4.9 
13 *The Angi rating for Water Heater Service companies in Dover, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Dover, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on February 18, 2026
Serving Dover, DE and surrounding areas
Approved (Corporate)
In business since 2014
Emergency services offered
Warranties offered
"Excellent. Water heater failed on a Sunday and was replaced by noon on Monday. Tyler Miller did an excellent job!"
Serving Dover, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Emergency services offered
Warranties offered
"My hot water heater was replaced the same day. Old hot water heater was installed in 2000 so it didn't owe us anything. Done Right Today was courteous, professional, and offered a reasonable price. My wife and I were very pleased with their work. David and Jan Magaha"
+1
Serving Dover, DE and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"They demonstrated excellence in understanding the need, responsiveness, communicating every action to be taken ahead of time, calculating a fair estimate, explaining options for replacement, timeliness, and exceeding all expectations. Our technician, Zach Womer was outstanding in diagnosing the issues with my water heater, recommending replacements by listing the strengths and limitations of each choice, explaining the installation, confirming the availability of the replacement, estimating installation timing accurately, completing the job thoroughly and neatly, and most of all always staying in touch including after the services were provided. Poseidon and Zach are outstanding and deserving of customers' confidence."
+40
Serving Dover, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Emergency services offered
Warranties offered
"Delaware Plumbing Professionals were dependable, prompt, knowledgeable and offered a full service warranty for my new water heater. Michael, the serviceman, offered me options to choose before starting any work. They made me feel comfortable and confident in my decision to hire them."
+3
Serving Dover, DE and surrounding areas
Approved (Corporate)
In business since 2000
Emergency services offered
Credit card accepted
Service Today is a leading plumbing and drain company serving Maryland, Delaware, and Pennsylvania. Our certified professional plumbers are available same day to assist residential customers with their plumbing and drain needs. We have over 25 years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, as well as sewer, water, and gas lines. We make it right...right now!
Serving Dover, DE and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"This was as good an experience as one could want given a plumbing problem."
Serving Dover, DE and surrounding areas
Approved (Corporate)
"During this very cold winter, I wanted my HVAC system checked out, esp after the fan were frozen in place before being de-iced by me. The service person was great. He checked my system and was able to answer my questions. Thank you."
Serving Dover, DE and surrounding areas
Approved
In business since 1989
Emergency services offered
Warranties offered
Experience The Horizon Difference.\n\nOn-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED!\n\nHorizon Services is the region's largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.\n
Serving Dover, DE and surrounding areas
Free estimates
Emergency services offered
Credit card accepted
"I was nervous to check on water systems for our house and am happy I found Purfect Water Solutions. After checking through Angie's list I got an immediate response and scheduled a time to meet with Scott. He came in and tested the water, he educated us on where our water quality is now (not great) and even tested our bottled water we got from the store (which was also not great). Great financing program if you worried about $ and referral program. W/ what we pay for water this was a no brainer. John came by our house in days with the system and had it hooked up the same morning. He was very nice, punctual, respectful and knowledgeable with what he is doing. I don't usually write reviews... but we want safe water for our kids and family and Scott & John did such a great job I want to write a good review and share our experience. Water is so important everyday. Do yourself a favor and at least get your water tested so you know what your family is drinking/washing with."
+9
Serving Dover, DE and surrounding areas
In business since 2010
Free estimates
Offers commercial services
"Scottâ  s plumbing very professional answer all my questions Darrell showed up on time , did a great job Would definitely use them again I would definitely recommend them"
From average costs to expert advice, get all the answers you need to get your job done.
Looking to replace or upgrade your water heater? Use this water heater replacement cost guide to see what the work will cost and what factors affect your total.
A water heater flush costs $160 on average but can vary based on the unit size, type, labor, location, and more. Keep reading to learn how much you could pay.
Wondering how much a water heater expansion tank costs? Use this cost guide to get an accurate estimate and learn how to choose the right one for your home.
Done with cold showers and dish washing? Hire a water heater installation pro near you to get back to comfort and safety quickly.
Who can install a water heater for you? Look to hire a water heater installation pro or a licensed plumber for this job because of the challenges involved.
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.
