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Swimming pool heaters installers and replacers in Holtsville

Avatar for One Love Pools and Spa

One Love Pools and Spa

82 Gooseberry Road
5.00(
27
)
Approved Pro

One Love Pools and Spa

82 Gooseberry Road
5.00(
27
)
Approved Pro
Free onsite estimate
Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. Our top priority is customer satisfaction and will go the extra mile. We are experts in our trade and will work with you from conception to competition. We strive in making all clients, repeat clients. Call us today you'll be relieved you did. Thank you

"I hired One Love Pools and Spa to install my pool pump. Alex showed up on time and gave me a free estimate. His price was very fair and he made room in his schedule and installed the pump the same day. He was very polite and courteous, and did a professional job. Needless to say, if I need any service in the future, I will not hesitate to reach out to him. "

Anthony M on September 2025

We pride our company on reliability, great communication, integrity, and quality work. Our top priority is customer satisfaction and will go the extra mile. We are experts in our trade and will work with you from conception to competition. We strive in making all clients, repeat clients. Call us today you'll be relieved you did. Thank you

"I hired One Love Pools and Spa to install my pool pump. Alex showed up on time and gave me a free estimate. His price was very fair and he made room in his schedule and installed the pump the same day. He was very polite and courteous, and did a professional job. Needless to say, if I need any service in the future, I will not hesitate to reach out to him. "

Anthony M on September 2025


Avatar for NCC Prime Construction, Inc.

NCC Prime Construction, Inc.

445 Broadhollow Road
5.00(
11
)
Approved Pro

NCC Prime Construction, Inc.

445 Broadhollow Road
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
265 local quotes requested

NCC Prime Construction Inc, established in 2012 by current owner Nikos Charalambous, is your premier destination for superior craftsmanship. Specializing in general carpentry, including Decks & Porches, Fences, Roofing & Siding, Patios and General Contracting, our team delivers excellence with every project. Fully licensed, insured and certified by industry leaders, our professional crew ensures your satisfaction. With over a decade of dedicated service to Long Island communities, trust us to exceed your expectations. Experience the difference with NCC Prime Construction: Where quality meets reliability and 5-star reviews tell our story.

"NCC PRIME CONSTUCTION did a great job. The owner responded quickly to my inquiry. He met me at my house and we reviewed the project in detail. He promptly provided an estimate in writing. The owner and the crew showed up as scheduled. The worker were experienced and respectful. All scrap materials were cleaned up and removed at the completion of the job."

Vinny C on June 2025

NCC Prime Construction Inc, established in 2012 by current owner Nikos Charalambous, is your premier destination for superior craftsmanship. Specializing in general carpentry, including Decks & Porches, Fences, Roofing & Siding, Patios and General Contracting, our team delivers excellence with every project. Fully licensed, insured and certified by industry leaders, our professional crew ensures your satisfaction. With over a decade of dedicated service to Long Island communities, trust us to exceed your expectations. Experience the difference with NCC Prime Construction: Where quality meets reliability and 5-star reviews tell our story.

"NCC PRIME CONSTUCTION did a great job. The owner responded quickly to my inquiry. He met me at my house and we reviewed the project in detail. He promptly provided an estimate in writing. The owner and the crew showed up as scheduled. The worker were experienced and respectful. All scrap materials were cleaned up and removed at the completion of the job."

Vinny C on June 2025


Avatar for Good to Go Maintenance Inc

Good to Go Maintenance Inc

18 KARL AVE
5.00(
9
)
Approved Pro

Good to Go Maintenance Inc

18 KARL AVE
5.00(
9
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
495 local quotes requested

Good to Go Maintenance Inc has been in business for 45 years offering general construction, Repairs, and Renovation. We are insured, licensed and offer a detailed timeline with each project. We are also Roofing specialists (GAF certified roofing contractors) offering the "System Plus" lifetime material and labor warranty. (Free with every complete roof replacement).

Good to Go Maintenance Inc has been in business for 45 years offering general construction, Repairs, and Renovation. We are insured, licensed and offer a detailed timeline with each project. We are also Roofing specialists (GAF certified roofing contractors) offering the "System Plus" lifetime material and labor warranty. (Free with every complete roof replacement).


