Grand Slam Plumbing
Company Overview
Expert and Quality Plumbing Solutions.
Water Heaters, On-Demand Heaters
Water Softeners
Drain Maintenance
Remodeling
We Manage Everything
Being part of League City, we cherish our neighborhood and the kindness we receive. That’s why we started our family-owned plumbing business here.
Our company is small and family-owned. My wife and I, we commit to maintain family values in our daily work. We are dedicated to delivering top-quality service at a reasonable price. Our goal is to provide our customers with an All-Star experience and to achieve success every time.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal installation
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump 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: | 7:30 AM - 11:30 PM |
| Tue: | 7:30 AM - 11:30 PM |
| Wed: | 7:30 AM - 11:30 PM |
| Thu: | 7:30 AM - 11:30 PM |
| Fri: | 7:30 AM - 11:30 PM |
| Sat: | 9:00 AM - 11:30 PM |
| Sun: | 9:00 AM - 11:00 PM |
Recommended Customer Reviews
Our half bath sink was clogged and filling up from our AC Drain line. ( of course this happened late on a Friday night before we were to have my 12 yo daughter's birthday party the next day leaving the guest bath unusable) I put in an online request for the next day, I received an email confirming they would call me the next day. Brittani called me and had Hunter out very quickly. He was professional cleared up our drain, checked the AC lines and I also had him look at a our tankless hot water heater that was throwing a code. I scheduled for him to return and do annual maintenance on our HWH this week! Great to have great service from a local company!! Great job!!
I was having trouble with my water heater and assumed it needed replacing. The guys came out and evaluated the situation and were able to fix it without replacing it. I so appreciated the honesty and not selling me more than I really needed.
Everyone from Josh the owner, to the folks that answer the phone, to the the guys that showed up at my door were friendly and very professional.
Grand Slam is now my go to for all my plumbing needs and I will recommend them to everyone.
We used Grand Slam 3 times over the course of a month, because when it rains....surely it pours. We first re-piped the whole house. Justin and Fabian worked hard over about 3 days to get our house re-piped. They even went above and beyond to replace the sheetrock pieces they could to make our repairs easier. They were professional, polite, and efficient throughout their work. They cleaned up after themselves as much as they could, and didn't track dust throughout our house. No loud music, no cussing, very nice guys.
Then Fabian came back to fix a valve on a shower for us. Again, exceeded our expectations. He's so kind, explains things at a level us commoners can understand, and makes us feel comfortable with what he's doing.
Then our sewer line collapsed. Johnny and Steven came to evaluate it and guided us through the evaluation. Justin and Fabian came back for the work and a 6 day project was completed in 3 days! We were significantly impressed with the timeline. The excavation company Grand Slam outsourced to was very professional as well. They left our yard as clean as they could, cleaned up after themselves, and were very efficient in their work.
We also worked with Josh (the owner), Brittany (his wife), and Kelsey over the phone through all the scheduling of our projects. They were so receptive, always answered the phone, and very patient with our obvious overwhelm and frustration with our issues. Overall, so impressed with the group at Grand Slam. They're our go-to plumbers from now on. Except, we hope not to need them again too soon!!!
Janice M.TLDR: poor office organization and late arrivals leads to frustrating experience. expensive.
called grand slam for my rental property on recommendation from a friend. 3 days before my appointment i called and asked if we could move the appointment from 10am to 9am to accommodate my tenants. they said sure, no problem, we would be first on the schedule. long story short. they don't show up. like at all. 9am, i went to the property to meet the plumber and nobody shows up. 9:45am i call and ask what the deal is, they say we are on the schedule for 10am, and that they were just about to call me to let me know they'll be there at 11:30. when i told them i had called earlier that week and confirmed a 9am slot, the office person stated "oh the other girl didn't leave any notes like that" ...errrr ok. at 2pm I get a call from my tenants saying no one has shown up!!! i call grand slam they say they had "an emergency" and had to turn off the water at someone else's property. ok, but like could you call? so a 9am appointment became 2:15pm.
They finally show up and do the work (so i thought), then they call me immediately to pay over the phone and say they'll send me an invoice.
a week goes by and no invoice. i have to call for an invoice. so annoying.
turns out they didn't actually fix the problem i called them out there for.
i don't have the time or patience to deal with poor organization/scheduling, or time management issues, and i expect most landlords/business owners don't either.
they knocked off $50 from the bill for "the headache" - but the bill was so sky high i barely noticed. much more expensive than other plumbers i've used.
the owner called and offered to come back and fix the problem they never actually fixed (or told me about) for an exorbitant price. i'll pass.
My water heater failed about 3 PM in the afternoon and started leaking everywhere. I called and they made it out before 5 PM on the same day to check it out.
They said they could have it replaced the next morning, which they did. Johnny and Mathew did a good job and cleaned up after themselves.
What a blessing! I called Grand Slam Plumbing at 8:30pm because our shower kept running non-stop and we didn't know what to do. I remember a Facebook post referring the company and I took a chance and I'm so happy I did. Josh came right out and not only fixed our problem but he checked the maintenance on our water heater and faucets. I highly recommend Grand Slam Plumbing to any and everyone and the price was reasonable. Thank you again!
Scott S.The hardest thing to find are honest Auto mechanics, AC guys and plumbers. I am pleasantly surprised
To say, Grand Slam plumbing are one of the honest ones...
The woman who answered their phone was very friendly and attentive.
The plumbers were on time and very knowledgeable.
I had a water leak dripping onto the Sheet Rock. in my carport which collapsed my sheet rock.
I had roofers come out and replaced a vent and capped another.
Still leaked.
The plumber looked in my shower and saw gaps in the grout. I also had him cut a hole in the wall to check behind the handle. No problem there. I always pointed the shower at the tile seat to warm it up. That's where the gaps were.
I switched showers and the leak stopped!
My charge, $75
Great price considering I spent a lot ore on roofers.
Highly recommend this company!
Toilet had a slow leak so placed a on line request on Saturday. They came out on Monday and found a crack on the toilet tank. They replaced the toilet on Monday and everything worked great. The two technicians were fast end efficient. I would highly recommend Grand Slam Plumbing.
Lauren R.This is our second time using Grand Slam Plumbing and again are not disappointment. Got them out to the house sooner rather than later. We had several issues around the house and they were able to resolve all of them with a game plan for the future. Cameron and Justin were super friendly and professional. Thanks again!
Kristen P.Very nice owners, and a great business. Would use in the future. They care about their customers and are very attentive.

























