DeKalb County, Georgia
Foundation repair in Decatur typically costs between $3,000 and $12,000 depending on the age of the home. Reliable Solutions Atlanta specializes in historic Decatur homes with original pier-and-beam foundations dating back to the early 1900s, as well as modern structural repair for newer DeKalb County homes. Free same-week inspections available.
Decatur contains some of the oldest residential housing stock in metro Atlanta. The neighborhoods surrounding the Decatur Square — Oakhurst, Winnona Park, Great Lakes, MAK District, and the historic downtown core — include craftsman bungalows, Tudor revivals, and colonial homes built from 1900 through the 1940s. These homes sit on original foundations that were never designed to last 100+ years without intervention.
The original pier-and-beam foundations in historic Decatur homes used stacked fieldstone, hand-laid brick columns, or early unreinforced concrete piers. These materials deteriorate over decades of exposure to moisture and soil movement. Wooden girders and floor joists resting on these piers absorb moisture from the crawl space and develop rot, weakening the entire floor structure.
Decatur's dense tree canopy — one of the defining features of the community — creates a uniquely challenging moisture environment. The tree cover prevents sunlight from drying the ground around homes, and leaf debris clogs gutters and creates organic soil layers that hold moisture against foundations. The combination of old construction, heavy tree cover, and Georgia clay creates conditions where foundation deterioration is not a question of if, but when.
The revitalization of Decatur over the past two decades has also brought a wave of renovations to historic homes. We frequently find that previous renovations added weight to structures — second-story additions, heavy tile bathrooms, granite countertops — without reinforcing the original foundation to handle the increased load. The foundation that adequately supported a 1920s bungalow may not support the same structure after a major renovation.
The 30030, 30032, and 30033 zip codes are where we do the most foundation work in the Decatur area.
Historic Decatur homes show foundation problems differently than suburban construction. Here is what to look for.
In homes from the 1920s-1940s, it is not unusual to find floors that slope 2 or more inches across a room. Homeowners often assume this is just part of living in an old house, but it indicates pier failure that is repairable.
When crawl space piers settle or rot, the girders they support drop. The floor joists spanning between girders then flex under foot traffic, creating a bouncy feel. This is structural, not cosmetic.
In pier-and-beam homes, if you can see daylight between the bottom of the exterior siding and the foundation, the structure has dropped away from its original position. This also allows pest entry and moisture intrusion.
If you can see the crawl space piers, check the mortar between bricks or stones. If it crumbles when you touch it or is missing entirely, the pier has lost structural integrity.
Original plaster walls and ceilings in Decatur bungalows crack when the structure shifts. Unlike drywall cracks that can be patched, plaster cracks indicate movement that needs to be stopped at the foundation level.
When the foundation settles unevenly, door frames tilt. A door that will not stay where you put it is responding to gravity pulling it along the slope of a tilted frame.
This is our specialty in Decatur. We remove failing stacked stone, brick, or concrete piers and replace them with modern adjustable steel piers on properly poured concrete footings. We then re-level the floor system incrementally — historic homes need to be leveled slowly over days to avoid cracking plaster or stressing framing joints. We repair or sister any deteriorated girders and joists as part of the project.
Decatur crawl spaces are often the root of the problem. We install new support beams and piers where the original system has failed, reinforce existing structures where they still have integrity, and address any wood rot or termite damage that has weakened the floor system. We treat all new and existing wood with borate preservative to prevent future rot and pest damage.
For Decatur homes, we strongly recommend pairing foundation repair with crawl space encapsulation. After replacing failed piers and re-leveling the structure, we install a heavy-duty vapor barrier across the crawl space floor and walls, seal all vents, and add a dehumidifier. This controls the moisture environment that caused the original damage and protects the new structural work for decades.
Homes that have been renovated with second-story additions or heavy materials often need additional piers beyond the original layout. We engineer supplemental pier locations based on the current load distribution, not the original 1920s design, ensuring the foundation supports the home as it exists today.
Decatur foundation repair costs tend to be higher than newer suburbs because the work is more complex. Historic homes require more piers, more beam work, and more careful leveling. The investment is proportional to the value these homes hold in a market where renovated Decatur bungalows sell for $500,000+.
| Repair Type | Typical Cost |
|---|---|
| Pier replacement (per pier) | $800 – $1,500 |
| Full pier-and-beam restoration | $5,000 – $12,000 |
| Girder/joist repair or sistering | $1,500 – $4,000 |
| Supplemental pier installation | $1,200 – $2,000 per pier |
| Foundation + encapsulation combo | $8,000 – $18,000 |
| Crack injection (newer homes) | $400 – $800 |
Financing available through GreenSky. All structural repairs include warranty.
Foundation repair in Decatur ranges from $3,000 to $12,000 depending on the age and type of foundation. Historic homes with original pier-and-beam foundations typically cost more due to the complexity of working with century-old construction. Crack repairs in newer homes start around $500. Full structural restoration can reach $15,000 for severely deteriorated historic foundations.
Yes. We have extensive experience with Decatur historic homes built from the early 1900s through the 1940s. We understand original construction methods including stacked stone piers, brick pillar foundations, and early poured concrete. We modernize the support system while preserving the character of the home.
Properties within the Decatur Historic District may need approval from the Historic Preservation Commission for exterior work. However, foundation repair that does not alter the exterior appearance of the home typically does not require approval. We are familiar with the process and can advise on your specific situation.
Decatur has dense tree canopy that traps moisture at ground level, and many older homes were built without modern moisture barriers. The original crawl spaces have bare dirt floors, inadequate ventilation, and no vapor barriers. This creates a constantly damp environment that accelerates foundation deterioration through wood rot and soil erosion.
We strongly recommend it for Decatur homes. Fixing the structural foundation without addressing the moisture that caused the damage means the new piers and beams are exposed to the same conditions that destroyed the originals. Crawl space encapsulation paired with foundation repair provides a comprehensive solution that lasts.
Essential for Decatur historic homes. Seal the crawl space to protect new foundation work from the moisture that caused the original damage.
Structural repair for failing crawl space supports, joists, and girders in older DeKalb County homes.
Redirect surface water away from your Decatur home to reduce the moisture loading on your foundation.
Home / Foundation Repair / Decatur
Foundation repair also available in Lawrenceville, Marietta, Roswell, Alpharetta, Sandy Springs, and Stone Mountain.
Whether your Decatur home was built in 1920 or 2020, we will inspect the foundation, explain what we find, and give you a written estimate. We understand historic construction and we treat every home with the care it deserves.
BBB A+ Accredited · IICRC Certified · 20+ Years Experience · Financing Available