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  • Average homeowner rating star icon4.4
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  • Verified reviews icon52
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Keystone

Avatar for Sanders & Johnson Inc

Sanders & Johnson Inc

7100 N Broadway
4.77(
129
)
Approved Pro

Sanders & Johnson Inc

7100 N Broadway
4.77(
129
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
48 years of experience

Hometown Heating and Air Conditioning Here at Sanders & Johnson, Inc. Heating and Air Conditioning we have been providing Denver with heating and air conditioning services since 1977. We offer a full range of heating and air conditioning services from installations to repairs. Our team here at Sanders & Johnson like to live by the motto of honest work for honest prices, and we will never try to pressure you into any expensive products or services you don’t need. Interested in learning more about what Sanders & Johnson, Inc. Heating and Air Conditioning can do for you? Give us a call today at (720) 547-3828 and speak with one of our highly skilled HVAC technicians. Why Choose Sanders & Johnson At Sanders & Johnson we have 47 years of experience managing heating and air conditioning problems of all sizes. It doesn’t matter if you simply need to get a filter cleaned out or if you want to install a brand new high-efficiency furnace and smart thermostat, we can do it all. Our installation estimates have always been and will always be free. As one of the few Denver HVAC companies still owned and operated by individuals and not investors, Sanders & Johnson knows just how important each and every customer is. Without you the customer we wouldn’t be able to do what we love, because of this we guarantee that we’ll never try to pressure you into expensive parts or services that you don’t need. Give us a call today for your free installation estimate at 303-422-6606. An HVAC contractor in Denver you can count on is a quick phone call away!

"We had S&J install a new mini-split ductless system on a floor that we couldn't get cool. We also had them analyze our current system in our townhouse, which required an upgraded cold air return duct due to a bad design by the builders. Mitch was our representative, and he did a fantastic job analyzing what we needed. Mitch provided a better, more effective solution than we had heard from any of the other vendors. Additionally, he got us a great price (after rebates) on a system that was better than the other systems we had been previously quoted. The mini-split installation was a challenge, but the installers did a great job. They took their time to create an installation that looks and operates great! The cold air return duct upgrade brought our system static pressure from 0.75 inH2O down to 0.5 inH2O total, which is nearly perfect. Our air handler is running quieter now, and we are getting more airflow through our system. I would give Sanders & Johnson 10 stars if I could!"

Alan D on August 2025

Hometown Heating and Air Conditioning Here at Sanders & Johnson, Inc. Heating and Air Conditioning we have been providing Denver with heating and air conditioning services since 1977. We offer a full range of heating and air conditioning services from installations to repairs. Our team here at Sanders & Johnson like to live by the motto of honest work for honest prices, and we will never try to pressure you into any expensive products or services you don’t need. Interested in learning more about what Sanders & Johnson, Inc. Heating and Air Conditioning can do for you? Give us a call today at (720) 547-3828 and speak with one of our highly skilled HVAC technicians. Why Choose Sanders & Johnson At Sanders & Johnson we have 47 years of experience managing heating and air conditioning problems of all sizes. It doesn’t matter if you simply need to get a filter cleaned out or if you want to install a brand new high-efficiency furnace and smart thermostat, we can do it all. Our installation estimates have always been and will always be free. As one of the few Denver HVAC companies still owned and operated by individuals and not investors, Sanders & Johnson knows just how important each and every customer is. Without you the customer we wouldn’t be able to do what we love, because of this we guarantee that we’ll never try to pressure you into expensive parts or services that you don’t need. Give us a call today for your free installation estimate at 303-422-6606. An HVAC contractor in Denver you can count on is a quick phone call away!

"We had S&J install a new mini-split ductless system on a floor that we couldn't get cool. We also had them analyze our current system in our townhouse, which required an upgraded cold air return duct due to a bad design by the builders. Mitch was our representative, and he did a fantastic job analyzing what we needed. Mitch provided a better, more effective solution than we had heard from any of the other vendors. Additionally, he got us a great price (after rebates) on a system that was better than the other systems we had been previously quoted. The mini-split installation was a challenge, but the installers did a great job. They took their time to create an installation that looks and operates great! The cold air return duct upgrade brought our system static pressure from 0.75 inH2O down to 0.5 inH2O total, which is nearly perfect. Our air handler is running quieter now, and we are getting more airflow through our system. I would give Sanders & Johnson 10 stars if I could!"

