrid).
Who are North Star Windows and Doors's main competitors?
Direct peers on record are Simonton Windows, Vinylmax Windows, Sunrise Windows & Doors, ProVia Door and MI Windows and Doors. Broad incumbents are Cornerstone Building Brands (Ply Gem), Andersen Windows & Doors, JELD-WEN, Therma-Tru Doors and Weather Shield Windows & Doors.
Does North Star Windows and Doors have an API?
No public API is recorded for North Star Windows and Doors.
What industry is North Star Windows and Doors in?
North Star Windows and Doors's product category is Vinyl Window and Patio Door Manufacturing. Its primary akta.pro industry code is IMADAIAC, Windows. Its NAICS code is 332321 and its SIC code is 3442.