Get matched with top water heater pros in Gaithersburg, MD
There are 67 highly-rated local water heater pros.
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4.6 
210 Verified Reviews for Water Heater Service pros in Gaithersburg, MD
*The Angi rating for Water Heater Service companies in Gaithersburg, MD 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 Gaithersburg, MD 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 July 19, 2025
Water heater pros in Gaithersburg
During the COVID-19 outbreak, we are considered an essential service and are taking extra precautions with your health and safety in mind. Please call us today for more details. We would love to speak with you about home projects and scheduling options. **Call us today for a FREE ESTIMATE!** With over 25 years of combined experience, we're confident you'll be happy with the customer service we offer and the overall craftsmanship of our work. We provide cleanup/drying services for your smoke, water, and mold emergencies. Contact 24/7. We can work directly with your insurance company in order to expedite and simplify the claim process. Call us today, and you'll be glad you did!
"This business is excellent. Fixed our leak quickly and well."
Marina B on November 2022
During the COVID-19 outbreak, we are considered an essential service and are taking extra precautions with your health and safety in mind. Please call us today for more details. We would love to speak with you about home projects and scheduling options. **Call us today for a FREE ESTIMATE!** With over 25 years of combined experience, we're confident you'll be happy with the customer service we offer and the overall craftsmanship of our work. We provide cleanup/drying services for your smoke, water, and mold emergencies. Contact 24/7. We can work directly with your insurance company in order to expedite and simplify the claim process. Call us today, and you'll be glad you did!
"This business is excellent. Fixed our leak quickly and well."
Marina B on November 2022
Heating and cooling contractors for an honest service industry. We provide residential heating and cooling services to South Central Pennsylvania and the Eastern Panhandle of West Virginia. So whether you're in need of a furnace or air conditioner cleaning, repair, or a system replacement, we've got you covered from beginning to end.
Heating and cooling contractors for an honest service industry. We provide residential heating and cooling services to South Central Pennsylvania and the Eastern Panhandle of West Virginia. So whether you're in need of a furnace or air conditioner cleaning, repair, or a system replacement, we've got you covered from beginning to end.
Smith & Company HVAC is a 5 star business located in Pasadena, MD. We offer affordable service rates, 24 hour service and routine maintenance packages. Smith & Company HVAC has professionally trained technicians to take care of your service needs, as well as friendly, efficient office staff to help things move smoothly. We offer non comparable rates as well for our installations. Feel free to check out our raving reviews on BBB, Google and Yelp. You can also find a 5 star review on Facebook. Additional information can be found on our website. Call us today and ask about our service special for new clients!
"Great! Have used these guys on several projects and am currently using them."
Shari D on December 2019
Smith & Company HVAC is a 5 star business located in Pasadena, MD. We offer affordable service rates, 24 hour service and routine maintenance packages. Smith & Company HVAC has professionally trained technicians to take care of your service needs, as well as friendly, efficient office staff to help things move smoothly. We offer non comparable rates as well for our installations. Feel free to check out our raving reviews on BBB, Google and Yelp. You can also find a 5 star review on Facebook. Additional information can be found on our website. Call us today and ask about our service special for new clients!
"Great! Have used these guys on several projects and am currently using them."
Shari D on December 2019
CALL US TODAY FOR A FREE ESTIMATE!!
"Excellent. Reasonable price, discount price second time. Professional, clean. Flawless installation and worked fast. They maintained good safety practices and wore ppe."
Michael R on September 2020
CALL US TODAY FOR A FREE ESTIMATE!!
"Excellent. Reasonable price, discount price second time. Professional, clean. Flawless installation and worked fast. They maintained good safety practices and wore ppe."
Michael R on September 2020
Finding the right plumbing company can be a struggle sometimes. Suma Plumbing and Drain Cleaning offers quick, reliable service you can trust. We are dedicated to helping you when you need it the most and we leave all of our jobs tidy and clean.
