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Window a/c unit installers in Castle Rock

Cornell's Brother
8801 W Belleview Ave G203
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
Cornell's Brother
8801 W Belleview Ave G203
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
10 years of experience
Free onsite estimate

Cornell's Brothers is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Lakewood, CO and surrounding areas. There is no job too big, or too small for our team. Call today...

Cornell's Brothers is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Lakewood, CO and surrounding areas. There is no job too big, or too small for our team. Call today...


Avatar for 5280 Heating, Cooling & Refrigeration, LLC
5280 Heating, Cooling & Refrigeration, LLC
5790 W Louisiana Ave
5.00(
5
)
Approved Pro
5280 Heating, Cooling & Refrigeration, LLC
5790 W Louisiana Ave
5.00(
5
)
Approved Pro
8 years of experience
Free onsite estimate

At 5280 Cooling, Heating & Refrigeration, we specialize in fast, affordable, and reliable HVAC repairs, installations, and tune-ups across Lakewood, Westminster, and Aurora, Colorado. Whether your system needs a quick fix, a full replacement, or a seasonal check-up, our licensed HVAC technicians are here to keep your home or business comfortable year-round.​ 5280 Cooling, Heating & Refrigeration is a family-owned and operated company of Colorado natives. We have been doing business In Colorado since 2008, and have over 4 decades of experience in the trade. Our company has a Master Mechanical license, as well as two supervisors’ licenses, and we offer a full spectrum of services. From Commercial and Residential HVAC services to Commercial Refrigeration, we can handle it all. We take pride in our work and strive to make sure that every job, no matter how big or small, is done right the first time.

"This team of guys are some of the best in Town. Time responsive, clean, and appreciative to help. I?ve used this team for several years with no complaints!!"

Brian J on May 2025

At 5280 Cooling, Heating & Refrigeration, we specialize in fast, affordable, and reliable HVAC repairs, installations, and tune-ups across Lakewood, Westminster, and Aurora, Colorado. Whether your system needs a quick fix, a full replacement, or a seasonal check-up, our licensed HVAC technicians are here to keep your home or business comfortable year-round.​ 5280 Cooling, Heating & Refrigeration is a family-owned and operated company of Colorado natives. We have been doing business In Colorado since 2008, and have over 4 decades of experience in the trade. Our company has a Master Mechanical license, as well as two supervisors’ licenses, and we offer a full spectrum of services. From Commercial and Residential HVAC services to Commercial Refrigeration, we can handle it all. We take pride in our work and strive to make sure that every job, no matter how big or small, is done right the first time.

"This team of guys are some of the best in Town. Time responsive, clean, and appreciative to help. I?ve used this team for several years with no complaints!!"

Brian J on May 2025


Avatar for Wild Water Plumbing Heating and Cooling
Wild Water Plumbing Heating and Cooling
7731 Dry Willow Way
5.00(
12
)
Approved Pro
Wild Water Plumbing Heating and Cooling
7731 Dry Willow Way
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1248 local quotes requested

At Wild Water Plumbing, Heating and Cooling we provide free estimates with no trip fees. We're a locally owned small business, proudly staffed by fully licensed technicians. We look forward to serving you.

"Came for an estimate and had everything on vehicle to get the job done and went ahead and completed it. Quick and easy!"

Ryan U on June 2025

At Wild Water Plumbing, Heating and Cooling we provide free estimates with no trip fees. We're a locally owned small business, proudly staffed by fully licensed technicians. We look forward to serving you.

"Came for an estimate and had everything on vehicle to get the job done and went ahead and completed it. Quick and easy!"

Ryan U on June 2025


Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
9800 Mt Pyramid Ct #4040
4.93(
30
)
Approved Pro
Behold Heating & Cooling Services
9800 Mt Pyramid Ct #4040
4.93(
30
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2648 local quotes requested

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"After being ghosted by several AC companies we were thrilled to have Behold answer their phones, make and keep appointments, and show up for the install. Our 1970s house is blazing hot upstairs in the summer, and after considering several options we settled on a mini split. It was installed today and our bedroom is delightfully cool. Both guys on the job were professional and courteous. They kept us appraised of what they were doing and showed us how everything worked at the end of the day. They have also promised to file all applicable rebates."

Lisa T on July 2025

Behold the Difference! Every day we are invited into our customer’s homes. Into their safe place and sanctuary. Quite often this is in the midst of a concern or issue that needs to be fixed! With an extensive background that spans well beyond just the trades, we love to be different. In addition to decades of industry experience, we bring some secret sauce - we love to take all the time needed to help, to make sure you are comfortable, and to provide amazing solutions. Come BEHOLD the difference! "Unfortunately we do not service or intall swamp or evaporative coolers".

