Mechanical Design Services, Inc. (MDS) is an engineering design and construction company focused on full-service HVAC work and related HVAC Equipment, Automated Controls, Indoor Air Quality, Energy Management and Plumbing. Backed by a 24 hour service fleet and supply of HVAC parts, the company serves customers primarily in eastern Massachusetts and within the greater Boston I-495 beltway. MDS was founded in 1986 and is led by a Senior Management Team with over 60 years of combined design and build experience. Learn more about MDS.
We pride ourselves on our ability to generate a complete set of project plans for all building projects, estimate the price accurately and then build out the project on time and on budget. Leading general contractors, architects and building managers rely on MDS for its design/build expertise in HVAC systems, cooling systems, temperature control, process piping and air quality systems.More about Design Services
Where project plans already exist, we are equally prepared to implement them. Working from your drawings, our team of project managers and installation crew of welders, plumbers and trade technicians will get the job done right using the industry's leading HVAC systems.More about Plan & Services
We offer a full range of maintenance service contracts and our independent team of service technicians is available on a 24-hour basis. You get the service you need, when you need it.More about Maintenance Services