Get matched with top basement waterproofing pros in Sullivans Island, SC

•Approved Pro

Mount Valley Foundation Services

4.69(

Customers say: True professional

•Approved Pro

Recommended by 92% of Angi customers

28 local quotes requested

Established in 1986, Mount Valley Foundation Service stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of South Carolina, we bring our local expertise closer to you. MVFS proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At MVFS, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!

"Please see the earlier review (3/12) for context. I wanted to take a moment to share my experience with Mt. Valley Foundation Services regarding our sump pump installation. Overall, the team did an excellent job with both the initial installation and the subsequent repair of the discharge lines, which had come apart over time. They were professional, transparent, and truly seemed to care about the project. The only challenge I encountered was not with Mt. Valley Foundation Services itself, but rather with its parent company, Ground Works. From my experience, Ground Works has acquired many smaller foundation companies across the U.S., and it seems they may be struggling with logistical coordination. The call center they use is not very user-friendly, and I experienced multiple miscommunications and scheduling errors. Unfortunately, this puts Mt. Valley Foundation Services at the mercy of Ground Works' logistical issues. That said, I highly recommend working with Mt. Valley Foundation Services. My advice is to obtain the names and direct contact information of the service team when booking—this makes future communication significantly easier. Once I was able to reach the team directly, they went above and beyond to accommodate my needs. Living in a flood-prone area, I feel confident that the sump pump project they completed will be a tremendous benefit to our home and property. A big thanks to Danny (the manager) and his team for their outstanding work!"

Matthew H on March 2025

"Please see the earlier review (3/12) for context. I wanted to take a moment to share my experience with Mt. Valley Foundation Services regarding our sump pump installation. Overall, the team did an excellent job with both the initial installation and the subsequent repair of the discharge lines, which had come apart over time. They were professional, transparent, and truly seemed to care about the project. The only challenge I encountered was not with Mt. Valley Foundation Services itself, but rather with its parent company, Ground Works. From my experience, Ground Works has acquired many smaller foundation companies across the U.S., and it seems they may be struggling with logistical coordination. The call center they use is not very user-friendly, and I experienced multiple miscommunications and scheduling errors. Unfortunately, this puts Mt. Valley Foundation Services at the mercy of Ground Works' logistical issues. That said, I highly recommend working with Mt. Valley Foundation Services. My advice is to obtain the names and direct contact information of the service team when booking—this makes future communication significantly easier. Once I was able to reach the team directly, they went above and beyond to accommodate my needs. Living in a flood-prone area, I feel confident that the sump pump project they completed will be a tremendous benefit to our home and property. A big thanks to Danny (the manager) and his team for their outstanding work!"

Matthew H on March 2025

Falcone Crawl Space & Structural Repair

Falcone Crawl Space & Structural Repair

Customers say: Super punctual

Recommended by 93% of Angi customers

46 local quotes requested

Falcone Crawl Space & Structural Repair is a local, family-owned business providing customers in North and South Carolina foundation repair, structural repair, and waterproofing services since 2006. We are a licensed General Contactor and offer free consultations and estimates.

"Eric and his crew tackled a long-standing drainage problem in the basement of our 1932 Craftsman bungalow. We'd had several estimates and options but They impressed us from the start with their solution to the problem and their professionalism. They were great communicators and kept us apprised of what they were doing every step of the way. Can't recommend them enough."

JIm M on November 2025

"Eric and his crew tackled a long-standing drainage problem in the basement of our 1932 Craftsman bungalow. We'd had several estimates and options but They impressed us from the start with their solution to the problem and their professionalism. They were great communicators and kept us apprised of what they were doing every step of the way. Can't recommend them enough."

JIm M on November 2025

R&M Building and Remodeling

R&M Building and Remodeling

8 years of experience

We Provide High Quality Remodels, Repairs, and Renovations for Residential Homes and Commercial Properties. We also do Custom Deck Design and Construction. Privacy Fences. Patios. Sheds. Siding. Roof Repair. Retaining Walls and other Hard Scapes. We do it all!

