24/7 Emergency Service

8 Fruean Ave, South Yarmouth, MA 02664

(508) 394-7501


Make indoor air quality a priority with services from Cape Cod Mechanical Systems LLC. As a smaller, locally owned and operated HVAC company, we apply 35 years of knowledge to every challenge. We are prepared for and well-versed in residential, commercial and light commercial needs. While our resources allow quick and effective completion of the most complex services, we are unlike the bigger corporations in our personalized approach.

Indoor Air Quality Solutions from Cape Cod Mechanical Systems LLC

At Cape Cod Mechanical Systems LLC we don’t guess, generalize or sell you on processes or equipment you don’t need. Utilizing state-of-the-art IAQ technology, our licensed, insured and extensively trained technicians complete accurate testing. We explain findings as well as potential proactive measures. Our strategies for improvement are customized to best suit the concerns of the indoor space. We focus on a whole-home, efficient and effective solution.

Humidifiers, Air Purifiers, and More

From humid summers and overly dry winter air to a wide assortment of contaminants that become trapped indoors, Cape Cod Mechanical Systems LLC offers quiet, low-maintenance and powerful IAQ innovations, such as dehumidifiers, humidifiers, heat recovery ventilators, air purifiers and germicidal UV lights. We further specialize in beneficial services such as ducts sealing and HVAC maintenance. Don’t hesitate to reach out to us online or by calling (508) 394-7501 to take advantage of quality and reliability since 1989. Cape Cod Mechanical Systems LLC achieves satisfying outcomes across Provincetown, Cape Cod, and Hyannis.

AC Service, Air Conditioner Repair, Plumbing Services, Air Conditioning Installation & HVAC Installation Cape Cod, MA, Hyannis, MA, South Yarmouth, MA, Yarmouth, MA, Dennis, MA & Barnstable, MA

AC Repair in Cape Cod, MA | Air Conditioning Installation Hyannis, MA | Air Conditioner Service South Yarmouth, MA

AC ServiceHVAC InstallationPlumbing ServicesAC RepairAir Conditioning Installation ∴ Cape Cod, MA ∴ South Yarmouth, MA ∴ Yarmouth, MA

We’re Here When You Need Us.

Experience reliable HVAC service that keeps your home comfortable year-round. Contact us now to schedule maintenance, repairs, or installation tailored to your needs.

Schedule Service

Featured Five-Star
Customer Reviews

Water heater broke called the next morning. They were there that afternoon and replaced it in 1 day. Happy wife happy life. Saved a lot of money on Tylenol.

Jonathan C.

Great place, great work and great prices. Had another plumbing company start a job and do very poor work. Cape Cod Mechanical came in and Sean fixed my problem in under an hour.

Daniel S.

The technician from Cape Cod Mechanical, Robert, was friendly, efficient, and very knowledgeable. He has come for service twice, to tune up my heating system, and to service my air conditioning.

John S.

Whenever I have an issue Cape Cod Mechanical is very responsive and the plumbers are very friendly. I’m lucky to have this relationship.

Richard F.

Excellent technicians very knowledgeable. And great rates the owner Sid Horton Has very nice people working there, especially the secretary Deanna. Very nice woman.

Matthew J.
These Are The
Brands We Trust

We offer top-quality products from trusted brands, ensuring reliability and performance for all your needs. With a commitment to excellence, we provide a range of options tailored to your requirements, guaranteeing peace of mind and satisfaction with every purchase.

American Standard Logo
Carrier Logo
Bryant Logo
Payne Logo
York Logo
Goodman Logo
Gibson Logo
Trane Logo
Whirlpool Logo
Heil Logo
Grandaire Logo
Coleman Logo
Amana Logo
Ruud Logo
Honeywell Logo
Frigidaire Logo
Rheem Logo
Weather King Logo
Tempstar Logo