Abacus Plumbing, Air Conditioning & Electrical
8th year as a Best Pick
Best Pick 2018
certified company
Based on 597 Surveys
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Abacus Plumbing, Air Conditioning & Electrical has received 5 out of 5 stars (A-rating) based on 597 customer surveys conducted by Best Pick Reports.
8th year as a Best Pick Call
"Honesty and integrity are hallmarks of the Abacus business philosophy and are the foundation upon which the company was founded. 'You Can Count On Us' 24/7, including weekends and holidays. We look forward to providing you with extraordinary service."

Alan O'Neill | CEO
Company Information
Services Offered
Abacus provides plumbing repair, installation, and inspection for water heaters, tankless water heaters, water softeners, water filtration and treatment systems, sinks, toilets, fixtures, garbage disposals, and gas lines. Abacus offers repiping, annual plumbing inspections, and slab leak detection as well as drain and sewer cleaning, repair, and replacement.
Services Not Offered
Abacus does not offer septic system work.
The company offers a 100 percent customer satisfaction guarantee.
Company History
Abacus was founded in 2003. CEO Alan O'Neill has over 40 years of plumbing experience.
Abacus was awarded the Best of Readers' Choice Award by Living Magazine.
Employee Information
Employees wear uniforms, drive marked vehicles, and undergo background checks and drug testing.
Areas Served
Cypress, Katy, Conroe, Cypress, Spring, Tomball, Missouri City, Richmond, Stafford, Sugar Land, Bellaire, Houston

“Everything was great. Very efficient, timely, showed up on time, it was very professional. It was great. Abacus did plumbing work for me. I would grade my overall experience with them with an A+. I would highly recommend them.”

“I liked everything about Abacus. They fixed our clogged toilet. They earned an A+. There wasn't anything where I was not happy. Everything was excellent. I would highly recommend them.”

“They were great. The men that came in were very professional, and they told me exactly what they were going to do, what door they were coming in, and when they were coming back. I mean, they told me everything I needed to know. I wasn't leery about any of them. They were professional. They knew what they were doing. They're great. I used them for my air conditioning, and they've done plumbing for me. I would rate the overall experience with an A+. When I was having air conditioning done, we had scheduled two or three appointments, and they would call and would tell me why they weren't going to be here because older people were having troubles with their air conditioners, and they felt like they needed to do older people first. I said no problem, that's just exactly what we need. I would highly recommend them to a friend.”

“No complaints so far. They did plumbing work So everything went great. The work was A+. Everything was good, excellent. I would recommend them, and have recommended them. My brother is a regular customer with them.”

“I am satisfied. On the electrical, there was a problem afterward, but they came right back and repaired it at no charge. The box that they used was an outdoor box and it got wet and shorted out. They put a different kind of outdoor box on it, and it's been fine ever since. I would give them an A rating. They were great. I would highly recommend them.”

“They were very responsive. They corrected the problems that I had—there were a few problems. They were responsive to my situation. They repaired significant plumbing issues. They repaired the pipe from the property to the city line. I would grade the overall experience with an A+. I would highly recommend them to a friend.”

“They were attentive and on time. They were checking our plumbing system. Abacus gets an A+. I would highly recommend them.”

“I like their personality and their professionalism when they come in my house. They installed two different water heaters, installed a sink, and repaired a gas leak in my fireplace. Abacus earned an A+. I would highly recommend them.”

“They were prompt, they let me know who was coming to do the service, and they were on time. They repaired a clogged drain. They earned an A+. I would highly recommend them to a friend.”

“Abacus did a good job. I liked that they were on time, they cleaned up behind themselves, they did what they said they were going to do, and they were polite. I had the plumbing group out and then I had the electrical group out. I would rate them as an A+.”

“I believe they did some work for me earlier in the year. They always come within the window that they tell me. They're quick to call me back whenever I called to try to schedule an appointment. They had very good customer service. They did quality work as well. Abacus gets an A+ overall. The customer service, cleanliness, and punctuality was the best part. I have recommended them.”

“I liked the overall expertise and the quality that they did. They definitely knew what they were doing. They redid all the water pipes in my house. They get an A.”