Avatar for Oronoque Home Improvement LLC

Oronoque Home Improvement LLC

1130 James Farm Rd
4.62(
77
)
Approved Pro

Oronoque Home Improvement LLC

1130 James Farm Rd
4.62(
77
)
Approved Pro
Customers say: Quality work
309 local quotes requested
45 years of experience

Your home is the most important investment of your life. It is our job to protect that investment through our extensive experience, addressing all your needs to maintain the value of your home. Together with our outstanding staff, we provide quality home improvement services to the area. We encourage a lasting relationship with our customers, as our satisfied customers are our best advertisement. We offer no obligation estimates dealing directly with the owner. With your estimate you will receive local references and our certificate of insurance. We would be happy to consult with you regarding every aspect of your project. Certified Lead Renovator. Additional phone number: 1-866-775-1920

"Jim and his crew were great…on time professional…kept me updated… high quality work… worth the price… would recommend highly"

Nicola K on June 2024

Your home is the most important investment of your life. It is our job to protect that investment through our extensive experience, addressing all your needs to maintain the value of your home. Together with our outstanding staff, we provide quality home improvement services to the area. We encourage a lasting relationship with our customers, as our satisfied customers are our best advertisement. We offer no obligation estimates dealing directly with the owner. With your estimate you will receive local references and our certificate of insurance. We would be happy to consult with you regarding every aspect of your project. Certified Lead Renovator. Additional phone number: 1-866-775-1920

"Jim and his crew were great…on time professional…kept me updated… high quality work… worth the price… would recommend highly"

Nicola K on June 2024


Avatar for Decks Only

Decks Only

105 Broadway
4.20(
5
)
Approved Pro

Decks Only

105 Broadway
4.20(
5
)
Approved Pro
Customers say: Quality work
335 local quotes requested
28 years of experience

We have Been in The Building Industry since 1997 and have built more than 2,000. Decks throughout Long Island . Our early on experience as a Custom Home builder/Remodeler Gave us the ability to Produce incredible Well built Decks to last for years to come . We are Certified installers for Trex, Timber Tech, Azek & Fiberon . We also specialize in IPE hardwood . Major manufacturers include: Trex Timbertech Azek Fiberon Cambridge, Nicolock, Paving stones

"From taking down the old deck to installing the wrap around deck with lights, clean up, it could not have gone smoother. Professional, reliable, trustworthy, great! Hoping to use this company again."

Ann Marie C on February 2025

We have Been in The Building Industry since 1997 and have built more than 2,000. Decks throughout Long Island . Our early on experience as a Custom Home builder/Remodeler Gave us the ability to Produce incredible Well built Decks to last for years to come . We are Certified installers for Trex, Timber Tech, Azek & Fiberon . We also specialize in IPE hardwood . Major manufacturers include: Trex Timbertech Azek Fiberon Cambridge, Nicolock, Paving stones

"From taking down the old deck to installing the wrap around deck with lights, clean up, it could not have gone smoother. Professional, reliable, trustworthy, great! Hoping to use this company again."

Ann Marie C on February 2025


Avatar for S&R Pool & Spa Inc

S&R Pool & Spa Inc

236 DUKES PKWY E
4.13(
48
)
Approved Pro

S&R Pool & Spa Inc

236 DUKES PKWY E
4.13(
48
)
Approved Pro
Customers say: Super punctual
512 local quotes requested
38 years of experience

S&R is a very professional yet personal company. We pride ourselves on timely performances with competitive pricing. We are offering a free pool opening or closing with every qualified pool renovation.

"The guys came promptly, did the tile repair work perfectly and the overall experience was great! Will call them again if needed!"

Mary C on June 2024

S&R is a very professional yet personal company. We pride ourselves on timely performances with competitive pricing. We are offering a free pool opening or closing with every qualified pool renovation.

"The guys came promptly, did the tile repair work perfectly and the overall experience was great! Will call them again if needed!"

