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Swimming pool heaters installers and replacers in Rockville

Avatar for Millennium Pools and Spas, LLC
Millennium Pools and Spas, LLC
5558 Port Royal Rd
4.68(
76
)
Approved Pro
Millennium Pools and Spas, LLC
5558 Port Royal Rd
4.68(
76
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
245 local quotes requested

Need a little, or a lot of, help with your pool, spa, or fountain? If so, Millennium Pools and Spas is just the company you are looking for! Millennium Pools is an industry leader in Maintenance, Service, and Renovation of pools, spas, and fountains. Do you need an opening and want someone else to clean and maintain your swimming pool? We can do that too! Sit back and relax by your pool all summer long and let us do the work so you don't have to! Millennium Pools and Spas, LLC, has been in business since 2006, but has over 30 years of pool and spa experience. We specialize in major renovation, technical problems, leak repair and offer weekly visits and maintenance package options to make sure everything is up to par! Call Millennium Pool and Spas, LLC, today and enjoy your summer! Serving Northern Virginia, Washington DC and Maryland

"I just had my pool resurfaced by Millennium Pools with Pebblestone. Yan Larenas ((Project Manager) and Elmer Lopez (Superintendent) have been outstanding. They are both very nice, patient (especially since I?m a worrywart), knowledgeable, communicative, organized, and conscientious. At least one of them was here each day of the project to ensure that I was pleased and to personally take care of any items that may have been overlooked by the crews. They are rare individuals who care about their customers and have pride in the work done. I was informed every step of the way and there were no surprises. I have a gorgeous pool now and it went so smoothly, without stress due to Yan and Elmer. I can?t overemphasize how impressed I am with them and how happy I am with my new pool. Thank you so so so much! Norbert Juelich"

Norbert J on April 2025

Need a little, or a lot of, help with your pool, spa, or fountain? If so, Millennium Pools and Spas is just the company you are looking for! Millennium Pools is an industry leader in Maintenance, Service, and Renovation of pools, spas, and fountains. Do you need an opening and want someone else to clean and maintain your swimming pool? We can do that too! Sit back and relax by your pool all summer long and let us do the work so you don't have to! Millennium Pools and Spas, LLC, has been in business since 2006, but has over 30 years of pool and spa experience. We specialize in major renovation, technical problems, leak repair and offer weekly visits and maintenance package options to make sure everything is up to par! Call Millennium Pool and Spas, LLC, today and enjoy your summer! Serving Northern Virginia, Washington DC and Maryland

"I just had my pool resurfaced by Millennium Pools with Pebblestone. Yan Larenas ((Project Manager) and Elmer Lopez (Superintendent) have been outstanding. They are both very nice, patient (especially since I?m a worrywart), knowledgeable, communicative, organized, and conscientious. At least one of them was here each day of the project to ensure that I was pleased and to personally take care of any items that may have been overlooked by the crews. They are rare individuals who care about their customers and have pride in the work done. I was informed every step of the way and there were no surprises. I have a gorgeous pool now and it went so smoothly, without stress due to Yan and Elmer. I can?t overemphasize how impressed I am with them and how happy I am with my new pool. Thank you so so so much! Norbert Juelich"

Norbert J on April 2025


Avatar for Lifeline Pool and Spa, LLC
Lifeline Pool and Spa, LLC
23615 Neck Rd
5.00(
2
)
Approved Pro
Lifeline Pool and Spa, LLC
23615 Neck Rd
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 local quotes requested

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Lifeline Pool and Spa LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"They are highly dependable and efficient."

anthony p on October 2024

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Lifeline Pool and Spa LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"They are highly dependable and efficient."

anthony p on October 2024


Avatar for Viga Pool Services LLC
Viga Pool Services LLC
12770 Forest Park Dr
5.00(
5
)
Approved Pro
Viga Pool Services LLC
12770 Forest Park Dr
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
49 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. checks, zelle, online link

"Viga Pool Services has done the opening and closing of my pool as well as a pipe leak repair. I also know another client they did some major work for and their pool is now gorgeous."

