Alliance Roofing

What Alliance Roofing does

Alliance Roofing Company, Inc. is a privately held, union-affiliated commercial roofing and waterproofing contractor headquartered in Santa Clara, California, with a second regional office in Sacramento. Founded in 1986 by Rod Miller as a re-roofing business, the company has grown into the largest union roofing company in the Bay Area, serving general contractors, property managers, corporate and technology campuses (Google, Nvidia, Pixar, Intel, Microsoft), healthcare systems (Kaiser Permanente, Lucile Packard, Sutter Health), universities (Stanford, Santa Clara University, UC System), entertainment venues (Disney, SAP Center, Paris Las Vegas, Morongo Casino, Thunder Valley), and government entities (Caltrans, Lawrence Livermore National Labs, NASA Ames) across Northern California, Western U.S., Nevada, and Wyoming.

The company's core offerings span four integrated product lines. Roofing covers single-ply systems (TPO and PVC membranes in 45/60/80 mil thicknesses), built-up roofing, cool roofs (reflective systems targeting 15-30% reductions in cooling cost), green roofs, solar-ready roof systems, architectural metal roof systems, and steep-slope options including asphalt shingles, wood shakes and shingles, slate, and clay or concrete tile. Waterproofing covers below-grade, blind-side, podium and plaza, and traffic or pedestrian coating systems. A Service Division provides 24/7 leak response, Preventive Roof Maintenance (PRM) contracts, tenant improvements, and roof condition reports. A Division 7 & 3 line covers expansion joints, pedestals and pavers, caulking and sealants, skylights, and flashings. Underlying technical capability is reinforced by a Santa Clara-based in-house metal fabrication shop that produces custom flashings, complete metal roofing systems, and CAD-supported designs, and by certified-installer status with more than ten major manufacturers including Carlisle SynTec, Sika, Gaco, CertainTeed, Owens Corning, Johns Manville, Henry, Soprema, Tremco, and GAF.

Alliance Roofing generates revenue primarily through project-based installation contracts bid competitively to general contractors or negotiated directly with property owners, complemented by recurring service contracts (PRM and emergency leak response) that introduce subscription-style revenue. Pricing is project-specific and quote-based with no publicly listed tiers. Customer acquisition is led by a dedicated enterprise field-sales team targeting general contractors as subcontracting partners and commercial property managers as direct clients, supported by a company website that accepts bid requests and leak requests, an active LinkedIn presence, and a stock of industry awards (Carlisle Perfection Awards in 2023 and 2025, Carlisle Hall of Fame in 2024, Sika Elite Member in 2025, Gaco Top Contractor in 2023, Swinerton Outstanding Contractor in 2024). All work is performed by union labor trained through the Bay Area Union Roofing and Waterproofing Apprenticeship Program, contributing to what the company characterizes as the lowest incident rate in the Northern California roofing industry.

Name

Alliance Roofing

Legal name

Alliance Roofing Company, Inc.

Website

https://allianceroofingcal.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

101–250 employees

Short description

Alliance Roofing Company, Inc. is a privately held, union-affiliated commercial roofing and waterproofing contractor in Northern California, serving general contractors, property managers, and enterprise clients across technology, healthcare, education, entertainment, and government.

Ownership category

akta.pro rank

Product category

Commercial Roofing Services

NAICS

Roofing Contractors (23816)

SIC

Asphalt Paving & Roofing Materials (2950), Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Roof Repair & Leak Remediation (HSAPAKAB)

akta.pro secondary industries

Roof Installation & Replacement (HSAPAKAA), Storm, Wind & Hail Damage Roof Repair (Emergency/Tarping) (HSAGAKAI), Roof Inspection, Preventive Maintenance & Tune-Ups (HSAGAKAH), Flat Roof Repair & Membrane Restoration (TPO/EPDM/PVC/Built-Up) (HSAGAKAE)

Keywords

• Commercial roofing services
• Waterproofing solutions
• Roof maintenance programs
• Below-grade waterproofing
• Building envelope contracting

Headquarters

HQ city

Santa Clara

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Commercial Roofing Services: Project-based revenue from installation, replacement, and maintenance of commercial roofing systems for enterprise clients, general contractors, and property managers. Revenue generated through competitive bids and negotiated contracts.
2. 24-Hour Leak Response & Emergency Services: Emergency repair services with 24/7 availability, generating recurring service revenue from existing client base
3. Preventive Roof Maintenance (PRM): Ongoing maintenance contracts with property owners and managers, providing recurring revenue through annual service agreements

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Alliance Roofing Company, Inc. installs, replaces, and maintains commercial roofing and waterproofing systems for enterprise clients, general contractors, and property managers across Northern California and the Western U.S. Offerings span single-ply (TPO, PVC), built-up, cool, green, solar, metal, slate, tile, and shingle roofing, alongside below-grade, blind-side, plaza, and traffic-deck waterproofing. A dedicated Service Division delivers 24-hour emergency leak response and recurring preventive roof maintenance contracts.

