Great Lakes Roofing

What Great Lakes Roofing does

Great Lakes Roofing Corporation (GLRC) is a family-owned commercial and industrial roofing services contractor founded in 1983 in Milwaukee by Don Puccetti and now headquartered in Germantown, Wisconsin. The company operates four full branches (Germantown/Milwaukee, Madison, Appleton/Menasha, and Cedar Rapids, Iowa) plus satellite locations in Waukegan, Illinois and North Central Wisconsin, serving a multi-state Midwest territory that includes Wisconsin, Michigan's Upper Peninsula, Iowa, Minnesota, and northern Illinois. With approximately 100 employees, GLRC offers four core service lines: commercial roof repairs (including 24/7 emergency response), full roof replacement (TPO, PVC, EPDM single-ply membranes, metal systems, and asphalt shingles), recurring maintenance programs (annual/quarterly inspections), and specialized services (in-house metal fabrication, light pipes/skylights, snow rails, edge melt systems, safety systems, insulation, and company-owned crane rental).

The technical backbone is a vertically integrated service platform combining field crews with proprietary in-house capabilities: a custom metal fabrication shop for gutters, downspouts, and edge metal, a company-owned crane fleet, and a proprietary "Job Book" safety planning methodology. The company maintains memberships in the National Roofing Contractors Association and the National Safety Council, is a 10-time Wisconsin Corporate Safety Award winner, and holds BBB A+ accreditation and a 2022 BBB Torch Award for Business Ethics. Customer segments span manufacturing, healthcare, education, food processing, hospitality, religious facilities, retail, warehousing, and government, with documented projects including Great Lakes Naval Base and Canadian National Railway.

The business model is predominantly project-based with custom quotes per engagement, supplemented by recurring maintenance contracts. Revenue is generated through direct field sales with on-site evaluations and written proposals, supported by inside sales for inbound inquiries and a 24/7 emergency phone line. Distribution is enabled by the regional branch network, which allows localized service delivery and rapid response. The company is led by President Chris Lampien and remains privately held under family ownership with no external capital or institutional backers.

Name

Great Lakes Roofing

Legal name

Great Lakes Roofing Corporation

Website

https://greatlakesroofing.net

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

11–50 employees

Short description

Great Lakes Roofing Corporation is a family-owned commercial and industrial roofing contractor founded in 1983, serving the Midwest from four branches with roof repair, replacement, maintenance, and specialized services including in-house metal fabrication for manufacturing, healthcare, education, and government customers.

Ownership category

akta.pro rank

Product category

Commercial Roofing Services

NAICS

Roofing Contractors (23816), Roofing Contractors (238160)

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Roof Installation & Replacement (HSAPAKAA)

akta.pro secondary industries

Roof Inspection, Preventive Maintenance & Tune-Ups (HSAGAKAH), Storm, Wind & Hail Damage Roof Repair (Emergency/Tarping) (HSAGAKAI), Soffit, Fascia & Eaves Repair/Replacement (HSAPAKAH)

Keywords

• Commercial roofing services
• Industrial roof repair
• Roof replacement
• Roof maintenance programs
• Metal fabrication roofing

Headquarters

HQ city

Germantown

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Commercial Roof Repairs: Emergency 24/7 repair services and scheduled repairs to extend roof lifespan. Repairs address leaks, storm damage, age-related deterioration, and preventive maintenance needs. Revenue generated per project based on scope and complexity.
2. Commercial Roof Replacement: Full roof replacement services for commercial and industrial buildings including tear-off and lay-over options. Custom solutions using TPO, PVC, EPDM, metal, or shingles. Project-based pricing.
3. Roof Maintenance Programs: Annual and quarterly roof inspection and maintenance services including leaf/snow removal, gutter cleaning, and drain clearing. Ongoing service contracts provide recurring revenue.
4. Specialized Services: Metal fabrication, light pipes/sky lights, snow rails, safety systems, edge melt systems, insulation systems, and crane rentals. Additional services bundled with core roofing projects.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Great Lakes Roofing Corporation provides commercial and industrial roofing services across the Upper Midwest, including 24/7 emergency roof repairs, full roof replacement (TPO, PVC, EPDM, metal, and shingle systems), scheduled annual and quarterly roof maintenance, and specialized services such as in-house custom metal fabrication, light pipes/skylights, snow rails, edge melt systems, safety systems, insulation, and company-owned crane rentals. The company serves healthcare, manufacturing, education, food processing, religious, retail, warehousing, and multi-tenant building customers via a regional branch network across Wisconsin, Michigan's Upper Peninsula, Iowa, Minnesota, and northern Illinois.