Dorothy F on January 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. checks, zelle, online link

"Viga Pool Services has done the opening and closing of my pool as well as a pipe leak repair. I also know another client they did some major work for and their pool is now gorgeous."

Dorothy F on January 2024


Avatar for Washingtonian Companies
Washingtonian Companies
8645 Ziggy Lane
5.00(
4
)
Approved Pro
Washingtonian Companies
8645 Ziggy Lane
5.00(
4
)
Approved Pro
Super Service Award
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1551 local quotes requested

Transform your space with Washingtonian Companies, your interior/exterior design-build team. Whether it's roofing, windows, siding, decks, kitchens, bathrooms, or additions, we are your trusted partner to bring your vision to life and help personalize your surroundings.

"We were 100% satisfied with Washingtonian and with their work building our addition and deck. Not only was the workmanship and quality of the construction outstanding, but they operated with honesty and integrity. Their goal was our satisfaction and building a quality addition and deck. They accomplished all three and were reliable, dependable and conscientious. At no time did we believe that they had over-committed or were unable to deliver on what they had promised. They never cut corners to rush to another job nor did I ever feel that they were not spending the necessary time to ensure that the work on our job was thorough and complete. Travis, Kris and their crew were 100% professional, communicative and transparent. We will be using Washingtonian again, without hesitation. Our experience was excellent and they did an awesome job."

Walter J on January 2024

Transform your space with Washingtonian Companies, your interior/exterior design-build team. Whether it's roofing, windows, siding, decks, kitchens, bathrooms, or additions, we are your trusted partner to bring your vision to life and help personalize your surroundings.

"We were 100% satisfied with Washingtonian and with their work building our addition and deck. Not only was the workmanship and quality of the construction outstanding, but they operated with honesty and integrity. Their goal was our satisfaction and building a quality addition and deck. They accomplished all three and were reliable, dependable and conscientious. At no time did we believe that they had over-committed or were unable to deliver on what they had promised. They never cut corners to rush to another job nor did I ever feel that they were not spending the necessary time to ensure that the work on our job was thorough and complete. Travis, Kris and their crew were 100% professional, communicative and transparent. We will be using Washingtonian again, without hesitation. Our experience was excellent and they did an awesome job."

Walter J on January 2024


Avatar for Freedom Fence & Deck LLC
Freedom Fence & Deck LLC
414 A Back River Neck Rd
4.74(
243
)
Approved Pro
Freedom Fence & Deck LLC
414 A Back River Neck Rd
4.74(
243
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2579 local quotes requested

Freedom Fence and Deck specializes in affordable top quality maintenance free decks and fences. We are an owner operated company with zero complaints. We also have earned a A+ rating with the Better Business Bureau. We offer a limited Lifetime Warranty on all our work. Angie's List has awarded us the Super Service Award three years in a row.

"Freedom Fence & Deck did an excellent job install our new deck. The sales rep and the workers were friendly and professional. Additionally, I love that the owner of the company is a veteran, and the company offered the best veterans discount compared to the competitive quotes."

Dominique D on January 2025

Freedom Fence and Deck specializes in affordable top quality maintenance free decks and fences. We are an owner operated company with zero complaints. We also have earned a A+ rating with the Better Business Bureau. We offer a limited Lifetime Warranty on all our work. Angie's List has awarded us the Super Service Award three years in a row.

"Freedom Fence & Deck did an excellent job install our new deck. The sales rep and the workers were friendly and professional. Additionally, I love that the owner of the company is a veteran, and the company offered the best veterans discount compared to the competitive quotes."

Dominique D on January 2025


Avatar for Straka Contracting LLC
Straka Contracting LLC
Po Box 2345
4.87(
153
)
Approved Pro
Straka Contracting LLC
Po Box 2345
4.87(
153
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
645 local quotes requested

I started Straka Contracting over a decade ago in Howard County after having gained considerable experience in all areas of home improvement. Much of that know-how came from working with my father who has been in the trade since the 1960s. Today we serve the central Maryland area with a full array of services including remodeling, additions, decks, fencing, roofing, skylights, siding, windows, doors, gutters and gutter guards. Straka Contracting is dedicated to quality work and we offer a guarantee to back it up on every job. What’s more, when I take on work I am personally involved from beginning to end, making sure things are done properly. Karel Straka, Owner Straka Contracting

"Karel Straka has helped me on and off with construction items on my townhouse for almost twenty years, making major changes to my deck and patio among other things. I find him easy to work with, very thorough, trusty-worthy, reliable and affordable. Sometimes I submit my own design, and he always does it better."