Product overview

Alliance Roofing Company, Inc. is a commercial roofing and waterproofing contractor offering a comprehensive portfolio of integrated services. The company provides a unified service architecture comprising three core product lines: (1) Roofing Services including Single Ply (TPO/PVC), Built-Up Roofing, Cool Roofs, Green Roofs, Solar Roofs, Metal Roof Systems, and Steep Slope options (asphalt shingles, wood shakes/shingles, slate, and tile); (2) Waterproofing Systems covering below-grade, blind-side, podium/plaza, and traffic/pedestrian applications; and (3) a dedicated Service Division offering 24-Hour Leak Response, Preventive Roof Maintenance, Tenant Improvements, and Roof Condition Reports. The company also provides Division 7 & 3 Construction services including expansion joints, caulking/sealants, pedestals/pavers, and roof accessories. An in-house metal fabrication shop in Santa Clara enables custom flashings, full metal roofing systems, and CAD support. Alliance Roofing operates as a single unified contractor delivering end-to-end building envelope solutions rather than a modular software platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Roofing Services Full range of commercial and residential roofing installation and replacement services covering low slope and steep slope systems, including single-ply (TPO, PVC), built-up roofing, cool roofs, green roofs, solar roof integration, metal roof systems, slate, tile, wood shakes/shingles, and asphalt shingles, delivered to enterprise clients, general contractors, and property managers across Northern California and the Western U.S.
• Commercial Waterproofing Systems
• Service Division - Maintenance & Emergency Response Dedicated service offering for commercial roof owners covering 24-hour emergency leak response with documented roof maps and repair recommendations, recurring Preventive Roof Maintenance (PRM) programs that fulfill warranty requirements and prevent at least 90% of predictable leaks, tenant improvements including satellite dishes and HVAC tie-ins, and comprehensive roof condition reports for budgeting and due diligence.
• Division 7 & 3 Building Envelope Construction Building envelope systems beyond roofing and waterproofing, including expansion joint installation and sealing, elevated pedestal and paver systems for podium and plaza applications, caulking and sealant applications for durability and weather resistance, and roof accessories such as skylights and flashings, delivered to commercial general contractors and property owners.

Quantifiable outcome

• Preventive maintenance prevents at least 90% of predictable and costly leak occurrences
• +3 more outcomes

Named customers24 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

19 partnerships are on record, tiered core, flagship and minor.

