Contact Us Now:
56 Years of Excellence
A 3rd Generation Family Owned Business
Sandtech – S. T. Construction Corp. in Houston, TX, provides residential and commercial construction and foundation repair services to the Greater Houston area. We have been in operation since 1968, so you can count on us providing quality work from an experienced team. We offer free quotes on foundation repair. Our company is licensed and insured and every project will have an on-site supervisor so your project, no matter how big or how small, is guaranteed to go as smooth as possible. We work with your schedule and provide competitive pricing. Give us a call today to learn more. We can be reached at
713-645-4824. We have had the same phone number for over 56 years!
Under-Slab Plumbing Specialists:
Under-Slab Plumbing Repair
Review from Jacob and Carly G
05/08/2024
"My wife and I were referred to S.T. Construction by
individuals in our neighborhood during the freeze
of 2021. Our house was damaged by broken water
pipes and house was completely destroyed. Stacy
came to our home and immediately had a crew start
tearing out all water damage. We also contacted
our insurance adjuster and Stacy met with him also.
We always had communication with their office
everyday during all repairs for a total of 3 - 4 months.
Home was completed and we moved back in.
On several other occasions, my wife and I have used
S.T. Construction for odds and ends for our
house. We will definitely use S.T. Construction in the
future if needed. Stacy and his employees are
like family to us now and welcome anytime at our
home. JSG / CAG"
Review from Meridith K
05/03/2024
"Sandtech is great! I’ve had them service multiple
properties of mine from flood damage to roof
leaks. They’re always there when need them. I’m so
grateful for Stacey, Bobbi and the crew!"
Review from Cindy K
04/25/2024
"Sandtech construction has done work for me for
over thirty years. They have completely remodeled
two houses for me. They did an amazing job on both
projects and have been amazing in their follow
through even after the big projects were finished.
Over the years they have done plumbing, drainage,
roofing electrical foundation. You name it They fix
it. I have never worked with a better company.
Their work is meticulous and their crew is wonderful.
I've never given anyone a key to my house but
Sandtech has one. I know I can trust them and feel
safe with them in the house. My house flooded
and Stacey came over in a hurricane brought pumps
and helped me save it. My college age daughter
was house sitting while I was out of town and a pipe
broke in the ceiling. Stacey was there in 20
minutes Got everything under control and then
replaced all the old pipes in house. Stacey Schaaf is
one of the finest men I know. He's honest,
trustworthy and is an outstanding contractor.He can
and will figure out a way to fix anything. He has
always been more than fair in his prices and I
honestly feel I should have paid him more.
Thank you Stacey and Sandtech. You have my
business forever."
Review from Mary M
04/25/2024
"I have had ST Construction complete numerous
jobs for me over the past twenty years including
replumbing my entire house, adding an additional
bathroom, remodeling my kitchen, and most
recently leveling and adding to my driveway.
They have been professional, honest, and
competitive with pricing. Communication has never
been an issue. They stand behind their work and
always clean up at the end of the day. I would
recommend this company."
Tanya S.
"She is very happy with the repairs and so glad I recommended them and she would highly recommend them to anyone else and she would be gladly be a reference for them as well."
Carolyn G.
"Thank you! Invoice received. It was a pleasure doing business with you guys 😊. I am very pleased & impressed with their work & being on time.
I will recommend your services to others. Thanks again!"
Maryann and Paul B.
"Maryann and I wanted to let you know how pleased we are with the job that Sand Tech did in restoring our home following our unfortunate water leak. The materials and workmanship are excellent, but frankly we expected that from a contractor recommended by USAA. What stands out to us is the diligence with which the job was pursued, and the dedication that was shown to meeting every commitment made by our company. Those things are due to the professionalism and hard work of Stephen, "our" project manager. He made a promise that he was there for us to make our lives easier. He more than met that promise.
Each of us spent large parts of our working lives in Goverment contract and project management. We know excellence in those areas when we see it. Your company meets those standards of excellence..."
Nallely T.| 05/14/2024
"Stacey and his team completely blew out my expectations. From beginning to end they were very professional and honest. Bobby, project manager, always kept me informed on the step by step when redoing my master bathroom. Even though, there were little set backs throughout the process, the job finished before the expected time. Would highly recommend them to anyone needing help with their bathrooms. I know, me and my family will be clients for life!"
