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Find Swimming pool heaters repair or service pros in Frederick

Avatar for System Pools, LLC

System Pools, LLC

4.94(
18
)
Approved Pro

System Pools, LLC

4.94(
18
)
Approved Pro
Super Service Award
Customers say: Terrific value
26 local quotes requested
7 years of experience

Full service and repair company that does pool maitenance, opening and closings as well as installations and pool renovations in the DMV area. We are on the market for the past 8 years with over 400 recurring clients and more than a 1500 serviced clients over the years. Our pricings and packages could be found on: www.systempools.net

"The team was great! They did everything quickly and professionally. Nick is an amazing guy! I'll recommend his team to everyone. They are great! Awesome job! Five stars! "

Kate S on February 2025

Full service and repair company that does pool maitenance, opening and closings as well as installations and pool renovations in the DMV area. We are on the market for the past 8 years with over 400 recurring clients and more than a 1500 serviced clients over the years. Our pricings and packages could be found on: www.systempools.net

"The team was great! They did everything quickly and professionally. Nick is an amazing guy! I'll recommend his team to everyone. They are great! Awesome job! Five stars! "

Kate S on February 2025


Avatar for Watermark Swimming Pool Services Inc

Watermark Swimming Pool Services Inc

4.89(
66
)
Approved Pro

Watermark Swimming Pool Services Inc

4.89(
66
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
26 local quotes requested

Watermark Swimming Pool Services, Inc. has over 40 years of professional swimming pool renovation, restoration, and repair experience. We serve residential and commercial pool customers throughout the Maryland, Washington DC, and Northern Virginia areas. We travel to your location to discuss your pool renovation and repair needs. We provide free estimates on all renovation work, including stone and brick coping, new glass and mosaic tiles, new pool interiors, adding a tanning shelf, leak detection, and much more. Let us take your pool into the 21st Century.

"Our pool is 35+ years old. Watermark Pool Services updated our pool with new tile, new coping and new plaster about 10 years ago. This year, we needed a few repairs, plus my husband always wanted sky blue plaster. This company's work crews are knowledgeable, efficient and courteous. I wouldn't want any other company but Watermark doing the work on my pool! We absolutely love our "new" pool and the blue plaster looks amazing!"

Jonathan B on July 2025

Watermark Swimming Pool Services, Inc. has over 40 years of professional swimming pool renovation, restoration, and repair experience. We serve residential and commercial pool customers throughout the Maryland, Washington DC, and Northern Virginia areas. We travel to your location to discuss your pool renovation and repair needs. We provide free estimates on all renovation work, including stone and brick coping, new glass and mosaic tiles, new pool interiors, adding a tanning shelf, leak detection, and much more. Let us take your pool into the 21st Century.

"Our pool is 35+ years old. Watermark Pool Services updated our pool with new tile, new coping and new plaster about 10 years ago. This year, we needed a few repairs, plus my husband always wanted sky blue plaster. This company's work crews are knowledgeable, efficient and courteous. I wouldn't want any other company but Watermark doing the work on my pool! We absolutely love our "new" pool and the blue plaster looks amazing!"

Jonathan B on July 2025


Long Fence

3.88(
226
)

Long Fence

3.88(
226
)
Customers say: Quality work
81 years of experience

500 employees. Cost is determined by the job. Travel charges may apply. Ask about Angie's List discount. Financing available. Additional locations - 2520 Urbana Pk, Ijamsville, Maryland 21754; 1910 Betson Ct, Odenton, MD 21113; 42521 John Mosby Hwy, Chantilly, Virginia 20152. Additional phone numbers - (301) 662-1600, (410) 793-0600 & (703) 471-0960. Additional fax numbers - (301) 874-5706, (301) 261-0643 & (703) 478-3545.

"Initial rep was great and informative. Felt comfortable with initial sale. Hardly had any contact from customer service except for the payments. There were several delays that we were not informed about unless we called to ask. Took 7 months before they showed up to begin project. Only 1 person was sent to build steps. Took a week. Hard worked, hardly took a break. Had to call again to see when they would come to pour patio. Never knew when they were coming, they just showed up. Hardly spoke with the homeowners. Inspection paperwork was just left on porch. Additional paperwork that is "required by the County" had to be completed by homeowner and taken to Court house to be notarized and filed and also provide a copy back to Long Fence. Time sensitive materials which added to homeowners to-do list. Gave this contract to LF on the surface of their history and appearance of a 'good local company' but should have stayed with original contactors in VA. Puddle of water forms when it rains"

Anissa B on February 2024

500 employees. Cost is determined by the job. Travel charges may apply. Ask about Angie's List discount. Financing available. Additional locations - 2520 Urbana Pk, Ijamsville, Maryland 21754; 1910 Betson Ct, Odenton, MD 21113; 42521 John Mosby Hwy, Chantilly, Virginia 20152. Additional phone numbers - (301) 662-1600, (410) 793-0600 & (703) 471-0960. Additional fax numbers - (301) 874-5706, (301) 261-0643 & (703) 478-3545.

