South Carolina Foundation Repair Rules: What Columbia, SC Homeowners Should Know
Before anyone sets a pier under a home in Columbia, SC, it helps to know which state laws and local offices apply. This page sums up the rules for the City of Columbia, Richland and Lexington Counties and the nearby towns with their own permit desks.
- No Cost to Request
- Written Estimates
- Local to Richland & Lexington Counties
- Slab & Crawl Space Homes
What to Know First
South Carolina has no license or category called "foundation repair." What it does have is a builder license and a specialty registration, both run by the SC LLR Residential Builders Commission, and the size of the job decides which one applies. Inside City of Columbia limits, structural work also needs a City permit and a contractor who holds a City business license.
State law also limits deals on deductibles and claims, lets buyers cancel some financed sales made at home, and bans deceptive business practices. This is a summary of public law, not legal advice.
Does SC License Foundation Contractors?
Not as a trade of its own. Under § 40-59-20, a residential builder license applies to jobs over $5,000, and a residential specialty contractor registration to jobs over $500. Specialty trades include masonry and carpentry, and the masonry class covers repairs to poured-in-place concrete footings and reinforced slabs. No class names piers, underpinning or crawl-space supports, so ask the specialist which SC LLR license or registration covers your work, then check it on the lookup.
Working without a required license, or offering to, is a misdemeanor under § 40-59-30. Commercial work answers to a separate Contractor's Licensing Board, which licenses general contracting over $10,000. Any business working inside City of Columbia limits needs a City business license, renewed by April 30 every year, and the City wants to see it, along with the SC LLR license, before a building permit goes out.
Get these answers on paper first:
- License or registration number. Look it up on verify.llronline.com under Residential Builders and confirm the name matches the contract.
- City business license. Needed for work inside City of Columbia limits; ask to see the current one.
- Insurance certificate. A current certificate of liability insurance in the company's name.
- The engineer question. Will a licensed professional engineer design or review the repair plan?
- Who pulls the permit. Usually the contractor; write the answer into the contract.
- Written scope. The number and type of piers or supports, and where each one goes.
- Warranty terms. What is covered, for how long, and whether it transfers when you sell.
Does Homeowners Insurance Cover Foundations?
That answer sits in your own policy, so ask your own insurer what your policy covers. State law does set limits on how contractors act around a claim.
Section 40-59-25(E) forbids builders and contractors to offer, in ads or in person, to cover or hand back any slice of your deductible. Gifts, credits and fees paid for sending business count the same way. You pay your own deductible, whatever a salesperson suggests.
Under § 38-48-20, only a licensed public adjuster may adjust a loss for a policyholder or seek out one who has had a loss, and § 38-48-130(d) bars anyone from being both contractor and public adjuster on one claim. A public adjuster also may not steer you to a repair company that pays it for sending customers (§ 38-48-70).
Cancelling a Foundation Repair Contract
South Carolina's cancel right is narrower than many people expect. Under § 37-2-501 and § 37-2-502, it covers a "home solicitation sale" on consumer credit, where the seller came to your home to make the sale; in some cases a credit card or consumer loan counts. The buyer may usually cancel until midnight of the third business day after signing. Exclusions apply, such as a deal worked out earlier at the seller's place of business, so read the contract's notice and ask the company.
The South Carolina Unfair Trade Practices Act (§ 39-5-20) outlaws unfair or deceptive acts in trade or commerce. Willful breaches can draw civil penalties, and a private suit can recover up to triple damages for willful or knowing ones. This is a summary, not legal advice.
Engineer Letters and Permits
SC LLR houses the board that licenses engineers, the State Board of Registration for Professional Engineers and Surveyors, and its lookup sits on verify.llronline.com. Under § 40-22-280, home plans for one or two families that stick to the International Residential Code's prescriptive rules are exempt from engineering law; anything outside those rules is not. We found no City or county page saying a repair permit needs an engineer. Ask the permit office whether your repair needs an engineer's plan or letter, and ask the specialist whether a licensed professional engineer will design or review it.
The state code is the 2021 International Residential Code with South Carolina changes, in force since January 1, 2023; the City of Columbia plans to move to the 2024 codes on January 1, 2027.
Historic and design districts add a step: the City needs a Certificate of Design Approval there before it issues a permit. New foundation vents, piers that change how the house looks, or new skirting may need one. Among the districts are Waverly, Granby, Whaley, Earlewood, Wales Garden, Elmwood Park, University Hill, Cottontown/Bellevue, Melrose Heights/Oak Lawn and Old Shandon/Lower Waverly.