“They were quick to respond. They cleaned out our kitchen line. I think it was my kitchen line, the main that went out, that was clogged. It was excellent, with no problems. I'd be very likely to recommend them to a friend.”

“That was a long time ago. They're persistent. They gave me the quote. The job took a lot longer than they thought because the whole system, the whole waterway was backed up. They persisted and got it all fixed in several hours and they did a really good job. It was on my kitchen sink. They deserve an A. They did a good job. They were pleasant, which is always excellent. They just kept at it and they got it done; it was really backed up. They're still working hard. I would recommend them.”

“They were very quick, courteous. They did plumbing work for me. I would give Abacus an A and I would highly recommend them.”

“We had a good experience. The gentleman was on time, friendly, and efficient. He just did a minor little plumbing leakage in the sink. It was a good experience. Excellent.”

“They were able to make it there the following the day, which was great. Everything went well. They get an A. I would recommend them.”

“He did an excellent job. He got it done right away. He was very professional. They replaced a pipe. They earned an A. He did an excellent job. I would recommend them.”

“They show up when they say they will, and they always let us know when they're on the way. And they're extremely reliable. They've done several jobs here. I don't remember what the most recent was. I've had them for plumbing and HVAC. I'd rate them as an A overall.”

“I wasn't really there while they were there. It was an easy process. It wasn't difficult or anything. They replaced my plumbing line. I'd give them an A+. I haven't had any problems with it. I guess I really won't know if it's all fixed until I have any issues, but I haven't had any.”

“They were professional, courteous, on time, did what they said they were going to do and cleaned up. I thought they were thorough and well run. I had a pretty major leak under the slab that they had to mitigate. Given the situation, I'd give them an A+. First time I ever used them, and they came through in a pretty bad situation really well.”

“They were very thorough and explained everything that was going to happen. Most recently we had an electrician, but we've had a plumber and an electrician in the past, and everybody's been very professional and very good. I would definitely say it was A+ work. We have recommended them.”

“It wasn't anything major that they were doing. It was an easy fix. They were just looking at a leak that we had underneath our dishwasher. I would give the overall experience an A+. Again, it was nothing complex, all they had to do was tighten a pipe. I would recommend them.”

“They're just very professional. I had low pressure in my dishwasher, and they found the problem and fixed it. I'd give them an A+ rating.”

“The person Abacus sent was very personable. They did plumbing. It was prompt, and he fixed the problem. They earned an A.”

“Abacus got the job done. They did routine plumbing under the cabinets. I'd give them an A overall. It's good.”

“He was cooperative, working with the water company and having to come back for the water to be turned on. That was good. He was repairing some plumbing. I'd give it an A. I would recommend them. Except the people at the front, sometimes they have problems with the scheduling.”

“I don't really remember, it's been a while. But I just remember we were definitely happy afterward. It was for plumbing. I'd give them an A rating. I'd recommend them.”

“They were on schedule. Abacus did plumbing work for me. I would rate them as an A. I would likely recommend them.”

“Basically, Abacus didn't give up until the problem was solved. They did plumbing. They unclogged a drain. I'd give them an A overall.”

“I like that they came out the same day I called them. They did plumbing work. I'd give them an A- overall.”

“They showed up on time. I'd give them an A grade.”

“They always answer their phones. They always get you on their schedule and their people show up on time. They did A/C and plumbing work. I'd give my overall experience an A.”

“It was just a quick job I needed help with, and they got it done. The job was just a strap in a gas pipe. I'd give them an A rating.”

“Abacus did a good job for me. They replaced plumbing in my attic. I would grade the overall experience with an A. They didn't show up the first day. I would recommend them.”

“They diagnosed the problem correctly and fixed it. That's what I liked. We've used them for an HVAC unit and plumbing issue. I'd give them an A grade. I would recommend them.”

“I've used Abacus for years and they're good. He did a plumbing job. He fixed the sink. They get an A.”

“They did a pretty good job. I have no issues with them. I think they were pretty expediting. We called them and they showed up the next day, which is very nice. They were able to send their plumbing guy out within a day or two. So it's just a pretty expedited and smooth process. There was a pipe leak inside the home. I think it was a sewage water pipe that the previous owner had nailed into with a nail. When we took out the nail, it started leaking. I would say they get an A overall.”

