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Top-Rated Air conditioning pros in Highlands Ranch - Updated Nov 2026

Avatar for Lous Heating and Cooling LLC
Lous Heating and Cooling LLC
5.0(
71
)
Central A/C - Service or RepairSwamp Cooler - Service or RepairCentral Air Cleaner - Install or Replace+2 more

Serving Highlands Ranch, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"The work done was exceptional. It was done in an efficient and timely matter. Louis showed expert knowledge and gave terrific customer service. He answered all my questions and helped me with my new air conditioning system. I would definitely recommend his work to anybody who is looking for a hard-working and knowledgeable HVAC provider! I could tell he really cared about the work and if ther is any other services I need, he will be my first call. Thank you again Louis"
80% Furnace Replacement
1998 York Furnace
Air Conditioner Replacement
Furnace Replacement
Swamp Cooler Deep Cleaning

+7

Response time4 hrs
80 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Quality West Heating & Cooling
Quality West Heating & Cooling
4.7(
338
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Highlands Ranch, CO and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"My furnace went out and cuddly I found myself getting bids for a replacement. I don’t make large purchases without a ton of analysis to ensure the right solution for the best price. I didn’t just have a broken furnace I have air flow issues too as the rooms furthest away never get enough air. I didn’t want to just replace I wanted to solve a 23-year-old problem. Rob was out the same day walking me through options and not over selling just giving me the facts and not pushy. His approach to resolving the air flow made sense and was very conservative as he proposed small low cost/no cost changes we could implement over time after a period of observation with the new system instead of hitting me up front with new dampers etc. up and making significant changes to the air flow. Rob clearly knew what he was talking about and has likely installed himself over the years as many systems as he has sold. There were three other comparable bids and none of them were even close to the value I was to receive from Quality West. These guys don’t look at each install as just another job they take pride in their work, are extremely professional and even have some fun along the way. They were creative in their piping as I upgraded to a two-stage variable speed system that required PVC piping so the ascetics of the piping in and outside of the home mattered to me and they were conscious of that. I would much rather work with a company like these guys that are dependent on referrals instead of doing a bunch of advertising because for them customer satisfaction really matters. This is the reason for this long review as they deserve the recognition and I would highly recommend Rob and his team Bob and Dave."
This image shows the wall mounted unit that will cool and heat the whole living room area without any noise.
Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Pacific Air, Inc.
Pacific Air, Inc.
4.8(
84
)
Central A/C - Service or Repair

Serving Highlands Ranch, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Offers commercial services

"My AC wasn’t cooling the air so I reached out to several companies. I had an initial diagnostic with a different company who said I absolutely needed to replace the entire unit. After that I spoke with Shane at Pacific Air Inc who sent Ray over within 30 minutes who was able to diagnose the real problem and get it up and running without a full replacement in under 30 minutes. Apart from the solid and quick work they did, I really admired the honesty and transparency, and showing me the problem and what they are doing to fix it. Very friendly and stand up guys. I’ll definitely use them for all my heating and cooling in the future because of this experience. Couldn’t recommend them enough. Thank you Shane and Ray!!"
New inside set up
New Outside set up
Before inside set up
Before outside set up
Response time4 hrs
Response rate96%
1 neighbors recently requested a quote
Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
87
)
Central A/C - InstallCentral A/C - Service or RepairCentral Humidifier - Install or Replace+2 more

Serving Highlands Ranch, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"We had an outstanding experience with Behold Heating & Cooling Services! Our HVAC blower (squirrel cage) failed on Thursday evening, just before a weekend with temperatures expected to reach 102 degrees. After calling multiple HVAC companies and being told no one could come out until the following week, Behold was able to schedule Erfan Azimi to come out right away. Erfan quickly diagnosed the problem, picked up the necessary parts, and had our air conditioning back up and running before the weekend. He was personable, knowledgeable, efficient, and took the time to explain everything clearly. We truly appreciated the prompt service and professionalism, especially given how busy HVAC companies are during this heat. I highly recommend Erfan Azimi and Behold Heating & Cooling Services. They turned what could have been a miserable weekend into a comfortable one!"
Mini Split Install
A nice, new, clean Boiler - restoring heat right in time for the evening!
Glad we were able to restore heat same day for this customer.  Replaced Furnace and A/C for proper installation, air flow and 10 year warranty on FULL SYSTEM.
Glad we were able to restore heat same day.   Full Boiler replacement, repipe and zone valves.
Mini Split Install

+67

20 neighbors recently requested a quote
Recommended by41%of homeowners
Avatar for Emporia Home Services
Emporia Home Services
4.8(
22
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+8 more

Serving Highlands Ranch, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

Heating, Cooling & Electrical Services Emporia is committed to keeping you comfortable in your own home with expert service, quality parts and equipment, as well as unique technology designed and assembled with care by our own engineers right here in Colorado. Emporia proudly serves Littleton, Lakewood, and the Denver Metro area with quality Heating, Ventilation, and Air Conditioning (HVAC) solutions. Our goal is to ensure that every customer receives best-of-class service and reliable products, all at the lowest possible price we can offer.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time2 days
Response rate100%
8 neighbors recently requested a quote
Avatar for Bee There Heating & Air
Bee There Heating & Air
4.9(
75
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Highlands Ranch, CO and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Our experience was incredible! They were in and out in 3 hours and even went out to drive to Denver and back to get the very unique part we needed for our very old air conditioner. He was very professional and got right to work. No haggling or excessive pricing. He also worked long after the end of the work day. Very clearly committed to excellence and getting the job done quickly and accurately."
Littleton
Denver
Highlands Ranch
Littleton
Lakewood

+21

Response time3 hrs
Response rate88%
Recommended by97%of homeowners
Avatar for Comfair Heating and Cooling LLC
Comfair Heating and Cooling LLC
5.0(
24
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+4 more

Serving Highlands Ranch, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"So happy with my new furnace! Habib was super responsive and squeezed me in right after our first cold snap, right before Christmas. Did a great job explaining things both about the new unit and the concerns about my old/broken. Very competitively priced. His whole team was professional and respectful. They left my place spotless after the install. Will be contacting ComfAir again when my 30 year old AC inevitably bites the dust!"
Commercial
Commercial
Furnace fix
New  Unit install
Residential

+3

Response time3 hrs
Response rate100%
Avatar for Apple Aire Heating & Cooling
Apple Aire Heating & Cooling
4.5(
205
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Highlands Ranch, CO and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"From the initial evaluation visit to the design to the install, Apple Aire did a fantastic job. They were very responsive in all phases of the project. The project coordinator Nate did a great job explaining my options and answering my questions. I would definitely recommend Apple Air for any HVAC project."
High efficenty Lochinvar Knight Boiler
New Dunkirk boiler installed
Old boiler
Systems 1 and 2
System 2

+14

39 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 699

FAQs for air conditioning projects in Highlands Ranch, CO

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Highlands Ranch, CO homeowners’ guide to air conditioning services

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