Lowveld Crawlspace Solutions LLC

Lowveld Crawlspace Solutions LLC

Customers say: Quick response

Lowveld Crawlspace Solutions (LCS) offers crawlspace encapsulation, vapor barrier systems, dehumidifier and pump installation, as well as attic insulation. We pride ourselves on serving our customers in a timely and professional manner, never leaving you in the dark on the condition of your home. Your crawlspace is a vital part of your homes foundation and often overlooked. With free estimates and free inspections, we are here to provide your family with our professional recommendation. As a sister company to Duct-Tec, our technicians are well-versed to handle any project throughout your internal home system.

"Excellent! They were timely efficient friendly and their price was very competitive for a high-quality job well done. I would 100% recommend them to any of my neighbors or friends!"

Jenny A on June 2023

"Excellent! They were timely efficient friendly and their price was very competitive for a high-quality job well done. I would 100% recommend them to any of my neighbors or friends!"

Jenny A on June 2023

KSM Premier Contracting

KSM Premier Contracting

Customers say: Quick response

Veteran Owned and Operated United States Marine with over 10+ years experience in construction. Very fair priced and will work with anyone. This company was built on ethics and morals with integrity and honesty to make sure every customer is treated equal. The work speaks for itself.

"KSM was quickly reaponsive, When Matt came out he was able to find areas and problems that other MAJOR companies didn’t acknowledge. He was honest and very knowledgeable and had patience while working with me. i Would definitely hire again and his work speaks for itself!"

Mckenzie I on October 2024

"KSM was quickly reaponsive, When Matt came out he was able to find areas and problems that other MAJOR companies didn’t acknowledge. He was honest and very knowledgeable and had patience while working with me. i Would definitely hire again and his work speaks for itself!"

Mckenzie I on October 2024

Cyclone Pest Control Services llc

Cyclone Pest Control Services llc

At Cyclone Services we pride ourselves on providing our clients with Superior Pest Protection. Offering comprehensive pest control service plans for almost any situation. We do it all! Pest Control, Termites, CL100, Mosquito Control, Wildlife Removal, Bed Bugs, CrawlSpace Encapsulations

BNS Services

BNS Services

Customers say: Quick response

BNS Services has over 10 years of combined experience in Foundation repair Field. We are a licensed and insured contractor that specializes in crawlspace repair and foundation work. My team has vast knowledge in the areas of encapsulation, moisture damage, sump pump, floor jack and joist repairs. We provide free estimates. We also provide pressure washing services including driveways and roof cleaning. Give us a chance to help you.

"The services were well-done and timely. The workers were easy to work with and pleasant to be around. They surveyed and analyzed the problems and gave a fair estimate of the cost to repair. They were a joy to work with!"

Norma N on April 2021

"The services were well-done and timely. The workers were easy to work with and pleasant to be around. They surveyed and analyzed the problems and gave a fair estimate of the cost to repair. They were a joy to work with!"

Norma N on April 2021

Healthy-Crawl Space

Healthy-Crawl Space

Customers say: Quality work

At healthy Crawl Space, Our mission is to provide excellent local services with a customer first mindset. Through our no pressure, free evaluation process we are able to provide a comprehensive, educational and affordable solution to your specific crawlspace concerns. With our extensive warranties and easy servicing, we are able to provide our customers with the best value for our high-quality work.

Palmetto Environmental Solutions

4.93(

Palmetto Environmental Solutions

4.93(

Customers say: True professional

Palmetto Environmental Solutions specializes in mold testing, mold remediation, and crawl space solutions. Call us for interior mold issues, crawlspace encapsulations, and commercial preventative treatments. Our business is dedicated to making the air in homes and businesses cleaner. We offer warranties for our work. Call today to set up an inspection.

"It is been three month Mr. Matt came to give us an estimated for a mold problem. They came to repair our crawl space and two month after the repaired, we saw our energy bill went down, and the air conditioning is working efficiently. I highly recommend Palmetto Environment Solution Company. L & G from Goose Creek SC"

G T on October 2022

"It is been three month Mr. Matt came to give us an estimated for a mold problem. They came to repair our crawl space and two month after the repaired, we saw our energy bill went down, and the air conditioning is working efficiently. I highly recommend Palmetto Environment Solution Company. L & G from Goose Creek SC"

G T on October 2022

Lowcountry Crawlspaces LLC

Lowcountry Crawlspaces LLC