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Window a/c unit installers in Louisville

Cornell's Brother
8801 W Belleview Ave G203
New on HomeAdvisorNew on Angi
Approved Pro
Cornell's Brother
8801 W Belleview Ave G203
New on AngiNew 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 Coal Creek Heat, LLC
Coal Creek Heat, LLC
30934 Skyline Drive
5.00(
4
)
Approved Pro
Coal Creek Heat, LLC
30934 Skyline Drive
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We provide 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 central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Devin was so professional and knowledgeable. Great company and service!! Highly recommend."

James M on May 2020

We provide 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 central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Devin was so professional and knowledgeable. Great company and service!! Highly recommend."

James M on May 2020


Avatar for 5280 Heating, Cooling & Refrigeration, LLC
5280 Heating, Cooling & Refrigeration, LLC
5790 W Louisiana Ave
5.00(
3
)
Approved Pro
5280 Heating, Cooling & Refrigeration, LLC
5790 W Louisiana Ave
5.00(
3
)
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.

"Fantastic family owned business. The team at 5280 are always professional, and extremely organized. I would highly recommend them to everyone. "

Felicia F on April 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.

"Fantastic family owned business. The team at 5280 are always professional, and extremely organized. I would highly recommend them to everyone. "

Felicia F on April 2025


Avatar for One Source Home Service
One Source Home Service
3740 Interpark Drive
4.27(
541
)
Approved Pro
One Source Home Service
3740 Interpark Drive
4.27(
541
)
Approved Pro
Customers say: Super punctual
398 local quotes requested
13 years of experience

One Source Home Service is a family owned & operated company and has an A rating with the Better Business Bureau. We are here to provide you with the ultimate customer service experience and we are now offering plumbing and electrical .Rest assured you will be well taken care of by our experienced team of service and maintenance technicians. We have over 25 years experience in residential and light commercial. Denver H & V A License #LIC00247049 Denver Refrigeration A License #LIC00247050

"Word of caution, call for action: Our heater went out during the last snow storm and we called One Source Home Service out. They overcharged for parts and labor, SIGNIFICANTLY. I was on the Ramsey show, Denver, yesterday and we are now launching an investigation and I am working towards a class action. If you have had a horrible experience with this company please reach out to me via call or text at 719.357.8017."

Gary G on December 2024

One Source Home Service is a family owned & operated company and has an A rating with the Better Business Bureau. We are here to provide you with the ultimate customer service experience and we are now offering plumbing and electrical .Rest assured you will be well taken care of by our experienced team of service and maintenance technicians. We have over 25 years experience in residential and light commercial. Denver H & V A License #LIC00247049 Denver Refrigeration A License #LIC00247050

"Word of caution, call for action: Our heater went out during the last snow storm and we called One Source Home Service out. They overcharged for parts and labor, SIGNIFICANTLY. I was on the Ramsey show, Denver, yesterday and we are now launching an investigation and I am working towards a class action. If you have had a horrible experience with this company please reach out to me via call or text at 719.357.8017."

Gary G on December 2024


Avatar for Tipping Hat Plumbing, Heating & Electric
Tipping Hat Plumbing, Heating & Electric
608 Garrison St
3.90(
107
)
Approved Pro
Tipping Hat Plumbing, Heating & Electric
608 Garrison St
3.90(
107
)
Approved Pro
Customers say: Super punctual
2714 local quotes requested
19 years of experience

Here at Tipping Hat Plumbing, Heating & Electric our focus is Good Old Fashioned Service. Plumbing, Heating, Cooling, Drain Cleaning and Electric service that is done right, that will last and skillfully completed by one of our hard working, courteous service specialists.

"Very expensive. $600/hr labor cost. Just got a quote today for plumbing and electrical. 2 days of electrical work quoted for $10,000. 4 days of plumbing work quoted for $20,000 Cost of materials is for all work combined is probably $1,000. Roughly that makes $600/hr. That is simply outrageous."

Rudy Y on April 2024

Here at Tipping Hat Plumbing, Heating & Electric our focus is Good Old Fashioned Service. Plumbing, Heating, Cooling, Drain Cleaning and Electric service that is done right, that will last and skillfully completed by one of our hard working, courteous service specialists.

"Very expensive. $600/hr labor cost. Just got a quote today for plumbing and electrical. 2 days of electrical work quoted for $10,000. 4 days of plumbing work quoted for $20,000 Cost of materials is for all work combined is probably $1,000. Roughly that makes $600/hr. That is simply outrageous."

Rudy Y on April 2024


Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
9800 Mt Pyramid Ct #4040
4.92(
26
)
Approved Pro
Behold Heating & Cooling Services
9800 Mt Pyramid Ct #4040
4.92(
26
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1430 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".

"Excellent, thorough, timely and cost effective"

Meredith F on April 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".

