Hours of Operation: Available 24/7
  • 196 King St. Hanover, MA   |   Phone : 781-536-8197

COX’S OLD COLONY HVAC

Top HVAC Company for Your Heating and Cooling Needs

We provide reliable heating and cooling solutions to keep your home or business comfortable year-round.

Explore Our Services

COX’S OLD COLONY HVAC

Trusted HVACs since 1947

Providing Residential and Commercial HVAC installation, repair, and maintenance services in Hanover, MA.

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COX’S OLD COLONY HVAC

Breathe Easy With Indoor Air Quality Solutions

Your one-stop shop for all heating and cooling needs!

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    Cox’s Old Colony HVAC & Plumbing

    Your Trusted HVAC Contractor Since 1947

    Your Trusted HVAC Contractor Since 1947
    Welcome to Cox's Old Colony HVAC & Plumbing, where comfort meets reliability. As a leading HVAC Contractor and HVAC installation service provider in Hanover, MA, our team takes pride in keeping homes and businesses comfortable, safe, and energy-efficient. Whether facing a chilly winter night or a scorching summer day, local families and businesses know they can count on prompt, honest service and expert solutions. With 75 years of industry expertise, we are the most trusted choice for homeowners and businesses in Hanover and the South Shore.

    Our Services in Hanover, MA & Surrounding Areas.

    Whether you need a quick fix, routine maintenance, or a completely new system, Cox’s Old Colony delivers it all. We work on all brands and models, and our work is always covered by warranty.

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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

    Get HVAC & Plumbing Services in Hanover, MA & Surrounding Areas

    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.
    Contact us for HVAC Services Today!
    Why Choose Us?

    Why Choose Us for HVAC and Plumbing in Hanover, MA?

    Since 1947, we've been the trusted choice for homeowners and businesses in Hanover, MA, and the South Shore for all their HVAC installation services and indoor air quality needs. Our technicians understand the unique comfort challenges of our South Shore communities and 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 home or business comfortable year-round. Contact us today and see why Cox's Old Colony is your one-stop shop for total comfort!

    • Locally Owned and Operated: Serving Hanover and neighboring communities for decades, we understand local needs and climate challenges.
    • Skilled, Certified Technicians: Each team member is fully licensed and receives ongoing training for both residential and commercial HVAC repair services.
    • Clear, Upfront Pricing: Receive transparent quotes and honest recommendations with no hidden costs.
    • Prompt Scheduling: Reliable arrival times with 24/7 HVAC repair services available for emergencies.
    • Respect for Your Property: Our crews leave every workspace neat and clean, with attention to every detail.

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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.

    Service Areas—Always Nearby When Needed

    Based in Hanover, MA, Cox’s Old Colony serves both homeowners and businesses throughout the South Shore. Are you looking for HVAC repair services? We’re proud to be your go-to provider in the following areas:

    Take it From Our Happy Clients

    Why Homeowners & Businesses Trust Cox’s Old Colony

    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

    FAQs

    Frequently Asked Questions About HVAC & Plumbing Hanover MA

    Our comprehensive HVAC maintenance service in Hanover, MA, includes a system inspection, filter changes, checking for leaks, safety checks, cleaning, and performance tuning. We identify small issues before they become major repairs.

    Every home or business is different. Pricing depends on system size, repair complexity, and specific needs. We offer free up-front estimates, and you’ll always know what to expect before work begins.

    Yes. Our technicians are on call for emergency HVAC services. If your system breaks down unexpectedly, call us any time—day or night.

    Absolutely! Whether you own a home, retail space, or commercial property, we offer both residential and commercial HVAC installation services Hanover and nearby towns.

    We are fully licensed and insured, with decades of experience as a trusted local plumbing and HVAC company in Hanover, MA.