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TRUSTED BY WINDSOR, VA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon40
    Verified water heater services reviews

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

Avatar for Suffolk Water Heater Service, LLC
Suffolk Water Heater Service, LLC
5.0(
5
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Windsor, VA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Outstanding and affordable service with a smile! Greg replaced our old and rusty water heater. Its very stressful when out of hot water. Greg took all the stress away. He also took very good care protecting our floors and carpets. He used drop cloths and boot covers leaving no trace of dirt or rust from the old water heater behind."
Avatar for Lighthouse Mechanical Heating & Cooling
Lighthouse Mechanical Heating & Cooling
4.9(
40
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Windsor, VA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"From the first meeting with Matt when he gave us a timeline and our estimate, through the install and the walk through of finished work, it was all very well done. The installers were very polite and made sure that any flooring that they would be walking on or bringing out the old water heater on were completely covered to protect from any dirt or water. Any time we went to see if they needed anything they would tell us what they had gotten done and what they were working on. Not once were they short or put out as some people are when you are curious about what is going on in your house. I would use Lighthouse any time and have already told our friends how professional and caring they were about everything that went into our home and the proper working of it all before they left. They also did not take the last half of our payment until the final walk through which was 5 days after all work was completed. They also do military discounts and cash/check discounts which is a lovely perk."
20i
95 Furnance
Parade of Homes
Recommended by97%of homeowners
Avatar for Cassidy's Plumbing Co. Inc.
Cassidy's Plumbing Co. Inc.
3.9(
310
)
Tankless Water Heater - InstallWater Heater - Install or Replace

Serving Windsor, VA and surrounding areas

In business since 1993

Free estimates

Credit card accepted

"Cassidy's Plumbing was very responsive and eager to get our home back online with water, they reworked their schedule so that from talking on the phone to water heater installed and running in 2.5 hrs. The price was competitive and the workmanship was excellent. Would definitely recommend."
GREASE TRAP CLEANING
PUMP OUTS
SEPTIC PUMP TRUCK
PUMP TRUCK
VANS

+2

Response time1 day
Recommended by94%of homeowners
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Water Heaters FAQs, answered by experts

While not all homes require a hot water heater expansion tank, they are necessary in most newer homes and are often mandated by local building codes. Codes typically require an expansion tank if your plumbing system is a 'closed-loop' system, which often includes a backflow preventer or pressure regulator on the main water line. Some municipalities have specific requirements. Installing an expansion tank on a closed system is crucial, as it prevents excess pressure that can damage your water heater and other appliances, potentially shortening their lifespan. However, tankless water heaters do not require an expansion tank.

Most standard residential water heaters, which are typically around 40 gallons and use 240 volts and between 3,500 and 5,500 watts, require a 30-amp, two-pole circuit breaker. For smaller, point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts, a 30-amp breaker is also often adequate. However, some models may have different needs; units that use more watts than average may require a 40-amp breaker, while smaller units might only need a 20-amp breaker. Newer, tankless, or more energy-efficient models can also require a higher amperage. Having the correct breaker size is crucial for safe and efficient operation, so it's best to consult a licensed electrician to determine the specific needs of your water heater.

On average, a tankless water heater should last between 10 and 15 years. Its lifespan will be affected by how much it's used, the effect of weather where your home is on the unit—colder is harsher and will shorten lifespan—and if the heater is maintained appropriately and regularly. There are many signs your water heater needs to be replaced, so pay attention to anything that changes with your heater or hot water.

Excessive pressure (above 80 psi) puts too much stress on plumbing pipes, joints, and fixtures. This can lead to leaks and burst pipes. Plus, it shortens the lifespan of appliances, can waste water, and can raise your utility bills. High water pressure might feel like a gift, but it’s actually a silent threat to plumbing.

A well-maintained hot water recirculating pump can last 5 to 15 years. Pumps that run continuously may have a shorter lifespan than demand-controlled models. Hard water can reduce longevity by causing mineral buildup in the pump and pipes. Regular maintenance, such as cleaning or replacing filters, can extend the pump’s lifespan.

The Windsor, VA homeowners’ guide to water heater services

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