"After being ghosted by several AC companies we were thrilled to have Behold answer their phones, make and keep appointments, and show up for the install. Our 1970s house is blazing hot upstairs in the summer, and after considering several options we settled on a mini split. It was installed today and our bedroom is delightfully cool. Both guys on the job were professional and courteous. They kept us appraised of what they were doing and showed us how everything worked at the end of the day. They have also promised to file all applicable rebates."

Lisa T on July 2025


Avatar for Peak Home Performance
Peak Home Performance
1125 N. Newport Road
4.08(
13
)
Approved Pro
Peak Home Performance
1125 N. Newport Road
4.08(
13
)
Approved Pro
Customers say: Quality work
1072 local quotes requested
6 years of experience

Since day one, we’ve been dedicated to providing our community with a level of service in HVAC that just doesn’t currently exist. Over 30 years of experience. Their former experience of operating a successful HVAC company led to them opening Peak Home Performance with a passion and dedication unseen in our area.

"They were professional and helped us solve the problem."

Joy and Matt R on January 2025

Since day one, we’ve been dedicated to providing our community with a level of service in HVAC that just doesn’t currently exist. Over 30 years of experience. Their former experience of operating a successful HVAC company led to them opening Peak Home Performance with a passion and dedication unseen in our area.

"They were professional and helped us solve the problem."

Joy and Matt R on January 2025


Avatar for Quality West Heating & Cooling
Quality West Heating & Cooling
5306 S. Bannock St
4.69(
322
)
Approved Pro
Quality West Heating & Cooling
5306 S. Bannock St
4.69(
322
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1088 local quotes requested

9 Year SUPER SERVICE AWARD winner on Angie's List! *** Heat Pumps, Boilers, Mini Split Ductless Systems, Furnace, Air Conditioning, Humidification, Air Quality*** They are Xcel Energy Approved Contractors and participate in Xcel Energy Rebates and Denver Climate Action Rebates. Upfront pricing, clean and friendly technicians, an A+ Rating from the Better Business Bureau! Quality West is well known for their multitude of "A" ratings for Furnace, Air Conditioners, and Boiler system replacements and repair. Call to schedule a FREE ESTIMATE on a new system! Financing programs are available, and options include 12 Months No Payments/No Interest - Same As Cash, or Low Monthly Payment Plans (with approved credit). Locally owned and operated since 2002. The entire staff at Quality West looks forward to being of service to you and your family!

"Great customer service. Responsive to contact. An efficient, clean, courteous, and knowledgeable work crew removed my old furnace and AC condenser then installed a new Bosch gas furnace and heat pump combination with a new Honeywell thermostat and sensors, integrated the control and plumbing of my Aprilaire 600 humidifier. Electrician Installed a new exterior electric power outlet on siding of house next to new heat p***. All this work was done in less than 8 hrs."

Allan W on August 2023

9 Year SUPER SERVICE AWARD winner on Angie's List! *** Heat Pumps, Boilers, Mini Split Ductless Systems, Furnace, Air Conditioning, Humidification, Air Quality*** They are Xcel Energy Approved Contractors and participate in Xcel Energy Rebates and Denver Climate Action Rebates. Upfront pricing, clean and friendly technicians, an A+ Rating from the Better Business Bureau! Quality West is well known for their multitude of "A" ratings for Furnace, Air Conditioners, and Boiler system replacements and repair. Call to schedule a FREE ESTIMATE on a new system! Financing programs are available, and options include 12 Months No Payments/No Interest - Same As Cash, or Low Monthly Payment Plans (with approved credit). Locally owned and operated since 2002. The entire staff at Quality West looks forward to being of service to you and your family!

"Great customer service. Responsive to contact. An efficient, clean, courteous, and knowledgeable work crew removed my old furnace and AC condenser then installed a new Bosch gas furnace and heat pump combination with a new Honeywell thermostat and sensors, integrated the control and plumbing of my Aprilaire 600 humidifier. Electrician Installed a new exterior electric power outlet on siding of house next to new heat p***. All this work was done in less than 8 hrs."

Allan W on August 2023


Avatar for Sanders & Johnson Inc
Sanders & Johnson Inc
7100 N Broadway
4.77(
128
)
Approved Pro
Sanders & Johnson Inc
7100 N Broadway
4.77(
128
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2744 local quotes requested

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!

"On time and on budget. Thanks"

Jason T on June 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!

