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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon281
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Knox

Cleveland Mechanical Services

5.00(
2
)
Approved Pro

Cleveland Mechanical Services

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Cleveland Mechanical Services 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.

"Responsive, trustworthy, professional and Knowledgeable."

Ali B on May 2021

Cleveland Mechanical Services 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.

"Responsive, trustworthy, professional and Knowledgeable."

Ali B on May 2021


Avatar for Grasshopper Heating & Cooling

Grasshopper Heating & Cooling

4.76(
110
)
Approved Pro

Grasshopper Heating & Cooling

4.76(
110
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
85 local quotes requested

Thank you for choosing Grasshopper Heating & Cooling! Our name accurately reflects some of our values: forward moving, quick to respond, and green! This has further energized our mission: To Provide Sustainable Efficient Solutions Focused on Advancing Comfort & Cultivating Community. We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in heating and furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results & look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Grasshopper Heating & Cooling tech - Bryan Blodgett (18th Nov.) came to tune up our HVAC system. He made a hole in the system and stated that the system needs to be replaced as it is "pass it's time." the rest of conversation was just lots of pressure to buy a new system. Even though Bryan stated that he slept just two hours he kept talking and talking and mostly was about how great this company is. He even got his supervisor to come on line and try to pressure us to buy a new system about $17,000 stating that repairs would cost us about $6000. We didn't get either. During the time that Bryan was here he said that there are different things that he is checking and that he will send us a report of what he found - WE RECEIVED NOTHING!!!! I called and called asking for that report and still have NOTHING. I hate dishonest people and that is the reason that I am giving this business one star. Would never hire them again. "

Timothy J on December 2025

Thank you for choosing Grasshopper Heating & Cooling! Our name accurately reflects some of our values: forward moving, quick to respond, and green! This has further energized our mission: To Provide Sustainable Efficient Solutions Focused on Advancing Comfort & Cultivating Community. We're dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in heating and furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results & look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Grasshopper Heating & Cooling tech - Bryan Blodgett (18th Nov.) came to tune up our HVAC system. He made a hole in the system and stated that the system needs to be replaced as it is "pass it's time." the rest of conversation was just lots of pressure to buy a new system. Even though Bryan stated that he slept just two hours he kept talking and talking and mostly was about how great this company is. He even got his supervisor to come on line and try to pressure us to buy a new system about $17,000 stating that repairs would cost us about $6000. We didn't get either. During the time that Bryan was here he said that there are different things that he is checking and that he will send us a report of what he found - WE RECEIVED NOTHING!!!! I called and called asking for that report and still have NOTHING. I hate dishonest people and that is the reason that I am giving this business one star. Would never hire them again. "

Timothy J on December 2025


Avatar for Maddalone Heating & Cooling

Maddalone Heating & Cooling

New on AngiNew on Angi
Approved Pro

Maddalone Heating & Cooling

New on AngiNew on Angi
Approved Pro
25 local quotes requested
Free onsite estimate

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!


Matts Fix It All LLC

5.00(
13
)
Approved Pro

Matts Fix It All LLC

5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
234 local quotes requested

Looking for reliable home services in Albany? Look no further than Matts Fix It All LLC. With over 20 years of experience, I specialize in all types of handyman work. From small household issues to larger projects, I.ve got you covered. Contact me today!

"Matt did an excellent job! I’m very pleased with the quality of his work — everything was done right, efficiently, and with great attention to detail. He was professional, courteous, and made sure I was satisfied before finishing. I would definitely hire him again and highly recommend his services."

Kat C on November 2025

Looking for reliable home services in Albany? Look no further than Matts Fix It All LLC. With over 20 years of experience, I specialize in all types of handyman work. From small household issues to larger projects, I.ve got you covered. Contact me today!

"Matt did an excellent job! I’m very pleased with the quality of his work — everything was done right, efficiently, and with great attention to detail. He was professional, courteous, and made sure I was satisfied before finishing. I would definitely hire him again and highly recommend his services."

Kat C on November 2025


Avatar for Adams Heating & Cooling Inc

Adams Heating & Cooling Inc

4.78(
205
)
Approved Pro

Adams Heating & Cooling Inc

4.78(
205
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
106 local quotes requested

Here at Adams Heating & Cooling, we believe in giving you the best quality product with the best quality service. Whether you're looking for a new furnace, repairs to that rattling AC, or ridding your air ducts of germs and debris, we've got you covered with cost-effective, energy-efficient solutions. Because we're family-owned and operated, Adams is dedicated to a different kind of doing business: Family thinking: We want to know how we can help you. Whether you're looking to repair or replace, a highly trained technician will talk with you about what you need for your home or office to find a real solution that lasts. Nothing short-term and nothing you don't need. Know what you're getting: At Adams, we want our customers to know exactly what they're buying. That's why we have an Education Room at our centrally located warehouse, where you can see and hear for yourself the difference our quality heating and cooling products will make. The service you deserve: Adams Heating & Cooling offers the best HVAC Services in the business. We offer service plans for a single visit, annual diagnostic, or seasonal, six-part inspections. We can tailor any plan to meet your needs and with our fully stocked warehouse and workshop, we can promise you'll never need to wait on a part. Peace of mind: Being part of a community means being there when your customers need you. That's why Adams has a 24-hour emergency line, so our customers know they can reach a real, live person, anytime, day or night.

"Great! Adams was very responsive to our problem and their service was fast, friendly and efficient all around."