“That was a while back. They were fairly responsive. The guy that actually came out did a good job explaining what the issue was. They came out to examine a leak we were having and do kind of a minor repair to fix the leak. It was a leak in our bathtub that was causing water to come downstairs. I would grade them as an A.”

“We were very satisfied. Very reliable, they showed up on time. They gave us all the information, answered all the questions, they made recommendations, they gave us the cost estimate and stuck to it. They did plumbing, a gas line on the balcony to our grill and they did some electrical work. They exchanged a plug. I think that was it for last year. I would give them A+. I really don't have any complaints.”

“I liked that they were friendly, on time. Alright. They've done A/C replacement and plumbing inspection.”

“Their knowledge; they were just good working guys. They did some plumbing.”

“They did a very nice job, and they were very professional, and I will use them again. They worked on the plumbing.”

“Abacus Plumbing did a great job for our office. Wayne, the technician who served us, was very pleasant, thorough, and kind. When I explained what I wanted to install, he was knowledgeable and even offered suggestions. In the future, I will call Abacus for any projects or repair I need—A+.”

“Best customer service I have ever received from a plumbing company. We will never use anyone else. After one service call, we became lifetime customers—A+.”

“Excellent service provided by extremely professional technicians—A+.”

“Abacus employees have been 100 percent professional and courteous. It might seem like a small thing, but I appreciated their use of disposable shoe covers while walking on my new carpet.”

“Courteous, on time, competent.”

“Great Service and a good value.”

“We are well pleased with the work that Abacus has done for us and plan to stay with them whenever any wok is needed around our home.”

“The service provided was very good. The plumber sent was courteous and knowledgeable.”

“I was satisfied with the work that Abacus Plumbing did. They were nice and Friendly.”

“We were very happy with the service we received from Abacus Plumbing. They were very professional.”

“The work once completed was very good. However, when we first we called, they responded right away but they did some work but didn't find a leak until I called the next day because the unit was running but no cool air and our house was all foggy from the Freon leak and the air stopped cooling. I called again and they came out again, and fixed and replaced all. Then the final result was wonderful.”

“As always, Roland was on time and fixed the problem. He is always courteous and helpful. We always call and request him.”

“Very professional and prompt. I had an emergency and was sick and stuck in the house with no hot water, they came and had it fixed within two hours of my call.”

“Randy did an excellent job installing an additional gas line along with locating a gas leak in our home.”

“We have been longtime customers and as a whole very pleased. Was disappointed to find out our new water heater was installed incorrectly yet pleased you rectified without charges.”

“Very professional and quality work completed by Abacus technicians. I would highly recommend this company for anyone's HVAC or plumbing needs and I will certainly use them again when the need arises.”

“They were quick, they were on time, and they did a good job. They repaired a water leak in my bathtub. I chose them because I got tired of calling another company. I'd give this company an A+.”

“The person was very nice and professional. He did a good job. He replaced my hot water heater. I chose them because they had good ratings. They're an A+.”

“They knew exactly what they were doing, which was nice, and they guaranteed all of their services, which is the reason why we went with them. They're a reliable company. They came out for an estimate on a couple of things, but the main thing that they did is, we had an electric tankless water heater put in on the plumbing side. Then, the electrical workers came in to make sure it was all hooked up properly. We had a temperature issue, but that was on the plumbing side, and they fixed it right away. My parents had had work done with them, so they recommended the company to us. I would give the company an A-.”

“I used one of the companies in Best Pick Reports—Abacus. I used them for a tankless water heater. I had a good experience. That is all they've done for me. The customer service was fine. They get an A from me.”

“I like that they're honest. The three guys that I had out there were open and honest about what needed to be done and what didn't need to be done. They're very courteous and professional. The first time we had them come out, they installed an igniter onto the existing water heater, and then they put in a water filtration system. The last two guys were out for air conditioning work, and the second guy had to come out and put some Freon in one of our old existing air conditioning units. I would rate them as an A-grade company.”