• GAFcoreTechnology or Integration · 15 April 2026Alliance Roofing serves as certified installer for GAF roofing materials. In the GAF Community Matters initiative, GAF donates materials while Alliance provides installation labor for storm-resilient FORTIFIED Roof Systems for income-eligible homeowners in Alabama.
• Carlisle SynTec SystemscoreTechnology or IntegrationCertified installer of Carlisle single-ply roofing systems including TPO and EPDM membranes. Alliance has received multiple Perfection Awards and FleeceBACK Champions recognition from Carlisle.
• Sika (Sarnafil)coreTechnology or IntegrationCertified Elite Member installer for Sika Sarnafil and Sikaplan commercial roofing systems, recognized for high-quality installation standards.
• GacocoreTechnology or IntegrationCertified installer of Gaco roofing coatings and systems, recognized as Top Contractor in 2023.
• Blach ConstructionflagshipChannel Partner/ Reseller/ Distributor30+ year strategic partnership as preferred roofing subcontractor. Blach Construction is a major Bay Area general contractor and has consistently recognized Alliance as one of their best partners.
• Truebeck ConstructionflagshipChannel Partner/ Reseller/ DistributorValued strategic partner providing high-quality roofing and waterproofing services. Truebeck Foundation partnership for community involvement.
• DPR ConstructioncoreChannel Partner/ Reseller/ DistributorPreferred roofing contractor for complex commercial projects, working on significant DPR projects across the Bay Area.
• CBREcoreChannel Partner/ Reseller/ DistributorStrategic property management partner providing ongoing roofing services. CBRE recognizes Alliance as a true partner who understands owner perspectives.
• Bay Area Union Roofing and Waterproofing Apprenticeship ProgramcoreStrategic or Co-development PartnerTraining partnership ensuring skilled workforce development. Alliance augments union training with in-house classes including OSHA, heat awareness, fall protection, CPR-First Aid, confined space and aerial lifts.
• CertainTeedcoreTechnology or IntegrationCertified installer of CertainTeed residential and commercial roofing products including shingles and flat roofing systems.
• Owens CorningcoreTechnology or IntegrationCertified installer of Owens Corning roofing products including shingles, underlayment, and commercial systems.
• Johns ManvillecoreTechnology or IntegrationCertified installer of Johns Manville commercial roofing and insulation systems.
• Henry CompanycoreTechnology or IntegrationCertified installer of Henry waterproofing and roofing coatings systems.
• SopremacoreTechnology or IntegrationCertified installer of Soprema commercial roofing and waterproofing membrane systems.
• TremcocoreTechnology or IntegrationCertified installer of Tremco sealants, waterproofing, and roofing systems.
• BOMA (Building Owners and Managers Association)minorStrategic or Co-development PartnerActive member of BOMA San Francisco, BOMA Oakland/East Bay, and BOMA Silicon Valley chapters for industry networking and professional development.
• AGC (Associated General Contractors)minorStrategic or Co-development PartnerActive member of construction industry association for networking and advocacy.
• NRCA (National Roofing Contractors Association)minorStrategic or Co-development PartnerActive member of the national roofing industry association.
• USGBC (U.S. Green Building Council)minorStrategic or Co-development PartnerActive member supporting sustainable building practices and LEED certification projects.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Nations Roof: Large U.S. commercial roofing contractor providing installation, replacement, repair, and preventive maintenance for TPO, PVC, EPDM, metal, and modified bitumen systems—directly comparable in service mix and enterprise/customer-segment focus.
• Greenwood Industries: National commercial roofing and sheet metal contractor offering installation, repair, and custom fabrication for commercial and industrial facilities—closely comparable to Alliance's commercial roofing + in-house metal fabrication model.
• CentiMark Corporation: One of the largest commercial roofing and flooring contractors in North America, offering installation, repair, and maintenance for TPO, EPDM, PVC, metal, and built-up roofing systems across enterprise customers—directly comparable to Alliance's commercial install, re-roofing, and service-repair business.
• Roofing Corp of America: PE-backed commercial roofing platform aggregating regional contractors for new construction, re-roofing, and service across enterprise customers—comparable as a commercial roofing consolidator competing for institutional and commercial accounts.
• Bone Dry Roofing: Multi-state roofing contractor providing commercial and residential roofing installation, repair, and maintenance—comparable to Alliance's mix of steep and low-slope systems and emphasis on inspection-driven service.
• Tecta America: National commercial roofing platform offering new construction, re-roofing, maintenance, and waterproofing services to enterprise and institutional clients across the U.S., with comparable scope and customer types to Alliance's commercial roofing and waterproofing portfolio.
• Baker Roofing Company: Multi-regional commercial and residential roofing contractor offering installation, repair, and replacement of shingle, metal, flat, and modified systems for commercial and institutional clients—comparable in scope to Alliance's mixed steep-slope and low-slope offering.
• Flynn Group (Flynn Roofing): North American building envelope contractor providing commercial roofing, waterproofing, cladding, and glazing services to enterprise customers—comparable to Alliance's roofing + waterproofing + Division 7/3 envelope scope and enterprise go-to-market model.

Regional players

• Bigham-Taylor Roof Corporation: California-based commercial roofing contractor serving public and private clients in Northern California with installation, maintenance, and repair services—a direct regional competitor comparable to Alliance's Bay Area commercial roofing footprint.

Broad incumbents

• Tremco Roofing: Established national roofing manufacturer and contractor (part of RPM International) supplying membranes, coatings, and installation services across commercial, industrial, and institutional customers—an incumbent that overlaps with Alliance's certified-installer relationships and competes on larger-scale commercial projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/alliance-roofing-company-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Alliance Roofing