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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Kristab G.


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My technician was a pleasure to work with. When he asked questions to understand how the problem was affecting me, I felt as though he not only wanted to fix the problem but also that he was sincere in his concern.

Wanda C.


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I really liked the attention to detail and conscientious service I received from Abacus and this technician. You are one of the finest contractors I have ever used.

Moore L.


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I called Abacus because of your 123 drainage ad and I couldn't be more pleased. My technician was very polite and very thorough. He said he wouldn't leave until the problem was completely resolved. I was able to view everything and he explained every little inch of the way. I would recommend you to my neighbors and will use you again.

James I.


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The technician was exemplary and a credit to his employer. Great service - I will return to this company for any other HVAC needs as a result.

Jaun E.


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When anyone is inquiring the use of a plumbing company I will refer them to Abacus. You made an unpleasant and potentially very expensive problem much easier to deal with. I want to thank you Bob and the rest of your company for taking care of us

Patricia T.


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I could not have written a script for a more satisfactory service call -- technician, work, price. Everything was as near perfect as anything can be.

Garcia C.


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I am very pleased with the service my technician gave me. He really knows what he is doing. I will call Abacus if I ever have any plumbing issues.

Bertha E.


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The technician was friendly, humorous, personable and overall, not hard to understand or trust. Would I recommend Abacus Plumbing? YES!!!! It seems to me that you have high standards for employees.

Thomas B.


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Excellent work as always. Your on-going commitment to providing the best service is the main reason why I enjoy using Abacus. Simply Outstanding!

Lenora P.


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From 1 to 10, I'd like to propose an 11!! Abacus is #1 on my vendor list!

Daniel A.


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Justin, our Abacus technician, was efficient and very professional. We are once again VERY satisfied Abacus customers and will be using Abacus in the future for our plumbing needs.

Lawrence T.


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Chris is a very friendly and professional employee.Very unusual to see a guy like Chris, as compared to the average plumber / company.



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On the day of installation the HVAC Tech was there to see my job thru completion on his DAY OFF! Hats off to the team that worked my install!

Harris H.


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I had a running toilet and noise in pipes. Tommy was awesome. Decided to get new toilet and he did an awesome job. He was very professional and pleasant.

Clay S.


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I had a terrible experience with these guys. The A/C tech showed up, made a very cursory survey of my units (didn't open a single panel) and made an estimate. The prices were astronomical! He didn't consult a price book, or even open up any of the equipment to verify that the remedy he proposed would fix the problem. In fact, when I requested that he further check the system to at least ensure that the over $4,000 repair he proposed would work, he said that such a check would be over $300. As an added bonus, this little visit cost me $50 from the get-go, because this is one of the few companies in town that charge for their estimates. I thought that meant that since they were getting compensated for their time regardless, they were more likely to make an honest recommendation. Boy, was I wrong!

It was unreal; I was livid. I politely ushered him out, and called another company. Within 12 hours, the problem was fixed by another major Houston A/C company and every single fix they proposed (the same remedies) were at least 33% less - some as much as 1/4 of the price! Look at the other reviews; my incident is not isolated. Avoid these shysters! I found the help I needed from ABC - they deserve the good press for their honest work.

Joseph H.


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Allow me to reinforce that your business practice at Abacus of having the same person visit your home year in and year out makes a big difference. They know the layout they know the dogs, etc. Keep it up!

Urena R.


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I'm an Abacus BAM member..they do a great job reviewing our systems and making recommendations to help improve performance.

Ronald P.


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Called Abacus about a plugged sink drain. Their service was quick, efficient and professional.

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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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