"On time and on budget. Thanks"

Jason T on June 2025


Avatar for High 5 Plumbing, Heating, Cooling & Electric
High 5 Plumbing, Heating, Cooling & Electric
15710 W COLFAX AVE
4.64(
76
)
Approved Pro
High 5 Plumbing, Heating, Cooling & Electric
15710 W COLFAX AVE
4.64(
76
)
Approved Pro
Customers say: Quick response
4594 local quotes requested
13 years of experience

If you have any plumbing, heating, cooling or electrical issues at all, contact the experts at High 5 today. We are highly experienced and extensively trained. Using state-of-the-art equipment and a comprehensive understanding of plumbing and HVAC, we handle all of your needs in a timely and professional manner. Whether you need to install, repair, or replace piping, unclog a toilet, replace your ceiling fan, repair an electrical box, install a new air conditioner, need furnace maintenance, or more, they can handle it quickly and efficiently. With High 5, you can count on their expert plumbers, electricians, and HVAC technicians to show up as at your home on time and ready to work. We are well-known among their customers and neighbors for our ethical and honest mode of operation. Many other companies take advantage of their customers’ lack of experience and provide low-quality services at exorbitant rates. At High 5, we've built our business based on honesty, integrity, quality work, and exceptional service at fair pricing. Because of these values, it has allowed us to employ the best of the best in our professional fields. Contact us today and schedule an in-home cost estimate for your plumbing, HVAC or electrical in the Denver area. We proudly offer a Senior Discount and Military Discount of 10% off up to $100.

"Over 7 weeks AND 13 visits, we were intermittently subjected to gas leaks, water leaks, no hot water or heat and error codes on our tankless water heater. They took advantage of the fact that my 2 teenagers and I had no hot water and no heat and continuously up-charged us. During that time, they charged an extra $1900 over the original estimate of $4000. All of the issues were because they failed to recognize that my existing venting didn’t match the new unit (even though they added to the venting) and because they didn’t provide drain piping to manufacture recommendations. They offered me money back and then rescinded the offer as the problems they should have caught just continued. I ended up “chatting” with the manufacturer and showing them screenshots to prove the venting was wrong. They offered a cleaning crew after I complained and already cleaned up the mess they ground into the carpet. When I asked to speak to the owner/DORA license holder, Levi Torres, I was told Levi “doesn’t take phone calls”. Clearly, he only takes your money and wastes your time."

Elizabeth B on April 2025

If you have any plumbing, heating, cooling or electrical issues at all, contact the experts at High 5 today. We are highly experienced and extensively trained. Using state-of-the-art equipment and a comprehensive understanding of plumbing and HVAC, we handle all of your needs in a timely and professional manner. Whether you need to install, repair, or replace piping, unclog a toilet, replace your ceiling fan, repair an electrical box, install a new air conditioner, need furnace maintenance, or more, they can handle it quickly and efficiently. With High 5, you can count on their expert plumbers, electricians, and HVAC technicians to show up as at your home on time and ready to work. We are well-known among their customers and neighbors for our ethical and honest mode of operation. Many other companies take advantage of their customers’ lack of experience and provide low-quality services at exorbitant rates. At High 5, we've built our business based on honesty, integrity, quality work, and exceptional service at fair pricing. Because of these values, it has allowed us to employ the best of the best in our professional fields. Contact us today and schedule an in-home cost estimate for your plumbing, HVAC or electrical in the Denver area. We proudly offer a Senior Discount and Military Discount of 10% off up to $100.

"Over 7 weeks AND 13 visits, we were intermittently subjected to gas leaks, water leaks, no hot water or heat and error codes on our tankless water heater. They took advantage of the fact that my 2 teenagers and I had no hot water and no heat and continuously up-charged us. During that time, they charged an extra $1900 over the original estimate of $4000. All of the issues were because they failed to recognize that my existing venting didn’t match the new unit (even though they added to the venting) and because they didn’t provide drain piping to manufacture recommendations. They offered me money back and then rescinded the offer as the problems they should have caught just continued. I ended up “chatting” with the manufacturer and showing them screenshots to prove the venting was wrong. They offered a cleaning crew after I complained and already cleaned up the mess they ground into the carpet. When I asked to speak to the owner/DORA license holder, Levi Torres, I was told Levi “doesn’t take phone calls”. Clearly, he only takes your money and wastes your time."

Elizabeth B on April 2025


Avatar for TACTIHVAC LLC
TACTIHVAC LLC
6485 Lazy Stream Way
5.00(
5
)
Approved Pro
TACTIHVAC LLC
6485 Lazy Stream Way
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
602 local quotes requested

TactiHvac: Tactical Comfort, Mission Accomplished At TactiHvac, we don’t just fix heating and cooling systems—we’re on a mission to save your home from the perils of bad air. Based in Colorado Springs, Jesse Joseph and his crew of HVAC commandos specialize in precise diagnostics, tactical repairs, and flawless installations for residential heating and cooling systems. Think of us as the special forces of climate control: no air too dusty, no furnace too fried, and no AC too ancient to escape our expertise. Armed with 47 years of combined industry experience and a commitment to delivering top Residential HVAC equiptment like Rheem, Weather King and Sure Comfort systems; we don’t just bring the heat (or the chill); we bring peace of mind to you and your family, for decades to come. What makes us different? When the heat shuts off and things go bump in the night; We're the team that runs toward the sound of squeaky furnaces and suspicious noises in the basement and attics, not away from them. Whether it’s an AC add-on, a furnace swap, or a total system overhaul, TactiHvac operates with tactical precision and a practical approach for your family and your wallet. You'll get top-tier service without the runaround because we value your comfort—and your time. As proud supporters of our veterans, we’ve partnered with the American Warrior Initiative to replace furnaces for elderly and disabled vets. This isn’t just a job; it’s a chance to give back to the community we love. So, if your HVAC system is waving the white flag, call TactiHvac at (719) 425-3799. We’ll be there faster than you can say, “Why is my house so cold?"

