Abacus Plumbing operates across the Austin and Houston regions, providing residential plumbing, HVAC, and electrical services. Founded in 2003 by Alan O'Neill, a first-generation immigrant from Dublin with over 40 years of experience in home services starting as an apprentice, the company has expanded from a single operation into a multi-location provider serving the Houston-to-Austin corridor and surrounding areas.
The company maintains 24/7 emergency service availability, including holidays, across plumbing repairs, water heater installation, HVAC system replacement, and electrical upgrades. Every technician holds proper state licenses and passes rigorous background checks. Many HVAC technicians carry NATE certification, recognised as the industry's highest standard for heating and cooling professionals.
Abacus Plumbing has received recognition including the BBB Awards for Excellence Pinnacle Winner 2025, Angie's List Super Service Award, HomeAdvisor Top Rated Professional status, and inclusion on the Inc. 5000 list. The company operates from strategic locations in North Austin, South Lamar, and Houston, serving homeowners throughout both metro areas.