Mary C on June 2024


Avatar for Sweeney's Pool Service, Inc

Sweeney's Pool Service, Inc

25 Plant Ave
4.71(
73
)
Approved Pro

Sweeney's Pool Service, Inc

25 Plant Ave
4.71(
73
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
2088 local quotes requested

Sweeney's Pool Service, Inc. is a premier swimming pool service company dedicated to residential clients in Suffolk County, providing exceptional service for over 10 years. Owner Kenneth Sweeney began his journey in the swimming pool industry in 2007, gaining valuable knowledge and hands-on experience while working for several major companies. During this time, he listened to customers and identified common concerns, particularly regarding communication barriers and reliability. In the spring of 2012, Kenneth decided to address these issues by founding his own company, Sweeney’s Pool Service, Inc. His mission was straightforward: to listen to customers and deliver dependable service. From day one, the company emphasized core business values, starting with customer interactions in the office. Staff members are trained to answer calls with a positive attitude and to genuinely listen to homeowners' needs. By taking the time to diagnose problems and provide effective solutions, they create a better customer experience. The service technicians at Sweeney’s are fully trained and licensed to handle everything from basic pool cleaning to complex pool heater repairs and custom in-ground pool builds. With a committed team, Sweeney's Pool Service, Inc. has experienced continued success and expanded its customer base over the years. Each year, they actively listen to customer feedback to enhance their services and better serve the community. As Kenneth Sweeney puts it, “Professionalism and reliability are the keys to success.”

"⚠️ Read before deciding to go with this company! ⚠️ I regret ignoring the negative reviews when I chose Sweeney’s to install my pool. They damaged my property, have taken no accountability and have chosen a vindictive approach to the matter. I urge you to read my experience, and the other negative reviews posted, and think about whether you can trust them to work at your home. They excavated my yard at the end of November 2024 during heavy rain, then left the ground unbackfilled for 12 days. This left my concrete stairs unsupported, with the footing exposed (see photos) and the stairs became detached from my patio. When I contacted Sweeney’s with photos, they relied on their mason affiliate, Devin of Flawless Masonry, who stated the stairs were improperly constructed. THEY DID NOT ASSESS THE SITUATION IN PERSON, NOT THEN OR EVER! I spoke with Devin prior to excavation and he assured me that the stairs were ok and they would not need additional support, I have the text message proof. I never heard from Ken Sweeney directly; however, communication with Reed Communiello, the project manager, on behalf of Sweeney’s has been extremely disheartening. An agreement was discussed where Devin would resolve the situation at cost, at our expense. I received an email from Sweeney's attorney, which included a non-disparagement clause. I agreed to not speak about the issue with the stairs but I felt it left me without recourse should the remaining work not be completed satisfactorily. I agreed to the terms however, Sweeney’s contacted the Town of Hempstead inquiring whether my patio and staircase were built without permits, which unbeknownst to us they were (built prior to 1996; purchased the home in 2018). Sweeney’s rescinding the agreement. They think a homeowner does not have rights when structures are not permitted but that is not the case. My real estate attorney attempted to reach out to them through their attorney, but to no avail. I attempted to retrieve liability insurance. They submitted the only insurance required by the ToH, worker’s compensation, under a different company, JAS Aquatics. They also changed the Contractor Information Form listing the contractor as JAS Aquatics. When I questioned this, I was told “The entities doing the work are valid with the insurance submitted.” I am unsure if Sweeney’s does hold liability insurance or not. I hired a civil and structural engineer. The engineer's report confirmed that the structures were built properly, despite lacking permits. He noted that Sweeney’s was negligent for not supporting the stairs while leaving the footing exposed for 12 days, in which 6 of those days it rained. Sweeney’s dismissed the report—again, without ever coming to assess the situation in person. I am left with no choice but to demolish and rebuild the stairs myself. Due to their spiteful actions of reporting me to the ToH, I now need to have plans drawn up to obtain permits for my patio, stairs and enclosed entryway before any further work can be done. This not only delays the process, it escalates cost. My property has been left in disarray for over a month. I paid in full for the excavation process, yet my deep end is still not dug out. My gate has been disassembled and left that way, my existing pavers were destroyed during the excavation, and my back fence became uneven due to being left without backfill for 20 days. I had to request for them to come back to do the backfill so the fence didn’t collapse. There is also a pile of boxes on my driveway—some empty and others filled with equipment. If this review helps even one person avoid a similar experience, it will be worth it. The stairs existed for at least 30 years without any issue and only detached once Sweeney’s left the exposed concrete footing unsupported for 12 days in the rain. My situation may be unique, but the lack of accountability from Sweeney’s is not, as you can see from other reviews. You do not want to find yourself on the wrong side of Sweeney’s, because once you do they will treat you with utter disregard. Choose wisely!"

