Top-rated water heater pros.

Get matched with top water heater pros in Dover, DE

There are 8 highly-rated local water heater pros.

TRUSTED BY DOVER, DE HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon19
    Verified water heater services reviews

Find Water heater pros in Dover

Avatar for Delaware Plumbing Professionals

Delaware Plumbing Professionals

300 E AYRE ST
4.66(
180
)
Approved Pro

Delaware Plumbing Professionals

300 E AYRE ST
4.66(
180
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
377 local quotes requested

We take great pride in being family owned and operated. Our mission is to provide our customers with exceptional service while delivering top-notch quality. Our reputation is based on the service and quality we provide, as well as the safety of our customers and their homes. We strive for transparency throughout your entire experience with our company and as well, promise to be upfront and honest. We treat your home like our home. Call us today for Better Service, Better Price, Better Value!

"They did a great job, although a little expense despite the fact that I had already bought the new faucet."

Lisa Z on April 2025

We take great pride in being family owned and operated. Our mission is to provide our customers with exceptional service while delivering top-notch quality. Our reputation is based on the service and quality we provide, as well as the safety of our customers and their homes. We strive for transparency throughout your entire experience with our company and as well, promise to be upfront and honest. We treat your home like our home. Call us today for Better Service, Better Price, Better Value!

"They did a great job, although a little expense despite the fact that I had already bought the new faucet."

Lisa Z on April 2025


"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."

Jacqueline G on July 2024

When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."

Jacqueline G on July 2024


Avatar for Mr. Rooter Plumbing

Mr. Rooter Plumbing

250 Corporate Blvd
4.56(
9
)
Approved Pro

Mr. Rooter Plumbing

250 Corporate Blvd
4.56(
9
)
Approved Pro
Customers say: Quick response
21 local quotes requested
8 years of experience

Wilmington, Newark, Middletown and Dover DE and Cecil County, MD areas Plumbing & Drain Cleaning Services. Professional, Friendly, & Knowledgeable Plumbers. Your plumbing system is one of the most important components of a properly functioning home or business. When your plumbing system is facing issues, who do you call? Whether you’re dealing with a toilet that won’t stop running or a faucet that won’t stop leaking, it’s important to turn to true plumbing professionals to ensure you’re getting the best service available. At Mr. Rooter® Plumbing, we offer honest and reliable plumbing repairs and services to the locals of Wilmington, Newark, Middletown and Dover DE and Cecil County, MD the surrounding areas.

"Over estimate, wanted to replace entire fixture, wall and faucet for 1500 dollar fee, all that was needed was the ball valve replacement that ended up costing a total of 50 dollars that a friend knew how to do."

Steve B on June 2025

Wilmington, Newark, Middletown and Dover DE and Cecil County, MD areas Plumbing & Drain Cleaning Services. Professional, Friendly, & Knowledgeable Plumbers. Your plumbing system is one of the most important components of a properly functioning home or business. When your plumbing system is facing issues, who do you call? Whether you’re dealing with a toilet that won’t stop running or a faucet that won’t stop leaking, it’s important to turn to true plumbing professionals to ensure you’re getting the best service available. At Mr. Rooter® Plumbing, we offer honest and reliable plumbing repairs and services to the locals of Wilmington, Newark, Middletown and Dover DE and Cecil County, MD the surrounding areas.

"Over estimate, wanted to replace entire fixture, wall and faucet for 1500 dollar fee, all that was needed was the ball valve replacement that ended up costing a total of 50 dollars that a friend knew how to do."

Steve B on June 2025


Level Up Plumbing

13 Paxton Lane
New on AngiNew on Angi
Approved Pro

Level Up Plumbing

13 Paxton Lane
New on AngiNew on Angi
Approved Pro
2 years of experience
Free onsite estimate

Level Up Plumbing is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! is 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.

Level Up Plumbing is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! is 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.


Avatar for West Shore Home Salisbury

West Shore Home Salisbury

31440 Winterplace Parkway
4.91(
231
)
Approved Pro

West Shore Home Salisbury

31440 Winterplace Parkway
4.91(
231
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
151 local quotes requested

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"They were very good "

Deral L on December 2024

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"They were very good "

Deral L on December 2024


Premier Home Pros, LLC

10621 Iron Bridge Rd, Ste I
3.99(
76
)
Approved Pro

Premier Home Pros, LLC

10621 Iron Bridge Rd, Ste I
3.99(
76
)
Approved Pro
Customers say: Quality work
3 years of experience
Free onsite estimate

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"Did a good job very professional "

David C on July 2025

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"Did a good job very professional "

David C on July 2025


Avatar for D & C Bath, LLC

D & C Bath, LLC

600 N Broad St, Suite 4
4.66(
22
)
Approved Pro

D & C Bath, LLC

600 N Broad St, Suite 4
4.66(
22
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
45 local quotes requested

At D & C Bath LLC dba Luxury Bath of Delaware, we deliver quality- from the extreme durability of your products to our no-hassle installations. Whether you choose a seamless shower system or an accessible bath option, you can feel confident knowing that we offer benefits that include: Micro-ban Technology for Resistance to Mold, Mildew and Grime Custom Design and Style Options to Fit your unique Aesthetic Quick, In as little as One-Day Installations by Luxury Bath- Trained Pros Life Warranties and Competitive Financing Options. Get Started with a Free Quote for your Bath Remodel!!

