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There are 32 highly-rated local boiler repair pros.
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Verified Reviews for Boiler Repair pros in Cos Cob, CT
*The Angi rating for Boiler Repair companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Repair needs.
*The HomeAdvisor rating for Boiler Repair companies in Cos Cob, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Repair needs.
Last update on November 30, 2025
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Drain Away Sewer Service Inc
Drain Away Sewer Service Inc
At Drain Away Sewer Service, Inc., we put our customers needs first! We offer a range of drain services and we know that our customer's are the backbone of our success. Response times are quick through our 24-hour emergency service and we pride ourselves on providing competitive, up-front costs. Whether you take advantage of our maintenance and service contracts for savings, or you use us for one-time emergency services, Drain Away Sewer Service, Inc. will deliver on professional, reliable and quality work. Drain Away Sewer Service, Inc. provides both residential and commercial drain cleaning services 24 hours a day, 7 days a week and 365 days per year. Offering over 10 years of experience in the drain cleaning business, our qualified staff is prepared to handle everything from a clogged toilet to main sewer services. We are centrally located to service both Westchester and Fairfield Counties.
"Richard from Drain Away service came out the next day and fixed the clogged drain. He was also very helpful with getting Servpro out to do clean up. Richard provided full and efficient services. Very pleasant and reasonably priced. I would definitely recommend Drain Away for any plumbing issues and would use them again if needed."
Paula A on February 2025
At Drain Away Sewer Service, Inc., we put our customers needs first! We offer a range of drain services and we know that our customer's are the backbone of our success. Response times are quick through our 24-hour emergency service and we pride ourselves on providing competitive, up-front costs. Whether you take advantage of our maintenance and service contracts for savings, or you use us for one-time emergency services, Drain Away Sewer Service, Inc. will deliver on professional, reliable and quality work. Drain Away Sewer Service, Inc. provides both residential and commercial drain cleaning services 24 hours a day, 7 days a week and 365 days per year. Offering over 10 years of experience in the drain cleaning business, our qualified staff is prepared to handle everything from a clogged toilet to main sewer services. We are centrally located to service both Westchester and Fairfield Counties.
"Richard from Drain Away service came out the next day and fixed the clogged drain. He was also very helpful with getting Servpro out to do clean up. Richard provided full and efficient services. Very pleasant and reasonably priced. I would definitely recommend Drain Away for any plumbing issues and would use them again if needed."
Paula A on February 2025

J Thurston Fuel
J Thurston Fuel
J. Thurston Fuel is a full-service fuel delivery company owned and operated by Jim Thurston and Jay Carter. Established in 1998, we service customers in New Haven and Fairfield counties and is one of the premier home heating oil distributors in the state. J. Thurston Fuel is devoted to satisfying the needs and wants of our customers. Our services range from heating oil & propane delivery, new equipment installation and equipment repairs. We are committed to providing the highest quality fast, efficient service, competitively priced to all our customers we serve. From our delivery drivers, to our office staff and service technicians, our employees are friendly, knowledgeable ready to assist you in saving energy and money regarding all your home services needs.
"Very accommodating to my schedule. Everything neatly done . The final copper work looks like a piece of art. These people know what they are doing make no mistake about that. If you want the best hire this company. They are very knowledgeable and answer all of your questions. They are very easy to work with every step of the way for your project"
Carole O on September 2025
J. Thurston Fuel is a full-service fuel delivery company owned and operated by Jim Thurston and Jay Carter. Established in 1998, we service customers in New Haven and Fairfield counties and is one of the premier home heating oil distributors in the state. J. Thurston Fuel is devoted to satisfying the needs and wants of our customers. Our services range from heating oil & propane delivery, new equipment installation and equipment repairs. We are committed to providing the highest quality fast, efficient service, competitively priced to all our customers we serve. From our delivery drivers, to our office staff and service technicians, our employees are friendly, knowledgeable ready to assist you in saving energy and money regarding all your home services needs.
"Very accommodating to my schedule. Everything neatly done . The final copper work looks like a piece of art. These people know what they are doing make no mistake about that. If you want the best hire this company. They are very knowledgeable and answer all of your questions. They are very easy to work with every step of the way for your project"
Carole O on September 2025
Astacio Plumbing & Heating
Astacio Plumbing & Heating
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