Nicole B on January 2025

Sweeney's Pool Service, Inc. is a premier swimming pool service company dedicated to residential clients in Suffolk County, providing exceptional service for over 10 years. Owner Kenneth Sweeney began his journey in the swimming pool industry in 2007, gaining valuable knowledge and hands-on experience while working for several major companies. During this time, he listened to customers and identified common concerns, particularly regarding communication barriers and reliability. In the spring of 2012, Kenneth decided to address these issues by founding his own company, Sweeney’s Pool Service, Inc. His mission was straightforward: to listen to customers and deliver dependable service. From day one, the company emphasized core business values, starting with customer interactions in the office. Staff members are trained to answer calls with a positive attitude and to genuinely listen to homeowners' needs. By taking the time to diagnose problems and provide effective solutions, they create a better customer experience. The service technicians at Sweeney’s are fully trained and licensed to handle everything from basic pool cleaning to complex pool heater repairs and custom in-ground pool builds. With a committed team, Sweeney's Pool Service, Inc. has experienced continued success and expanded its customer base over the years. Each year, they actively listen to customer feedback to enhance their services and better serve the community. As Kenneth Sweeney puts it, “Professionalism and reliability are the keys to success.”

"⚠️ Read before deciding to go with this company! ⚠️ I regret ignoring the negative reviews when I chose Sweeney’s to install my pool. They damaged my property, have taken no accountability and have chosen a vindictive approach to the matter. I urge you to read my experience, and the other negative reviews posted, and think about whether you can trust them to work at your home. They excavated my yard at the end of November 2024 during heavy rain, then left the ground unbackfilled for 12 days. This left my concrete stairs unsupported, with the footing exposed (see photos) and the stairs became detached from my patio. When I contacted Sweeney’s with photos, they relied on their mason affiliate, Devin of Flawless Masonry, who stated the stairs were improperly constructed. THEY DID NOT ASSESS THE SITUATION IN PERSON, NOT THEN OR EVER! I spoke with Devin prior to excavation and he assured me that the stairs were ok and they would not need additional support, I have the text message proof. I never heard from Ken Sweeney directly; however, communication with Reed Communiello, the project manager, on behalf of Sweeney’s has been extremely disheartening. An agreement was discussed where Devin would resolve the situation at cost, at our expense. I received an email from Sweeney's attorney, which included a non-disparagement clause. I agreed to not speak about the issue with the stairs but I felt it left me without recourse should the remaining work not be completed satisfactorily. I agreed to the terms however, Sweeney’s contacted the Town of Hempstead inquiring whether my patio and staircase were built without permits, which unbeknownst to us they were (built prior to 1996; purchased the home in 2018). Sweeney’s rescinding the agreement. They think a homeowner does not have rights when structures are not permitted but that is not the case. My real estate attorney attempted to reach out to them through their attorney, but to no avail. I attempted to retrieve liability insurance. They submitted the only insurance required by the ToH, worker’s compensation, under a different company, JAS Aquatics. They also changed the Contractor Information Form listing the contractor as JAS Aquatics. When I questioned this, I was told “The entities doing the work are valid with the insurance submitted.” I am unsure if Sweeney’s does hold liability insurance or not. I hired a civil and structural engineer. The engineer's report confirmed that the structures were built properly, despite lacking permits. He noted that Sweeney’s was negligent for not supporting the stairs while leaving the footing exposed for 12 days, in which 6 of those days it rained. Sweeney’s dismissed the report—again, without ever coming to assess the situation in person. I am left with no choice but to demolish and rebuild the stairs myself. Due to their spiteful actions of reporting me to the ToH, I now need to have plans drawn up to obtain permits for my patio, stairs and enclosed entryway before any further work can be done. This not only delays the process, it escalates cost. My property has been left in disarray for over a month. I paid in full for the excavation process, yet my deep end is still not dug out. My gate has been disassembled and left that way, my existing pavers were destroyed during the excavation, and my back fence became uneven due to being left without backfill for 20 days. I had to request for them to come back to do the backfill so the fence didn’t collapse. There is also a pile of boxes on my driveway—some empty and others filled with equipment. If this review helps even one person avoid a similar experience, it will be worth it. The stairs existed for at least 30 years without any issue and only detached once Sweeney’s left the exposed concrete footing unsupported for 12 days in the rain. My situation may be unique, but the lack of accountability from Sweeney’s is not, as you can see from other reviews. You do not want to find yourself on the wrong side of Sweeney’s, because once you do they will treat you with utter disregard. Choose wisely!"