Alan D on August 2025


Avatar for KRS Mechanical Solutions

KRS Mechanical Solutions

19773 US HWY 24 Mountview Village
5.00(
2
)
Approved Pro

KRS Mechanical Solutions

19773 US HWY 24 Mountview Village
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested

Colorado Native,locally owned With more than 20 years experience at forced air installs, service, Air conditioning install and service . split and ducted Systems. Heating boilers install , service and repair. humidification install service and repairs. Preventive maintenance. Please feel free to reach out at any time!

"I he was very professional and on time. I had a quote from another contractor to replace a zone valve and expansion tank that I thought was excessive. He assessed my furnace and zone valve. He found that it wasn’t wired properly and fixed the issue within minutes."

Justin H on October 2024

Colorado Native,locally owned With more than 20 years experience at forced air installs, service, Air conditioning install and service . split and ducted Systems. Heating boilers install , service and repair. humidification install service and repairs. Preventive maintenance. Please feel free to reach out at any time!

"I he was very professional and on time. I had a quote from another contractor to replace a zone valve and expansion tank that I thought was excessive. He assessed my furnace and zone valve. He found that it wasn’t wired properly and fixed the issue within minutes."

Justin H on October 2024


Avatar for Summit WaterWorks, LLC

Summit WaterWorks, LLC

358 Blue River Pkwy Unit E-303, #2301
4.88(
4
)
Approved Pro

Summit WaterWorks, LLC

358 Blue River Pkwy Unit E-303, #2301
4.88(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

Summit WaterWorks LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Nice guys to work with!"

John B on May 2023

Summit WaterWorks LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Nice guys to work with!"

John B on May 2023


"Alex was excellent - performed work on Christmas eve in snowstorm! Professional service at fair price. Highly recommend!"

Casey P on December 2021

We do remodels from demo to finish product. High quality work that you will cherish forever.

"Alex was excellent - performed work on Christmas eve in snowstorm! Professional service at fair price. Highly recommend!"

Casey P on December 2021


Avatar for RES Electric

RES Electric

1613 Mount Lincoln Drive West
4.84(
25
)
Approved Pro

RES Electric

1613 Mount Lincoln Drive West
4.84(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
23 local quotes requested

RES Electric 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.

"Ralph came to replace a faulty GFCI. He was extremely professional and courteous, and replaced the unit in a timely fashion I would highly recommend this company"

Geoff M on March 2025

RES Electric 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.

"Ralph came to replace a faulty GFCI. He was extremely professional and courteous, and replaced the unit in a timely fashion I would highly recommend this company"

Geoff M on March 2025


Nesbitts Plumbing

560 County Rd 112
5.00(
9
)
Approved Pro

Nesbitts Plumbing

560 County Rd 112
5.00(
9
)
Approved Pro
Super Service Award
Customers say: Quick response
6 years of experience

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!

"One of the best guys I’ve met. Was extremely helpful and helped solve my issues fast. Couldn’t recommend him enough. "

Dillon K on February 2025

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!

"One of the best guys I’ve met. Was extremely helpful and helped solve my issues fast. Couldn’t recommend him enough. "

Dillon K on February 2025


Avatar for Benjamin Franklin Plumbing

Benjamin Franklin Plumbing

P.O. Box 939
4.75(
62
)
Approved Pro

Benjamin Franklin Plumbing

P.O. Box 939
4.75(
62
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
19 local quotes requested

Benjamin Franklin Plumbing specializes in plumbing and heating services in Colorado. We are a locally owned company with over 25 years of experience as a Colorado plumbing and heating contractor. We provide your home or business with professional workmanship and can handle any project in the central Colorado mountain region. Give us a call today.

