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Avatar for Groundworks
Groundworks
4.4(
341
)

Serving Williston, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"Mount Valley is the epitomy of an honest, fair, reliable, efficient, professional, and customer service oriented company. Our coordinator, Ryan McAlister, was extremely knowledgeable and informative during inspection of our crawl space water issues, and his subsequent repair recommendations. Ryan was like a professor explaining retrofitting encapsulation of the crawl space and basement water issues with a slab, along with discussing such encapsulation during a new build vs. standard floor insulation in a crawl space in a climate above 60% humidity. Fascinating and educational discussion for me as an homeowner with very limited knowledge of the subject. Ryan was patient and is truly an expert. He also provided additional advice on other ground water issues and recommendations for us as homeowners to try, outside the crawl space, in order to save us money. His crew was extraordinarily hard working and diligent, personable and friendly. They did a great job in every detail relative to trench digging, gravel, wrapping, wall insulation, sump pump, dehumidifier, and drainage. Very well done and much appreciated professionalism and expertise. Very impressed with the coordinated team work demonstrated by the whole crew, Damian (foreman), Mac, and David. Very impressive young men. My wife wanted to adopt them and Ryan upon completion of the project, which was done in grueling heat, humidity, and wet conditions. Job well done. Great company. Joe Morrash - Irmo, SC"
Foundation
Foundation
Foundation
Foundation
Foundation

+13

Response time1 day
92 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Direct Services Plumbing & Drain, Inc
Direct Services Plumbing & Drain, Inc
4.9(
54
)

Serving Williston, SC and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Emergency services offered

Warranties offered

"Ethan was very professional and worked the entire time he was here. The work is guaranteed for 90 days. I am pleased with the repairs. Be aware that there will be a service call fee and job fee and a per hour charge."
We install water heaters, tankless heaters, gas, and electric.
We have over 35 years in the drain cleaning field.  That's a lot of experience that you can count on!
Water Heater Installation
Shower drain slow?  No problem! Give us a call!
Clogged Drain? We can help!

+22

Response time11 hrs
Response rate88%
10 neighbors recently requested a quote
Avatar for Southeast Plumbing & Gas, LLC
Southeast Plumbing & Gas, LLC
4.5(
55
)

Serving Williston, SC and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"He tried to see if the water heater could be repaired, but it was too damaged from rust. He replaced it with a new one with a six year warranty. He protected the floor with plastic from possible leaks before he removed it and was careful to clean everything up before he left. He also made sure it was working before he left. He was very nice."
Multiple LP Gas Line Installation
Underground natural gas line
Underground natural gas line installation
Septic Systems Service and Usage
Water Filtration & Softeners Project

+85

Recommended by96%of homeowners
Avatar for CNT Foundations
CNT Foundations
4.5(
37
)

Serving Williston, SC and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"They didn't end up doing the work. They were really high on what they wanted to do. Other people who looked at the porch said that it was not causing an issue with any water intrusion and that there doesn't seem to be any signs on the posts that this could have been recent, it could have been long ago. So no work was done. It was a front porch that had just the level concrete on one side was dipping just a little bit. I think they were going to pump it up from underneath or something like that to level it out. I would say that their response time and their professionalism of getting the quote to us on a timely manner was good. The quote was high and yet the work was not necessary according to other quotes. They should be honest to say when repairs are necessary and when they are not. The guy who showed up was nice and professional and was on time. There was a decent response time."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+270

Recommended by84%of homeowners
Avatar for Cantey Foundation Specialists
Cantey Foundation Specialists
4.0(
32
)

Serving Williston, SC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Everyone we dealt with from Cantey Foundation Specialists were very professional, timely, and caring throughout the entire process from job estimate to the actual work done. While the work done did not bring all areas back completely to their original states, with the exception of one area, they were all pretty close. Realistically, It's very difficult to fix in two days what has taken place over a period of years. I am very satisfied with the job done. Grayson (job estimator) and Estevan (crew leader) were very helpful and great to work with through the entire process."
Before PolyLevel LIft
New Gutter Shutter System
Concrete Before Columbia, SC
Driveway Level & Lifted
This is just one of the foundation cracks we found on this foundation. It's what we call a stair-step crack.

+137

Recommended by90%of homeowners
Avatar for The Fireplace Doctor
The Fireplace Doctor
3.9(
1,190
)

Serving Williston, SC and surrounding areas

In business since 1993

Emergency services offered

Credit card accepted

"Bought this in the spring to use before burning in the fall/winter.  Ended up moving in December and did not use it.
I'm wasn't sure how to score a company I didn't use (and not reviewing isn't really an option), so I just picked a score consistent with the average rating.
"
Recommended by78%of homeowners
Avatar for CNT Foundations, LLC
CNT Foundations, LLC
3.9(
67
)

Serving Williston, SC and surrounding areas

In business since 2004

Free estimates

Warranties offered

"Travis was kind enough to review our home inspection report and advise us based on the information within. This saved us time and money. Stellar customer service!"
Chimney Repair
Response time1 day
Recommended by81%of homeowners
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Basement Waterproofing questions, answered by experts

Venting the crawl space can be a good alternative to encapsulation if you live in a dry climate and the moisture problem isn’t severe. You could also try a dehumidifier or install a vapor barrier on the floor, leaving the walls exposed. A new drainage system may eliminate the moisture problem if it is not caused by humidity.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation. 

Waterproofing or encapsulating protects against moisture, preventing mold growth and structural damage. These services also enhance energy efficiency and improve air quality by keeping humidity levels in check.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

The Williston, SC homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.