Castle Windows
Castle Windows is a family-owned, Mt. Laurel, NJ-based home improvement contractor founded in 1977 that designs, manufactures, and installs replacement windows, entry doors, roofing, and siding for residential homeowners across 11 Northeast and Mid-Atlantic states, with a comprehensive transferable lifetime warranty as its core differentiator.
- Company typePrivate
- Founded1977
- HeadquartersMount Laurel, United States
- Headcount101–250
- GTM typeB2C
- OfferingServices
What Castle Windows does
Castle Windows is a privately held, family-owned home improvement company founded in 1977 and headquartered in Mt. Laurel, New Jersey. The company sells and installs replacement windows, entry doors, roofing, and siding for residential homeowners across an 11-state footprint in the Northeast and Mid-Atlantic (NJ, PA, NY, CT, MA, RI, DE, MD, VA, WV, plus one additional state), supported by five regional offices and a sales-led go-to-market that combines in-home field sales consultations with a 24/7 phone-based inside sales operation and online quote requests. Its core differentiator is a comprehensive lifetime warranty covering product, parts, installation, and free labor — transferable to subsequent homeowners — positioned against competitors that typically exclude labor or use pro-rated terms. Windows are designed, engineered, tested, and manufactured in North American factories, and the company holds state contractor licenses across all served states in addition to BBB accreditation and recurring placement on industry rankings such as the Qualified Remodeler Top 500 and Remodeling 550.
Revenue is generated primarily through one-time per-project sales of windows, doors, roofing, and siding (product plus professional installation), supplemented by warranty-covered service work performed at no incremental cost to existing customers. Pricing is quote-based and not publicly disclosed; customers access the company through its website, referrals (a program paying up to $50 per conversion), earned-media coverage of industry awards, and traditional in-home sales visits. The customer base is segmented horizontally across residential homeowners of varying property sizes, with no disclosed enterprise or commercial segment. The company is privately held under founder/family ownership, has no institutional investors or PE/VC backing, has not announced any mergers, acquisitions, or external funding rounds, and operates with a headcount in the 101–250 range — consistent with a mature regional contractor rather than a venture-backed high-growth operation.
Castle Windows firmographics
Firmographics- Name
- Castle Windows
- Legal name
- Castle Windows
- Website
- https://castlewindows.com
- Company type
- Private
- Founded year
- 1977
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Castle Windows is a family-owned, Mt. Laurel, NJ-based home improvement contractor founded in 1977 that designs, manufactures, and installs replacement windows, entry doors, roofing, and siding for residential homeowners across 11 Northeast and Mid-Atlantic states, with a comprehensive transferable lifetime warranty as its core differentiator.
- Ownership category
- akta.pro rank
Where Castle Windows is headquartered
LocationHeadquarters
- HQ city
- Mount Laurel
- HQ country
- United States
- HQ region
- North America
Offices5 records
Markets served
Castle Windows business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Supply Chain, Technology or R&D
Revenue model
- Window Sales and Installation: Primary revenue stream from selling and installing replacement windows to residential homeowners. This includes both the product sale (windows, frames, glass units) and professional installation services.
- Door Sales and Installation: Revenue from entry door sales and installation services, complementary to the window replacement business.
- Roofing and Siding Services: Revenue from roofing and siding installation services, expanding the home improvement product portfolio.
- Warranty Service: Ongoing service revenue from warranty-covered repairs and maintenance, covered under the lifetime warranty for existing customers at no additional cost to them.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom Quote-Based Pricing |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels10 records
Castle Windows product offering
Product offeringCore offering
Castle Windows designs, manufactures, sells, and installs replacement windows, entry doors, roofing, and siding for residential homeowners across 11 U.S. states. All windows are backed by a comprehensive transferable lifetime warranty that covers the product, parts, glass, seals, screens, installation, and labor.
Product overview
Castle Windows is a home improvement products and services company offering a unified portfolio of replacement windows, entry doors, roofing, and siding for residential homes across 11 states. The core products are Windows and Doors, supplemented by Roofing and Siding services. All products are backed by a comprehensive Lifetime Warranty that covers parts, labor, and installation. The company operates as a family-owned business since 1977, providing installation services alongside its product offerings.
