Austin's Award-Winning Home Service Experts
Plumbing, air conditioning, heating, electrical, and water quality services - all from one trusted team. Serving Austin 24/7, including holidays, since 2003.
Services We Offer
From emergency plumbing repairs to whole-home electrical upgrades, Abacus handles it all. One company, one call, every home comfort need covered.
Plumbing
Full-service plumbing from emergency repairs to complete repiping. Our licensed plumbers handle everything from clogged drains to slab leak detection.
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Air Conditioning & Heating
Keep your home comfortable year-round with expert AC and heating repair, installation, and maintenance. We service all major brands.
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Electrical
Safe, reliable electrical services from panel replacements to outdoor lighting. Our electricians are trained to handle residential projects of every size.
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Water Quality
Improve the water your family drinks and uses every day. We install and service water softeners, reverse osmosis systems, and carbon filtration.
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One Call Covers It All
Plumbing, HVAC, electrical, and water quality - all from a single, trusted company. No more juggling multiple contractors.
Available 24/7, Including Holidays
Emergencies don't wait for Monday morning. Our team is ready around the clock, every day of the year.
23+ Years Serving Austin
Founded in 2003, Abacus has built its reputation one satisfied customer at a time. We're your neighbors, and we're here to stay.
Award-Winning Service
BBB A+ rated with 17 Awards for Excellence. Voted Austin's Best Electrician 2024 and 2025 by the Austin American-Statesman.
Licensed Master Plumber on Staff
Our founder Alan O'Neill holds Master Plumber License M-20628. Every job is backed by decades of hands-on expertise.
Upfront, Honest Pricing
You'll know the cost before any work begins. No hidden fees, no surprises on your invoice.
What Austin Homeowners Say
"I have used all aspects of Abacus including plumbing, heating and AC, and electrical. I have always found their work to be exceptional. I highly recommend Abacus and have referred my friends on several occasions. Abacus is always my go to company."
"ABACUS is the only one that has bent over backwards to service me with fair pricing, quick service and professional personnel."
"This is the first one I am overly satisfied with in all aspects. They did a very professional job. They left everything clean upon leaving."
"I would recommend to anyone who could afford to pay a high price for high quality work."
"Every time I've used your service I've been pleased. Your prices are appropriate and the servicemen are well trained and knowledgeable."
Join the Abacus CLUB
Our VIP Maintenance Membership gives you priority scheduling, annual inspections, and extended warranties for $29.95 per month. It's the easiest way to keep your plumbing, HVAC, and electrical systems running smoothly and catch small problems before they become big ones.
Learn About MembershipProudly Serving Greater Austin
Two convenient locations covering North Austin, Downtown, Round Rock, Cedar Park, Pflugerville, and surrounding communities.
Ready to Schedule Service?
Available 24/7, including holidays. One call covers plumbing, HVAC, electrical, and water quality.