Sarah W.| 04/13/2024
"I had a fire inside my house with extensive smoke damage. SandTech started from the studs and redid my entire house. They were professional and courteous and easy to work with. They worked very efficiently with my insurance company also. They redid my entire house interior better than it was before the fire. I would recommend them to everyone."
Regan B.| 04/05/2024
"This company was amazing. They came in and did an outstanding job on water damaged house.timely and communication was excellent."
Letty O.| 02/08/2024
"My review is years overdue. A pipe blew out on our water heater and caused lots of water damage throughout the house. My insurance recommended this company to complete our repairs. We were very satisfied with their communication, thoroughness, and craftsmanship. Would definitely use again if the need ever arises and highly recommend."
Lori| 06/18/2023
"We hired sandtech to do work at my 90+ year old father's home. We had used them previously for foundation repairs. This time we had water pipes replaced throughout the house.
Everything seemed great but after sheetrock repairs following the water pipe installation (sandtech GC'd all), the sink was clogged. Sandtech sent plumber to unclog and they didn't get it unclogged.
I called again a few times but they came back and never made it right . Disappointing,. Shame on us for paying beforehand. Sad for my Dad cause it was a big expense!
This company has come through and fixed the issue...my faith is restored and
i really appreciate the response and help. I would recommend ST Construction without hesitation"
Samuel M.| 03/21/2023
"Best contractors I have ever worked with, no need to look anywhere else. Highest 5 stars for integrity, quality, communication at a fair price. I had a house disaster and my insurance agency, USAA, recommended Stacy and the team. Best repair experience I have ever been involved with. From water mitigation, framing, sheetrock, painting, tile, plumbing, these guys do it all at a high level. And left a clean job site once complete. Happy to recommend."
LaNita W.| 07/22/2022
"Excellent work and a pleasure to deal with!"
Heidi B.| 04/14/2022
"Thank you Tony for being fast and for helping in getting the inspection report that same day!"
Lisa M.| 06/19/2021
"After many years of putting off some much needed foundation work, and after seeking estimates from 3 different companies, we chose to hire Sandtech for our foundation repair. The bid was right in the middle of the others we received, but the detailed measurements, explanation of the work to be done, and the thorough inspection of the house was far superior. The scheduling was a bit of a challenge at first because they were backlogged with plumbing jobs after winter storm URI but they managed to get us on within a few weeks from the time we contacted them. The team assigned to our project was awesome! They were at our house ready to go before 8am every day and they worked incredibly hard and very quickly to get things done. Since our house was sinking in the middle, we required both interior and exterior piers (about 23 total). Throughout the process they kept us informed, showed us what they were finding (we had some huge roots under our house!) and left the work site super clean at the end of each day. We were able to stand in the house while they lifted it and we could literally see the cracks in the walls fuse back together..."
Dee G.
"These guys are GREAT!! They answered my distress call later in the evening. Were out to fix the problem early the next morning! Fast work, professional, courteous, cleaned up better than when they arrived. I know I can call them for anything and they will not only fix the problem fast, but are reliable - they even show up early! Highly recommend them!!"
Thomas P.
"I had another plumbing company out who performed a static and isolation test and found that I had a leak in my sewer line under my house which would require about 20 feet of tunneling to fix. I asked for some repair company recommendations from an engineer. He recommended SandTech. I got a total of 4 quotes for the repair, and SandTech was right in the ballpark with the other quotes. SandTech was the only company that not only back filled the tunnel with normal tamping, but also followed up with a slurry injection to aid in filling any areas not completely filled. Their workers were here when they said they would be here, worked quickly to complete the project ahead of schedule, and returned everything just as it was before they got here. They completed the repair as expected, and there were no surprises on the final bill. I could not have asked for a more professional experience. I NEVER leave reviews for anything because I am too busy, but I could not let this experience go without leaving feedback. If every contractor worked like this, I wouldn't dread doing more projects around the house."
Nancy P.
"I have nothing but praise for Sandtech and the work they did my new roof. Robert was helpful from day 1 when he arrived to do the appraisal for USAA insurance. He was flexible with my schedule and the crew that worked on my roof that day was top notch. I was actually concerned about stray nails/roof tacks being left behind in the yard as I have dogs and wouldn't want them picking up any in paws or eating one. They were through and used a metal detector to find any stray nails and left my yard picked up and clear of any debris of old roof. I would recommend them to friends and family and use them again in the future."