"Initial rep was great and informative. Felt comfortable with initial sale. Hardly had any contact from customer service except for the payments. There were several delays that we were not informed about unless we called to ask. Took 7 months before they showed up to begin project. Only 1 person was sent to build steps. Took a week. Hard worked, hardly took a break. Had to call again to see when they would come to pour patio. Never knew when they were coming, they just showed up. Hardly spoke with the homeowners. Inspection paperwork was just left on porch. Additional paperwork that is "required by the County" had to be completed by homeowner and taken to Court house to be notarized and filed and also provide a copy back to Long Fence. Time sensitive materials which added to homeowners to-do list. Gave this contract to LF on the surface of their history and appearance of a 'good local company' but should have stayed with original contactors in VA. Puddle of water forms when it rains"

Anissa B on February 2024


4 County Roofing

5.00(
1
)

4 County Roofing

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family owned & operated.

Family owned & operated.


MLB Home Improvements

No reviews yet

MLB Home Improvements

No reviews yet
31 years of experience

Free estimates

Free estimates


Makeover Construction LLC.

No reviews yet

Makeover Construction LLC.

No reviews yet
18 years of experience

We are a one stop shop for all services, both residential & commercial. With over a decade of experience, we specialize in full renovations, roofing, framing, painting, flooring, drywall, siding, gutters, and maintenance & repair, etc. Licensed & Insured.

We are a one stop shop for all services, both residential & commercial. With over a decade of experience, we specialize in full renovations, roofing, framing, painting, flooring, drywall, siding, gutters, and maintenance & repair, etc. Licensed & Insured.


Avatar for American Custom Contractors Inc

American Custom Contractors Inc

4.85(
88
)

American Custom Contractors Inc

4.85(
88
)
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

American Custom Contractors is a full-service roofing, siding, and general contracting company committed to delivering high-quality home improvement services. With 52 years of experience, we specialize in both residential and commercial projects, ensuring durability and precision in every job. We pride ourselves on our customer-focused approach, providing tailored solutions and exceptional craftsmanship to meet the unique needs of each client.

"American Custom Contractors did an outstanding job replacing the roof, woodwork, trim, and gutters on our historic 1910 home. The ACC work crews, including carpenters, roofers, and gutter specialists, were highly skilled and experienced. Yanni Agouridis, our project consultant, was extremely helpful in working out the details of the engagement at the outset. Blase Skully, project supervisor and quality assurance manager, was always available to answer many questions and provide advice as we refined the scope of work and the project progressed. He made sure they delivered exactly what we were seeking to accomplish. Blase was also sensitive to ensuring that the historic look of the house was maintained and enhanced by the materials they used and the work they did. The result is beautiful. We get many complements on our new roof and gutters. We highly recommend American Custom Contractors."

Frank C on July 2024

American Custom Contractors is a full-service roofing, siding, and general contracting company committed to delivering high-quality home improvement services. With 52 years of experience, we specialize in both residential and commercial projects, ensuring durability and precision in every job. We pride ourselves on our customer-focused approach, providing tailored solutions and exceptional craftsmanship to meet the unique needs of each client.

"American Custom Contractors did an outstanding job replacing the roof, woodwork, trim, and gutters on our historic 1910 home. The ACC work crews, including carpenters, roofers, and gutter specialists, were highly skilled and experienced. Yanni Agouridis, our project consultant, was extremely helpful in working out the details of the engagement at the outset. Blase Skully, project supervisor and quality assurance manager, was always available to answer many questions and provide advice as we refined the scope of work and the project progressed. He made sure they delivered exactly what we were seeking to accomplish. Blase was also sensitive to ensuring that the historic look of the house was maintained and enhanced by the materials they used and the work they did. The result is beautiful. We get many complements on our new roof and gutters. We highly recommend American Custom Contractors."

Frank C on July 2024


Avatar for Envision Home Renovations

Envision Home Renovations

No reviews yet

Envision Home Renovations

No reviews yet
3 years of experience

We offer a wide range of home repair and renovation services, including Drywalling, Carpentry, flooring, and more. Whether you need a small repair or a major renovation, we have the skills and expertise to get the job done right

We offer a wide range of home repair and renovation services, including Drywalling, Carpentry, flooring, and more. Whether you need a small repair or a major renovation, we have the skills and expertise to get the job done right


Majestic Contracting LLC

No reviews yet

Majestic Contracting LLC

No reviews yet

Vienna Hot Tubs & Patio

4.48(
29
)

Vienna Hot Tubs & Patio

4.48(
29
)
Customers say: Quality work

See website for additional service area. Additional DBA - ViennaHotTubsandPatio.com

