Serving Houston since 2003
24/7 emergency service, 11,750+ five-star reviews, and trucks stocked with thousands of parts for same-day fixes.
22+
Years in business
11,750+
Google reviews
4.7/5
Star rating
A+
BBB rating
24/7
Emergency service
What we do
From a leaking faucet to a full house repipe, Abacus handles it all with licensed technicians, stocked trucks, and a 100% Satisfaction Guarantee.
Leak repair, broken pipe repair, and fixture repair for residential and commercial properties. Trucks stocked with thousands of parts for same-day fixes.
24/7 emergency plumbing service, 365 days a year. Burst pipes, water leaks, sewer backups, and gas leaks.
Standard tank and tankless water heater installation, repair, maintenance, and replacement. Lifetime warranties available.
Electronic leak detection equipment identifies soundwaves from leaking pipes under slab foundations. Signs include foundation cracks, warm floors, rising water bills, and wet spots.
Residential and commercial drain cleaning for bathtub, dishwasher, shower, sink, toilet, washing machine, and floor drains.
High-pressure drain cleaning to remove tree root masses and solidified grease plugs.
HVAC repair, service, and installation. NATE-certified technicians work with Carrier, Trane, Lennox, Rheem and all leading manufacturers.
Electrical repairs, installation, and upgrades. Licence TECL 30557.
About Abacus
Alan O'Neill started Abacus in 2003 with one truck and a straightforward promise: show up on time, explain the problem honestly, and fix it so it stays fixed. That approach has grown into three locations, 11,750+ Google reviews at 4.7 stars, and endorsements from Houston's most trusted home-improvement voice, Tom Tynan.
What customers say
"I had a major House pipe water leak on Saturday night. I had already decided to not use 2 other Plumbing companies due to prior inflated prices for not so good service and terrible emergency service. Master plumber arrived after midnight assessed the problem, provided a reasonable quote and another master plumber arrived Sunday around noon to fix. Excellent results! After deep digging, Chris even did an excellent job of putting back the sod and grass."
Miguel Franco
Google Review
"I had a really positive experience with Abacus Plumbing. From scheduling to the service visits, everything was smooth and professional. Nicolas handled our plumbing inspection and was outstanding - very knowledgeable, professional, and took the time to clearly explain everything. Soufiane completed our HVAC inspection and was equally thorough and professional."
Barbara Kent
Google Review
"I had an excellent experience with Jonathan Carley and Victor from Abacus Plumbing, AC & Electrical. They were extremely professional, courteous, and respectful of our home throughout the entire visit. They replaced our garbage disposal and unclogged the plumbing efficiently while keeping everything very clean and organized."
David Flores
Google Review
"Sedrick provided an excellent experience from start to finish. He was incredibly personable, honest, and took the time to explain everything clearly so I felt comfortable and informed throughout the entire process. I never felt pressured at any point, which I really appreciated."
Anna Jo
Google Review
Our work
Abacus Plumbing serves the greater Houston metro area from three locations: Houston (4001 Kendrick Plaza Dr), Sugar Land (104 Industrial Blvd), and Austin (2106 Denton Dr). Service areas include Katy, The Woodlands, Pearland, Cypress, Conroe, Deer Park, Dickinson, Friendswood, and surrounding communities.
Yes. Abacus Plumbing provides 24/7 emergency service, 365 days a year, including holidays. Call (713) 766-3605 any time for burst pipes, water leaks, sewer backups, or gas leaks.
Yes. Founded by Master Plumber Alan O'Neill (Licence M-20628), Abacus holds plumbing, HVAC (TACLA135747C), and electrical (TECL 30557) licences. All technicians are state-licensed and background-checked. Many HVAC technicians hold NATE certification.
Abacus offers a 100% Satisfaction Guarantee on all work. Lifetime warranties are available on water heaters. The company is A+ rated with the Better Business Bureau and is Trust Certified.
In addition to 15+ plumbing services, Abacus provides HVAC repair and installation (AC and heating), electrical repairs and upgrades, drain and sewer services including hydro jetting and camera inspection, water filtration, and attic insulation.
Abacus technicians are on call 24/7. One phone call and a licensed professional is on the way.