"Good"

Sunil B on September 2024

At D & C Bath LLC dba Luxury Bath of Delaware, we deliver quality- from the extreme durability of your products to our no-hassle installations. Whether you choose a seamless shower system or an accessible bath option, you can feel confident knowing that we offer benefits that include: Micro-ban Technology for Resistance to Mold, Mildew and Grime Custom Design and Style Options to Fit your unique Aesthetic Quick, In as little as One-Day Installations by Luxury Bath- Trained Pros Life Warranties and Competitive Financing Options. Get Started with a Free Quote for your Bath Remodel!!

"Good"

Sunil B on September 2024


Avatar for Desmond Heating & Cooling Solutions

Desmond Heating & Cooling Solutions

25 Printz Dr
4.70(
61
)
Approved Pro

Desmond Heating & Cooling Solutions

25 Printz Dr
4.70(
61
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
74 local quotes requested

At Desmond Heating & Cooling Solutions, your priority is our priority, tackling detailed projects with simple solutions. Our team sets the standards of seamless customer service, client experience, streamlined and personalized projects based on the clients wants, needs, and dreams. We are licensed, bonded, and insured. We warranty all of our parts and labor. We specialize in: Heating Cooling Duct/Vent Cleaning Light Plumbing We have partnered with the best vendors the market has to offer to guarantee that our brand, products, and services we offer are of the highest caliber.

"No wait. Great work"

Rob M on October 2024

At Desmond Heating & Cooling Solutions, your priority is our priority, tackling detailed projects with simple solutions. Our team sets the standards of seamless customer service, client experience, streamlined and personalized projects based on the clients wants, needs, and dreams. We are licensed, bonded, and insured. We warranty all of our parts and labor. We specialize in: Heating Cooling Duct/Vent Cleaning Light Plumbing We have partnered with the best vendors the market has to offer to guarantee that our brand, products, and services we offer are of the highest caliber.

"No wait. Great work"

Rob M on October 2024


Avatar for Premier Home Pros, LLC

Premier Home Pros, LLC

10621 Iron Bridge Rd Suite I
4.09(
80
)
Approved Pro

Premier Home Pros, LLC

10621 Iron Bridge Rd Suite I
4.09(
80
)
Approved Pro
Customers say: Quality work
208 local quotes requested
3 years of experience

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"Did a good job very professional "

David C on July 2025

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"Did a good job very professional "

David C on July 2025


Avatar for Coastal Bay Construction, Inc.

Coastal Bay Construction, Inc.

504 N Bi-State Blvd.
4.89(
50
)
Approved Pro

Coastal Bay Construction, Inc.

504 N Bi-State Blvd.
4.89(
50
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
44 local quotes requested

Coastal Bay Construction, Inc. , is 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.

"Dustin did both of my bathrooms in my Rehoboth Beach condo - completely gutted and redone top to bottom. Dustin worked with me to customize virtually all of the elements. Price was fair; top quality work; always responsive. Easily the best contractor I’ve ever worked with. I’m just sad I have no more bathrooms to renovate."

Debbie R on February 2025

Coastal Bay Construction, Inc. , is 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.

"Dustin did both of my bathrooms in my Rehoboth Beach condo - completely gutted and redone top to bottom. Dustin worked with me to customize virtually all of the elements. Price was fair; top quality work; always responsive. Easily the best contractor I’ve ever worked with. I’m just sad I have no more bathrooms to renovate."

Debbie R on February 2025

...
Showing 1-10 of 78
Water Heaters questions, answered by experts

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.

A leaking water heater could potentially last for a few weeks or months before you need to repair it. However, it's not advisable to wait too long. Once your water heater starts leaking, it's likely that the underlying cause of the leak is getting worse as time goes on. Without immediate repair, your water heater could fail. Instead of using a leaky water heater, you should turn it off and call a pro to fix it.

You should replace your gas water heater when it’s reached the end of its lifespan, which is a maximum of 12 years in most cases. If your unit is over a decade old and showing signs of inefficiency, leaks, or frequent malfunctions, it may be time to replace your water heater. Research how to best maintain your gas water heater to help extend its lifespan.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

The Dover, DE homeowners’ guide to water heater services

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"