Product overview

Great Lakes Roofing Corporation offers a comprehensive suite of commercial and industrial roofing services built around four core offerings: Roof Repairs (including 24/7 emergency services), Roof Replacement (using TPO, PVC, EPDM, metal, and shingle systems), Roof Maintenance (annual and quarterly inspections with debris removal), and Specialized Services (metal fabrication, light pipes, snow rails, edge melt systems, safety systems, insulation, and crane rentals). The company operates as a service contractor rather than a software product company, providing customized roofing solutions for diverse building types including warehouses, manufacturing facilities, restaurants, schools, churches, and multi-tenant buildings across the Upper Midwest.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Roof Repairs 24/7 emergency and scheduled repair services for commercial and industrial roofs, addressing leaks, storm damage, and age-related deterioration across TPO, PVC, EPDM, metal, and shingle systems.
• Commercial Roof Replacement Complete customized roof replacement for commercial and industrial buildings using TPO, PVC, EPDM single-ply membranes, metal systems, or asphalt shingles, with tear-off and lay-over options and Energy Star-rated white reflective membrane upgrades.
• Commercial Roof Maintenance Annual and quarterly scheduled roof inspection and maintenance programs including leaf and snow removal, gutter cleaning, drain clearing, and proactive identification of repair needs to extend roofing system lifespan.
• Metal Fabrication In-house custom fabrication of gutters, downspouts, edge metal, and architectural metal components tailored to each building's specifications, eliminating subcontractor delays and cost changes.
• Light Pipes and Skylights Installation of ambient light pipes and skylights with built-in innovative diffusers that maximize sunlight distribution into commercial facilities, providing effective natural illumination.
• Snow Rails and Snow Gems Snow control devices installed on sloping roofs to slow and control snow slide, with optimal placement based on safety and ice dam prevention considerations.
• Edge Melt Systems Heating systems designed to eliminate ice dams and snow buildup, reducing winter damage risk to commercial roofs and surrounding property, offered as a preferred provider of WI Ice Dam Solutions products.
• Custom Safety Systems Customized rooftop safety solutions including textured walkways, enclosed ladders, barrier warnings, and fall-safe skylights incorporated into each building's regular roof and building maintenance plan.
• Insulation Systems Installation of insulation layers beneath roofing systems to improve energy efficiency, with proper type, thickness, and installation method selected based on each building's requirements.
• Crane Rentals Material handling services utilizing company-owned cranes of various types, with crews assisting at project sites for loading and unloading roofing materials.

Quantifiable outcome

• Reduce energy consumption through white reflective membranes and superior insulation systems
• +2 more outcomes

Named customers22 records

Segments8 records

Ideal customer profiles7 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered flagship, core and supporting.

