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Find Air conditioning pros in Littleton

Avatar for JC Mechanical Heating & Air Conditioning LLC

JC Mechanical Heating & Air Conditioning LLC

4.79(
63
)
Approved Pro

JC Mechanical Heating & Air Conditioning LLC

4.79(
63
)
Approved Pro
Customers say: Quality work
27 local quotes requested
6 years of experience

We opened our doors in 2019 and since then we have served thousands of clients throughout denver and all the surrounding cities . All of our employees are certified , background checked , and drug tested so you know that you can trust who's coming in your home . We strive to give the best experience possible to all of our customers and always do what we promise in a timely manner . We are fully licensed and continuouslly train so we know that we can provide the best options possible for all of your HVAC needs . We hope to be your choice for all of your HVAC needs for years to come .

"Very professional and was able to complete the job within 30m. Great team"

Gabriel R on August 2025

We opened our doors in 2019 and since then we have served thousands of clients throughout denver and all the surrounding cities . All of our employees are certified , background checked , and drug tested so you know that you can trust who's coming in your home . We strive to give the best experience possible to all of our customers and always do what we promise in a timely manner . We are fully licensed and continuouslly train so we know that we can provide the best options possible for all of your HVAC needs . We hope to be your choice for all of your HVAC needs for years to come .

"Very professional and was able to complete the job within 30m. Great team"

Gabriel R on August 2025


Cornell's Brother

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Approved Pro

Cornell's Brother

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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 Indoor Air Comfort Solutions, LLC

Indoor Air Comfort Solutions, LLC

5.00(
3
)
Approved Pro

Indoor Air Comfort Solutions, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today, I am your local HVAC specialist that’s here to keep your home comfortable through all of Colorado’s seasons. I trained at Lincoln Tech and spent the next 10 years gaining experience in both new construction and service/retro work. Now I’m here to bring my knowledge to the table and provide exceptional service for my community. From furnaces and AC’s to minisplit units and propane conversions - I can handle it all.

"I have recommended him to others, I am a contractor also, and used him on multiple projects, I now consider him a friend since using him on so many projects. He is very responsive."

Lester H on July 2024

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today, I am your local HVAC specialist that’s here to keep your home comfortable through all of Colorado’s seasons. I trained at Lincoln Tech and spent the next 10 years gaining experience in both new construction and service/retro work. Now I’m here to bring my knowledge to the table and provide exceptional service for my community. From furnaces and AC’s to minisplit units and propane conversions - I can handle it all.

"I have recommended him to others, I am a contractor also, and used him on multiple projects, I now consider him a friend since using him on so many projects. He is very responsive."

Lester H on July 2024


Roxborough Heating & Air

4.79(
41
)
Approved Pro

Roxborough Heating & Air

4.79(
41
)
Approved Pro
Customers say: Terrific value
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
30 years of experience

Roxborough Heating & Air has over 20 experience in heating and cooling. With an eye for detail we can find the problem long before others can. We are the detectives of the HVAC industry. We are very competitive in our prices: We charge $45 per trip charge and $90.00 per hour for labor.

"I cannot say enough positive things about Paul! Not only did he instantly figure out our issue and resolve it, but he took the time to slowly talk us through every bit of what had happened and advise on how to prevent our unit from breaking in the future. As new homeowners, we cannot express how much this is truly appreciated. His patience and expertise is unmatched! We will absolutely be returning in the future. Would absolutely recommend, 1000%."

Emily B on August 2021

Roxborough Heating & Air has over 20 experience in heating and cooling. With an eye for detail we can find the problem long before others can. We are the detectives of the HVAC industry. We are very competitive in our prices: We charge $45 per trip charge and $90.00 per hour for labor.

"I cannot say enough positive things about Paul! Not only did he instantly figure out our issue and resolve it, but he took the time to slowly talk us through every bit of what had happened and advise on how to prevent our unit from breaking in the future. As new homeowners, we cannot express how much this is truly appreciated. His patience and expertise is unmatched! We will absolutely be returning in the future. Would absolutely recommend, 1000%."

Emily B on August 2021


West Side Handyman

5.00(
4
)
Approved Pro

West Side Handyman

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 years of experience

Alan Wilkins 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.

"Our handyman was very polite and we had quality work!"

Tamara S on July 2023

Alan Wilkins 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.

"Our handyman was very polite and we had quality work!"

Tamara S on July 2023


Alexander Johnson

5.00(
3
)
Approved Pro

Alexander Johnson

5.00(
3
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

Al’s Heating and Cooling 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 customer's interests and make their concerns the basis of our business.

"Alex was great to work with. He did a phenomenal job on my AC unit and was very honest through the whole process.I will definitely keep him coming back to service my unit as needed, I highly recommend his services."

Victor M on May 2022

Al’s Heating and Cooling 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 customer's interests and make their concerns the basis of our business.

"Alex was great to work with. He did a phenomenal job on my AC unit and was very honest through the whole process.I will definitely keep him coming back to service my unit as needed, I highly recommend his services."

Victor M on May 2022


Avatar for Doctor Fix-It Plumbing, Heating & Electric

Doctor Fix-It Plumbing, Heating & Electric

5.00(
5
)
Approved Pro

Doctor Fix-It Plumbing, Heating & Electric

5.00(
5
)
Approved Pro
91 local quotes requested
47 years of experience

Since 1978, Doctor Fix It has been Denver’s trusted family-owned choice for plumbing, heating, cooling, and electrical services. What began as a small plumbing company has grown into a full-service home comfort provider backed by over 70 years of combined experience. Our team isn’t just about fixing problems — we believe in treating every customer like family, delivering reliable solutions with honesty, care, and professionalism. From emergency repairs to long-term maintenance, we bring the knowledge, values, and dedication that make us the go-to experts Denver homeowners count on.

