M&M Manufacturing Company is a diversified sheet metal fabricator of round, rectangular, and spiral HVAC duct pipe and fittings for residential and commercial applications. M&M also offers general sheet metal products for roofing, ventilating, and architectural applications.

M&M provides superior high quality products with outstanding service, creating satisfied customers. From a two-person shop in 1958 to today's five technologically advanced manufacturing units, M&M has developed a reputation for reliability and service second to none. Whether you need prefabricated duct, custom HVAC sheet metal products, or precision tolerance sheet metal fabrications, you can depend on M&M!

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M&M has been building Roof Curbs, Isolation Curbs, Equipment Rails and Fan Curbs for a long time. We've just neglected to tell you about it. Please visit our new website www.mmcurbs.com to get a quick quote on your curb needs.

The Green Impact of Efficient Duct Design Aug 2009 RSES Journal article - Proper sizing and installing ductwork can make an HVAC system and the system owner "green" in more ways than one.

The Jones family of Sugar Land, Texas volunteered their 1978 home for a complete Energy Savings makeover. A team of manufacturers and local contractors replaced the HVAC and duct systems and made other improvements on this home. The goal? Reduce the energy consumption by 50% or more. For full details download. Energy Saving Makeover