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Avatar for O 2 KOOL REFRIGERATION & A/C
O 2 KOOL REFRIGERATION & A/C
4.7(
584
)
Central A/C - InstallCentral A/C - Service or RepairWindow A/C Unit - Service or Relocate+3 more

Serving Leander, TX and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"I can not say enough positive about Chris and Chuck and O 2 KOOL!! Chuck came out in early January to look at my old Trane gas furnace .. he got it going with no trouble. Now today ... during our ice/snow armageddon it went out again. I called and Chris FaceTimed with me .. looked at what was up and talked me through how to relight the system myself. Good news .. I now have heat! I strongly recommend them to anyone who needs help with their heating and cooling system! They not only helped, but assured me .. a 60 yr old woman .. everything would be OK and safe. That is a VERY rare quality!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

26 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for INDOOR COMFORT EXPERTS A-C
INDOOR COMFORT EXPERTS A-C
5.0(
19
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Leander, TX and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I have always used indoor comfort experts for all of my air conditioning needs. The staff is extremely knowledgeable and friendly to work with. Seth has many years in the trade and it shows through his work. I highly recommend this company!!"
Round rock
Round rock
Round rock
Austin Tx
Austin Tx

+6

36 neighbors recently requested a quote
Avatar for EB5 HVAC Texas Venture, LLC
EB5 HVAC Texas Venture, LLC
4.5(
97
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Leander, TX and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

Welcome to Cool Crew ATX! Your Trusted HVAC Experts! We provide top-quality heating, cooling, and refrigeration services for homes and businesses. With 30+ years of expertise, Chief Technician Yamel Gonzales and our certified team deliver reliable installations, repairs, and maintenance to keep you comfortable year-round.\n\nWhy Choose Us?\n- Comprehensive HVAC & refrigeration solutions\n- Customer-first approach with integrity & professionalism\n- Energy-efficient systems to cut costs & improve comfort\n- Excellent ratings with 500+ hires in recent years\n\nServices We Offer: Furnace repair/installation, AC tune-ups & replacements, commercial refrigeration, and preventive maintenance.\n\nWhether you need emergency repairs or a custom system, Cool Crew ATX ensures every job is done right. Call 737-637-3900 today to schedule your service and stay comfortable all year long!

Logo
15 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Aire Geeks Inc
Aire Geeks Inc
4.8(
13
)
Central A/C - Service or Repair

Serving Leander, TX and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Matt came to my house the same day that I called and was very prompt. He fixed my AC unit right away and showed me the faulty parts. I am very pleased with him and his service."
Gallery
1 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Clean Air Pro Services
Clean Air Pro Services
4.5(
40
)
Air Ducts & Vents - Clean

Serving Leander, TX and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"It was a pleasure working with Ben and his crew from Clean Air Houston. Ben called in advance and showed up on schedule, proceeded to explain the work to be performed and answered all of my questions. Then, he and his crew carried on the deep cleaning of air ducts and vents, and inspected the a/c units including the treatment for mold and fungus. I am very happy with the quality of service and professionalism they provided, and strongly recommend them."
swamp went into the flue line down to the fire box
Bacteria Found in the plenum box
Attic space before
Cap was not properly covered or sealed.
Another angle of the plenum box with the Bacteria

+29

Response time11 hrs
Response rate100%
64 neighbors recently requested a quote
Avatar for X-TECH AC and Heating LLC
X-TECH AC and Heating LLC
4.6(
102
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Leander, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

\nX-TECH AC and Heating LLC provides premier residential and commercial HVAC and refrigeration services across Leander and the Greater Austin area. Backed by over 30 years of mechanical trade experience, our licensed technicians specialize in complete AC installations, gas heating systems, Mitsubishi mini-splits, heat pumps, system tune-ups, and complex system issues.\n\nWe operate with total transparency, upfront pricing, and a commitment to getting the job done right the first time. Whether you need an emergency repair, a system replacement, or routine maintenance, we deliver reliable, high-quality climate control tailored to your home or business. Bilingual service available.\n

Installation of System
Installation of System
Installation of System
Installation of System
Installation of System

+1

71 neighbors recently requested a quote
Recommended by84%of homeowners
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Air Conditioning questions, answered by experts

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

It’s normal to hear a low humming sound as air moves through your vents. Most of the time, you probably won’t even notice it. However, if that sound becomes disruptive or if you hear more concerning noises (such as rattling, clicking, banging, hissing, or grinding), there might be a problem with your HVAC system.

On average, replacing an AC compressor costs between $800 and $2,300, but it could cost as much as $2,800. There are a few factors that impact the price of a compressor replacement, including the type and size of the compressor, as well as the type of HVAC system and local labor rates.

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers, or ASHRAE, sets the standard guidelines for air changes per hour in homes and businesses. The International Residential Code, or IRC, also sets ACH requirements for residences and bases those requirements off of ASHRAE standards plus climate specifics related to your location.

The Leander, TX homeowners’ guide to air conditioning services

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