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Find Boiler installation pros in Katonah

Avatar for Westfair Water Systems, Inc.

Westfair Water Systems, Inc.

375 ADAMS ST
4.80(
40
)
Approved Pro

Westfair Water Systems, Inc.

375 ADAMS ST
4.80(
40
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
52 local quotes requested

Award Winning Water Treatment Company. A+ BBB Rating. Westfair Water Systems has been a leading force in the water treatment industry. Our Certified Technicians are trained to deal with the most complex water situations. We pride ourselves on customer service and satisfaction. Westfair Water Systems is an authorized, independent Kinetico Dealer proudly serving Westchester & Putnam Counties including surrounding areas for over 20 years. Call to Schedule a FREE WATER TEST, estimate or appointment today!

"excellent installation"

Abe R on June 2025

Award Winning Water Treatment Company. A+ BBB Rating. Westfair Water Systems has been a leading force in the water treatment industry. Our Certified Technicians are trained to deal with the most complex water situations. We pride ourselves on customer service and satisfaction. Westfair Water Systems is an authorized, independent Kinetico Dealer proudly serving Westchester & Putnam Counties including surrounding areas for over 20 years. Call to Schedule a FREE WATER TEST, estimate or appointment today!

"excellent installation"

Abe R on June 2025


Avatar for Southeast Plumbing & Heating

Southeast Plumbing & Heating

PO BOX 110
4.81(
27
)
Approved Pro

Southeast Plumbing & Heating

PO BOX 110
4.81(
27
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
Free onsite estimate

Southeast Plumbing and Heating is the areas #1 family owned plumbing and heating service since 1967. We pride ourselves on honesty, integrity, and affordable prices. Our team of professionals are ready to assist 24/7. No extra charge for holidays and weekends. Call us for a free estimate today! 845-821-4012

"A plumber came and left saying they'd get back to me with a quote, but I never heard from them."

Michiko S on June 2025

Southeast Plumbing and Heating is the areas #1 family owned plumbing and heating service since 1967. We pride ourselves on honesty, integrity, and affordable prices. Our team of professionals are ready to assist 24/7. No extra charge for holidays and weekends. Call us for a free estimate today! 845-821-4012

"A plumber came and left saying they'd get back to me with a quote, but I never heard from them."

Michiko S on June 2025


"The provider came and unclogged the toilet but left me with a toilet that would not stop running. After contacting the provider to let them know they texted me a YouTube video. They said that they were going to come back to complete the repair but did not. I ended up having to hire another company to complete the job."

Adam W on October 2025

My focus is to provide a professional and affordable service for all customers based on our expirienced technicians and high quality equipments ready to take care of any drain problem or any emergency 24/7

"The provider came and unclogged the toilet but left me with a toilet that would not stop running. After contacting the provider to let them know they texted me a YouTube video. They said that they were going to come back to complete the repair but did not. I ended up having to hire another company to complete the job."

Adam W on October 2025


Avatar for Professional Water Systems

Professional Water Systems

963 Ethan Allen Hwy
4.47(
32
)
Approved Pro

Professional Water Systems

963 Ethan Allen Hwy
4.47(
32
)
Approved Pro
Customers say: Quality work
32 local quotes requested
45 years of experience

Professional Water Systems was established in 1980. We are water filtration and purification specialists. We have been serving Fairfield, New Haven, Litchfield, Westchester, Putnum and Cutchess counties for more than 31 years. We are a family owned and operated company that prides itself on quality products and service. We classify ourselves as a big/small company capable of doing residential and commercial work while providing personalized friendly service. One of our staff is always available to respond to your questions about problems or services that you may require. We look forward to hearing from you!

"Never called."

Nelson B on September 2020

Professional Water Systems was established in 1980. We are water filtration and purification specialists. We have been serving Fairfield, New Haven, Litchfield, Westchester, Putnum and Cutchess counties for more than 31 years. We are a family owned and operated company that prides itself on quality products and service. We classify ourselves as a big/small company capable of doing residential and commercial work while providing personalized friendly service. One of our staff is always available to respond to your questions about problems or services that you may require. We look forward to hearing from you!

"Never called."

Nelson B on September 2020


Avatar for Old Faithful Pump Co

Old Faithful Pump Co

22 Brayton Rd
5.00(
39
)
Approved Pro

Old Faithful Pump Co

22 Brayton Rd
5.00(
39
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

We are an owner/operator company with 17 years of experience. We are committed to offering honest service and competitive prices. We use quality material and perform work to the highest standard to ensure longevity of the equipment you will rely on every day. We are a full service well pump & water treatment company offering 24 Hour Emergency Pump Service.We also offer water testing, water filtration, UV lights, water softeners and installation and service of water tanks.

