S&K Roofing

What S&K Roofing does

S&K Roofing, Siding and Windows (legal name; DBA S&K Roofing) is a privately held, family-owned exterior home services contractor founded by Don Katzenberger in 1980 in Eldersburg, Maryland. The company operates as a one-stop shop for residential and commercial exterior work, delivering roofing, siding, windows, doors, gutters, decks, and attic insulation across Maryland and Northern Virginia (ten counties), with additional contractor licensing in Pennsylvania and West Virginia. Roofing is the core revenue line, spanning six material categories — fiberglass asphalt shingles (CertainTeed), composite/synthetic slate and shake (DaVinci, EcoStar, BRAVA), natural cedar, standing seam metal (Englert, Everlast), genuine Vermont slate, and copper — complemented by siding (vinyl, fiber cement/James Hardie, LP SmartSide, cedar, insulated), windows, doors, and gutter systems.

The business is a sales-led, direct-to-consumer service company: revenue is generated through free in-home estimates, project-based quote pricing, and project execution by employed installation crews. Customer acquisition runs through toll-free phone, an SEO-optimized website with quote forms, Google reviews, the Angie's List platform (Super Service Award every year since 2008), physical showrooms in Maryland and Virginia, and a Wells Fargo Home Projects credit financing partnership that supports larger ticket sizes. The commercial segment — churches, schools, universities, shopping centers, townhomes/condos, and property management companies — is served through a dedicated VP of Sales & Operations, while the residential segment remains the primary volume driver. Manufacturer certifications (CertainTeed ShingleMaster, DaVinci Masterpiece Contractor, James Hardie, LP SmartSide) and a second-generation leadership bench (Don Katzenberger as founder, Brad Katzenberger as Director of Sales) underpin the operational moat, with the company claiming over 100,000 projects completed across its 40+ year history and a 2019 'best year ever' peak.

Name

S&K Roofing

Legal name

S&K Roofing, Siding and Windows

Website

https://skroofing.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

11–50 employees

Short description

S&K Roofing, Siding and Windows is a family-owned Maryland exterior services contractor founded in 1980, delivering roofing, siding, windows, doors, gutters, decks, and insulation to residential and commercial customers across Maryland and Northern Virginia.

Ownership category

akta.pro rank

Product category

Roofing & Exterior Contracting

NAICS

Roofing Contractors (23816), Siding Contractors (23817), Residential Remodelers (236118)

SIC

Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Roof Installation & Replacement (HSAPAKAA)

akta.pro secondary industries

Roof Repair & Leak Remediation (HSAPAKAB), Soffit, Fascia & Eaves Repair/Replacement (HSAPAKAH)

Keywords

• Residential roofing services
• Exterior home improvement
• Commercial roofing installation
• Siding replacement services
• Window and door installation

Headquarters

HQ city

Sykesville

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Roofing Services: Primary revenue stream including roof repair, replacement, and installation for residential and commercial properties. Services include asphalt shingles, composite, cedar, metal, slate, and copper roofing materials. Revenue is generated through one-time project fees based on scope of work.
2. Siding Services: Installation, repair, and replacement of various siding materials including vinyl, LP SmartSide, fiber cement (James Hardie), cedar, and insulated siding. Revenue generated through project-based pricing.
3. Windows and Doors Installation: Window and door installation and replacement services. Revenue is project-based with pricing determined by scope and materials selected.
4. Gutter Services: Gutter installation, replacement, and repair including copper gutters and standard systems. Project-based revenue.
5. Additional Services: Additional services including decks, attic insulation, skylights, and home improvement repairs. Revenue generated through individual project pricing.
6. Financing Partnership Revenue: The company offers financing through Wells Fargo, enabling customers to pay for projects over time. While this doesn't directly generate revenue, it facilitates larger project values by making services affordable through installment payments.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels5 records

Core offering

S&K Roofing is an exterior home improvement contractor that installs residential and commercial roofing, siding, windows, doors, gutters, decks, and attic insulation for homeowners and select commercial clients across Maryland and Northern Virginia. The company operates two design showrooms (Rockville and Halethorpe) staffed by consultants and supports projects with in-house project managers, financing options, and a transferrable 10-year workmanship warranty.