"DO NOT PURCHASE FROM HERE!!!! I don't even want to leave one star. This company was recommended to me from a neighbor however, I wish I would have read the reviews first. As everyone is saying they do a great job of selling you the tub, it's all downhill from there. After spending over $13k with this company, all I've received was a defective tub and a bad attitude from the owner, Charlie. I purchased my tub June 3, 2021 with the delivery time told to me of end of August - my tub didn't arrive until October. Once it did arrive it defective without the lights working and a leak inside the hot tub. This was my first service call. They came to "fix" the lights, but stated they had to be advised from Wellis on how to fix the leak. Months had gone by and they were still awaiting Wellis' response on how to fix the tub. They came back to fix the lights, but were not able to as it needed a new lightbox. After no response on these issues I let them know I want a new tub or a refund as I'm no longer comfortable with this tub being brand new and needing multiple repairs. Then they tell me the issues are an "easy fix" and give me a time and date they can come by conveniently. I'm uncomfortable with this as after the warranty is up these issues will all be out of pocket and I'm sure they will continue. The owner, Charlie gave me Wellis' phone number and Wellis' let me know it was up to the owner of Vienna Hot Tubs to replace. Continuous back and forth. I sent an email to the owner with my stance looking for a resolution on replacement or a refund prior to having my lawyer involved and he dismissively told me to just go ahead and get my lawyers involved instead of trying to find a solution to the issue for yet another unhappy customer. Horrible customer service and poor quality of products. This is not something I will be letting go so I hope they will either refund my funds and pick up the defective tub sooner than later because I will continue to escalate this and make sure people know not to purchase from this company."

Katrina T on March 2022

See website for additional service area. Additional DBA - ViennaHotTubsandPatio.com

"DO NOT PURCHASE FROM HERE!!!! I don't even want to leave one star. This company was recommended to me from a neighbor however, I wish I would have read the reviews first. As everyone is saying they do a great job of selling you the tub, it's all downhill from there. After spending over $13k with this company, all I've received was a defective tub and a bad attitude from the owner, Charlie. I purchased my tub June 3, 2021 with the delivery time told to me of end of August - my tub didn't arrive until October. Once it did arrive it defective without the lights working and a leak inside the hot tub. This was my first service call. They came to "fix" the lights, but stated they had to be advised from Wellis on how to fix the leak. Months had gone by and they were still awaiting Wellis' response on how to fix the tub. They came back to fix the lights, but were not able to as it needed a new lightbox. After no response on these issues I let them know I want a new tub or a refund as I'm no longer comfortable with this tub being brand new and needing multiple repairs. Then they tell me the issues are an "easy fix" and give me a time and date they can come by conveniently. I'm uncomfortable with this as after the warranty is up these issues will all be out of pocket and I'm sure they will continue. The owner, Charlie gave me Wellis' phone number and Wellis' let me know it was up to the owner of Vienna Hot Tubs to replace. Continuous back and forth. I sent an email to the owner with my stance looking for a resolution on replacement or a refund prior to having my lawyer involved and he dismissively told me to just go ahead and get my lawyers involved instead of trying to find a solution to the issue for yet another unhappy customer. Horrible customer service and poor quality of products. This is not something I will be letting go so I hope they will either refund my funds and pick up the defective tub sooner than later because I will continue to escalate this and make sure people know not to purchase from this company."

Katrina T on March 2022

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FAQs for swimming pool heaters repair or service projects in Frederick, MD

Replacing a pool heater costs $3,000 on average. Final pricing depends on the type of heater (gas, electric, or solar) and your pool's size. Factor for swimming pool repair costs, at an average of $3,800. When you start experiencing issues with your pool heater, other equipment and structural failures often follow. Installation is often the least expensive for electric and gas heaters. Heat pumps and solar panels often cost several thousand dollars more to install.

A pool heater’s lifespan is determined by its type and proper upkeep. Solar heaters last 20 to 25 years, electric heat pumps perform for five to 10 years, and gas heaters remain effective for 5 years. Regular pool maintenance safeguards performance and prevents premature failure. Ensuring that you adhere to a strict annual service schedule protects your investment and maintains consistent heating efficiency.

Depending on the size of your pool, location, climate, and current energy prices, you’ll spend up to $20 per hour to heat a pool using propane, $9 per hour using natural gas, and $1 to $2 per hour for a heat pump. Northern climates require more energy and can double the price. Standard estimates allow homeowners to easily estimate the cost of heating a pool for a month. Propane heaters, for example, are known to burn around 1 gallon per hour per 100,000 BTUs.

An electric or gas heat pump will take eight to 14 hours to heat a pool, while a solar heat pump takes 24 to 72 hours. Multiply the number of gallons by 8.34 to get your total pounds of water. Divide this figure by your heater's BTU rating to determine how many hours it takes to raise the water temperature by 1 degree Fahrenheit.

If your pool heater is not raising the water temperature to the desired level, the issue is caused by cold ambient conditions rather than a malfunction. The best solution is to install a solar cover that locks in heat and boosts efficiency. A solar cover costing $120 to $250 enhances heat retention, ensuring your heater performs at its peak. Additionally, verify that all settings—such as thermostat calibration and water circulation—are properly adjusted to support optimal heating.

Regular annual maintenance is crucial to keep your pool heater running efficiently and to avoid high repair costs. Investing $100 to $200 in yearly maintenance prevents issues such as excessive noise, surging energy bills, and malfunctioning controls. This proactive care not only prolongs your heater’s lifespan but also ensures reliable performance throughout the season. Always refer to your warranty guidelines to follow the required maintenance procedures.

The Frederick, MD homeowners’ guide to swimming pool heaters repairs or services

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

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