Bruce W on November 2025

Here at Adams Heating & Cooling, we believe in giving you the best quality product with the best quality service. Whether you're looking for a new furnace, repairs to that rattling AC, or ridding your air ducts of germs and debris, we've got you covered with cost-effective, energy-efficient solutions. Because we're family-owned and operated, Adams is dedicated to a different kind of doing business: Family thinking: We want to know how we can help you. Whether you're looking to repair or replace, a highly trained technician will talk with you about what you need for your home or office to find a real solution that lasts. Nothing short-term and nothing you don't need. Know what you're getting: At Adams, we want our customers to know exactly what they're buying. That's why we have an Education Room at our centrally located warehouse, where you can see and hear for yourself the difference our quality heating and cooling products will make. The service you deserve: Adams Heating & Cooling offers the best HVAC Services in the business. We offer service plans for a single visit, annual diagnostic, or seasonal, six-part inspections. We can tailor any plan to meet your needs and with our fully stocked warehouse and workshop, we can promise you'll never need to wait on a part. Peace of mind: Being part of a community means being there when your customers need you. That's why Adams has a 24-hour emergency line, so our customers know they can reach a real, live person, anytime, day or night.

"Great! Adams was very responsive to our problem and their service was fast, friendly and efficient all around."

Bruce W on November 2025


Avatar for One Peace, LLC

One Peace, LLC

4.86(
7
)
Approved Pro

One Peace, LLC

4.86(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
159 local quotes requested

At One Peace LLC, we understand that your home is more than just a place—it's a sanctuary. Specializing in providing reliable and high-quality repair services, we are dedicated to helping homeowners maintain the beauty and functionality of their homes. Our team of skilled professionals brings years of experience, ensuring that every project is completed with precision and care. Whether it's a small repair or a major renovation, we approach every task with the same commitment to excellence. Why Choose One Peace LLC? Expertise You Can Trust: With a proven track record in home repair services, we deliver solutions that stand the test of time. Customer-Centric Approach: Your satisfaction is our priority. We work closely with you to understand your needs and exceed your expectations. Transparent and Fair Pricing: We believe in honest and upfront pricing, so you know exactly what to expect. Prompt and Reliable Service: We value your time and ensure timely completion of all projects without compromising on quality. Join the many satisfied homeowners who have experienced the peace of mind that comes with choosing One Peace LLC. Let us be your partner in creating a home that reflects your style and meets your needs. Contact us today for a consultation and discover how we can bring your home improvement vision to life!

"Joe arrived on time, was courteous and knowledgeable. Got the job done well. Couldn't ask for a better experience. Would definitely hire again."

Alexis P on October 2025

At One Peace LLC, we understand that your home is more than just a place—it's a sanctuary. Specializing in providing reliable and high-quality repair services, we are dedicated to helping homeowners maintain the beauty and functionality of their homes. Our team of skilled professionals brings years of experience, ensuring that every project is completed with precision and care. Whether it's a small repair or a major renovation, we approach every task with the same commitment to excellence. Why Choose One Peace LLC? Expertise You Can Trust: With a proven track record in home repair services, we deliver solutions that stand the test of time. Customer-Centric Approach: Your satisfaction is our priority. We work closely with you to understand your needs and exceed your expectations. Transparent and Fair Pricing: We believe in honest and upfront pricing, so you know exactly what to expect. Prompt and Reliable Service: We value your time and ensure timely completion of all projects without compromising on quality. Join the many satisfied homeowners who have experienced the peace of mind that comes with choosing One Peace LLC. Let us be your partner in creating a home that reflects your style and meets your needs. Contact us today for a consultation and discover how we can bring your home improvement vision to life!

"Joe arrived on time, was courteous and knowledgeable. Got the job done well. Couldn't ask for a better experience. Would definitely hire again."

Alexis P on October 2025


"Errol and his son arrived on time, repaired my screen door as good as new. They were so professional and skilled, the whole process was a pleasure. I intend to use Reid services again and recommend them to my friends. "

Marcia K on November 2025

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Errol and his son arrived on time, repaired my screen door as good as new. They were so professional and skilled, the whole process was a pleasure. I intend to use Reid services again and recommend them to my friends. "

Marcia K on November 2025


"The process of replacing my furnace during the cold winter was very pleasant Jeremy started the job immediately and worked all night to make sure we had heat I highly recommend him"

Rob L on January 2020

Full service veteran owed heating and cooling company. We are ready to fulfill all of your needs to include increasing your energy efficiency of your home. 10% discount for veterans, active duty, and first responders.

"The process of replacing my furnace during the cold winter was very pleasant Jeremy started the job immediately and worked all night to make sure we had heat I highly recommend him"

Rob L on January 2020


Avatar for Sentri Homes

Sentri Homes

No reviews yet

Sentri Homes

No reviews yet
721 local quotes requested

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for Allied Maintenance Solutions LLC

Allied Maintenance Solutions LLC

5.00(
15
)

Allied Maintenance Solutions LLC

5.00(
15
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

 We at Allied Maintenance strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied. Our team of skilled handymen provides quality workmanship and excellent customer service to ensure your home is well-maintained and fully functional. If you're looking for a company that provides maintenance services, outstanding service, and beautiful outcomes, then look no further than Allied Maintenance Solutions.  We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work.

"Installed a new sliding patio door. The job went very well. It was completed quickly at a fair price. Very happy with the work"

HOWARD T on October 2024

 We at Allied Maintenance strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied. Our team of skilled handymen provides quality workmanship and excellent customer service to ensure your home is well-maintained and fully functional. If you're looking for a company that provides maintenance services, outstanding service, and beautiful outcomes, then look no further than Allied Maintenance Solutions.  We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work.

"Installed a new sliding patio door. The job went very well. It was completed quickly at a fair price. Very happy with the work"

HOWARD T on October 2024

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FAQs for heating and air conditioning service projects in Knox, NY

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The Knox, NY homeowners’ guide to heating and air conditioning services

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