Duncan grew up as an oil town, and Stephens County still shows it. Many houses near downtown date from the 1920s through the 1950s, built when the oil service business brought steady work. Those homes were commonly framed over pier and beam foundations with perimeter brick or concrete block, and a lot of them still have their original supports underneath.
Age is the main story in a Duncan crawl space. Cedar or treated posts set on concrete pads have often settled unevenly, mortar in old perimeter walls has softened, and someone has usually added steel jacks or extra blocks at some point without a footing. The result is floors that dip near interior walls and doors that rub at the top corner.
Duncan sits on US 81 south of Chickasha, and we drive down from our south Oklahoma City shop for scheduled inspections. During the free visit we check the original supports, earlier repairs and the ground moisture, then explain what can stay and what should be replaced before we write a quote.
Around Duncan
Places we work in and around Duncan include:
- Oil-era homes close to downtown Duncan
- Older brick and frame houses along the US 81 corridor
- Postwar ranch homes on the north side
- Acreage and farm homes across Stephens County
- Homes near the small lakes that serve the Duncan area
- Nearby towns such as Marlow and Comanche
Crawl Space Notes for Duncan Homes
- Old perimeter walls built of brick or soft block can lose mortar; we check them before adding any new load to the foundation.
- Stacked blocks without a footing are a common earlier fix in Duncan homes and often need to be replaced with real supports.
- Original wood sills in 1920s and 1930s homes can show rot where gutters dumped water against the wall for years.
- Floor furnaces and old gas lines sometimes remain in Duncan crawl spaces and need to be considered before installing any liner.
Most Requested Crawl Space Services in Duncan
Pier and Beam Foundation Repair in Duncan
Original oil-era supports and earlier patch repairs are the most common reason Duncan floors are out of level.
Learn more
Sagging Floor and Floor Joist Repair in Duncan
Older joists cut for plumbing or heating changes often sag under kitchens and bathrooms.
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Crawl Space Waterproofing in Duncan
Gutter runoff against old brick foundations keeps some Duncan crawl spaces damp along one side.
Learn moreSloping or bouncy floors in Duncan?
Structural problems get their own page: pier and beam foundation repair in Duncan covers piers, shims, beams and leveling costs for local homes.
What Earlier Repairs Tell Us in an Older Duncan Home
Most Duncan houses from the oil boom era have been worked on more than once. We often find a mix of original wood posts, stacked concrete blocks, a few screw jacks and some newer lumber nailed alongside old joists. None of that is unusual, but it tells us where the house has been moving and how well past fixes held up.
We do not assume every older support needs to go. If an original post is sound and sitting on a solid pad, it can stay. The goal is to replace what is failing, add footings where blocks are sitting on bare dirt, and bring the floor back as close to level as the old framing will safely allow.
What Affects Crawl Space Repair Costs in Duncan
In Duncan, the price follows the age of the structure. Reshimming and minor leveling can be $500 to $2,000, and each new interior pier with a footing runs $400 to $1,200. Rotted sill plate repair is $100 to $300 per linear foot, and replacing a failed beam section can reach $2,500 to $8,000. A typical older home leveling job lands between $2,500 and $10,000, and you get a free written quote first.