Since 1978, Doctor Fix It has been Denver’s trusted family-owned choice for plumbing, heating, cooling, and electrical services. What began as a small plumbing company has grown into a full-service home comfort provider backed by over 70 years of combined experience. Our team isn’t just about fixing problems — we believe in treating every customer like family, delivering reliable solutions with honesty, care, and professionalism. From emergency repairs to long-term maintenance, we bring the knowledge, values, and dedication that make us the go-to experts Denver homeowners count on.


Avatar for Now Heating & Air

Now Heating & Air

4.50(
19
)
Approved Pro

Now Heating & Air

4.50(
19
)
Approved Pro
Customers say: Quick response
36 years of experience

Welcome to Now Heating & Air Since 1989, we have provided expert service for residential and commercial HVAC installation, repair, and maintenance in Denver, Boulder, and the surrounding areas. Whether you need new system installation or system retrofit, our professional technicians will assess your needs and provide a system for your home or business that will exceed your expectations. Our technicians have extensive training and experience with the heating and air conditioning units we install, as well as all other types of residential systems to ensure efficient air conditioning and heating repair for your home. We provide repair, replacement, and preventative maintenance for air conditioners, furnace repair, furnace replacement, heat pumps, air duct cleaning, humidifiers, and more.

"BEN was fantastic. Very knowledgeable and explained every step of the process in complete detail. Within 5 mins of a seeing the unit he knew exactly what the problem was and how to fix it. Ben listened to our concerns and gave us better options for optimal performance of our system and also recommendations for this problem . Eliminating reoccurrence and the appropriate maintenance schedule recommended for our unit. With his wealth of knowledge and approach NOW is very lucky to have BEN on their team."

Louella N on August 2021

Welcome to Now Heating & Air Since 1989, we have provided expert service for residential and commercial HVAC installation, repair, and maintenance in Denver, Boulder, and the surrounding areas. Whether you need new system installation or system retrofit, our professional technicians will assess your needs and provide a system for your home or business that will exceed your expectations. Our technicians have extensive training and experience with the heating and air conditioning units we install, as well as all other types of residential systems to ensure efficient air conditioning and heating repair for your home. We provide repair, replacement, and preventative maintenance for air conditioners, furnace repair, furnace replacement, heat pumps, air duct cleaning, humidifiers, and more.

"BEN was fantastic. Very knowledgeable and explained every step of the process in complete detail. Within 5 mins of a seeing the unit he knew exactly what the problem was and how to fix it. Ben listened to our concerns and gave us better options for optimal performance of our system and also recommendations for this problem . Eliminating reoccurrence and the appropriate maintenance schedule recommended for our unit. With his wealth of knowledge and approach NOW is very lucky to have BEN on their team."

Louella N on August 2021


Avatar for Good Day Mechanical, LLC

Good Day Mechanical, LLC

4.83(
3
)
Approved Pro

Good Day Mechanical, LLC

4.83(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Good Day Mechanical, ll 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.

"Very good manners and had all the answers"

Duane I on February 2023

Good Day Mechanical, ll 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.

"Very good manners and had all the answers"

Duane I on February 2023


The Larkspur Group, Inc

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Approved Pro

The Larkspur Group, Inc

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
19 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

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FAQs for air conditioning projects in Littleton, CO

You can identify your system's refrigerant type by examining the data plate or label often located on the outdoor condensing unit. Look for "R-22" or "HCFC-22" in the specifications. 

Manufacturing date provides another clue—systems produced before 2010 often use R-22, while newer units utilize alternative refrigerants. If the label is missing or unclear, a qualified HVAC technician can determine your refrigerant type during a service inspection.

Federal regulations prohibit the purchase and handling of R-22 refrigerant without proper EPA certification. These restrictions exist because R-22 contributes to ozone depletion when released into the atmosphere and requires specialized handling procedures. 

Additionally, improper refrigerant charging can damage your system and create safety hazards. Professional technicians have the training, equipment, and legal authorization to properly diagnose, repair, and recharge your system.

Air conditioning systems require approximately two to four pounds of R-22 per ton of cooling capacity, with three pounds per ton being the average. For example, a 3-ton system needs about nine pounds of refrigerant for a complete charge. However, the exact amount varies by manufacturer, model, and system configuration. A professional technician will determine the precise charge required for your specific equipment.

While technically possible to retrofit some R-22 systems to use alternative refrigerants, these conversions require substantial modifications to system components and are rarely cost-effective. The compressor, expansion valve, and sometimes the entire coil system would need replacement or adaptation. Most homeowners find that investing in a complete system upgrade provides better long-term value and performance than attempting conversion of aging equipment.

Though new production of R-22 ended in 2020, reclaimed and recycled supplies remain available but are steadily decreasing. The EPA's final phaseout deadline extends to 2030, but practical availability may become severely limited well before that date. As supplies continue to diminish, expect prices to rise accordingly. Homeowners with R-22 systems should begin planning for eventual system replacement as part of their long-term home maintenance strategy.

The Littleton, CO homeowners’ guide to air conditioning services

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