"Excellent, thorough, timely and cost effective"

Meredith F on April 2025


Avatar for Tuscan Electric Heating & Plumbing
Tuscan Electric Heating & Plumbing
4301 S. Federal Blvd
5.00(
15
)
Approved Pro
Tuscan Electric Heating & Plumbing
4301 S. Federal Blvd
5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1941 local quotes requested

At Tuscan Electric Heating & Plumbing, we take immense pride in being your trusted local family-owned business, dedicated to delivering excellence in home service. With a commitment to professionalism and a wealth of expertise accumulated, we're here to redefine your experience in electrical, heating, cooling, and plumbing solutions.

"Very good. I plan to hire Jim for some work next month."

Donald G on April 2025

At Tuscan Electric Heating & Plumbing, we take immense pride in being your trusted local family-owned business, dedicated to delivering excellence in home service. With a commitment to professionalism and a wealth of expertise accumulated, we're here to redefine your experience in electrical, heating, cooling, and plumbing solutions.

"Very good. I plan to hire Jim for some work next month."

Donald G on April 2025


Avatar for High 5 Plumbing, Heating, Cooling & Electric
High 5 Plumbing, Heating, Cooling & Electric
15710 W COLFAX AVE
4.69(
75
)
Approved Pro
High 5 Plumbing, Heating, Cooling & Electric
15710 W COLFAX AVE
4.69(
75
)
Approved Pro
Customers say: Quick response
3019 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.

"The project went smoothly, from the inititial call to setting the date and the actual work. The plumber was friendly and professional and showed up on time. He had all the required parts on his truck and completed the job within 30 minutes. The project rate ended up being in the ballpark of what I expected. It would have been nice to have some idea of the price before they showed up though. This seems to be an overall issue with Angi's list with 5+ vendors wanting to show up at you house before providing an estimate. It's probably the nature of the work..."

Matt B on August 2024

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.

"The project went smoothly, from the inititial call to setting the date and the actual work. The plumber was friendly and professional and showed up on time. He had all the required parts on his truck and completed the job within 30 minutes. The project rate ended up being in the ballpark of what I expected. It would have been nice to have some idea of the price before they showed up though. This seems to be an overall issue with Angi's list with 5+ vendors wanting to show up at you house before providing an estimate. It's probably the nature of the work..."

Matt B on August 2024


Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
646 Bryant St
4.75(
73
)
Approved Pro
Heart Heating, Cooling, Plumbing & Electric
646 Bryant St
4.75(
73
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
4315 local quotes requested

Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.

"Liars, Crooks and very dishonest"

Christopher L on September 2024

Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.

"Liars, Crooks and very dishonest"

Christopher L on September 2024


Savage Heating and Air LLC
1882 East 104Th Ave Apt.1316
5.00(
1
)
Approved Pro
Savage Heating and Air LLC
1882 East 104Th Ave Apt.1316
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
980 local quotes requested

In Business Since 2023 SAVAGE HEATING AND AIR, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 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!

"Savage Heating and Air has extensive knowledge on all my HVAC needs. Very nice and professional"

Andrew N on December 2024

In Business Since 2023 SAVAGE HEATING AND AIR, LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 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!

"Savage Heating and Air has extensive knowledge on all my HVAC needs. Very nice and professional"

Andrew N on December 2024

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Window a/c unit installations FAQs

Running a window air conditioner to cool a small room often costs less than $4 per day, making it cheaper than central air for single-room cooling. However, central air might be more efficient if you're using multiple window units or need to cool a space larger than 1,000 square feet. Choosing the right size AC is crucial—a unit that's too big or small can waste energy and increase costs.

Window AC units can use a significant amount of energy. These units use about 12 to 17 kilowatt-hours per day, significantly more than a refrigerator's one to 1.5 kilowatt-hours per day. To keep your energy costs down, run your window AC only when necessary, keep doors closed to contain the cool air, regularly clean filters and coils, and seal any gaps around the unit to prevent cold air from escaping.

Inexpensive air conditioner units are often not worth it. Low-cost products from popular brands like General Electric, LG, Whirlpool, or Frigidaire may be a reasonable investment. However, putting a small, budget-friendly unit in a large room wastes energy and shortens the life span of the AC since it has to draw more power and work much harder to cool the space. The unit will consume more energy and stress the motor and other internal parts, resulting in early breakdown and costly repairs.

The best deals on window AC units come during the fall when businesses slash prices to clear out old inventory. You can also speak with your local AC installer, who may get you a good deal on a window AC unit since they have access to trade pricing. You can also watch for discontinued products and flash sales in your area.

Window AC repair costs between $110 and $390, with most people paying around $250. Parts cost between $2 and $150, with the rest going toward labor, at around $30 per hour. The occasional one-off repair or a routine AC tuneup cost $75 to $200. Servicing can keep your AC running in good condition for several more years before you need to pay for a replacement unit.

Window AC units last eight to 10 years when installed and maintained correctly. High-quality models last up to 20 years with proper care and routine maintenance. The unit’s longevity depends on its construction quality, regular cleaning, and electrical safety inspections. Keeping the filters and coils clean and addressing minor repairs promptly extends its effective performance and ensures reliable cooling.

The homeowners guide to window a/c unit installations
From average costs to expert advice, get all the answers you need to get your job done.
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