City and County Permit Contacts
Rules change at each city or town line, so never assume a town works like the City of Columbia.
- City of Columbia. Planning & Development Services, 1401 Main Street, 3rd Floor. All regulated work needs a permit, and only cosmetic work such as painting and flooring is exempt. Foundation work is filed as a renovation, alteration or emergency repair. Ask before work starts, and ask who pulls the permit.
- Unincorporated Richland County. Building Permitting and Inspections, Administration Building, 2020 Hampton Street, Columbia, SC. It issues residential permits but posts no foundation rule, so check with the county before work starts.
- Unincorporated Lexington County. Building Permits, County Administration Building, 212 South Lake Drive, Lexington, SC. Ordinary repairs are exempt but not defined, so ask whether yours needs a permit. Owners may pull their own permit if the home won't be sold or rented for two years.
- Lexington, SC. Inside town limits, ask the Town of Lexington Planning & Building office at 111 Maiden Lane whether the repair needs a permit.
- Irmo, SC. An outside firm issues building permits for every property in town, and the Town requires its own Zoning Permit for structural work. Ask at Town Hall, 7300 Woodrow Street.
- West Columbia, SC. Building Department, City Hall, 200 N. 12th Street. Permits come before construction, repairs are a listed permit type, and flood-prone lots may need flood elevation papers.
- Forest Acres, SC. Building Department, City Hall, 5209 North Trenholm Road. Only SC LLR-licensed contractors or exempt homeowners pull permits; ask whether your repair needs plan review.
- Blythewood, SC. The Town issues its own permits online or at Town Hall, 171 Langford Road. Check with Town Hall before structural work.
Regulation Questions, Briefly Answered
Is there a South Carolina license just for foundation repair?
No. The state licenses residential builders for jobs over $5,000 and registers specialty contractors for jobs over $500 through the SC LLR Residential Builders Commission. No class names piers or underpinning, so ask the specialist which license or registration covers your job and confirm it on verify.llronline.com before you sign.
Can a contractor pay part of my deductible?
No. A builder or contractor in South Carolina may not offer to cover or give back any of your deductible, and gifts or credits count as the same thing. You pay your own deductible. If someone hints otherwise, slow down and ask your own insurer what your policy covers.
Can I cancel after signing at my kitchen table?
Sometimes. For a sale made in your home on credit, you can usually back out until midnight of the third business day after you sign. Other sales may fall outside that right. Read the cancel notice in your contract and ask the company whether it applies to your job.
Does my repair need an engineer?
We found no City or county rule that says so for repairs. Ask the permit office that covers your address whether it wants an engineer's plan or letter, and ask the specialist whether a licensed professional engineer will design or review the work, and who pays for that.
References for Further Reading
All pages were read on 2026-10-17.
- Builder licenses and deductibles: https://www.scstatehouse.gov/code/t40c059.php
- Specialty classes: https://www.scstatehouse.gov/coderegs/Chapter%20106.pdf
- Commercial licensing: https://www.scstatehouse.gov/code/t40c011.php
- Residential Builders Commission: https://llr.sc.gov/res/faq.aspx
- Home solicitation sales: https://www.scstatehouse.gov/code/t37c002.php
- Public adjusters: https://www.scstatehouse.gov/code/t38c048.php
- Unfair Trade Practices Act: https://www.scstatehouse.gov/code/t39c005.php
- Engineers: https://www.scstatehouse.gov/code/t40c022.php and https://llr.sc.gov/eng/faq.aspx
- City of Columbia permits: https://planninganddevelopment.columbiasc.gov/residential-projects/
- City of Columbia business licenses: https://businesslicensing.columbiasc.gov/frequently-asked-questions/
- Richland County: https://www.richlandcountysc.gov/Government/Organization/Departments/Building-Permitting-and-Inspections
- Lexington County: https://lex-co.sc.gov/departments/community-development/building-permits/building-permits-faqs
- Irmo: https://www.townofirmosc.com/business/doing_business_in_the_town/licenses___permits.php
- West Columbia: https://westcolumbiasc.gov/building-permits/
- Forest Acres: https://www.forestacres.net/permits-applications
- Blythewood: https://townofblythewoodsc.gov/business/permits_and_inspections.php
Put This to Use With a Request
Send us a short note about the cracked brick, stuck doors or soft floors at your place, and we will book a visit from a local foundation specialist. The specialist inspects, writes the estimate and handles the permit, and what happens next is up to you. Sending a request costs nothing. Bring this page's questions to the visit.