Barbara
"They did an outstanding job. My kitchen is georgous. Everything is done to the top quality of workmanship"
Review from Jacob and Carly G
05/08/2024
"My wife and I were referred to S.T. Construction by individuals in our neighborhood during the freeze
of 2021. Our house was damaged by broken water pipes and house was completely destroyed. Stacy
came to our home and immediately had a crew start tearing out all water damage. We also contacted
our insurance adjuster and Stacy met with him also. We always had communication with their office
everyday during all repairs for a total of 3 - 4 months. Home was completed and we moved back in.
On several other occasions, my wife and I have used S.T. Construction for odds and ends for our
house. We will definitely use S.T. Construction in the future if needed. Stacy and his employees are
like family to us now and welcome anytime at our home. JSG / CAG"
Review from Meridith K
05/03/2024
"Sandtech is great! I’ve had them service multiple properties of mine from flood damage to roof
leaks. They’re always there when need them. I’m so grateful for Stacey, Bobbi and the crew!"
Review from Cindy K
04/25/2024
"Sandtech construction has done work for me for over thirty years. They have completely remodeled
two houses for me. They did an amazing job on both projects and have been amazing in their follow
through even after the big projects were finished. Over the years they have done plumbing, drainage,
roofing electrical foundation. You name it They fix it. I have never worked with a better company.
Their work is meticulous and their crew is wonderful. I've never given anyone a key to my house but
Sandtech has one. I know I can trust them and feel safe with them in the house. My house flooded
and Stacey came over in a hurricane brought pumps and helped me save it. My college age daughter
was house sitting while I was out of town and a pipe broke in the ceiling. Stacey was there in 20
minutes Got everything under control and then replaced all the old pipes in house. Stacey Schaaf is
one of the finest men I know. He's honest, trustworthy and is an outstanding contractor.He can and
will figure out a way to fix anything. He has always been more than fair in his prices and I honestly
feel I should have paid him more. Thank you Stacey and Sandtech. You have my business forever."
Review from Mary M
04/25/2024
"I have had ST Construction complete numerous jobs for me over the past twenty years including
replumbing my entire house, adding an additional bathroom, remodeling my kitchen, and most
recently leveling and adding to my driveway. They have been professional, honest, and competitive
with pricing. Communication has never been an issue. They stand behind their work and always
clean up at the end of the day. I would recommend this company."
Tanya S.
"She is very happy with the repairs and so glad I recommended them and she would highly recommend them to anyone else and she would be gladly be a reference for them as well."
Carolyn G.
"Thank you! Invoice received. It was a pleasure doing business with you guys 😊. I am very pleased & impressed with their work & being on time.
I will recommend your services to others. Thanks again!"
Maryann and Paul B.
"Maryann and I wanted to let you know how pleased we are with the job that Sand Tech did in restoring our home following our unfortunate water leak. The materials and workmanship are excellent, but frankly we expected that from a contractor recommended by USAA. What stands out to us is the diligence with which the job was pursued, and the dedication that was shown to meeting every commitment made by our company. Those things are due to the professionalism and hard work of Stephen, "our" project manager. He made a promise that he was there for us to make our lives easier. He more than met that promise.
Each of us spent large parts of our working lives in Goverment contract and project management. We know excellence in those areas when we see it. Your company meets those standards of excellence..."
Nallely T.| 05/14/2024
"Stacey and his team completely blew out my expectations. From beginning to end they were very professional and honest. Bobby, project manager, always kept me informed on the step by step when redoing my master bathroom. Even though, there were little set backs throughout the process, the job finished before the expected time. Would highly recommend them to anyone needing help with their bathrooms. I know, me and my family will be clients for life!"
Sarah W.| 04/13/2024
"I had a fire inside my house with extensive smoke damage. SandTech started from the studs and redid my entire house. They were professional and courteous and easy to work with. They worked very efficiently with my insurance company also. They redid my entire house interior better than it was before the fire. I would recommend them to everyone."
Regan B.| 04/05/2024
"This company was amazing. They came in and did an outstanding job on water damaged house.timely and communication was excellent."
