Hours of Operation: Available 24/7
  • 196 King St. Hanover, MA

THE HVAC EXPERTS

Keeping Your Home Comfortable Since 1947

Committed to providing exceptional HVAC installation, repair, and maintenance services to all.

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THE HVAC EXPERTS

Breathe Easy with Indoor Air Quality Solutions

Your one-stop shop for all your Heating and Cooling needs!

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THE HVAC EXPERTS

Comfort You Can Count On

Reliable HVAC Services in Hanover, MA & South Shore

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Free Estimate

    Cox's Old Colony

    Your Trusted Comfort Provider Since 1947

    Cox's Old Colony Heating, Air Conditioning & Plumbing has served homeowners and businesses in Hanover, MA, and the surrounding South Shore area for over 75 years. We specialize in residential and commercial HVAC service, offering repair, installation, maintenance, and indoor air quality solutions. Our team is experienced in sheet metal fabrication, air duct cleaning, and plumbing services. We're committed to your comfort, and our technicians are licensed, insured, and background-checked for your peace of mind. Contact Cox's Old Colony today for a free quote and experience the difference quality service makes!

    What We Offer

    Kick Back With Our Expert Help

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    Repair Services

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    New Installations

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    Upgrade/ Replacements

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    Extended Warranties

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    Sheet Metal Fabrication

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    Preventive Maintenence

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    VIEW ALL SERVICES

    Don’t Let Comfort Wait!

    Having HVAC issues? Our Hanover, MA, technicians can fix it fast! We also offer installations, maintenance plans, and indoor air quality solutions for homes and businesses throughout South Shore.

    280+

    Expert Technician

    120+

    Total Branches

    380+

    Project Complete

    350+

    Happy Customer
    Why Choose Us?

    Cox's Old Colony: Perfect Solution for Your Hanover, MA Home

    Since 1947, we've been the trusted choice for homeowners and businesses in Hanover, MA, and the South Shore for all their HVAC and indoor air quality needs. Our technicians understand the unique comfort challenges of our South Shore communities and hence provide personalized service you can rely on. Whether you need a repair, replacement, maintenance plan, or air quality upgrade, we offer complete services to keep your homes comfortable year-round. Contact us today and see why Cox's Old Colony is your one-stop shop for complete comfort!

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    How It Works

    How Cox's Old Colony Keeps You Comfortable
    in Hanover, MA & South Shore

    Schedule Your Appointment

    Contact us online or by phone to schedule an appointment for repairs, installations, maintenance, or a free consultation.

    Expert Diagnosis & Quote:

    Our expert technicians will diagnose the issue, discuss your needs, and provide a quote for your requested services.

    Quality Solutions & Installations:

    Our team uses top-quality materials and industry best practices to ensure your HVAC systems work correctly and efficiently.

    Long-Term Comfort & Peace of Mind:

    We offer preventive maintenance plans to keep your HVAC system running smoothly and efficiently, saving you money.

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    Asked Question

    Solutions for an every repair problem

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    Getting the job done wherever
    however positive matters
    how biggest or small

    Expert Technician

    Our dedicated and expert member

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    All Member
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    Senior Technician

    Jashon Roy

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    Senior Technician

    Demica Master

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    Senior Technician

    Joe Root

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    Customer Reviews

    Take it from our Happy Clients

    They replaced my Furnace and Central Air Conditioning in just a day and a half. They also threw in a new faucet installation at no extra charge. Everything with these guys is about making the customer happy. I will definitely use them again.

    Helen Paul

    We finished renovations on half of the bathroom before we realized we were going to need to make some changes to the plumbing. We called Cox and they came out to give us an assessment.

    Lindsay Cameron

    I had a leakage in my kitchen sink so I called Cox's Old Colony and within 30 minutes they arrived. The price was cool and I must say they are very professional with their services. Now my leakage is fixed and I am a happy customer.

    Vinny

    Old Colony has the best Customer Service hands down; They made sure I knew the costs and fees before proceeding with the job. They were polite and very attentive and even spent extra time making sure everything worked properly.

    JayAmor’s Mixed Events

    I had a good experience with Cox's Old Colony. They installed a complete heating and AC system in our home (2-furnaces and 2-AC). The crew was very professional, left my house clean every night and let me know when they will arrive the next day.

    Sean Finnie

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