HVAC & Plumbing Company in Weymouth, Hingham, Hanover, MA

Heating, Furnace, Boiler, HVAC & Plumbing Services

When you need a dependable HVAC company or plumbing company in Weymouth, Hingham, Hanover, MA, turn to Riggs Mechanical Plumbing and HVAC. We provide residential and commercial heating, cooling, boiler, furnace, and plumbing services, including 24/7 emergency service. From a furnace that won’t start to a boiler that stops working on a cold winter night, our experienced team is available to diagnose problems, perform repairs, and install reliable replacement systems. We also provide year-round HVAC maintenance, air conditioning, heat pump, water heater, and plumbing services.

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Service Area

We provide professional services across the Greater Boston and South Shore areas.

  • Technician crouches beside industrial machinery, inspecting components in a factory setting.

Complete HVAC & Plumbing Services

Riggs Mechanical provides comprehensive HVAC and plumbing services in Weymouth, Hingham, Hanover, MA and surrounding communities. Whether you need an emergency repair, routine maintenance, or a complete system replacement, we can help.

Furnace & Heating Services

Massachusetts winters put your heating system to the test. Our heating services help keep your home warm and comfortable when you need it most.

  • Furnace Repair
  • Furnace Installation & Replacement
  • Furnace Tune-Ups
  • Heating Repair
  • Heating Installation
  • Emergency No-Heat Service
  • Oil-to-Gas Conversions
  • Heating System Upgrades


If your furnace isn’t heating properly, keeps turning off, makes unusual noises, or won’t start, our team can inspect the system and determine whether repair or replacement is the right solution.

Furnace & Heating Services

Boiler Repair & Installation

Boilers are a common heating solution throughout Massachusetts, and a malfunctioning boiler can quickly leave your home without heat. Riggs Mechanical provides boiler repair, installation, replacement, and maintenance in Weymouth, Hingham, Hanover, MA. Our boiler services include:

  • Boiler Repair
  • Emergency Boiler Repair
  • Boiler Installation
  • Boiler Replacement
  • Boiler Tune-Ups
  • Tankless Boiler Installation
  • Boiler Troubleshooting
  • Heating System Upgrades


Whether you’re dealing with a boiler that isn’t heating, unusual noises, leaks, or a complete system failure, we’ll evaluate the problem and explain your repair or replacement options.

Boiler Services
  • Gray water heater with copper pipes in a utility room

24/7 Emergency HVAC & Heating Service

Heating and HVAC emergencies don’t always happen during regular business hours. A furnace or boiler can fail in the middle of the night, leaving your home without heat when temperatures are at their lowest. Riggs Mechanical provides 24/7 emergency HVAC service in Weymouth, Hingham, Hanover, MA for urgent heating and HVAC problems. We can respond to emergencies such as:

  • Furnace breakdowns
  • Boiler failures
  • No-heat emergencies
  • Heating system failures
  • HVAC breakdowns
  • Water heater emergencies
  • Major plumbing leaks
  • Other urgent plumbing and HVAC problems


When you need emergency service, we’ll work to identify the cause of the problem and determine the safest and most practical solution. Need Emergency HVAC or Boiler Service? Call Riggs Mechanical!

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  • Water heater and copper plumbing in a utility room with a pressure tank and exposed pipes.

Heating Installation & System Replacement

If your furnace or boiler is aging, requiring frequent repairs, or no longer keeping up with your home, replacement may be a better long-term option.


Riggs Mechanical provides professional heating installation in Weymouth, Hingham, Hanover, MA, helping homeowners choose heating equipment based on their home’s needs, budget, and efficiency goals.


We install a variety of heating equipment and work with leading brands, including Burnham, Peerless, Rheem, Ruud, American Standard, Weil- McLain, HydroTherm, Lochinvar, Carrier, and Ducane. We also partner with Mass Save for available interest-free loan options.

Heating Installation Services

Plumbing & Water Heater Services

Riggs Mechanical is more than an HVAC company. We also provide professional plumbing services in Weymouth, Hingham, Hanover, MA for residential and commercial customers. Our plumbing services include:

  • Plumbing Repairs
  • Water Heater Repair
  • Water Heater Installation
  • Tankless Water Heaters
  • Leak Repairs Pipe Repairs
  • Fixture Repairs
  • Emergency Plumbing
  • General Plumbing Services


From a leaking pipe to a water heater that stops producing hot water, our team can diagnose the issue and recommend the appropriate repair or replacement.

Plumbing Services
  • Basement utility wall with copper pipes, gauges, and a water heater beside HVAC equipment.

Year-Round HVAC Services

Your HVAC system needs attention throughout the year. In addition to heating and boiler services, Riggs Mechanical provides cooling and energy- efficiency solutions to help keep your property comfortable in every season.