Letty O.| 02/08/2024
"My review is years overdue. A pipe blew out on our water heater and caused lots of water damage throughout the house. My insurance recommended this company to complete our repairs. We were very satisfied with their communication, thoroughness, and craftsmanship. Would definitely use again if the need ever arises and highly recommend."
Lori| 06/18/2023
"We hired sandtech to do work at my 90+ year old father's home. We had used them previously for foundation repairs. This time we had water pipes replaced throughout the house.
Everything seemed great but after sheetrock repairs following the water pipe installation (sandtech GC'd all), the sink was clogged. Sandtech sent plumber to unclog and they didn't get it unclogged.
I called again a few times but they came back and never made it right . Disappointing,. Shame on us for paying beforehand. Sad for my Dad cause it was a big expense!
This company has come through and fixed the issue...my faith is restored and
i really appreciate the response and help. I would recommend ST Construction without hesitation"
Samuel M.| 03/21/2023
"Best contractors I have ever worked with, no need to look anywhere else. Highest 5 stars for integrity, quality, communication at a fair price. I had a house disaster and my insurance agency, USAA, recommended Stacy and the team. Best repair experience I have ever been involved with. From water mitigation, framing, sheetrock, painting, tile, plumbing, these guys do it all at a high level. And left a clean job site once complete. Happy to recommend."
LaNita W.| 07/22/2022
"Excellent work and a pleasure to deal with!"
Heidi B.| 04/14/2022
"Thank you Tony for being fast and for helping in getting the inspection report that same day!"
Lisa M.| 06/19/2021
"After many years of putting off some much needed foundation work, and after seeking estimates from 3 different companies, we chose to hire Sandtech for our foundation repair. The bid was right in the middle of the others we received, but the detailed measurements, explanation of the work to be done, and the thorough inspection of the house was far superior. The scheduling was a bit of a challenge at first because they were backlogged with plumbing jobs after winter storm URI but they managed to get us on within a few weeks from the time we contacted them. The team assigned to our project was awesome! They were at our house ready to go before 8am every day and they worked incredibly hard and very quickly to get things done. Since our house was sinking in the middle, we required both interior and exterior piers (about 23 total). Throughout the process they kept us informed, showed us what they were finding (we had some huge roots under our house!) and left the work site super clean at the end of each day. We were able to stand in the house while they lifted it and we could literally see the cracks in the walls fuse back together..."
Dee G.
"These guys are GREAT!! They answered my distress call later in the evening. Were out to fix the problem early the next morning! Fast work, professional, courteous, cleaned up better than when they arrived. I know I can call them for anything and they will not only fix the problem fast, but are reliable - they even show up early! Highly recommend them!!"
Thomas P.
"I had another plumbing company out who performed a static and isolation test and found that I had a leak in my sewer line under my house which would require about 20 feet of tunneling to fix. I asked for some repair company recommendations from an engineer. He recommended SandTech. I got a total of 4 quotes for the repair, and SandTech was right in the ballpark with the other quotes. SandTech was the only company that not only back filled the tunnel with normal tamping, but also followed up with a slurry injection to aid in filling any areas not completely filled. Their workers were here when they said they would be here, worked quickly to complete the project ahead of schedule, and returned everything just as it was before they got here. They completed the repair as expected, and there were no surprises on the final bill. I could not have asked for a more professional experience. I NEVER leave reviews for anything because I am too busy, but I could not let this experience go without leaving feedback. If every contractor worked like this, I wouldn't dread doing more projects around the house."
Nancy P.
"I have nothing but praise for Sandtech and the work they did my new roof. Robert was helpful from day 1 when he arrived to do the appraisal for USAA insurance. He was flexible with my schedule and the crew that worked on my roof that day was top notch. I was actually concerned about stray nails/roof tacks being left behind in the yard as I have dogs and wouldn't want them picking up any in paws or eating one. They were through and used a metal detector to find any stray nails and left my yard picked up and clear of any debris of old roof. I would recommend them to friends and family and use them again in the future."
Barbara
"They did an outstanding job. My kitchen is georgous. Everything is done to the top quality of workmanship"
Phone: 713-645-4824
Sandtech is a preferred provider contractor for the following leading insurance companies:
USAA, AMICA, STATE FARM, AAA OF TEXAS, SAFECO, METLIFE, ASI, AND THE HARTFORD