Sila Heating, Cooling and Plumbing
Sila Heating, Cooling and Plumbing
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

HammerTime Construction Group
HammerTime Construction Group
We’re a locally owned and operated company that values honesty and integrity and treats your home as our own. We offer various customizable General Contractor Home Improvement services for each project. We specialize in additions, kitchen, and bathroom remodels and provide a wide range of expertise for various other projects. We pride ourselves on the quality of our work and our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!
"It went well. They completed the job in three days."
Ingrid B on August 2025
We’re a locally owned and operated company that values honesty and integrity and treats your home as our own. We offer various customizable General Contractor Home Improvement services for each project. We specialize in additions, kitchen, and bathroom remodels and provide a wide range of expertise for various other projects. We pride ourselves on the quality of our work and our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!
"It went well. They completed the job in three days."
Ingrid B on August 2025

Antonjo Construction Inc.
Antonjo Construction Inc.
Antonjo Construction Inc: Your trusted remodeling experts in the Tri-State area. Specializing in kitchen and bathroom renovations, we bring your dream home to life. Contact us today for top-notch craftsmanship and exceptional customer service.
"It went great. No regrets. They did an excellent job, from the initial quote to the final product, which looks great, and matches the rendering he showed us after he surveyed the space, but before he secured the contract. They walked us through the process, delivered in a timely manner, and they made sure the job was complete. I would recommend them."
Robert A on May 2025
Antonjo Construction Inc: Your trusted remodeling experts in the Tri-State area. Specializing in kitchen and bathroom renovations, we bring your dream home to life. Contact us today for top-notch craftsmanship and exceptional customer service.
"It went great. No regrets. They did an excellent job, from the initial quote to the final product, which looks great, and matches the rendering he showed us after he surveyed the space, but before he secured the contract. They walked us through the process, delivered in a timely manner, and they made sure the job was complete. I would recommend them."
Robert A on May 2025
Unique plumbing LLC
Unique plumbing LLC
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Very professional and detailed. Affordable and kind as well. Would highly recommend for the future."
Albert Z on November 2024
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Very professional and detailed. Affordable and kind as well. Would highly recommend for the future."
Albert Z on November 2024

BHI Builder & Home Improvement LLC
BHI Builder & Home Improvement LLC
Builder Home Improvement LLC 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. 20 years of 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.
"They were great, quick and creative."
Gustavo X on July 2022
Builder Home Improvement LLC 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. 20 years of 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.
"They were great, quick and creative."
Gustavo X on July 2022

Sam's Rooter Service LLC
Sam's Rooter Service LLC
We pride our company on Reliability, Great Communication, Integrity, and Quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business!Test
"Did a good job , very professional"
Michael P on April 2025
We pride our company on Reliability, Great Communication, Integrity, and Quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business!Test
"Did a good job , very professional"
Michael P on April 2025

E and R Mechanical
E and R Mechanical
We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business.
"Installed a new Rheem gas water heater right away. Great price. Quick -efficient service. I will be using them for a new boiler in a few months thank you!"
Renee D on August 2025
We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business.
"Installed a new Rheem gas water heater right away. Great price. Quick -efficient service. I will be using them for a new boiler in a few months thank you!"
Renee D on August 2025
The Cos Cob, CT homeowners’ guide to boiler repairs
From average costs to expert advice, get all the answers you need to get your job done.

Springing for HVAC maintenance costs may seem like an extra—and easy-to-ignore—item on your checklist, but it will save you money in the long run.

What you’ll pay for furnace repairs depends on many factors, including what parts are malfunctioning, where you live, and even the time of day. Here’s a breakdown of what can go wrong with your furnace and the cost to fix those issues.

When your HVAC system is acting up, it could be the blower motor to blame. See how much blower motor replacement costs and what impacts the price here.

Save energy and prolong the life of your heating pump with proper maintenance and preventative care. An annual service will keep things running smoothly.

Are you considering adding a whole-house humidifier to your home? Keep reading to learn the pros and cons of a whole-house humidifier.

An AC coil is an expensive part to replace and it won’t always be the right investment. Learn whether to replace a coil or the entire system.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"






