Providing Heating & Cooling Service by Knowledgeable Technicians

staff at Douglas Mechanical Services | Berlin, CT

Rely On Our Experienced Professionals

At Douglas Mechanical Services our goal is to answer all of your HVAC questions. We’re a full-service company with everything you need for air conditioning, heating, and repair, including maintenance and installation. Conveniently located in Berlin, CT, we serve Hartford, Middlesex, New London counties.

We are a team that are professional, that strive for proficiency and staying up to state codes. Because of this, we have maintained our reputation for quality service since 2004. We always strive for professionalism and efficiency, ensuring your job is completed on time.

We love what we do, and it shows in the work that we perform daily. When you choose Douglas Mechanical Services for your project needs, you will be treated with professionalism and courtesy every step of the way. Our goal is for you to be satisfied with our service, so give us a call today!

Call Our Courteous & Knowledgeable Pros!

Our Team

Our Leaders

Jill Sturtevant

Owner / President

Doug Sturtevant

Owner / Operator
S-1 Licensed HVAC Technician

Oliver H. Oron

S-2 Licensed HVAC / Lead Technician

Our Technicians


Installations Supervisor / Lead Technician
S-2 Licensed HVAC / Sheetmetal Technician


Licensed S2 Technician / Lead Technician


Licensed B2 Technician


Licensed B2 Technician


Licensed B2 Technician


Licensed S2 Technician


Licensed B2 Technician


Licensed B2 Technician

Our Office Team


Commercial Administrative Assistant


Residential Assistant

About Us

Douglas Mechanical Services of Connecticut is a medium, family-owned business that has been in operation since 2004. We provide quality air conditioning and heating services to Berlin and the surrounding areas.

Our company was founded by Douglas Sturtevant, who has been in the industry for over 30 years. He has been working in the field since 1986 when he first started as an apprentice with United Mechanical. During his time there he learned all about the trade from some of their most experienced technicians.

After completing his apprenticeship program at Goodwin Technical School, Doug became an expert on all of the latest technology used in HVAC systems. He also learned how to work safely and efficiently—the two most important things when running your own business!

When Doug decided it was time for him to start his own company, he counted on the spirit and skill of his wife Jill. She is responsible for keeping their books up-to-date and ensuring that all employees are paid on time each week. She also helps with HR, PR and the legalities of day to day operations.

For more information about our team, please contact us at 860-357-4952 today!

Satellite Office in Old Saybrook, CT

CT LIC.# S1-394918

Monday - Friday 7:45 A.M. – 4:45 P.M.