What Our Customers Say

Our customers have trusted Riggs Mechanical for furnace replacements, boiler repairs, HVAC service, plumbing, and emergency heating situations. From helping homeowners restore heat during cold weather to diagnosing complicated heating systems, our goal is to provide responsive, professional service when you need it.

Frequently Asked Questions About Riggs Mechanical

  • What services does Riggs Mechanical provide?

    Riggs Mechanical provides comprehensive HVAC and plumbing services, including furnace repair and installation, boiler repair and installation, heating repairs, HVAC maintenance, air conditioning, heat pumps, mini- splits, water heaters, plumbing repairs, and 24/7 emergency HVAC and plumbing service.

  • Is Riggs Mechanical an HVAC company?

    Yes. Riggs Mechanical is a full-service HVAC company serving Weymouth, Hingham, Hanover, MA and surrounding areas. We provide heating and cooling repairs, installations, replacements, maintenance, and emergency HVAC services.

  • Do you provide emergency HVAC service?

    Yes. We provide 24/7 emergency HVAC service for urgent heating and cooling problems, including furnace breakdowns, boiler failures, and no- heat situations.

  • Do you offer emergency furnace repair?

    Yes. If your furnace stops working or your home suddenly has no heat, Riggs Mechanical provides emergency heating service to help diagnose and address the problem.

  • Do you provide emergency boiler repair?

    Yes. We provide emergency boiler repair for homeowners experiencing heating failures, boiler breakdowns, leaks, and other urgent boiler problems.

  • What should I do if my furnace stops working?

    First, check your thermostat and make sure your furnace has power. If the system still isn’t operating, avoid attempting complicated repairs yourself. Contact a professional HVAC technician to diagnose the issue, particularly if you smell gas, notice unusual electrical odors, or have another potential safety concern.

  • When should I repair my furnace instead of replacing it?

    The right choice depends on the furnace’s age, condition, repair history, efficiency, and cost of the repair. We can inspect your system and explain whether repairing the existing furnace or installing a replacement makes more sense.

  • How do I know if my boiler needs repair?

    Common warning signs include no heat, inconsistent heating, unusual noises, leaking water, frequent cycling, pressure problems, or a boiler that repeatedly shuts down. Having the system inspected early can help prevent a small issue from becoming a larger heating emergency.

  • Do you install new boilers?

    Yes. Riggs Mechanical provides boiler installation and replacement services for residential and commercial properties.

  • Do you install furnaces?

    Yes. We provide furnace installation and replacement services and can help you select an appropriate heating system for your property.

  • Do you provide heating maintenance?

    Yes. Regular furnace and boiler maintenance can help identify developing problems, maintain system performance, and reduce the likelihood of unexpected breakdowns.

  • Do you provide air conditioning repair?

    Yes. Our year-round HVAC services include AC repair, installation, replacement, and maintenance.

  • Do you work with heat pumps?

    Yes. Riggs Mechanical provides heat pump installation, repair, and maintenance services for systems that provide efficient heating and cooling.

  • Do you repair mini-splits?

    Yes. We provide mini-split installation, repair, and maintenance services.

  • Do you provide plumbing services?

    Yes. In addition to HVAC services, we provide residential and commercial plumbing services, including repairs, water heaters, tankless water heaters, leaks, and emergency plumbing.

  • Do you provide water heater installation?

    Yes. We provide water heater repair and installation services, including tankless water heater solutions.

  • Do you offer HVAC maintenance?

    Yes. Preventive HVAC maintenance can help identify potential problems, maintain equipment performance, and prepare your heating and cooling system for the demands of each season.

  • Does Riggs Mechanical serve businesses?

    Yes. Riggs Mechanical provides plumbing and HVAC services for residential, commercial, and industrial customers.

  • How long has Riggs Mechanical been in business?

    Riggs Mechanical has extensive experience providing plumbing and HVAC services. Our current website references more than 20 years of experience, while other site materials reference 30+ years, so we should confirm the exact company/owner experience before publishing a specific number.

  • What areas does Riggs Mechanical serve?

    Riggs Mechanical primarily serves Weymouth, Hingham, Hanover, MA and surrounding South Shore communities. Contact us to confirm whether we provide service at your specific location.

  • Is Riggs Mechanical available 24/7?

    Yes. We are available 24/7 for emergency plumbing and HVAC service.

Your Local HVAC & Plumbing Company

Whether you need furnace repair, emergency boiler service, heating installation, HVAC maintenance, AC repair, a new water heater, or emergency plumbing, Riggs Mechanical is ready to help. Serving Weymouth, Hingham, Hanover, MA and surrounding communities, we provide dependable HVAC, heating, boiler, and plumbing services throughout the year.


Call or Text Riggs Mechanical Today

(617) 828-1085