Ken M on January 2025

I started Straka Contracting over a decade ago in Howard County after having gained considerable experience in all areas of home improvement. Much of that know-how came from working with my father who has been in the trade since the 1960s. Today we serve the central Maryland area with a full array of services including remodeling, additions, decks, fencing, roofing, skylights, siding, windows, doors, gutters and gutter guards. Straka Contracting is dedicated to quality work and we offer a guarantee to back it up on every job. What’s more, when I take on work I am personally involved from beginning to end, making sure things are done properly. Karel Straka, Owner Straka Contracting

"Karel Straka has helped me on and off with construction items on my townhouse for almost twenty years, making major changes to my deck and patio among other things. I find him easy to work with, very thorough, trusty-worthy, reliable and affordable. Sometimes I submit my own design, and he always does it better."

Ken M on January 2025


Avatar for A & L Construction
A & L Construction
10621 Oliver St
4.36(
102
)
Approved Pro
A & L Construction
10621 Oliver St
4.36(
102
)
Approved Pro
Customers say: Quality work
577 local quotes requested
40 years of experience

A & L Construction was established in April 1985. Our primary focus: positioning this company as the best construction firm for custom design decks, additions, and remodeling. We serve mostly the Virginia, Maryland, and Washington DC areas. Serving both the builders and homeowners, at A & L Construction we have succeeded in our objective and we continue to expand. Years before incorporating A & L Construction, the founders, Keith and Bill met while working for other companies. Gaining first hand knowledge of quality and craftsmanship in Commercial Remodeling and Historic Restoration projects. Additional DBA - A & L Construction. Locally owned. A&L construction will never ask for money up front. We always get work compleated before asking for payment.

"Oregon usa"

Gero M on June 2022

A & L Construction was established in April 1985. Our primary focus: positioning this company as the best construction firm for custom design decks, additions, and remodeling. We serve mostly the Virginia, Maryland, and Washington DC areas. Serving both the builders and homeowners, at A & L Construction we have succeeded in our objective and we continue to expand. Years before incorporating A & L Construction, the founders, Keith and Bill met while working for other companies. Gaining first hand knowledge of quality and craftsmanship in Commercial Remodeling and Historic Restoration projects. Additional DBA - A & L Construction. Locally owned. A&L construction will never ask for money up front. We always get work compleated before asking for payment.

"Oregon usa"

Gero M on June 2022


Avatar for Joist Construction LLC
Joist Construction LLC
6434 View Point Ct
5.00(
13
)
Approved Pro
Joist Construction LLC
6434 View Point Ct
5.00(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
302 local quotes requested

Joist construction is a company committed to the quality and agility of its services, Keeping the dates of your schedule transparently and efficiently. The contact is direct with the company's founders. JOIST is focused on renovating and improving the most beautiful points of your residence, such as Decks, balconies, gazebos, fences, patios, and everything else that our customers need. We serve mainly in the Maryland, Virginia and DC areas, but if you are not from these areas, please contact us to try to make your project viable. If you planning to enlighten your patio or just perform a small repair on your deck, we are the company you are looking for, count on JOIST construction for a new home! Get in touch now!

"The work on my deck was very quick and well done, and adjustments were made smoothly. The management was excellent and I couldn’t be happier that I chose Joist. I have already passed their information around to neighbors!"

Nina A on March 2025

Joist construction is a company committed to the quality and agility of its services, Keeping the dates of your schedule transparently and efficiently. The contact is direct with the company's founders. JOIST is focused on renovating and improving the most beautiful points of your residence, such as Decks, balconies, gazebos, fences, patios, and everything else that our customers need. We serve mainly in the Maryland, Virginia and DC areas, but if you are not from these areas, please contact us to try to make your project viable. If you planning to enlighten your patio or just perform a small repair on your deck, we are the company you are looking for, count on JOIST construction for a new home! Get in touch now!