"Very professional and reliable. I had a complicated sump pump issue and he really took his time to get it right which I really appreciate. I'll be calling him the next time I have any plumbing issues in my house."
Morgan M on September 2024
Finding the right plumbing company can be a struggle sometimes. Suma Plumbing and Drain Cleaning offers quick, reliable service you can trust. We are dedicated to helping you when you need it the most and we leave all of our jobs tidy and clean.
"Very professional and reliable. I had a complicated sump pump issue and he really took his time to get it right which I really appreciate. I'll be calling him the next time I have any plumbing issues in my house."
Morgan M on September 2024
My name is Carlos and I have 15 years experience in the heating and air conditioning industry. I specialize in the installation of Heating/AC equipment, servicing/ repairing the system and installing/ repairing hot water heater. My business is owner-operated and I will complete these services to your satisfaction Guaranteed. We offer competitive pricing, specials, and warranties. We will respond to your needs as quickly as possible.
"I contacted Calos about my AC not cooling, told him someone already diagnosed the issue but did not have the part !! He told me to send pictures of the unit which I did , He requested an emergency fee which I agreed , but when he arrived he said he will not go by what the other person said !! He changed me 600 dollars for the job .. I said ok .. but while fixing AC the fuss on the out blew!! And I saw the wires sparking !! It was a guess work and how to make more money situation!! He escalated every situation !! 45 minutes later he said he was done, the lady assisting him said some in Spanish.. something went wrong. He reluctantly went back to the AC !! Them he said you need to pay three hundred dollars more because I need to replace a canister!!! I said this is out of my plan ,, did you think you fixed the wrong thing in the beginning? He was mad , don’t tell me what to do .. i was desperate to get some comfort so i agreed!! But I knew I have fallen into the wrong hands !!! 15mins later he was done, she said it will take 3hours to cool down!! He was so rude and intimidating! Flew days later the air conditioning was not cooling as usual and finally stop working.. I called him back but he requested another emergency fee to come or it will take him four days for a re visit!! Still very rude on the phone!! At that point I was done !! Don’t want to ever deal with such an aggressive behavior. I called another service recommended by a friend and gat the mess taken care .of , Carlos apparently made a bigger mess with his guess work !! I called Carlos back for some refund but it did not go well as expected!! Worse services ever !! I will not recommend!!!!"
Helen D on September 2023
My name is Carlos and I have 15 years experience in the heating and air conditioning industry. I specialize in the installation of Heating/AC equipment, servicing/ repairing the system and installing/ repairing hot water heater. My business is owner-operated and I will complete these services to your satisfaction Guaranteed. We offer competitive pricing, specials, and warranties. We will respond to your needs as quickly as possible.
"I contacted Calos about my AC not cooling, told him someone already diagnosed the issue but did not have the part !! He told me to send pictures of the unit which I did , He requested an emergency fee which I agreed , but when he arrived he said he will not go by what the other person said !! He changed me 600 dollars for the job .. I said ok .. but while fixing AC the fuss on the out blew!! And I saw the wires sparking !! It was a guess work and how to make more money situation!! He escalated every situation !! 45 minutes later he said he was done, the lady assisting him said some in Spanish.. something went wrong. He reluctantly went back to the AC !! Them he said you need to pay three hundred dollars more because I need to replace a canister!!! I said this is out of my plan ,, did you think you fixed the wrong thing in the beginning? He was mad , don’t tell me what to do .. i was desperate to get some comfort so i agreed!! But I knew I have fallen into the wrong hands !!! 15mins later he was done, she said it will take 3hours to cool down!! He was so rude and intimidating! Flew days later the air conditioning was not cooling as usual and finally stop working.. I called him back but he requested another emergency fee to come or it will take him four days for a re visit!! Still very rude on the phone!! At that point I was done !! Don’t want to ever deal with such an aggressive behavior. I called another service recommended by a friend and gat the mess taken care .of , Carlos apparently made a bigger mess with his guess work !! I called Carlos back for some refund but it did not go well as expected!! Worse services ever !! I will not recommend!!!!"