Nicole B on January 2025


Avatar for A.S.M. Home Improvements

A.S.M. Home Improvements

3026 N Ocean Ave
5.00(
7
)
Approved Pro

A.S.M. Home Improvements

3026 N Ocean Ave
5.00(
7
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1462 local quotes requested

We are family owned and operated with over 25 years experience remodeling homes. We pride ourselves on offering a quality product and professional service tailored to your needs. Take a look at our previous work and contact us to discuss your next remodeling project today!.

"Anthony is the consummate professional. He worked with us to design a porch that not only looks outstanding but adds curb appeal and value to our home we never could have imagined. He is efficient, neat, completely open to last minute "hey we forgot but could you...", incredibly excellent at everything he does (he's also done for us internal painting, fixed floor planks etc) and most important is that he is just the nicest person with whom to work on home projects. Highly recommend."

judy m on July 2025

We are family owned and operated with over 25 years experience remodeling homes. We pride ourselves on offering a quality product and professional service tailored to your needs. Take a look at our previous work and contact us to discuss your next remodeling project today!.

"Anthony is the consummate professional. He worked with us to design a porch that not only looks outstanding but adds curb appeal and value to our home we never could have imagined. He is efficient, neat, completely open to last minute "hey we forgot but could you...", incredibly excellent at everything he does (he's also done for us internal painting, fixed floor planks etc) and most important is that he is just the nicest person with whom to work on home projects. Highly recommend."

judy m on July 2025


Avatar for LEVCO POOLS INC

LEVCO POOLS INC

50 Old Camplain Rd
4.78(
95
)
Approved Pro

LEVCO POOLS INC

50 Old Camplain Rd
4.78(
95
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
62 local quotes requested

**IN GROUND POOLS ONLY** Levco Pools is a full service pool company specializing in all facets of in-ground pool projects and service. Fully insured, fully licensed, and a member of the NJ Better Business Bureau (A+ Rating). We have been an Angie's list Super Service award winner for service and construction for the past 11 years in a row. We were also recently awarded "Best of Houzz" for 2015 & 2016. We are an "Authorized Hayward Repair Center". As such, should you select Levco Pools you can rest assured knowing that you have selected a reputable company that has been proudly serving central NJ since 1986. We specialize in and service only in-ground pools and spas.

"This happened the morning we were leaving the state to attend a wedding. We were to be gone for 8 days. I had no time to deal with it so I called Levco. They took care of it completely and I did not have to worry about at all. Also they could have charged a lot more than they did. The price was very fair. They are the best!"

Greg G on September 2022

**IN GROUND POOLS ONLY** Levco Pools is a full service pool company specializing in all facets of in-ground pool projects and service. Fully insured, fully licensed, and a member of the NJ Better Business Bureau (A+ Rating). We have been an Angie's list Super Service award winner for service and construction for the past 11 years in a row. We were also recently awarded "Best of Houzz" for 2015 & 2016. We are an "Authorized Hayward Repair Center". As such, should you select Levco Pools you can rest assured knowing that you have selected a reputable company that has been proudly serving central NJ since 1986. We specialize in and service only in-ground pools and spas.

"This happened the morning we were leaving the state to attend a wedding. We were to be gone for 8 days. I had no time to deal with it so I called Levco. They took care of it completely and I did not have to worry about at all. Also they could have charged a lot more than they did. The price was very fair. They are the best!"

Greg G on September 2022


Avatar for Unlimited Outdoor Designs

Unlimited Outdoor Designs

435 Brook Ave Unit 21
4.24(
21
)
Approved Pro

Unlimited Outdoor Designs

435 Brook Ave Unit 21
4.24(
21
)
Approved Pro
Customers say: Terrific value
2733 local quotes requested
12 years of experience

Unlimited Outdoor Designs, specializing in Indoor Kitchens and Baths and Basement remodels. Fencing, Decks, Railings, Concrete, and Masonry work. We are family-owned and take pride in treating our clients like family. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.

"Was professional and got it done in a timely fashion."

Michael N on May 2024

Unlimited Outdoor Designs, specializing in Indoor Kitchens and Baths and Basement remodels. Fencing, Decks, Railings, Concrete, and Masonry work. We are family-owned and take pride in treating our clients like family. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.

"Was professional and got it done in a timely fashion."

Michael N on May 2024

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FAQs for swimming pool heaters installation and replacement projects in Holtsville, NY

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 Holtsville, NY 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.

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