What Gilbert & Becker does

Gilbert & Becker Co., Inc. is a full-service union roofing contractor headquartered in Dorchester, Massachusetts, specializing in slate, copper, and historical restoration roofing since 1947. The company serves Eastern Massachusetts with four integrated service lines: (1) professional installation of EPDM, TPO, PVC, fluid-applied, slate and tile, sheet metal, and green roofing systems; (2) supply of new and salvaged roofing materials including slate, tile, fasteners, and membranes; (3) custom sheet metal fabrication of architectural metal products such as gutters, downspouts, conductor heads, cornices, and flashings in copper, stainless steel, galvanized steel, and specialty metals; and (4) specialty plumbing and masonry components. The company holds approved applicator status across virtually every roofing system type installed in its region and is signatory to agreements with Roofer's Local #33 and Sheet Metal Local #17, drawing on union craftsmen for its work. An in-house sheet metal fabrication shop underpins its ability to deliver custom architectural metalwork for technically complex projects.

Name

Gilbert & Becker

Legal name

Gilbert & Becker Co., Inc.

Website

https://gilbertandbecker.com

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

51–100 employees

Short description

Gilbert & Becker is a full-service union roofing contractor founded in 1947, specializing in slate, copper, and historic restoration roofing for institutions, commercial contractors, and homeowners across Eastern Massachusetts.

Ownership category

akta.pro rank

Product category

Commercial Roofing Services

NAICS

Roofing Contractors (23816), Roofing Contractors (238160)

SIC

Construction - Special Trade Contractors (1700), Sheet Metal Work (3444)

akta.pro primary industry

Soffit, Fascia & Eaves Repair/Replacement (HSAPAKAH)

akta.pro secondary industries

Slate Roofing (IMADAFAD), Skylight Window Repair & Resealing (Non-roof structural) (HSAGAEAL)

Keywords

• Commercial roofing services
• Historic roof restoration
• Slate copper roofing
• Architectural sheet metal
• Union roofing contractor

Headquarters

HQ city

Dorchester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Roofing Installation Services: Professional installation of roofing systems including slate, copper, EPDM, TPO, PVC, fluid applied, sheet metal roofing, and green roofing. Service-based revenue from labor and installation expertise.
2. Roofing Products and Materials Supply: Supply of roofing materials including new and salvaged slate and tile, roofing nails (copper, stainless and galvanized), slate hooks, EPDM, TPO, PVC, insulation, fasteners, adhesives, underlayments, pitch boxes, vent pipes, and dryer vents.
3. Sheet Metal Products and Custom Fabrication: Custom fabrication and supply of sheet metal products including gutters, downspouts, cleats, copings, ridge, valleys, chimney caps, skylights, standing seam, flat seam, conductor boxes, and misc. metal flashings in copper, zinc coated copper, stainless steel, galvanized steel, and specialty materials.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Gilbert & Becker is a full-service union roofing contractor that installs, supplies, and fabricates roofing systems for historic, commercial, and residential projects in Eastern Massachusetts. Its core offerings include professional installation of slate, copper, EPDM, TPO, PVC, fluid-applied, sheet metal, and green roofing systems; supply of new and salvaged roofing materials; and in-house custom fabrication of architectural sheet metal components such as gutters, downspouts, flashings, cornices, and conductor heads.

Product overview

Gilbert & Becker is a full-service Union Roofing Contractor serving Eastern Massachusetts since 1947, offering a unified portfolio of specialty roofing services and products. The core offering consists of four integrated service lines: (1) Roofing Installation — professional installation of multiple roofing systems including EPDM, TPO, PVC, fluid applied, slate and tile, sheet metal, and green roofing; (2) Roofing Supply — distribution of new and salvaged slate and tile plus all necessary hardware and materials; (3) Sheet Metal Supply & Custom Fabrication — in-house fabrication of architectural metal products including gutters, downspouts, and custom flashings in various metals; and (4) Plumbing & Masonry Products — specialty plumbing and masonry components. The company also offers curbside and rooftop delivery with a boom truck, maintaining the most competitive pricing in the Boston area with prompt turnaround times.