Helen D on September 2023
Sky Plumbing offers a full range of top quality plumbing services to meet all of your household and business needs. We will send a fully trained technician to your home with a truck stocked with 1000's of parts. This means that most repairs can be done right then and there, saving you time and money. Our technicians are prepared to handle any plumbing problem.
"Judah worked with me to make a schedule change to send someone out the same day I called about a slow-running toilet. He said they'd need to snake the line and quote a price, telling me it would probably take an hour. Not a dire emergency, but Benny was there on time, snaked the line and took care of it within an hour for about the price I expected (under $300)."
Frank J on December 2023
Sky Plumbing offers a full range of top quality plumbing services to meet all of your household and business needs. We will send a fully trained technician to your home with a truck stocked with 1000's of parts. This means that most repairs can be done right then and there, saving you time and money. Our technicians are prepared to handle any plumbing problem.
"Judah worked with me to make a schedule change to send someone out the same day I called about a slow-running toilet. He said they'd need to snake the line and quote a price, telling me it would probably take an hour. Not a dire emergency, but Benny was there on time, snaked the line and took care of it within an hour for about the price I expected (under $300)."
Frank J on December 2023
Plumbing and Heating company that works on water treatment systems and water heaters. No job to big or small
"Great company. Robert was communicative and responsive, he did the work as promised in a timely manner and for BY FAR the best price!"
Elizabeth E on December 2019
Plumbing and Heating company that works on water treatment systems and water heaters. No job to big or small
"Great company. Robert was communicative and responsive, he did the work as promised in a timely manner and for BY FAR the best price!"
Elizabeth E on December 2019
Drew's Drain Service specializes in Pipe lining, and Sewer and Drain Cleaning Services. Our team delivers efficient, high quality, and timely services.Our prices are the best in town!!
"It went very well. Very professional. In & out in 30min.& he cleaned up after himself. Will definitely use him again & refer him to others. Great plumber!!"
Mary P on September 2021
Drew's Drain Service specializes in Pipe lining, and Sewer and Drain Cleaning Services. Our team delivers efficient, high quality, and timely services.Our prices are the best in town!!
"It went very well. Very professional. In & out in 30min.& he cleaned up after himself. Will definitely use him again & refer him to others. Great plumber!!"
Mary P on September 2021
R&R Hvac Solutions is a full service Heating and Cooling company serving Maryland, DC, And Northern Virginia. We offer quality products, great customer service and competitive rates!
"Excellent service. Very fast response time. Professional technician. I would definitely use them again."
Tammy O on December 2018
R&R Hvac Solutions is a full service Heating and Cooling company serving Maryland, DC, And Northern Virginia. We offer quality products, great customer service and competitive rates!
"Excellent service. Very fast response time. Professional technician. I would definitely use them again."
Tammy O on December 2018
FAQs for water heater service projects in Gaithersburg, MD
The average cost to install a new water heater is around $1,300, but you can expect to pay between $875 and $1,750, depending on the kind of water heater, the size of the unit, and the professional chosen to complete the work. Tankless water heaters can push your price higher, as installation is more complicated, with prices as high as $3,500. The location and accessibility of your water heater will play a role in the project cost, as those sitting in tight spaces like a crawl space will drive up your labor costs.
Tankless water heaters are more expensive than those with a storage tank, but they come with some impressive benefits that most homeowners find worth the higher investment. Most importantly, they provide unlimited hot water, so you’ll never run out like you would with a storage tank. Tankless heaters are also more efficient, so comparing gallon-for-gallon, you’ll spend less on hot water with a tankless heater. Tankless water heaters are also smaller, require less maintenance, and tend to last longer than storage tank water heaters.
It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.
It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.
In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.
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