"The work on my deck was very quick and well done, and adjustments were made smoothly. The management was excellent and I couldn’t be happier that I chose Joist. I have already passed their information around to neighbors!"

Nina A on March 2025


Avatar for Montgomery Decks
Montgomery Decks
5305 Jefferson Pike
5.00(
4
)
Approved Pro
Montgomery Decks
5305 Jefferson Pike
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
215 local quotes requested

Maryland most trusted deck builders! Enhance your home's allure and worth with a beautifully designed custom deck. Create a functional outdoor haven for lasting enjoyment with your loved ones.

"They are very attentive for customer service and did a good job on follow-up."

Yiting N on April 2023

Maryland most trusted deck builders! Enhance your home's allure and worth with a beautifully designed custom deck. Create a functional outdoor haven for lasting enjoyment with your loved ones.

"They are very attentive for customer service and did a good job on follow-up."

Yiting N on April 2023


Avatar for DMV Pro Services
DMV Pro Services
Essex
4.94(
152
)
Approved Pro
DMV Pro Services
Essex
4.94(
152
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1210 local quotes requested

WE offer Senior, Teachers, Military and First Responders discounts! ONE-STOP- SHOP, with over 15 years of professional experience covering all your home improvement needs. Our specialties include: Bathroom and Kitchen Remodel, Home Renovations, Interior and exterior Painting, Decks, Gutter Installation, Flooring Installation. Our quotes are ALWAYS FREE! We are licensed and insured to deliver superior service. We guarantee great quality results on all projects offering fair and competitive prices. We take great pride in pleasing our customers! Give us a call today, we look forward to serving you!

"Very hardworking, great and trustworthy! Such good communication and loved having them"

Kayla C on April 2025

WE offer Senior, Teachers, Military and First Responders discounts! ONE-STOP- SHOP, with over 15 years of professional experience covering all your home improvement needs. Our specialties include: Bathroom and Kitchen Remodel, Home Renovations, Interior and exterior Painting, Decks, Gutter Installation, Flooring Installation. Our quotes are ALWAYS FREE! We are licensed and insured to deliver superior service. We guarantee great quality results on all projects offering fair and competitive prices. We take great pride in pleasing our customers! Give us a call today, we look forward to serving you!

"Very hardworking, great and trustworthy! Such good communication and loved having them"

Kayla C on April 2025

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Swimming pool heaters installations and replacements FAQs

Yes, you can add a heater to an existing pool. A pro can retrofit a heater to nearly any in-ground or above-ground pool. Adding a heater allows you to start the swim season earlier, finish it later, and maintain a steady water temperature in between. Many owners schedule the job during a larger pool upgrade, but it also works as a standalone project. Professional installation ties the new unit into the existing pump and plumbing for safe, efficient operation.

Most owners switch the heater on a day or two before they plan to swim, then shut it down afterward. Reaching the target temperature can take 24 to 72 hours, depending on pool size and outdoor conditions. Using a cover while the heater is off helps hold the heat and keeps energy costs in check.

Pool heaters can freeze if left exposed to extreme conditions. Freezing can damage internal heater components, potentially leading to costly pool repairs. Cycling water, covering the heater, and regular maintenance help prevent freezing. Sealing or winterizing your heater also protects it during the season—this involves draining water from the heater and its components.

Pool heaters operate with lifespans spanning from seven to 30 years. Gas and propane models last seven to 12 years, while electric and solar heaters perform efficiently for up to 30 years. Consistent professional maintenance and routine inspections extend the heater’s life and improve its performance, ensuring a safe and reliable heating system for your pool.

Before hiring a pool heater installation contractor, conduct thorough research by reviewing online feedback and gathering recommendations from trusted sources. Contact multiple professionals to discuss pricing, request references, and understand the complete installation process. This careful evaluation ensures you select a qualified contractor who delivers high-quality service and a successful installation.

The homeowners guide to swimming pool heaters installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
new swimming pool heating system
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