Professional & Efficient HVAC & Ventilation Service

Commercial Services_Douglas Mechanical Services

Commercial HVAC Service & Repair in Hartford, Middlesex, New London Counties

We offer you the highest quality of service available and will do whatever it takes to give you the best possible experience for all your home comfort needs. With our professional, experienced, and friendly technicians, we are confident that Douglas Mechanical Services is among the best choice in the business to provide you with all your business comfort needs.

Looking for residential services?

Residential HVAC

Rooftop HVAC Installation

Ensure the ultimate comfort of your business with rooftop HVAC systems! These convenient and efficient systems can provide reliable climate control while eliminating noise inside, reducing disruption from maintenance, and making ongoing upkeep as easy – and affordable – as ever. Invest in quality temperature control today for year-round peace of mind at a budget-friendly cost.

Custom Duct Work

We can custom-build ductwork that fits your space, your needs, and your budget. Whether you’re replacing outdated ductwork or building a new commercial space, we can help you create a system that maximizes efficiency and meets your specific requirements.

Commercial Water Heater

For businesses, organizations, and commercial buildings of all sizes — from the largest to smallest — a reliable hot water supply is essential. That’s why investing in dependable commercial water heaters can be such an important decision: They are designed for improved productivity, reduced energy costs, and increased safety, and their durability ensures years of operation even in tough working conditions. When seeking out a consistent source of hot water, trust that quality-made commercial heating systems offer long-term satisfaction with every use!