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Top-Rated Water heater pros in Dover - Updated Nov 2026

Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Dover, VT and surrounding areas

In business since 1971

Credit card accepted

"We pay yearly but we have this is included with our rental property. They are pretty good on most things. We had a hot water heater replaced and they did an excellent job on that. They are very quick on their response. They dont come out here. It is all done on the internet.  I just like the idea that one time service charge is so much better than trying to hiring someone to come in. It is more about convenience. It pays for itself."
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+2

Recommended by65%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Dover, VT and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"This is the second time I have used NE Renovations.    On a Saturday morning I discovered I had no heat, my heater would not come on.  I contacted the individual I had used in the past and was told they could not come out for a few days.  I sent an e-mail to Richard, the owner and he contacted me almost immediately.  He told me he could come out the same day to see what the problem was.

He showed up on Saturday on time as scheduled.  Unfortunately, the part I needed had to be ordered and he told me he would be over first thing Monday morning.  Sure enough he arrived at 8:00 am and his employee, Jimmy arrived shortly after.  It turned out additional parts had to be ordered.  Richard kept me informed of the progress all along.  After the parts were obtained, the heat was fixed and works great.

I also would like to mention how professional and courteous Richard always is.  And it is great to have someone so reliable to depend on.  I would not hesitate to use NE Renovations again. "
Before
After's
New boiler install
Removal of cast Iron to PVC.
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+37

Recommended by89%of homeowners
Avatar for 14th State Plumbing & Heating, LLC
14th State Plumbing & Heating, LLC
4.2(
5
)
Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Repair or Service

Serving Dover, VT and surrounding areas

In business since 2018

Credit card accepted

Offers commercial services

A team of great professionals no job is too big or too small. Did work for years as a foreman quality is at the forefront of our work. Also did work for years with a master plumber before going at it on my own. Working with our hands is what we love to do.A dedicated family man and business professional.

Recommended by75%of homeowners
RLC Renovation and Remodeling llc
5.0(
1
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Dover, VT and surrounding areas

In business since 2013

Free estimates

We offer wire replacement, pipe replacement, pressure tank maintenance, pump installment and replacement. We have been operated and ran by Owner Roger Campeau for 8 years now. We get the job done not only at an affordable cost but in a timely manor!

Recommended by100%of homeowners
Avatar for Southern Vermont Renovations and HVAC, LLC
Southern Vermont Renovations and HVAC, LLC
New to Angi
Water Heater - Install or Replace

Serving Dover, VT and surrounding areas

In business since 2023

Free estimates

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business

Water Heaters FAQs, answered by experts

While a water heater explosion is rare, it is a serious danger. Be aware of these critical warning signs:

  • Sulfur or Rotten Egg Smell: This is a major red flag, especially for gas water heaters. It can indicate a gas leak, which could ignite and cause an explosion.

  • Leaking Pressure Valve: If the temperature and pressure (T&P) relief valve is leaking, it may not be able to properly regulate internal pressure, creating a risk of bursting.

  • Shaking or Rumbling: Loud rumbling or shaking from the tank can be a sign of extreme pressure buildup.

  • Excessive Heat: If the exterior of the water heater feels unusually hot to the touch, the unit may be overheating dangerously.

  • Rust-Colored Water: This can be a symptom of severe internal corrosion that compromises the tank's integrity.

If you notice any of these signs, especially a gas smell, you must act immediately. Shut off the gas supply to the water heater and call a professional plumber right away to prevent a potential disaster.

Yes, you can replace a current tank water heater with a tankless model or vice versa. If you’re maintaining the same fuel source—gas or electricity—the switchover should be smooth. A conventional tank requires open floor space, while a tankless model can be wall-mounted. If you’re switching to a tank water heater, you might need to clear space for it. Gas-powered tankless water heaters need a large volume of gas when they start running to heat the water instantly. You might need to increase the size of the gas line when going from a tank to a tankless model.

Signs your electric water heater is failing include inconsistent water temperature, reduced hot water supply, longer heating times, or discolored water (rusty or cloudy). Unusual noises like popping or rumbling suggest sediment buildup, while leaks or corrosion around the tank signal structural damage. If your unit is over 10 to 15 years old and experiencing frequent issues, it may be time to replace it.

Gas water heaters last between eight and 12 years on average. You can help them reach their maximum lifespan with regular cleanings, maintenance, and professional checkups, though don’t hesitate to swing for a full replacement if the total cost of repairs is greater than that of purchasing and installing a new unit. 

The size needed for your expansion tank is determined by the size of your home's water heater. Expansion tanks are available in 2-gallon and 4.5-gallon sizes. A 2-gallon tank will be appropriate for water heaters up to 50 gallons. An adequately sized tank should have a volume that equals 2% to 5% of the water volume within the system. A plumber can evaluate your home's water pressure, water heater size, and other factors to provide suggestions for picking out the best expansion tank.

The Dover, VT homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.