Differentiator
Problem solved
Functional benefit
Products and services
- Windows Replacement windows for residential homes, designed, engineered, tested, and manufactured in North American factories. Sold with professional installation and backed by a comprehensive lifetime warranty covering leaks, drafts, vinyl, color, glass, seals, parts, screens, and installation.
- Doors
- Roofing
- Siding
- Lifetime Warranty
Quantifiable outcome
- Ranked among top 500 remodeling companies nationally by Qualified Remodeler
Companies that use Castle Windows
Customer profileNamed customers7 records
Segments1 record
Ideal customer profiles1 record
Castle Windows technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Castle Windows partnerships and signals
Strategic signalScale indicators3 records
Recent moves7 records
Expansion highlights5 records
Castle Windows competitors and assessment
Company assessmentDirect peers
- Long Home Products: Mid-Atlantic-based exterior home remodeling company offering windows, doors, roofing, and bath products with in-home sales — directly comparable regional competitor with overlapping product categories.
- Champion Window: National replacement windows, doors, roofing, and siding installer with in-home sales and direct-to-consumer manufacturing — closely comparable product portfolio and GTM motion to Castle Windows.
- Window World: One of the largest replacement window companies in the U.S., operating through franchise locations serving the Northeast and Mid-Atlantic with similar product offerings and direct sales model.
- Power Home Remodeling: Multi-product exterior home remodeler (windows, roofing, siding, doors) with a heavy in-home sales-led GTM motion serving the Northeast and Mid-Atlantic — a direct comparable in business model and geographic footprint.
- Renewal by Andersen: National replacement window division of Andersen Corporation, offering full-service window and door replacement with strong warranty positioning — directly comparable to Castle's in-home sales and installation model across multiple states.
Broad incumbents
- Andersen Corporation: Major U.S. window and door manufacturer serving new construction and replacement markets, providing the product backbone that companies like Castle and Renewal by Andersen install — a major incumbent in the broader category.
- Pella Corporation: Large, established window and door manufacturer offering both retail and replacement channels, including Pella Impervia for the replacement market — overlaps with Castle's window and door categories but operates at much broader scale.
- Marvin Windows and Doors: Premium window and door manufacturer serving both replacement and new-construction markets — comparable in that installers like Castle frequently install Marvin products, though Marvin itself operates at a broader, premium incumbent scale.
- Home Depot Installation Services: National big-box retailer operating a large windows, doors, roofing, and siding installation services program — a broad incumbent that competes for the same replacement customers through installer networks.
Regional players
- Jersey Carpentry / Regional NJ Remodelers: Regional NJ-based remodeling contractor offering window, door, and exterior home improvement services — directly comparable at the regional level across the New Jersey and PA service markets where Castle is headquartered.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Castle Windows social profiles
Digital presenceCastle Windows compliance and trust
Trust signalCompliance1 record
Castle Windows financial estimates
Financial estimateRevenue estimate
Valuation estimate
Castle Windows leadership team
Management profileNumber of profiles
Castle Windows funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Castle Windows 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 Castle Windows
What does Castle Windows do?
Castle Windows designs, manufactures, sells, and installs replacement windows, entry doors, roofing, and siding for residential homeowners across 11 U.S. states. All windows are backed by a comprehensive transferable lifetime warranty that covers the product, parts, glass, seals, screens, installation, and labor.
Is Castle Windows a public or private company?
Castle Windows is a private company. It is classified as family owned and is currently operating.
When was Castle Windows founded?
Castle Windows was founded in 1977. It employs 101 to 250 people.
Where is Castle Windows based?
Castle Windows is headquartered in Mount Laurel, United States, in the North America region.
How does Castle Windows make money?
Four revenue lines are on record. Window Sales and Installation is the primary driver. The others are door Sales and Installation, roofing and Siding Services and warranty Service.
Who are Castle Windows's main competitors?
Direct peers on record are Long Home Products, Champion Window, Window World, Power Home Remodeling and Renewal by Andersen. Broad incumbents are Andersen Corporation, Pella Corporation, Marvin Windows and Doors and Home Depot Installation Services. Jersey Carpentry / Regional NJ Remodelers is listed as a regional player.
Does Castle Windows have an API?
No public API is recorded for Castle Windows.