• From Concept through Completion

    Efficient, effective processes designed within your budget.
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  • Design Build Engineering

    Specialized in chillers plants, cooling towers, commercial air conditioning units.
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  • Quality Installations

    MSI provides quality installations that saving you money over the life cycle of your equipment.
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  • Preventative Maintenance & Servicing

    Certified technicians, with our 24 Hour Emergency Service. Guaranteed two-hour emergency response.
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  • Data Center and Mission Critical Systems

    Data Center and Mission Critical Systems
    We specialize in custom designs to protect your critical areas.
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  • Chilled Water Systems

    Chilled Water Systems
    From concept to completion we manage all your installation needs.
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  • Complete Heating Systems

    Complete Heating Systems
    We design, install and engineer complete systems that are cost-effective.
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  • HVAC Systems

    HVAC Systems
    We create solutions that deliver tangible bottom line results.
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  • HVAC Upgrades

    HVAC Upgrades
    Comfortable work environments promote clean air and energy savings.
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  • Energy Conservation

    Energy Conservation
    We offer eco-friendly LEED design and engineering.
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  • Sheet Metal & Duct Work

    Sheet Metal & Duct Work
    Custom commercial and industrial sheet metal fabrication.
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  • Mechanical Piping Systems

    Mechanical Piping Systems
    We offer expert installation of high or low pressure compression systems.
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  • Experienced & Skilled Technicians

    Experienced & Skilled Technicians
    We deliver quality work through our dedicated staff.
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  • 24 Hour Emergency Service

    24 Hour Emergency Service
    We are here when you need us, anytime day or night.
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  • Full Service Maintenance Contracts

    Full Service Maintenance Contracts
    We offer affordable monthly service agreements.
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  • EPA/OSHA Certified Technicians

    EPA/OSHA Certified Technicians
    Our safety records are among the best in the industry.
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Latest News

Brian Hooper Recognized Nationally for Humanitarian Work Associated with Building Dreams for Marines

Brian Hooper Recognized Nationally for Humanitarian Work Associated with Building Dreams for Marines

ACCA, the Indoor Environment & Energy Efficiency Association, honored Brian Hooper, Vice President of MSI Mechanical Systems, Inc. in Salem, New Hampshire, with the 2015 Skip Snyder Humanitarian Award. The award was presented as part of a Main Stage Session at ACCA 2015, taking place recently at the Gaylord Texan in Grapevine, TX. Read More >

Featured Project

Featured Project - Tuscan Kitchen

Tuscan Kitchen

MSI Mechanical Systems Inc. completed the second location of the Tuscan Kitchen Brands Restaurant in Burlington, Massachusetts.

Tuscan Brands is located in Salem, NH. Owner, Joe Faro wanted to expand to a second location in Burlington, Massachusetts. The new restaurant Joe designed started off with many challenges. MSI was asked to design the HVAC layout which included many obstacles due to space constraints. The location where Joe chose to have his new restaurant was a perfect location with high foot traffic and close proximity to a busy intersection near the Burlington Mall, but the location from a construction perspective was not ideal. View Project >