"Joe is very experienced and very professional to replace my well pump, bring up the well cap to above ground level and installed house water filter. He discussed the job in detail and gave a fair quote. He came on time and did the job at high quality. He cleaned up everything before he finish. He took the 5% Angies list coupon as well. Will use him again and highly recommended if you need well pump service!"

Zeqiang G on September 2018

We are an owner/operator company with 17 years of experience. We are committed to offering honest service and competitive prices. We use quality material and perform work to the highest standard to ensure longevity of the equipment you will rely on every day. We are a full service well pump & water treatment company offering 24 Hour Emergency Pump Service.We also offer water testing, water filtration, UV lights, water softeners and installation and service of water tanks.

"Joe is very experienced and very professional to replace my well pump, bring up the well cap to above ground level and installed house water filter. He discussed the job in detail and gave a fair quote. He came on time and did the job at high quality. He cleaned up everything before he finish. He took the 5% Angies list coupon as well. Will use him again and highly recommended if you need well pump service!"

Zeqiang G on September 2018


Astacio Plumbing & Heating

PO Box 4382
4.26(
34
)
Approved Pro

Astacio Plumbing & Heating

PO Box 4382
4.26(
34
)
Approved Pro
Customers say: Super punctual
241 local quotes requested
21 years of experience

What sets Astacio Plumbing and Heating apart from the rest of the field is the use of cutting edge technology to increase reliability, save you time and money, and improve safety on the job. Rich stays up-to-date on all the latest developments in plumbing and heating technology to determine how best to serve his customers. His trucks all carry the tools to get the job done on time and on budget, with as little disruption as possible. Astacio Plumbing and Heating has also spent years developing strong relationships with the best companies in the plumbing and heating business so that they can provide great service to you, quick delivery of replacement parts, and reasonable prices on excellent products. See website for additional service area. Additional email - [email protected].

"Dreadful experience. We had been customers of Astacio since 2015 when they installed our first tankless boiler which failed completely after 7 years and needed to be replaced in late 2022. ($10,000+) Their second one just stopped working; a dodgy board? The part is under warranty but they want almost $1,000 to replace it in the boiler; probably less than 2 hours work. I thought they used to be a good local business with ties to the community but be careful; their tankless boilers are unreliable and they'll try to rip you off when your heat goes out in the winter. So much for standing by their work. I'll never use them again."

CATHAL C on December 2024

What sets Astacio Plumbing and Heating apart from the rest of the field is the use of cutting edge technology to increase reliability, save you time and money, and improve safety on the job. Rich stays up-to-date on all the latest developments in plumbing and heating technology to determine how best to serve his customers. His trucks all carry the tools to get the job done on time and on budget, with as little disruption as possible. Astacio Plumbing and Heating has also spent years developing strong relationships with the best companies in the plumbing and heating business so that they can provide great service to you, quick delivery of replacement parts, and reasonable prices on excellent products. See website for additional service area. Additional email - [email protected].

"Dreadful experience. We had been customers of Astacio since 2015 when they installed our first tankless boiler which failed completely after 7 years and needed to be replaced in late 2022. ($10,000+) Their second one just stopped working; a dodgy board? The part is under warranty but they want almost $1,000 to replace it in the boiler; probably less than 2 hours work. I thought they used to be a good local business with ties to the community but be careful; their tankless boilers are unreliable and they'll try to rip you off when your heat goes out in the winter. So much for standing by their work. I'll never use them again."

CATHAL C on December 2024


Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

55 Lafayette Ave
4.49(
856
)
Approved Pro

Sila Heating, Cooling and Plumbing

55 Lafayette Ave
4.49(
856
)
Approved Pro
Customers say: Super punctual
382 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Did a great job"

Susan S on March 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Did a great job"

Susan S on March 2025


Avatar for Feather & Stone Home Maintenance

Feather & Stone Home Maintenance

5.00(
4
)
Approved Pro

Feather & Stone Home Maintenance

5.00(
4
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
137 local quotes requested

Hello there, my name is Cyrus and I am the owner of Feather & Stone Home Maintenance. At our company we take great pride in our work. From the smallest of tasks, to the largest projects, each home we work in is treated with the utmost care like it is our own. Our expertise is in plumbing repairs and water treatment with over 10 years in the industry. We are passionate about providing access to water and other essential home systems at fair affordable prices. But we don’t stop there, we also provide service for landscaping, painting and maintenance for all of your homes essential systems. Give us a call and let us tackle your list of projects together.

