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Window a/c unit installers in Lakewood

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 Colorado Bear Heating & Air
Colorado Bear Heating & Air
2237 Deer Hollow Tr
5.00(
11
)
Approved Pro
Colorado Bear Heating & Air
2237 Deer Hollow Tr
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! We are family. We are focused on the needs of our customer base & dedicated to providing our clients with an exceptional service experience, superior to other service providers in our marketplace. Our quick response time, strong communication skills, compassionate drive, and thoroughness sets us apart from other providers.

"they did an excellent job. were knowledgeable and professional."

Mansour R on December 2024

We specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more! We are family. We are focused on the needs of our customer base & dedicated to providing our clients with an exceptional service experience, superior to other service providers in our marketplace. Our quick response time, strong communication skills, compassionate drive, and thoroughness sets us apart from other providers.

"they did an excellent job. were knowledgeable and professional."

Mansour R on December 2024


Avatar for Plumbing Tree
Plumbing Tree
10196 West Yale Place
4.61(
28
)
Approved Pro
Plumbing Tree
10196 West Yale Place
4.61(
28
)
Approved Pro
Customers say: Terrific value
2162 local quotes requested
13 years of experience

We have the experience and dedication to assist with all of your plumbing, heating, cooling services, along with remodeling and renovations. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

"The team arrived around 10:00 and took most of the day to complete the replacement. There is still some fine tuning to be done, but it is outside the scope of the project."

Gerald B on July 2024

We have the experience and dedication to assist with all of your plumbing, heating, cooling services, along with remodeling and renovations. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

"The team arrived around 10:00 and took most of the day to complete the replacement. There is still some fine tuning to be done, but it is outside the scope of the project."

Gerald B on July 2024


Avatar for Handy Mountain Solutions llc
Handy Mountain Solutions llc
10220 City View Drive
5.00(
11
)
Approved Pro
Handy Mountain Solutions llc
10220 City View Drive
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
72 local quotes requested

I have been helping friends and family preform basic repairs and upgrades to there homes including my own for over 20 years. With a background in Facilities Maintenance, Carpentry and fine wood working I have acquired vast range of valuable skills and take great pride in my work. If your looking for a Handy man that provides outstanding service and beautiful outcomes look no further.

"Jamen was prompt in returning my call for a quote and his prices were very reasonable for installing some ceiling fans. He was thorough and did a great job!"

Cat B on March 2024

I have been helping friends and family preform basic repairs and upgrades to there homes including my own for over 20 years. With a background in Facilities Maintenance, Carpentry and fine wood working I have acquired vast range of valuable skills and take great pride in my work. If your looking for a Handy man that provides outstanding service and beautiful outcomes look no further.

"Jamen was prompt in returning my call for a quote and his prices were very reasonable for installing some ceiling fans. He was thorough and did a great job!"

Cat B on March 2024


Avatar for Ilios Professional Services
Ilios Professional Services
PO Box 24209
5.00(
2
)
Approved Pro
Ilios Professional Services
PO Box 24209
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
212 local quotes requested

We perform handyman work, remodeling, plumbing, drywall, flooring, electricity and all repair work. Also can provide housekeeping service

"They took everything and poured new concrete, everything was done in the amount of time they estimated. Eduardo and his team are great, I highly recommend them!"

Eugenia J on October 2024

We perform handyman work, remodeling, plumbing, drywall, flooring, electricity and all repair work. Also can provide housekeeping service

"They took everything and poured new concrete, everything was done in the amount of time they estimated. Eduardo and his team are great, I highly recommend them!"

Eugenia J on October 2024


Tempcontrol
5943 West Alder Ave.
New on HomeAdvisorNew on Angi
Approved Pro
Tempcontrol
5943 West Alder Ave.
New on AngiNew on HomeAdvisor
Approved Pro
230 local quotes requested
26 years of experience

In Business Since 1999 Quality work, knowledgeable techs, and great prices. At Tempcontrol Heating & Air Conditioning, 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!

In Business Since 1999 Quality work, knowledgeable techs, and great prices. At Tempcontrol Heating & Air Conditioning, 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!


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
2688 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 Sanders & Johnson Inc
Sanders & Johnson Inc
7100 N Broadway
4.76(
127
)
Approved Pro
Sanders & Johnson Inc
7100 N Broadway
4.76(
127
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
1570 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!

"Alex was our tech and had an awesome attitude and approach to our issue. Appreciated him working quickly to diagnose and then commence on the repair."

Brianna Z on June 2023

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!

"Alex was our tech and had an awesome attitude and approach to our issue. Appreciated him working quickly to diagnose and then commence on the repair."

Brianna Z on June 2023

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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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