"Jesse & Josh, Are very professional, they take the time to go over everything with you before starting the work. VETERAN friendly Company with very competitive rates. After trying several other BIG Companies here in town I chose TACTI HVAC and will choose them again. HIGHLY RECOMMEND!"

BIG SGT LLC Jonathon N on November 2024

TactiHvac: Tactical Comfort, Mission Accomplished At TactiHvac, we don’t just fix heating and cooling systems—we’re on a mission to save your home from the perils of bad air. Based in Colorado Springs, Jesse Joseph and his crew of HVAC commandos specialize in precise diagnostics, tactical repairs, and flawless installations for residential heating and cooling systems. Think of us as the special forces of climate control: no air too dusty, no furnace too fried, and no AC too ancient to escape our expertise. Armed with 47 years of combined industry experience and a commitment to delivering top Residential HVAC equiptment like Rheem, Weather King and Sure Comfort systems; we don’t just bring the heat (or the chill); we bring peace of mind to you and your family, for decades to come. What makes us different? When the heat shuts off and things go bump in the night; We're the team that runs toward the sound of squeaky furnaces and suspicious noises in the basement and attics, not away from them. Whether it’s an AC add-on, a furnace swap, or a total system overhaul, TactiHvac operates with tactical precision and a practical approach for your family and your wallet. You'll get top-tier service without the runaround because we value your comfort—and your time. As proud supporters of our veterans, we’ve partnered with the American Warrior Initiative to replace furnaces for elderly and disabled vets. This isn’t just a job; it’s a chance to give back to the community we love. So, if your HVAC system is waving the white flag, call TactiHvac at (719) 425-3799. We’ll be there faster than you can say, “Why is my house so cold?"

"Jesse & Josh, Are very professional, they take the time to go over everything with you before starting the work. VETERAN friendly Company with very competitive rates. After trying several other BIG Companies here in town I chose TACTI HVAC and will choose them again. HIGHLY RECOMMEND!"

BIG SGT LLC Jonathon N on November 2024


Avatar for Absolute Electrical, Heating and Air
Absolute Electrical, Heating and Air
4920 Monaco St
4.32(
25
)
Approved Pro
Absolute Electrical, Heating and Air
4920 Monaco St
4.32(
25
)
Approved Pro
Customers say: Quick response
2110 local quotes requested
18 years of experience

We are in the business of building customers for life. Our team provides exceptional customer service in order to ensure that your experience is a great one. Our goal is to offer the best Electrical, Heating & Air conditioning services in the industry, coupled with the exceptional customer service and value you can only receive from a local, family owned business. Call us today at 720.547.8088. We provide long term solutions which protect your biggest investment, and promise to put you and what’s best for your home first. We believe that all of the electrical, heating, and air components in your home should be comfortable and keep your family safe while meeting your current financial needs and future plans. We'll work together with you and your family to repair or design and install efficient systems within the home.

"did a good job but very overpriced. Had a AC capacitor replaced. Was charged 580 but when I looked online what an average price to replace was, one site said from 100 to 250, while another said from 150 to 400. He also talked me into getting a hard start kit and charged 638 for that. For what I could find, the part cost around 50. It took less than 30 minutes to replace both. Seems a little pricey to me."

william k on July 2023

We are in the business of building customers for life. Our team provides exceptional customer service in order to ensure that your experience is a great one. Our goal is to offer the best Electrical, Heating & Air conditioning services in the industry, coupled with the exceptional customer service and value you can only receive from a local, family owned business. Call us today at 720.547.8088. We provide long term solutions which protect your biggest investment, and promise to put you and what’s best for your home first. We believe that all of the electrical, heating, and air components in your home should be comfortable and keep your family safe while meeting your current financial needs and future plans. We'll work together with you and your family to repair or design and install efficient systems within the home.

"did a good job but very overpriced. Had a AC capacitor replaced. Was charged 580 but when I looked online what an average price to replace was, one site said from 100 to 250, while another said from 150 to 400. He also talked me into getting a hard start kit and charged 638 for that. For what I could find, the part cost around 50. It took less than 30 minutes to replace both. Seems a little pricey to me."

william k on July 2023

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