Product overview

S&K Roofing, Siding and Windows is a family-owned exterior home services company serving Maryland and Northern Virginia since 1980. The company operates as a one-stop shop offering integrated roofing, siding, windows, doors, gutters, and deck services. The core roofing division encompasses multiple product types including fiberglass asphalt shingles (CertainTeed), composite/synthetic slate and shake (DaVinci, EcoStar, BRAVA), natural cedar, metal (Englert, Everlast), genuine Vermont slate, and copper roofing systems. Siding offerings include vinyl (CertainTeed Cedar Impressions, Monogram), fiber cement (James Hardie), and LP SmartSide engineered wood. The company also provides window and door installation/replacement, gutter systems, composite and wood decks, and attic insulation through a partnership with USI Carroll Insulation. Commercial services extend to churches, schools, shopping centers, and multi-family properties.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Roofing Services

Quantifiable outcome

• Over 100,000 projects completed to date
• +3 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Five partnerships are on record, tiered core.

• USI Carroll InsulationcoreStrategic or Co-development PartnerPartnership for attic insulation services. S&K offers attic insulation services in partnership with USI Carroll Insulation, a General Contractor serving the Sykesville, MD area that specializes in blown insulation, loose fill insulation, board insulation, sprayed foam air barrier, and other insulation services.
• CertainTeedcoreTechnology or IntegrationMajor manufacturer partner providing vinyl siding, fiberglass asphalt shingles, and other building materials. S&K is an authorized CertainTeed contractor with ShingleMaster certification.
• DaVinci RoofscapescoreTechnology or IntegrationManufacturer of composite slate and composite shake roofing tiles. S&K is a DaVinci Masterpiece Contractor, authorized to install DaVinci roofing products.
• James HardiecoreTechnology or IntegrationManufacturer of fiber cement siding products. S&K offers James Hardie fiber cement siding, recognized as the best in the market for resistance to cracking, rot, and weather damage.
• LP Building Solutions (LP SmartSide)coreTechnology or IntegrationManufacturer of LP SmartSide engineered wood siding treated with advanced adhesive resins, water-resistant waxes, and zinc borate for protection against weather, water damage, termites, and fungal decay.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Long Home Products: Long Home Products is a Mid-Atlantic-based direct-to-consumer home improvement company offering roofing, siding, windows, doors, and baths with a similar one-stop-shop exterior services model. Both target the same regional customer base with quote-based, in-home consultation sales motion.
• Power Home Remodeling: Power Home Remodeling is one of the largest U.S. exterior home remodelers specializing in roofing, siding, windows, doors, and insulation. Both companies are direct-to-consumer with sales-led in-home consultation models, multi-trade exterior offerings, and focus on replacement rather than new construction.
• Thompson Creek Window Company: Thompson Creek is a Mid-Atlantic manufacturer-direct exterior remodeler offering windows, doors, siding, and roofing with company-owned installation. Both companies serve overlapping Maryland/Virginia/Delaware/Pennsylvania markets with a similar showroom + in-home consultation approach.

Emerging players

• RoofClaim: RoofClaim is a national roof replacement and storm restoration company using digital-first customer acquisition and insurance claim specialization. It is comparable to S&K as a residential roofing specialist but competes on technology and storm-restoration focus rather than full-service exterior remodeling.

Broad incumbents

• Tecta America: Tecta America is the largest U.S. commercial roofing contractor with national coverage across TPO, EPDM, metal, and built-up roofing systems. It overlaps with S&K's commercial roofing services for property managers, schools, and shopping centers, but at a much larger scale and commercial-only focus.
• Nations Roof: Nations Roof is one of the largest U.S. commercial roofing service providers serving property management companies, REITs, and institutional customers. It is comparable to S&K's commercial property management channel but operates nationally and is purely commercial.
• Window World: Window World is the largest U.S. window replacement franchise with 200+ locally owned locations nationwide. It competes with S&K's window replacement business via a franchise model that shares local-market customer focus but adds national brand scale and financing infrastructure.
• Alside: Alside is a leading U.S. manufacturer and supplier of vinyl siding, windows, and other exterior building products with associated installation networks. Comparable to S&K's siding and window services as a national-scale competitor in the same product categories and customer segments.
• Home Depot Installation Services: Home Depot's in-store installed services program connects homeowners to vetted contractors for roofing, siding, windows, doors, and gutters. It competes with S&K in the same product categories and customer segments but benefits from massive retail foot traffic and national brand trust.

Regional players

• Bealing Trewes Roofing & Home Exteriors: Bealing Trewes is a regional roofing and home exteriors contractor serving the Mid-Atlantic region including Maryland, Pennsylvania, and Delaware. Comparable to S&K in geography and product mix (roofing, siding, windows, gutters) but without the multi-state licensing footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights6 records

Customer concentration

• Xx.com/skroofing

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 S&K Roofing