""

Eric P on June 2025

Benjamin Franklin Plumbing specializes in plumbing and heating services in Colorado. We are a locally owned company with over 25 years of experience as a Colorado plumbing and heating contractor. We provide your home or business with professional workmanship and can handle any project in the central Colorado mountain region. Give us a call today.

""

Eric P on June 2025


Avatar for American Plumbing Heating Cooling & Electrical, LLC

American Plumbing Heating Cooling & Electrical, LLC

5 Murray Road, Suite C3
3.92(
6
)
Approved Pro

American Plumbing Heating Cooling & Electrical, LLC

5 Murray Road, Suite C3
3.92(
6
)
Approved Pro
Customers say: Quality work
133 local quotes requested
32 years of experience

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!

"They charged me almost $500 for a job that took them less than 30 minutes. They're explanation of the job was not detailed when I made my initial phone call and they charge $75 to drive there $150 to tell you what is wrong and $250 to do the job. There is no hourly rate, but they say they have one. They don't tell you that each job has its own price."

Raoul P on September 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!

"They charged me almost $500 for a job that took them less than 30 minutes. They're explanation of the job was not detailed when I made my initial phone call and they charge $75 to drive there $150 to tell you what is wrong and $250 to do the job. There is no hourly rate, but they say they have one. They don't tell you that each job has its own price."

Raoul P on September 2025


O & A construction specialties llc

8935 Colorado Boulevard
No reviews yet

O & A construction specialties llc

8935 Colorado Boulevard
No reviews yet
4 years of experience

At O & A construction specialties we specialize in any and all of your handymen needs,we also offer 8 years of construction experience and crews for various trade tasks like interior and exterior framing,drywall,roofing,carpentry,electrical, plumbing,painting,flooring and all your handyman needs and more

At O & A construction specialties we specialize in any and all of your handymen needs,we also offer 8 years of construction experience and crews for various trade tasks like interior and exterior framing,drywall,roofing,carpentry,electrical, plumbing,painting,flooring and all your handyman needs and more


Skylines To Pines Handyman LLC

No reviews yet

Skylines To Pines Handyman LLC

No reviews yet
2 years of experience

Are you faced with a random task that you're just not sure how to handle? Possibly replacing a kitchen faucet? Or maybe you're air conditioner is no longer blowing cold? Skylines To Pines Handyman provides a wide range of residential and commercial handyman services in Denver and surrounding areas including the mountain regions. Ask about our home or business maintenance subscription package!

Are you faced with a random task that you're just not sure how to handle? Possibly replacing a kitchen faucet? Or maybe you're air conditioner is no longer blowing cold? Skylines To Pines Handyman provides a wide range of residential and commercial handyman services in Denver and surrounding areas including the mountain regions. Ask about our home or business maintenance subscription package!

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Heating and Air Conditioning questions, answered by experts

The size window AC you need depends on the BTU and the size of the room you’re cooling. For a room with 8-foot ceilings, look for about 20 BTU per square foot of the room. For example, a 12-by-12-foot room should have an air conditioner with 2,880 BTU. You can buy something slightly more powerful, but don’t overshoot the BTU for a small room, or you’ll waste energy and have higher bills.

Your HVAC manufacturer will give you instructions on how often you should service your system. Have your unit professionally serviced at least once a year when in doubt. 

Heat pump systems are different because they provide heating and cooling solutions for your home. In this case, you should have it serviced at least twice a year.

You might notice that your air conditioner isn’t running as effectively as it once did. Specifically, your AC unit could take longer to cool your home, or it might struggle to remove humidity from the air. Higher utility bills and hissing sounds coming out of your AC could also indicate a leak.

No. Your furnace does not run your air conditioner. Both units use the same system of ductwork to move conditioned air throughout your home, but you can have a furnace without having an air conditioner and vice versa. Furnaces are only for heating your home. You can buy a system that does both, however, like a split system or a heat pump (yes, heat pumps cool, too).

A blocked return air vent can cause your HVAC system to work much harder and, therefore, less efficiently. The result is higher utility bills and poorer air quality. A blocked return air vent can also cause unpleasant dust, dander, and odors to linger in your home’s air.

The Keystone, CO 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.

What do you need done? We’ll find top pros.
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