Differentiator

Problem solved

Functional benefit

Products and services

• Roofing Installation Professional installation of EPDM, TPO, PVC, fluid-applied, slate and tile, sheet metal, and green roofing systems for commercial, institutional, historic, and residential projects. Includes licensed abatement contractor services.
• Roofing Supply Supply of new and salvaged slate and tile, roofing nails (copper, stainless, galvanized), slate hooks, snow guards, EPDM, TPO, PVC membranes, insulation, fasteners, plates, adhesives, underlayments, pitch boxes, vent pipes, and dryer vents.
• Sheet Metal Supply and Custom Fabrication In-house custom fabrication of architectural sheet metal products including gutters, downspouts, cleats, copings, ridge, valleys, chimney caps, skylights, standing seam, flat seam, conductor boxes, and miscellaneous metal flashings in colored aluminum, copper, zinc-coated copper, stainless steel, and galvanized steel.
• Plumbing and Masonry Products Specialty plumbing components including copper shower pans and galvanized safety pans, plus masonry components including through-wall flashing, dowel caps, termination bars (copper and stainless), and window pans.
• Buy Back Used Slate Program to purchase back used slate, supporting reclamation and reuse of historic roofing materials in Eastern Massachusetts.

Quantifiable outcome

• Historic restoration of Boston Public Library included installation of over 9 tons of copper
• +1 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Greenwood IndustriescoreStrategic or Co-development Partner · 30 April 2026Greenwood Industries acquired Gilbert & Becker Co., Inc. in April 2026. The acquisition strengthens Greenwood's ability to deliver technically complex, high-visibility roofing projects across the Northeast. Gilbert & Becker maintains its existing name, leadership, and operations, preserving local expertise while benefiting from Greenwood's platform of market-leading specialty contractors.
• Slate Roofing Contractors AssociationminorOthersIndustry membership association for slate roofing contractors providing standards, training, and professional development.
• National Roofing Contractors AssociationminorOthersIndustry membership association for roofing contractors providing standards, certification, and advocacy.
• North East Roofing Contractors AssociationminorOthersRegional industry association for roofing contractors in the Northeast United States.
• Associated Subcontractors of MassachusettsminorOthersState-level industry association for subcontractors in Massachusetts.
• National Slate AssociationminorOthersCharter member industry association dedicated to slate roofing. Gilbert & Becker is a founding/charter member demonstrating early industry leadership.
• Roofer's Local #33coreOthersSignatory agreement with Roofer's Local #33 union providing skilled labor for roofing installation work.
• Sheet Metal Local #17coreOthersSignatory agreement with Sheet Metal Local #17 union providing skilled craftsmen for sheet metal fabrication and installation.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• CentiMark Corporation: National commercial roofing and flooring contractor serving customers across multiple roofing system types and offering service/maintenance contracts. Comparable to G&B as a full-service specialty commercial roofer with national footprint.
• Flynn Group (Flynn Roofing): Large North American commercial roofing and glazing contractor with sheet metal fabrication capabilities. Direct overlap with G&B's roofing, sheet metal, and architectural metal work for institutional and commercial customers.
• Tecta America Corporation: Largest commercial roofing contractor in the U.S., offering installation, repair, and maintenance across most major roofing systems. Direct competitor for institutional and commercial roofing scopes that overlap with G&B's EPDM/TPO/PVC and sheet metal work.
• Nations Roof: National commercial roofing contractor installing and servicing a wide range of single-ply, metal, and steep-slope roofing systems. Comparable service scope to G&B's approved-applicator roster.

Broad incumbents

• Tremco Roofing and Building Maintenance: Established manufacturer-and-installer offering roofing systems, service, and maintenance across commercial facilities. Comparable to G&B for EPDM/TPO/PVC scopes where G&B holds approved-applicator status.
• Greenwood Industries: Parent platform that acquired G&B in April 2026, operating a portfolio of specialty roofing contractors across the Northeast. Directly comparable as a specialty commercial roofing rollup with historic and complex project expertise.
• Roofing Corporation of America (RCA): Rollup platform of regional commercial roofing contractors across the U.S. Comparable to G&B in operating model as a multi-brand specialty roofing platform, though RCA is broader and less focused on historic restoration.

Others

• WTI (Weatherproofing Technologies Inc.): Tremco-affiliated specialty contractor providing roofing maintenance, repair, and weatherproofing services. Comparable as an institutional/commercial roofing service provider adjacent to G&B's roofing and abatement services.

Regional players

• Baker Roofing Company: Mid-Atlantic and Southeast commercial roofing contractor offering residential, commercial, and historic restoration roofing services. Comparable specialty mix to G&B, though operating in a different geography.
• Bone Dry Roofing: Multi-state roofing contractor with residential and commercial roofing, including repair and installation across multiple systems. Loosely comparable to G&B on commercial roofing scopes but largely residential-weighted.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance1 record

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 Gilbert & Becker