Alan O' Neill is the CEO of Abacus Plumbing and stands by the Abacus slogan, "You Can Count On Us."Honesty and integrity are hallmarks of the Abacus business philosophy and are the foundation upon which the company was founded.Abacus Plumbing Company comes highly recommended by Tom Tynan who has a well deserved reputation for providing unbiased advice to the Houston homeowner.You can count on the analysis of your plumbing and air conditioning and heating problem as well as their recommendations and the quality of the work. State of the art plumbing and hvac supplies and equipment mean your job is performed in a professional and efficient manner.

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Eric H.


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There are only a handful of services that truly have a staff that represent the company through the service they provide... Rare in this time.....thank you .... Keep screening your employees and hire the right ones. They are what make your company successful.

Cris B.


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Sky was everything and more as far as giving information and answering

questions. He also spent plenty of time explaining the new thermostat.

Very Satisfied Customer. Thanks.

Blaine M.


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Our HVAC technician was very professional. It was late about 8 pm-ish by the time he got to our house and I know he had to be tired and ready to go home to his family but he was just as pleasant and professional as he would be at 8 am. The reason he was late in coming to our home is the appointment was booked on a date that many of the other technicians were at some type of schooling/testing/class event so this created longer hours and more of a workload for the other technicians. He never complained about the extra work or acted like it bugged him being out late. He gave us some very valuable advice about our unit that we did not know. We purchased the house a few months ago so we were not the ones that had the unit installed.

Irene S.


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Salvador is the BEST. He is so knowledgeable, so professional so considerate. My husband and I will always ask for him when we need plumbing work. Salvador is so respectful of your property. He likes to do the job "right" and you respect that work ethic.

Kathryn C.


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Excellent professional service. Abacus tries to be on time and thorough with their "BAM" inspection program. This will be the third year we have used this service and twice a year I don't have to be too concerned with our plumbing and A/C issues. Abacus respects the client's property by wearing shoe covers to protect the floors.

Johne R.


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Ed was very friendly and did an awesome job installing my new hot water heater.

David N.


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As with our past dealings with your company, we received excellent service. Everyone we dealt with were pleasant and informative about the problem. The technician was efficient, and pleasant during the visit. He even suggested that I go on your website to get a coupon that was better than what I had. We will definitely use your company again and suggest you to others.

Tomlin J.


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I have used Abacus for a complete AC install before so I knew the service would be great. I'm happy to say the plumbing department upheld the high standards I was expecting. I checked with a few other plumbing companies and never could get a straight answer on the cost and services. Abacus gave me the price and came in right on it and performed all the services promised including taking video of the problem. Techs were professional, polite and on time. Thanks again Abacus!

Murphy L.


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My technician was very helpful and knowledgeable in getting the problem fixed (replaced gas control valve and thermopile). He also gave some suggestions (installed a whole house carbon filter system) to improve our plumbing/water situation. His work really looks good. My brother-in-law ( who was visiting) who worked for a construction company in their plumbing department was also impressed with Jason's knowledge and work. That made me a lot more comfortable in making my decisions.

Crowley T.


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My wife was really impressed! You gave use the best service of any repair company we've ever had. We've had two different technicians and both were excellent. You've done a great job in finding great employees that provide excellent service. Your phone and email communication was excellent too.

Cowherd T.


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The technician arrived promptly, neatly dressed, discussed reason for visit, how he would report findings, and went to work. After inspection of both heaters, he proceeded to explain to us with pictures what needed to be done, and explained what may happen if ignored. He proceeded to make the corrections and finalize the visit. We are totally satisfied with his visit!

Gawron S.


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I've been without a dishwasher for over a year. We bought a new GE model; had it delivered only to learn install had to wait until a hot waterline-shutoff valve was put in. ABACUS scheduled the job asap, next business day. Was informed day of appointment, tech was delayed. Customer service kept us informed of tech's eta and called after final dispatch. This was fine because we were kept informed. Really liked our plumber, his skill and respect for the customer. Intend to request him in the future. Even the DW installer complimented his work! Thanks!

Marchese M.


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Words cannot explain the awesome service we received from this company, it was Christmas Eve-closer to Christmas Day when I called this company for assistance after noticing their ad on the internet, I wasn't sure they would come out by it being after hours & a holiday, however they proved me WRONG, they were amazing reassuring throughout our conversation our heat will be on, when the tech arrived he was very-very professional & explained in detail what the problem was and made repairs in a timely manner, our heat was restored in a timely manner, THANK YOU. I was most concerned with my 95 yr old mom not being warm since the temp was dropping, I am a loyal customer now!

Zuriel N.


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As a first time customer, I was very impressed with all the personal touches of your service. I called on Wed evening, left a message on voice mail, and was very surprised when I received a return call within 5 minutes. Your company went out of their way to fit my repair appointment into their schedule the next day. The technician arrived on time, clearly explained what was needed to repair the original leak. I asked about replacing a shower head next month, and was extremely pleased that he had a choice of units right on his truck. In essence, I had two problems taken care of in one visit. What a nice surprise -- I look forward to using your company again in the future.

Malave C.


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I was very pleased with my technician. He did an excellent job. The problem is fixed. He was very knowledgeable and thorough. We have used your services for many years and have always been very pleased. Thank you.

Charlie S.


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Wonderful service! Keep up the good work!!!

Kathleene B.


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Excellent overall service. Learned a lot from the annual plumbing inspection. The technician was very knowledgeable and help install some water shut off valves for my hot water heaters.

Lasd A.


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Your technician is a true professional, very knowledgeable in his field. He did a great job for us and I would recommended him anytime. His work was outstanding and his personality really eased our minds on this big project.

Smith J.


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Randy was the best plumber I have had in my home. He went above and beyond what was asked; he was neat and clean and his work is precise and excellent. I will always ask for him.

Bledsoei L.


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This visit started out an our annual checkup. The plumber noticed that our tankless water heater needed some changes to come up to your standards. Thanks for the taking the next step.

More Business Info

"You Can Count On Us"

The Only Plumbing Company Endorsed By Tom Tynan

Regular Hours
Mon - Sun:
Extra Phones

Phone: 713-812-7070

ac coil repair ac coil replacement AC Repair AC Service Air Conditioning & Heating Air Conditioning Checkup Air Conditioning Tune Ups Condenser Coil Condenser Fan Motor Replacement Condenser Repair Condenser Replacement Condenser Unit Drain Cleaning Drain Repair Electrical Inspections Electrical Panel Electrical Repairs Electrical Service Electricians faucet replacement Furnace Inspection gas line installation gas line repair Heating Inspection Leak Detection Pipe Replacement Plumbers Plumbing plumbing inspection Repipe Surge Protection Tankless Water Heaters Water Heater Repair Water heater replacement
American Standard Air, Kohler, Lennox Air Conditioning, Mitsubishi Electric Ductless, Rinnai
Payment method
debit, check, cash, all major credit cards, financing available
George Bush Intercontinental Airport
English, Spanish

License# TACLB82488E

License# Alan O'Neill M-20628

License# TECL 30557

American Standard Customer Care Dealer

Technician Seal Of Safety

BBB Winner Of Distinction. Preferred Plumber

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