Abacus
Company Overview
?Dispatch fees are eliminated for first-time Yelp clients? Convenient online booking available? BBB A+ accreditation.
Abacus Plumbing was established by Master Plumber Alan O'Neill in 2003 with a singular aim: to build lasting relationships via outstanding customer care. Due to its commitment to customer satisfaction, Abacus Plumbing has become a top player in Houston and has gained respect across the country.
Abacus introduced Air Conditioning & Heating to its service portfolio in February 2012. The first year of Air Conditioning & Heating services saw Abacus assisting numerous Houston residents.
In September 2014, the company incorporated Electrical services into its offerings.
Abacus has gone above and beyond by maintaining a commitment to quality, customer-oriented care and continues to advance and lead in the HVAC and Electrical industries. Residents of Houston need only contact one company for comprehensive plumbing, HVAC, and Electrical services.
Tom Tynan states: ""For more than two decades, I've known Alan O'Neill, and Abacus is far superior to any other plumbing business in Houston
Since 1977, Alan has been involved in the plumbing industry. Starting as a plumbing apprentice in his hometown of Dublin, Ireland. Alan is a licensed Texas Master Plumber. Alan shares his life with Linda and their three kids. In his leisure time, Alan enjoys family outings and is a certified scuba diver.
Alan shares, “The soothing nature of the underwater environment is a welcome relief from the hustle and bustle of daily life.” He also takes pleasure in following Houston's sports teams, particularly the Houston Dynamo.
Business Services
- Bathtub installation
- Bathtub repair
- Circuit breaker installation
- Circuit breaker repair
- Drain installation
- Drain repair
- Electric inspection
- Electric installation or replacement
- Electric panel installation
- Electric panel repair
- Electric repair
- Wire installation
- Wire repair
- Electric vehicle charging station installation
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Generator installation
- Generator repair
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Light fixture installation
- Light fixture repair
- Outlet installation
- Outlet repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
| Mon: | Open 24 hours |
| Tue: | Open 24 hours |
| Wed: | Open 24 hours |
| Thu: | Open 24 hours |
| Fri: | Open 24 hours |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |
Recommended Customer Reviews
I called Abacus for help with my whole house generator. The generator wouldn't automatically switch the power from the generator to the house when the power went out. The electrician came out and gave me 3 different quote. The quote to just replace the switching motor in the transfer switch was over $5000. I knew immediately that he was trying to screw us big time. I bought the switching motor for the transfer switch on line for $211.00 and had it replaced by a different electrician for an additional $164.00.
This company is involved in unethical business practices and I will never even consider their electrical services ever again. This was simply an attempt by Abacus to rob someone. Stay away from them.
ABACUS is only worried about adding line items to an invoice. I just had someone leave my house who told me they *had* to replace an AC blower motor, even though that's not actually the problem, because it "might" become a problem later instead of just replacing the blower wheel that was actually causing the problem. The motor adds an additional $1600 to the total bill so it's clear why they want to add it. Complete waste of my $100 diagnostic fee and more importantly, my time. Stay away from this business.
Andrew P.I paid $89 for the BAM service a month ago and booked an appointment for a month out because they were really backed up. I knew ahead of time that refrigerant was low and wanted fill up before the heat came. They came out and performed a diagnostic and told me what I already know except and let me know that my capacitor was not running at 100%. He also stated that MAYBE the dry filter (the blue cylinder shaped thing by the outdoor unit) is blocked and it would cost about $4k to replace.
The technician could not refill refrigerant because his scales were broken. When asked if he could come tomorrow, he messaged his dispatch and it was a no and it would be another week out. He also stated that the capacitor replacement was $428 which is just way out there for a $20 part and 10min labor. I went ahead and was able to have someone local come out the same day and had my refrigerant refilled and capacitor replaced for $450. He also said the dry filter was fine.
In summary, I feel that Abacus are more for the corporate business' side than residential since prices are so unrealisticaly high. I would say they are good for diagnostics since they have more tools at their disposal than smaller companies. At most I would have them do annual diagnostics with supervision and leave service to someone else.
