M & M Manufacturing Company

What M & M Manufacturing Company does

M & M Manufacturing Company is a Texas-based sheet metal fabricator founded in 1958 in Fort Worth, producing HVAC ductwork, fittings, and accessories for the air distribution and ventilation market. Its product portfolio spans round, rectangular, oval, and spiral ductwork, including branded lines such as DucTite factory-sealed register boxes, X-Act adjustable roof jacks, R-4 and R-6 insulated products, commercial curbs and curb adapters, and 400+ individual SKUs across HVAC, roofing, and accessory categories. Manufacturing is distributed across 310,000+ sq. ft. of production space in Fort Worth, Garland (Dallas), Austin, and Houston, with capabilities including coil processing, laser cutting, water jet cutting, and custom OEM fabrication.

The company sells primarily through a direct, quote-based model to residential and commercial HVAC contractors, homebuilders, and wholesale distributors, supplemented by a Convenience Products line with no minimum orders and free freight for SMB and individual buyers. Distribution is enabled by a real-time inventory management system and an owned delivery fleet that achieves same-day or next-day delivery across Southern Texas and Louisiana, with separate reach into the Midwest and Northeast U.S. through the 2016 acquisition of Snappy Metal Products.

In April 2021 M&M was acquired by Marmon Holdings, Inc., a Berkshire Hathaway company, and now operates within Marmon's Plumbing and Refrigeration group. The business has historically grown through a combination of organic facility expansion and bolt-on acquisitions, and its current strategic positioning emphasizes scale, speed of delivery, and vertical integration in custom sheet metal fabrication rather than software or AI-enabled differentiation.

Name

M & M Manufacturing Company

Legal name

M&M Manufacturing, Inc.

Website

https://mmmfg.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

501–1,000 employees

Short description

M & M Manufacturing is a Fort Worth-based sheet metal fabricator producing HVAC ductwork, fittings, and accessories for residential and commercial construction markets, with 310,000+ sq. ft. of capacity across Texas and additional U.S. reach through the Snappy and Wilkins acquisitions.

Ownership category

akta.pro rank

Headquarters

HQ city

Fort Worth

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. HVAC Sheet Metal Products: Sale of sheet metal ductwork, fittings, and accessories including round, rectangular, oval and spiral ductwork for residential and commercial construction
2. Custom Fabrication Services: Custom OEM manufacturing, private labeling, and packaging services for HVAC products
3. Specialty Products: Specialized products including DucTite factory-sealed systems, convenience products with no minimum orders, and custom commercial products

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

M&M Manufacturing produces a comprehensive range of round, rectangular, oval, and spiral ductwork, fittings, and accessories for residential and commercial HVAC and air distribution applications. The company also provides custom OEM fabrication, private labeling, packaging services, and next-day delivery through its own delivery fleet serving the U.S. Southwest, Midwest, and Northeast markets.

Product overview

M&M Manufacturing is one of the country's largest producers of sheet metal products, primarily servicing the air distribution and ventilation market. The company operates as a single unified manufacturer offering HVAC and sheet metal products rather than a platform-plus-modules architecture. The core product portfolio includes round, rectangular, oval, and spiral ductwork, fittings, and accessories for residential and commercial construction. Key product lines include Round Snaplock Pipe (24-30 gauge galvanized options), Insulated Register Boxes (R-4 and R-6 variants), Dampers, Adjustable Round Elbows, Register Boots, Starting Collars, Venting Products, Roofing Products, and Accessories. The company also offers commercial-grade Spiral Pipe & Fittings, Rectangular Duct & Fittings, and Curbs & Curb Adapters. Acquired brand Snappy™ Metal Products serves the Midwest and Northeast residential HVAC markets. Service offerings include Custom Fabrication (water jet/laser cutting), Delivery with next-day shipping, Estimation using Quote Express Software, and Literature/Submittal Drawings. The product portfolio encompasses over 400+ individual SKUs across HVAC, commercial, roofing, and accessory categories.

Differentiator

Problem solved

Functional benefit

Brands

• Snappy™: HVAC sheet metal duct and accessories brand acquired in 2016, serving Midwest and Northeast United States customers.

Products and services

• HVAC Ductwork and Fittings

Quantifiable outcome

• Same-day or next-day delivery for most orders
• +2 more outcomes

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

One partnership is on record.

• Snappy Metal ProductscoreStrategic or Co-development Partner · 15 December 2016M&M acquired Snappy Metal Products on December 15, 2016. Snappy is a leading supplier of metal duct systems for the residential HVAC market, serving customers in the Midwest and Northeast United States. This acquisition expanded M&M's product offerings and geographic market coverage.

Scale indicators6 records

Recent moves9 records

Expansion highlights4 records

Direct peers

• Lindab: Swedish-based global manufacturer of HVAC ductwork, fittings, and indoor climate solutions. Closest direct competitor in the HVAC sheet metal ductwork category, serving both residential and commercial construction worldwide.
• Sheet Metal Connectors: US-based manufacturer of HVAC ductwork connectors, fittings, and accessories. Direct competitor in residential and light commercial sheet metal duct components with overlapping customer base of HVAC contractors.
• Ductmate Industries: US manufacturer of ductwork connection systems, including the proprietary DuctMate system for rectangular duct assembly. Direct peer competing in the same HVAC duct fabrication space with comparable contractor customers.
• Accuduct Manufacturing: US-based custom HVAC ductwork and sheet metal fabricator serving commercial and industrial markets. Direct peer with comparable product portfolio in spiral, rectangular, and oval ductwork.
• Hart & Cooley: US manufacturer of HVAC products including registers, grilles, ductwork components, and specialty sheet metal items. Direct peer with overlapping product lines sold through HVAC distribution channels.
• McGill AirFlow: US manufacturer of commercial HVAC ductwork, fittings, and fabricated sheet metal products. Direct peer serving commercial construction with similar rectangular and spiral duct offerings.
• SEMCO: US manufacturer of HVAC ductwork, energy recovery ventilators, and indoor air quality products. Direct peer in commercial and residential HVAC sheet metal fabrication.

Broad incumbents

• Trane Technologies: Global HVAC equipment OEM with broader portfolio of heating, cooling, and building systems. Not a direct ductwork competitor but a broad incumbent whose commercial strategy can pull ductwork-related demand and pricing.
• Carrier Global: Global HVAC and building solutions major. Broad incumbent whose system-level offerings and channel relationships influence the addressable market for ductwork suppliers like M&M.
• Watsco: Largest US HVAC distribution company. Not a manufacturer but a critical channel partner and benchmark for how ductwork and HVAC accessories flow to contractors — comparable go-to-market dynamics.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mmmfg

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about M & M Manufacturing Company