Donovan Plumbing & Heating
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Over 30 Years experience, product knowledge and skill is provided on every job we do. Whether it's just repairing a leaky pipe, a replacement faucet or installing a complete heating system Our dedication to customer satisfaction is unsurpassed. We give personal and quality attention to every detail. We truly appreciate your business and look forward to serving you today, tomorrow, and beyond!

We serve developers, home contractors and many local businesses. We provide quality and timely installations to meet all of your heating and plumbing needs. Not part of a national chain, or a regional company, we are a local company, serving the Merrimack Valley and Rockingham County. No one knows local plumbing better! My parents had an issue with their toilet and it could not be used.

John went to their condo and fixed the problem. He was professional, did the job correctly, and made great recommendations for improvements. His pricing was very fair. Cannot say enough good things about our experience with John.
Services
Over 30 Years' experience, product knowledge and skill is provided on every job we do.
Whether it's repairing a leaky pipe, a replacement faucet or installing a radient floor heating or snowmelt system, our dedication to our residential and commercial customer satisfaction is unmatched!
Residential Professionals - We have been in business for 30 Years.
We don't sub out jobs, large or small.
We give personal and quality attention to every detail.
We truly appreciate your business and look forward to serving you today, tomorrow and appreciate referrals.
We install quality energy efficient gas & oil products by Burnham, Utica, Weil-McLain, RUUD and other brands.
Hot Water Systems - Burns oil, natural gas (NG) or liquefied petroleum gas (LP) to heat up water.
The water can be used for home heating and bathing.
Boilers for home heating are usually set up with a furnace to heat the water and a hot water storage tank to hold hot water that will be used at a later time.
Hot water for heat will be used right away and doesn't need to be stored.
Very little electricity is needed to run a water boiler system when it's being used for home heating.
Experience Matters -There are many types of gas piping, we have the knowledge and experience to size, select proper type and correctly and safely install your gas piping.
This is not something that can be done by a DIY (Do It Yourself), NG and LP are flammable fuels that are pressurized.
The proper connections to service source, joints and device are very important and require a knowledgeable certified licensed installer.
Improperly installed gas piping can put you, your family and neighbors lives in danger of fires and explosions.
Provides peace of mind during a power outage and automatically protecting what matters most to you and your family.
Connection - We can connect a backup generator to your fuel supply, natural gas (NG) or liquefied petroleum gas (LP).
Convenience - Backup generators can start immediately either by a push of a button or automatically.
In addition to the convenience of an auto starting option and practically infinite run time, permanently connected standby systems offer power levels higher than portables.
Stylish, Slim and Elegant - These cooling units have a clean, aesthetic design helping them blend into any room.
The flexibility of the variable speed compressor helps systems adapt to shifts in heat load.
Inverter Technology - Through new, advanced technology, Inverter air conditioners are more economical to operate and quieter to run than conventional units.
They can handle greater extremes in temperature, are smoother and more stable in operation, and reach the desired temperature more quickly than conventional air conditioners.
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