Joseph P.We recently bought an electric vehicle so I called Abacus Electrical to give us a price on putting at 220v plug in our garage. 1st of all, they charged me $99 just for the right to come out and try to earn my business. I should have known better then. Then, the technician quoted me just under 10k. This is simply for installing a 220 plug in a garage. When I told him I had been looking online and saw prices ranging from 1k-3k, he told me the internet was outdated and those were prices from a few years ago. I told him, there was NO WAY I was going to pay that much for a plug and he continued to argue with me telling me google was giving me "outdated information." I called another company in the area and am getting the same job done (by a master electrician) for $2500. I will definitely not be calling Abacus for ANYTHING in the future.
Abacus replaced the two large HVAC units in our home and we are very satisfied customers. Jay Rivas was our point of contact and he is very knowledgeable and exudes honesty and integrity. He explained every detail step by step of the process and the benefits we would experience immediately after install. Our air conditioning comfort is exactly what he promised. The air conditioning is balanced in every room and the humidity in our home is nice and low. With the old units we had to keep the temp at 69 and now with the new units we set the temp at 72 and it's very cool. Can't wait to see the savings on our electric bill. I highly recommend Abacus!
My electricity for my Kitchen went out after a storm. Just the Kitchen where the Refrigerator and Cooler and the outlets to the Island were not working.
Alfonso/Carmen can to inspect and give me a quote. He quoted me $600 dollars. I even repeated 600 dollars OK. At that point he could have corrected me and said no its $6,600 dollars. I would have said no. My fault for not double checking. But for the work they did was not worth $6,600, they even put new electrical outlets in the garage which was not needed and over kill.
I believe they purposely overcharge me. My advise is to not use them unless you are rich. When Alfonso charged me he said I will charge half today and said $333. I thought OK. But it was actually $3,300. They did not even do $3,300 amount of work. The amount of work they did probably amounted to under $1000. DO NOT USE THEM THEY ARE A RIP OFF!! THEY OVERCHARGE!
ITS A SCAM!
Get a second quote. Offered to replace air conditioning system for $18K or a better system for $25K. Had someone else replace for $8200. What do I know about HVAC.
Responsive and professional but rating 1 star because pricing was staggeringly HIGH! Seems unethical to me. Probably take advantage of women and elderly people.
Cynthia V.I had seen their vans in my area and decided to give them a call since they are a company name I recognized. Had them come out to do an AC pre-Summer maintenance check and was shown that my system plenum and ducts/vents had significant mold growth (thanks humid Houston). They provided photo evidence and some was visible in the vent, so I knew it needed to be fixed. Their quote was pretty steep in my opinion, but I don't really know what things cost and didn't want to call someone else out for a second quote. I was told it would be an all-day job and on the day of scheduled service, it was noon and I still hadn't heard when the crew would come out. I called dispatch and they said their truck had a dead battery - fine, but would have been nice to know because now they would be working in my house well past working hours and into dinner time. The crew did finally arrive and it took about 6hrs to complete the work, which I think they did a good job on. However, lots of debris cleanup was needed on my part, so add on another 1hr plus of cleanup on my end. Overall, the job got done to my satisfaction, but I do think I overpaid for it...that is on me, but not a company I will rush to call back for service again.
Worst company I've ever hired. I got their value plan with all around service and maintenance. Every time they visit, they leave issues behind. They break equipment and tell you that you'll have to pay them for the repair. They over charge. You get very little benefit from their value plan or whatever the official title is.
Example 1 - plumbing
Saw the problem, said they couldn't fix it, I suggested a solution and suddenly they figured out the solution. I received a heavy charge for them removing a plug from my garbage disposal.
Example 2 - water heater
I asked them to do annual maintenance. The tech breaks it somehow and tells me that it's broke and the water would no longer heat. I argued with him over the phone and suddenly it started working again. I called another tech to confirm if there was any issue. The tech from another company told me that it wasn't an urgent issue and could wait a long time before being fixed. The alternative company also replaced the system months later for a fraction of the cost.
Example 3 - AC
System fan was having issues. Abacus told me that with my discount, I would pay 199 for them to diagnose (excluding trip charge). This does not include any repairs. I worked for a major HVAC manufacturer and know that this price is on the high end. No thanks
Conclusion: I ended my membership. I will never use

