“They're really professional in their attitude, they answered all of our questions, they took the time to listen to what it was that we were asking, they gave us the information that we wanted, and they fixed the problem. With the plumbing issue, we had a situation with our kitchen sink, which they fixed. Then, we had some questions about the performance of our water heater, and they answered our questions about that, too. I would recommend them to a friend or neighbor. I would grade the company as an A.”

“They just did everything that they said they were going to do. They installed a toilet and installed a water heater. I heard some reports about the company, and that is why I chose them.”

“They let me know when they're on the way, and they do the job right. They installed a faucet and a pipe. I chose them because people said that they liked the service. I would give them an A.”

“We've used them for years with no issues. They did some plumbing work recently. We used them for years—we just always call them. They're a grade-A company.”

“We've had them a couple of times. The whole thing is great, the service is good, the people they send out are very capable, and I have no complaints. They did two different things. Once, somebody actually cut our outside pipe for the water, and the water was all over the place. They came in and repaired that. The other problem was, we had a leak in the house, and they came in and looked at that. I would give them an A.”

“They just did a good job with their work. It was the first company I found. He did a shower repair. I'd rate them as an A.”

“They did a good job for me. I was well pleased with the results, and they did it quickly. Someone recommended them to me. They installed a hot water heater. They're an A-rate company.”

“They showed up when they said they would and completed the project when they said they would, and in that regard, the service was handled professionally. They replaced one-half to two-thirds of the house's original plumbing with a new pipe system. I'd give them a solid A grade.”

“The people from Abacus know what they're talking about, and they do the work. They installed the NuvoH2O water conditioning system, and they put in a new hot water tank that heats as you're using it, which is just wonderful. They get an A+ because they really helped me out a lot.”

“They were very professional, courteous, and polite, and my wife was impressed with how clean they were and how nicely they explained the problems and the solutions they proposed. We signed up for their plumbing contract, so they did a general inspection and then diagnosed a problem with a drain. I'd rate them as a solid A.”

“I liked everything about Abacus. The technician was clean, neat, and very personable, and he knew what he was doing. They changed two bathtub faucets and sprayers—A+.”

“They were very professional, efficient, and friendly, and they did a good job. They replaced all the plumbing in my house. I chose them for their reputation. I would give Abacus an A+.”

“Abacus Plumbing did a main sewer line replacement, and then they did an assessment of my water distribution lines in the house. I think that they were more technically proficient than most I've had experience with. They were cordial and very professional—it was just an overall positive experience. I'd give them an A+.”

“Abacus Plumbing put in a new hot water heater. They got here when they said they would and did what they said they would do for what they said they'd do it for. I just knew a little about them from what other people had said. I'd give them an A+.”

“The plumber from Abacus came on time, did a good job, and left. He replaced the cartridge in the bathroom. I would give them an A+.”

“The plumber's knowledge and ability to fix our problem made it a positive experience. I had three plumbers out here before him. We had a water line break in the slab. He managed to isolate it and turn it off, so our foundation wasn't totally eroded. It was the weekend before Thanksgiving, the in-laws were coming, it had been going on for a week, I'd had three plumbers out here, and nobody knew what to do. The last one cut a hole in the wall and left a mess. The guy from Abacus Plumbing came out on Saturday and fixed it all and cleaned up the other one's mess. I cannot say enough nice things about it. We chose Abacus because they were the first people who said, 'Yes, we can send somebody out tomorrow. We will find the leak, we will fix it, and somebody will be there working until it's fixed.' They're A+. We have recommended them to other people, too.”

“Abacus Plumbing fixed a water leak on my line right next to the water meter. They were friendly, pretty professional, and got the job done as needed. I would grade them an A+.”

“I called them on a Sunday, they came the same day, and they repaired the problem in a couple of hours. They fixed a leaky showerhead that was leaking in the shower and behind the wall. I called someone I knew that uses plumbers often, and he recommended them. I would grade them an A—good service, and no complaints.”

“There was a pipe leakage—it had burst—so Abacus Plumbing came to see what needed to be done, and they did it. They came out early in the morning. Everyone else we called, it would have taken a while, or they weren't available. Abacus gets an A.”