"We will be asking Cyrus to come back for additional work at the house. He and Lewis were prompt, did an excellent job explaining what they were doing or if plans had to change based on what we needed to fix. The work was done well and at a fair price. We will be asking Cyrus and Lewis back. We are very pleased with their work."

Jonathan S on March 2024

Hello there, my name is Cyrus and I am the owner of Feather & Stone Home Maintenance. At our company we take great pride in our work. From the smallest of tasks, to the largest projects, each home we work in is treated with the utmost care like it is our own. Our expertise is in plumbing repairs and water treatment with over 10 years in the industry. We are passionate about providing access to water and other essential home systems at fair affordable prices. But we don’t stop there, we also provide service for landscaping, painting and maintenance for all of your homes essential systems. Give us a call and let us tackle your list of projects together.

"We will be asking Cyrus to come back for additional work at the house. He and Lewis were prompt, did an excellent job explaining what they were doing or if plans had to change based on what we needed to fix. The work was done well and at a fair price. We will be asking Cyrus and Lewis back. We are very pleased with their work."

Jonathan S on March 2024


Avatar for Katonah Construction Co., Inc.

Katonah Construction Co., Inc.

PO Box 604
4.86(
7
)
Approved Pro

Katonah Construction Co., Inc.

PO Box 604
4.86(
7
)
Approved Pro
Customers say: Quality work
13 local quotes requested
55 years of experience

Katonah Construction 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.

"."

Lucio R on February 2024

Katonah Construction 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.

"."

Lucio R on February 2024


Avatar for HP Mechanical

HP Mechanical

79 Alexander St
4.71(
7
)
Approved Pro

HP Mechanical

79 Alexander St
4.71(
7
)
Approved Pro
Customers say: Quick response
36 local quotes requested
7 years of experience

HP Mechanical is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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!

"The upgrade of a new water heater and the removal of the old water heater seem like it was a good job. However, the plumber did too much haggling for more money. I checked the price of this job ahead of time as I always do with any work that needs to be done at my home. Parts and labor, I always need to know up front. I do not like it when any workers come off as greedy and try to insult my intelligence. I hope the work of this young man lasts. However, I would have been able to give him 5 stars, if he had chosen to fully conduct himself as a professional in the end. This plumber was paid $1700. The price I paid was completely within the range of what it cost for parts and labor to upgrade an old water heater, with a new water heater. I wish his well..."

Theresa H on July 2025

HP Mechanical is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have 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!

"The upgrade of a new water heater and the removal of the old water heater seem like it was a good job. However, the plumber did too much haggling for more money. I checked the price of this job ahead of time as I always do with any work that needs to be done at my home. Parts and labor, I always need to know up front. I do not like it when any workers come off as greedy and try to insult my intelligence. I hope the work of this young man lasts. However, I would have been able to give him 5 stars, if he had chosen to fully conduct himself as a professional in the end. This plumber was paid $1700. The price I paid was completely within the range of what it cost for parts and labor to upgrade an old water heater, with a new water heater. I wish his well..."

Theresa H on July 2025

...
Showing 1-10 of 216
Install Boiler questions, answered by experts

Some high-quality steam boilers come with 10-year warranties, but a well-installed, properly maintained model can last at least 20 to 25 years. Learning how to clean a boiler, getting an annual professional service, and keeping up with maintenance and repairs on your heating system are all important for getting the most out of your model. 

The radiators closest in proximity to the boiler heating system will heat up first. Radiators in rooms farther away from the boiler will take longer to heat up and may be the coolest rooms in the house. The radiator unit itself should heat up evenly; otherwise, there may be trapped air inside it.

Always consult your manual for specific pressure numbers. Many expansion tanks come pre-pressurized at a specific PSI range, anywhere from 12 to 40 PSI, designed for a range of home boilers. You should not have to pressurize an expansion tank yourself, only the boiler system. If your system has a tank that needs to be manually pressurized, this is generally a job for professionals and their tools.

You can use a boiler and a furnace, although it’s not common to use both for whole-house heating. For example, your furnace may take care of HVAC heating through your vents, while a boiler powers your floor-based radiant heating in the bathrooms. Mixing and matching like this gives homeowners a variety of heating possibilities.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

The Katonah, NY homeowners’ guide to boiler installation services

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