• Ronald McDonald House Charities (RMHC)flagshipStrategic or Co-development Partner · 1 January 2017As part of the Roofing Alliance, GLRC committed to adopting all 165 RMHC chapters nationally, providing roofing services for nonprofit family housing facilities near medical care. Madison and Marshfield Wisconsin houses specifically adopted.
• National Safety CouncilcoreStrategic or Co-development PartnerTrusted partner relationship with National Safety Council. GLRC participates in safety training and follows NSC guidelines for workplace safety best practices.
• WI Ice Dam SolutionscoreTechnology or IntegrationPreferred provider of Edge Melt Systems for ice dam prevention. Products designed to eliminate ice dams and snow build-up on commercial roofs, reducing winter damage risk.
• Dawes Crane RentalsupportingTechnology or IntegrationEquipment rental partner for crane services at Milwaukee job sites. Provides rigging and crane rental services for material handling on commercial roofing projects.
• JX Truck CentersupportingTechnology or IntegrationTruck service and parts provider for Waukesha location, supporting GLRC's fleet maintenance needs for service vehicles.
• National Roofing Contractors Association (NRCA)coreStrategic or Co-development PartnerActive member of the National Roofing Contractors Association, the industry's leading trade association providing resources, training, and industry standards.
• Roofing AlliancecoreStrategic or Co-development PartnerGLRC participates in Roofing Alliance initiatives including the Ronald McDonald House Charities partnership program for nonprofit roofing support.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Bone Dry Roofing: Bone Dry is a Midwest-based commercial and residential roofing contractor with multiple regional offices serving Indiana, Ohio, Kentucky, and surrounding states. Highly comparable to Great Lakes in branch-network structure, service mix (repairs, replacement, maintenance), and emphasis on safety and family-owned culture.
• Nations Roof: Nations Roof is a PE-backed commercial roofing platform with nationwide coverage offering installation, repair, and maintenance for TPO, EPDM, metal, and modified bitumen systems. Directly competes with Great Lakes for enterprise and multi-site commercial accounts and operates a similar multi-branch service model.
• Tecta America Corp. Tecta is one of the largest commercial roofing contractors in the U.S., operating a national network of branches providing roof installation, replacement, repair, and maintenance. Comparable to Great Lakes Roofing in core service mix (TPO, PVC, EPDM, metal) and enterprise customer focus, but at significantly greater scale.
• Flynn Group (now Flynn Canada / CRH): Flynn is a North American commercial roofing and architectural metals contractor serving large commercial and industrial customers with single-ply, metal, and standing-seam systems. Comparable in scope, customer profile, and emphasis on in-house metal fabrication, though with broader geographic reach.
• CentiMark Corporation: CentiMark is one of the largest commercial roofing contractors in North America, offering roof replacement, repairs, maintenance, and emergency services across 95+ offices. Direct competitor for enterprise and multi-site commercial accounts with highly comparable service portfolio and customer segments.
• Greenwood Industries: Greenwood Industries is a commercial and industrial roofing contractor offering single-ply membrane, metal, and steep-slope roofing plus custom fabrication. Comparable service breadth and emphasis on in-house metal capabilities mirror Great Lakes' positioning, though Greenwood serves a wider Midwest and national footprint.
• Baker Roofing Company: Baker Roofing is a family-owned commercial and residential roofing contractor headquartered in North Carolina with multiple regional offices across the Southeast. Closely comparable in family-owned legacy, commercial service mix (repairs, replacement, maintenance), and emphasis on safety and quality recognition.

Broad incumbents

• Tremco Roofing and Building Maintenance: Tremco is a national building envelope manufacturer and service provider offering roofing systems, restoration, and maintenance programs. Overlaps with Great Lakes on commercial reroof and maintenance but operates at far greater scale with proprietary materials and national service contracts.
• Carlisle Construction Materials: Carlisle is the leading manufacturer of EPDM and TPO single-ply roofing membranes with a nationwide contractor network. Indirectly comparable as a key materials supplier relationship and as a vertically integrated competitor through its services arm, but not a direct branch-based service peer.

Emerging players

• Roofing Corp of America (RCA): RCA is a PE-backed commercial roofing platform actively acquiring regional contractors to build a national footprint. Comparable service offering (commercial reroof, repair, maintenance), and represents both a competitor for talent and a potential exit path for family-owned operators like Great Lakes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@greatlakesroofingcorporati9552
• LinkedInlinkedin.com/company/great-lakes-roofing

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Great Lakes Roofing