• 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

Erland Construction Hires MSI to Install HVAC System for New Hotel in Massachusetts

Erland Construction Hires MSI to Install HVAC System for New Hotel in Massachusetts

MSI Mechanical System recently started working at the construction site of Archer Hotel, a brand-new boutique hotel in Burlington, Massachusetts. The jobsite of the new 4 story hotel is located on 3rd Ave, in the Northwest Park. Plans for the full service 'boutique' style hotel includes; 147-rooms, integrated structured parking, a full-service restaurant with meeting space (indoor and outdoor seating) and an ancillary health facility with a swimming pool. Read More >

Featured Project

Featured Project - Tuscan Kitchen - Portsmouth, NH

Tuscan Kitchen - Portsmouth, NH

MSI Mechanical System completed work on Tuscan Brand's third restaurant at 581 Lafayette Road in Portsmouth, N.H.

MSI and Tuscan Brands have been working together for several years. In 2014, MSI completed HVAC work on Faro's second Tuscan Kitchen Restaurant & Market in Burlington, MA and was recognized by ABC VT/NH with an Excellence in Construction award for the project. The new restaurant in Portsmouth, N.H., officially opened its doors on Wednesday, March 1, 2017 for dining. The 10,000 sqft. restaurant is the site of the old Jerry Lewis movie theatre. The adjacent 6,500 sqft. Tuscan Market is scheduled to open soon. View Project >