Trusted AC, Heating & Plumbing in Round Rock, TX
Same-day AC repair, plumbing, and water heater service from the family-owned team headquartered right here on S Industrial Blvd — backed by 1,200+ five-star reviews and the only 100% money-back guarantee in Central Texas.
What Our Customers Say About Us
Round Rock's Hometown HVAC & Plumbing Team
Koala Cooling & Plumbing has called Round Rock home since 2019. Our shop sits at 1102 S Industrial Blvd — minutes from Old Settlers Park, La Frontera, and downtown Round Rock — and our technicians live in the same neighborhoods we serve: Forest Creek, Teravista, Paloma Lake, Brushy Creek, Mayfield Ranch, Walsh Ranch, Stone Canyon, Chandler Creek, Sonoma, and everywhere in between. When you call, you're getting a neighbor, not a national chain dispatcher in another state.
Owners Scott and Stacie Feller live in the community and are active with the Round Rock Chamber of Commerce. We offer tech school (TSTC) scholarships for high school seniors and sponsor local charity events every year because this city is genuinely home for us, not a market on a map.
Round Rock AC Repair & HVAC Service
Round Rock summers run brutal and our winters can swing into hard freezes — your HVAC system works overtime here. We handle every part of keeping it running:
- Same-day AC repair in Round Rock — most calls completed in 1 to 3 hours
- AC system replacement and new installation with prices posted online
- Heat pump installation and service
- Ductless mini-split systems for additions, garages, and ADUs
- Seasonal tune-ups through the Koala Club membership
Every Round Rock HVAC job is backed by our written 100% Satisfaction Guarantee and StraightForward Pricing™ — you see the cost before we lift a wrench.

Round Rock Plumbing Services
Our licensed plumbers (RMP-37834) operate out of Suite D of the same building. Whether it's a 2 a.m. burst pipe or a planned water heater swap, we move fast and price it before we start:
- Drain cleaning and sewer line service
- Water heater repair — same-day across Round Rock
- Tankless and traditional water heater installation
- Whole-home water softeners — essential for Round Rock's hard water
- Leak detection and emergency repairs
Trusted by 1,200+ Round Rock & Central Texas Neighbors
4.9
out of 5 stars
Over 1,200 Google Reviews
across our HVAC and Plumbing departments, with 4.9 stars on Cooling and a perfect 5.0 on Plumbing
Real reviews. Real names. Real neighbors. We earn every star.
Why Round Rock Neighbors Pick Koala
- Local since 2019. Owners Scott and Stacie Feller live in Round Rock, sponsor tech school scholarships, and are active with the Round Rock Chamber of Commerce.
- 1,200+ five-star reviews. 4.9 stars on HVAC, a perfect 5.0 on plumbing — most of them from your zip code.
- The only real money-back guarantee in Central Texas. Not happy? We remove our equipment and refund every dollar.
- AC Prices posted online. No salesperson in your living room before you know the cost.
- 24/7 dispatch. Phones answered around the clock for emergencies. If you call after hours, you'll "meet" Beth, our digital assistant!
Backed by Our 100% Satisfaction Guarantee
Every job we do — every repair, every install, every service call — is backed by our written 100% Satisfaction Guarantee. If we can't make you happy, we'll remove our equipment and refund every dollar.
Visit Our Round Rock Shop
HVAC Department
1102 S Industrial Blvd, Suite C Round Rock, TX 78681
Plumbing Department
1102 S Industrial Blvd, Suite D Round Rock, TX 78681
Hours: 24/7 for emergencies. Office hours Monday–Friday, 8:00 AM–6:00 PM.
Frequently Asked Questions About HVAC & Plumbing in Round Rock
Yes. Round Rock is our home market — most calls are dispatched within hours and most repairs are completed the same day. Call (512) 759-8800 to confirm an arrival window.
All of them. Our technicians regularly work Forest Creek, Teravista, Paloma Lake, Brushy Creek, Mayfield Ranch, Walsh Ranch, Great Oaks, Stone Canyon, Chandler Creek, Sonoma, Vista Oaks, and every neighborhood in between — plus all of Round Rock proper from downtown to Old Settlers Park and La Frontera.
Yes. HVAC License TACLA26515E and Plumbing License RMP-37834, both Texas-issued. We're also fully insured and bonded — see our We Are Insured page for documentation.
Yes. Round Rock's hard water shortens water heater lifespan considerably, so we do a lot of tank and tankless repairs and installations here. Most jobs are completed same-day.
Round Rock municipal water tests among the hardest in Central Texas. Without softening, you'll see scale buildup in fixtures, shortened water heater life, reduced soap effectiveness, and dry skin. Our whole-home water softener installs solve all of that.
