Servicing Massachusetts,

New Hampshire, and Maine

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Plumbing and HVAC Contractor

1-Year Parts and Labor Warranty

Mass Save Rebates

Manufacturer Warranties

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Experience Superior Plumbing, Heating and AC Services with Dan Dunn Plumbing & Heating

Dan Dunn Plumbing & Heating LLC, a family-owned business, has been providing exceptional plumbing and heating services in the New Hampshire Seacoast area since 2000. With over 30 years of experience in the industry, we are fully licensed and insured in Massachusetts, New Hampshire, and Maine. Our team is committed to delivering quality work, and our owner personally oversees all projects to ensure the highest standards are met. We offer a 1-year parts and labor warranty, and we honor manufacturer warranties. We also provide free same-day estimates when available.


As proud supporters of the Jimmy Fund Golf Tournament, we believe in giving back to our community. We work with insurance companies and offer Mass Save rebates, making our services affordable and accessible.


At Dan Dunn Plumbing & Heating, we are dedicated to providing you with reliable, efficient, and professional services. Request a call back today with our convenient online form.

Why Choose Dan Dunn Plumbing & Heating?

Choosing Dan Dunn Plumbing & Heating means choosing a company that values quality, reliability, and customer satisfaction. With over three decades of experience, our team of professionals is equipped to handle a wide range of plumbing and heating needs. We are fully licensed and insured, providing you with peace of mind.


We offer free same-day estimates and work with insurance companies to make our services as accessible as possible. With our 1-year parts and labor warranty, you can be confident in the durability of our work. Choose Dan Dunn Plumbing & Heating for superior service and expertise.

Mass Save Rebates

1-Year Parts and Labor Warranty

Fully Licensed and Insured

In Business Since 2000

Manufacturer Warranties

Works With Insurance Companies

Plumbing Services

At Dan Dunn Plumbing & Heating, we offer comprehensive plumbing services. Our experienced team can handle everything from minor repairs to major installations, ensuring your plumbing system is functioning optimally.

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Water Heaters

Dan Dunn Plumbing & Heating specializes in water heater installation, repair, and maintenance. Whether you need a traditional water heater or a tankless model, our team can install it efficiently and professionally, providing you with reliable hot water.

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Heat Pumps

At Dan Dunn Plumbing & Heating, our team is skilled in heat pump installation. Heat pumps are an energy-efficient solution for heating and cooling your home, and our team can ensure it is installed correctly for maximum efficiency.

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Tankless Water Heaters

We offer tankless water heater services. These systems provide hot water on demand, saving energy and reducing your utility bills. Our team can install and maintain these systems to ensure they operate efficiently.

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Water Softener Services

Our water softener services can help improve the quality of your water. Hard water can cause damage to your plumbing and appliances, but our water softener systems can help prevent this damage and extend the life of your appliances.

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Heating Services

Dan Dunn Plumbing & Heating offers a range of heating services to keep your home comfortable year-round. Whether you need furnace repair, boiler maintenance, or a new heat pump, our team can provide the services you need.

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Furnaces

We work with a variety of furnaces. We can install, repair, and maintain your furnace to ensure it is operating efficiently and keeping your home warm.

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Boilers

We offer boiler services to ensure your home is heated efficiently. Our team can install, repair, and maintain your boiler to ensure it is operating at peak efficiency.

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Radiant Heating

We offer radiant heating services that provide consistent, comfortable warmth throughout your home. Our team installs and maintains radiant heating systems.

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Here's what our satisfied customers are saying...

At Dan Dunn Plumbing & Heating, we take pride in providing exceptional plumbing, HVAC, and new construction services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us to improve and helps others make informed decisions. Please take a moment to leave a review of Dan Dunn Plumbing & Heating and let others know what you think.

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Dan Dunn Plumbing & Heating

Serving the New Hampshire Seacoast area, Dan Dunn Plumbing & Heating LLC specializes in plumbing, HVAC, and new construction services. 1-year parts and labor warranty. Mass Save rebates. Manufacturer warranties. Call today.

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