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Top-Rated Swamp cooler installers and replacers in Lockhart - Updated Nov 2026

Avatar for O 2 KOOL REFRIGERATION & A/C
O 2 KOOL REFRIGERATION & A/C
4.7(
584
)
Swamp Cooler - Install or Replace

Serving Lockhart, 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!"
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+25

27 neighbors recently requested a quote
Recommended by96%of homeowners
Affordable A/C & Heating
4.6(
24
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"We have used Affordable Air twice. We had a new unit installed in May of 2011, after the wonderful experience we had with Sam we knew immediately who we would call for our system when we had to rebuild our home. Sam is patient, ON TIME, and very honest, even if the honest answer will be less expensive. I would use Sam and Affordable A/C again in an instant."
Response time7 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Prostar Water Inc
Prostar Water Inc
4.8(
262
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

In business since 1996

Free estimates

Credit card accepted

"We have a water system on our place for cleaning and treating our water since we have wells. We have a water clarification system which we bought from them and they come out every year and do maintenance on it. It is more than just a softener, it's a clarification system as well, it crops out solids and everything. They've got a service tech that's really knowledgeable and knows his business. Their maintenance costs and service calls are not inexpensive but they are no different from anybody else. When they came to install the new part, it took about 20 or 30 minutes."
Recommended by97%of homeowners
Avatar for Legend Plumbing & Septic Co.
Legend Plumbing & Septic Co.
4.7(
178
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

In business since 1982

Free estimates

Emergency services offered

"The plumber arrived within the time frame, identified what had to be done and offered different models and price options regarding the replacement heater. Mario the plumber, was very knowledgeable in regards to what the new water heater standards are and what would best work in the space available. After agreeing on the replacement model and price, he picked up the unit from storage and within 2 hours had replaced the unit. During the install he explained in detail the features of the new unit and why new connections (replaced copper with flex piping) would prevent electrolysis due to steel pipes coming out of the heater and copper pipes installed in the home. All in all a very professional job. I would definitely recommend Legend Plumbing to friends and neighbors."
Recommended by92%of homeowners
Avatar for Air Care Today
Air Care Today
4.6(
29
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"I can think of nothing that I would change, or suggest be done differently. It went as if the installers were working on their own homes. Cliff did a great job of getting me the best deal on a great system, and Joe and Brandon showed great effort installing the system. They were both friendly and knowledgeable, and I could really see their commitment to doing the best job possible. I am just so grateful to have found Air Care Today, and chose to go with them. I will definitely mention Air Care Today to my coworkers and friends. Sincerely A lifetime customer Jeff Menacher"
Recommended by89%of homeowners
Avatar for Texas Air Repair
Texas Air Repair
5.0(
25
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"After being quoted a ridiculous price for a part from a much larger well-known repair company, I decided to try a small business to see if the service was better and fairer. So far so good, Marcus came out and diagnosed the problem and my heater is now back to working just fine. Marcus identified that the other company had recommended me replace a part that nothing was wrong with it, and in doing so saved me money. He was professional and knowledgeable and will definitely be sticking with Texas Air Repair."
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+32

Recommended by100%of homeowners
Avatar for Aire Serv of San Antonio
Aire Serv of San Antonio
4.6(
104
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"I've had Aire Serve for a number of years and I'm very happy with it. I've now switched over to another provider so I no longer have to worry about the other type, the freon or anything. I've had no problems with them; I've had them for years. Their price was competitive in San Antonio. I don't know what other prices are. I just know that I was happy with what I got. They're a really good company and I've had them for probably ten years. I'm not one to switch around companies and never know what you're gonna get from them."
Recommended by91%of homeowners
Avatar for On Time Electric Inc
On Time Electric Inc
4.7(
425
)
Swamp Cooler - Install or Replace

Serving Lockhart, TX and surrounding areas

In business since 2003

Emergency services offered

Credit card accepted

"okay, but not great. For the wiring, he just changed the bulbs, which I provided. Was unable to fix the wall outlet. In the process, he broke the wall switch. Had to replace it with a different switch, which I don't like as well. I didn't realize until after he left that he had installed it backwards. I can live with it, but it's inconvenient."
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Recommended by90%of homeowners
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FAQs for swamp cooler installation and replacement projects in Lockhart, TX

Swamp coolers are quite energy-efficient, using only 15% to 35% of the electricity that traditional central air conditioning units consume. This can lead to significant savings on your energy bills. However, keep in mind that swamp coolers require water to operate and may not cool your home as effectively in extremely hot or humid conditions. When considering overall efficiency, it is essential to weigh both electricity and water usage, as well as the cooling needs specific to your local climate.

Evaporative coolers only work in dry climates because they cool by moistening the air. If the air is already moist, this will have little to no cooling effect. Central AC is a better choice if you live in a humid climate, such as the Midwest, eastern, or western coastal regions.

To install a swamp cooler on a roof, a local HVAC specialist will first find and cut a spot free of wiring and obstructions. They’ll then install metal bracing, legs, brackets, the ceiling duct register, ductwork, power, and thermostat wires. Once installed, they’ll seal all openings, attach duct connections, and install a thermostat. Before leaving, they’ll run cool water piping to the unit and inspect all the connections.

The cost to repair your swamp cooler ranges from $50 to $600, depending on the issue, whether new parts are needed, and the chosen repair service. Depending on the type of pad your system uses, you will need to change out the pads every one to three years for proper operation. When budgeting for the cost to repair a window unit, expect to pay around $230.

The U.S. Department of Energy states that swamp coolers can cool a single room by five to 15 degrees Fahrenheit. However, this largely depends on the size and installation method of the evaporative cooler. You can only achieve these results in a dry climate, such as the American South, as it’s easier to cool rooms in humid environments with central air.

Swamp cooler water usage varies depending on the size of the unit. Smaller evaporative units may use one gallon per hour, while much larger units could use up to 15 gallons of water per hour. Most homeowners can expect their unit to use between seven and 10 gallons of water per hour of usage.

The Lockhart, TX homeowners’ guide to swamp cooler installations and replacements

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