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  • Cost-Saving Membership Plans
  • 30+ Years of Combined Experience
  • Financing & Rebates Available
  • Locally Owned & Operated

See What Your Neighbors Are Saying

    “Great guys, great work.”
    “Matt and Dave were very responsive, knowledgeable, and professional. Dave showed up when he said he would and took care of the work we agreed on quickly.”
    - Jamie P.
    “I highly recommend them!”
    “We placed a call for no AC in the heatwave, and they were there that day! Dave was great! He was honest and completed the work quickly!”
    - Robert B.
    “Call them—you will be very pleased you did!”
    “Dave and his crew from Monomoy Mechanical did an excellent job on both helping us pick out a new A/C system and installing it. They even went the extra mile to stay late to make sure we had a working system that night! We couldn’t be happier!”
    - Bruce H.
    “So happy I finally found someone honest!”
    “Dave is awesome, definitely my go-to guy. He’s done work for me at my business and home. He’s always on time, honest, and very informative. Fits you into his schedule super fast and answers your calls right away. The pricing is very fair!”
    - Karina H.
    “I will definitely call them for any future mechanical issues.”
    “Called Monomoy Mechanical after trying to troubleshoot my AC with no luck. They arrived within two hours. They immediately identified the problem, provided a solution, and fixed it. Very reasonably priced! I highly recommend Monomoy Mechanical!”
    - Mary S.
Areas We Serve

Monomoy Mechanical is proud to serve the local communities on Cape Cod

  • Barnstable Town
  • Brewster
  • Chatham
  • Dennis
  • Dennis Port
  • East Dennis
  • East Falmouth
  • East Sandwich
  • Eastham
  • Forestdale
  • Harwich
  • Mashpee
  • North Eastham
  • Northwest Harwich
  • Orleans
  • Sandwich
  • South Dennis
  • South Yarmouth
  • Wellfleet
  • West Chatham
  • West Dennis
  • West Falmouth
  • West Yarmouth
  • Yarmouth Port

Frequently Asked Questions

Have questions? We are here to help. Still have questions or can't find the answer you need? Give us a call at 508-623-6952 today!

  • When should I consider replacing my system?

    Replacement becomes necessary when the existing hardware is simply too old or damaged to be worth repairing. Owners may also opt to replace early for the sake of energy efficiency or greater comfort control.

  • Why is my AC not getting as cold as before?

    Low refrigerant levels are a common cause of poor AC performance. You may also notice a drop in output due to other problems, like insufficient insulation or poor air circulation.

  • What should I do if my unit stops working suddenly?

    Suddenly losing your AC in the height of summer is no laughing matter. Give us a call for emergency air conditioning repair and other urgent services.

  • What are some of the most common problems with air conditioners?

    Faults in the internal circuitry, component failure, refrigerant leaks, and insufficient BTU output for the target space are all common issues in New England.

Ready for Reliable Service?

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Trusted Brands. Proven Performance.

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  • Bosch
  • Navien
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