Heating, Ventilation & Air Conditioning

Mechanical Construction Services provides a comprehensive range of Heating, Ventilating, Air Conditioning (HVAC) and related mechanical contracting services for commercial, institutional and industrial HVAC systems. We work hard to help your business run smoothly so you can avoid costly repairs and production losses.

Knowledge, Integrity, Experience

The first choice of architects, engineers and building managers, with over 100 years of combined experience in HVAC contracting including design & build, retrofit and service. Mechanical Construction Services or “Maximum Cost Savings” (MCS), That’s what we can do for you, maximize your heating and air conditioning business so that your company can save money.

24-Hour Service

We provide our customers with 24-hours, 7-days-a-week HVAC emergency service to keep your system operating at peak efficiency.

``Maximize Cost Savings`` MCS

Our preventative maintenance programs on HVAC for building automation/climate control systems can extend your ability to do more with less.

Complete Installation

With our professional, experienced team of installation technicians MCS can help you with all of your Industrial, Commercial HVAC projects.

Preventative Maintenance

Our expert sales team will help create a preventative maintenance program tailor-made for your business to ensure you have ZERO downtime and reduced service calls.

Ready to join the best?

Mechanical Construction & Services, Inc. has been been a full service HVAC contractor serving Massachusetts and New Hampshire since 1996. Contact us for an estimate.


``With MCS's comprehensive service and preventative maintenance programs I don't have to give my system a second thought.``

Carl Fiantago | Facilities Manager | Connector Park, LLC