“We were very pleased with Abacus Plumbing. They actually called and said that they could come sooner than they had anticipated, and they were able to save us and get the work done quickly. We were quite happy. They actually ended up having to replace the valve on the main that connects the water meter to our house. That was the main thing we called them out for, and they had to do quite a bit of work to do that. We'd actually worked with them a couple of years earlier and had good results. Abacus is an A.”

“It was friendly service. The guy from Abacus was really clean with his work and really friendly. I had a plugged drain in the sink. I would go with an A for them.”

“Abacus Plumbing fixed a clogged dishwasher line for me. In summary, everything was great. They did a great job, and I didn't have any issues with them.”

“They replaced a section of pipe that was covered with roots. I would give them an A. They knew what they were doing, and they did it well.”

“The gentleman that came to do the work was very pleasant and easy to work with. He replaced some pipes under our sinks where we had a leak, and then we had some old pipes that needed to be replaced, so he did that, too. My husband chose Abacus Plumbing. I tried two or three different companies, and I didn't like them, so I thought that I might try Abacus. Also, I heard from another homebuilder, and he recommended Abacus. He said, 'You might want to call Abacus. They do a good job.' I'd give them an A.”

“I was needing someone to come after hours, and the guy was really nice. They didn't fix it the first time, but he came back and fixed it. He found the problem—it was a plumbing leak. Abacus gets an A.”

“They did plumbing work. The plumber was friendly, and I would give them an A.”

“We had Abacus Plumbing here a while back replacing the water heater, and overall, I would say it was a positive experience. I liked the quick response. I'd heard of them before so I knew that they were a reputable company. I would grade them an A.”

“Abacus did plumbing work for us. The guy that came out appeared to know exactly what he was doing. He explained everything very well and went through the whole process with us—what needed to be done, what the costs were going to be, and so forth. Then, when he got the parts in, he returned and installed everything. We don't have any complaints. I would give them an A.”

“The service person from Abacus Plumbing was fantastic. He came out and inspected all of our stuff and made sure we had no problems in the house. He was able to get out here very quickly and solve my problem. Abacus is great, and they deserve an A+.”

“I liked the high quality of the work from Abacus Plumbing. They replaced a hot water line and fixed a fitting that was causing a leak. I would give them an A+.”

“Everything about using Abacus was good. The job they did, the friendliness, the customer service of the technician—everything about the experience was positive. I had a leak in my tub, so they came and replaced the pieces and installed a new faucet and faucet overflow. The technician was so good. They're an A+.”

“Abacus Plumbing has actually done work for us within the past couple of weeks. I had a plumbing problem with an unusual requirement, so by using resources that they had, they researched the equipment that I needed and came up with a product that is so new it's not even on the market yet. It's literally the only one that can solve the problem. It was a little bit of repair and replacement. We had a major repair, but this was a new part. By unusual effort on their part, they found this brand-new product that wasn't even on the market yet and couldn't be found anywhere else, and they fixed the problem. The gentlemen had fabulous attitudes, and they were very respectful of my home. They did everything in a timely fashion. It's an A+.”

“We use Abacus for plumbing. They fixed the toilet, unclogged the drain, and put in a plumbing fixture. They did an excellent job, and I would use them again in the future. They're an A+.”

“Abacus Plumbing has done some work for us in the past. They were out here three times. They fixed a clogged drain, changed a water heater, and fixed a water main break coming into my house. The quality of work they did was excellent each time. I thought the technicians were courteous and did a good job. I'd give them an A+, and I'd tell a friend or a relative to use them.”

“They showed up on time. They're very clean and left the area neat, and they're very polite. The last time I used Abacus Plumbing, they replaced two water heaters. The time frame they completed the work in was excellent, and the quality of work is excellent, too. The workers that came out were very nice, very polite, and were in uniform. I trusted them near my home. They called back, followed up, and it's all good.”

“Abacus Plumbing did work for me a while back. I thought they were excellent, and they did a great job. We had a leak that needed to be taken care of, so they took care of everything that was necessary and cleaned everything up. Their customer service was excellent. That was my first time using the company. I would give them an A+.”