Frequently Asked Questions (FAQs)
Atlantic Foundation & Crawl Space Repair
Crawl Spaces
A wet crawl space can be caused by poor drainage, high humidity, plumbing leaks, groundwater intrusion, or humid outside air entering the space. The evaluation should identify whether the main issue is liquid water, humidity, condensation, or damaged materials so the appropriate drainage, encapsulation, or structural repair can be selected.
Musty odors or visible growth usually indicate that excess moisture is present. The moisture source should be identified first. Depending on the conditions, the next step may involve drainage, encapsulation, dehumidification, material repair, or separate remediation by an appropriate professional.
Common warning signs include sagging floors, high humidity, standing water, mold, wet insulation, wood rot, condensation on HVAC ducts, and pest activity. If you see any of these, repairs should be made quickly to prevent structural deterioration.
Crawl space repair typically ranges from $2,500–$25,000, depending on whether you need drainage, vapor barrier, structural repairs, or full encapsulation. Homes with severe water issues or wood rot may be on the higher end.
Modern building science recommends keeping crawl space vents closed. Open vents let in moist air, causing mold growth, condensation, and structural issues. Encaping the crawl space seals it and keeps humidity under control.
Sagging floors can be caused by damaged joists, weakened girders, inadequate supports, moisture-related deterioration, or settlement beneath a support. The floor system should be evaluated to determine whether reinforcement, replacement, additional support, or foundation repair is appropriate.
Yes — pests enter through open vents, gaps, or foundation cracks. Encapsulation seals the crawl space and makes it much harder for rodents, ants, and insects to get in.
Home Foundations
Look for cracks in brick or block walls, uneven floors, sticking windows/doors, stair-step cracks, bowing walls, gaps around trim, and sinking or settling areas of the home. The sooner foundation issues are addressed, the less expensive the repair.
Hairline cracks are often harmless shrinkage cracks. However, horizontal cracks, wide vertical cracks, stair-step cracks, or cracks accompanied by bowing or water intrusion usually indicate structural movement and need professional evaluation.
Settlement typically occurs due to unstable soil, erosion, expansive clay, poor drainage, tree root activity, or improper compaction during construction. Helical piers or push piers are often required to stabilize the home.
Helical piers or other stabilization methods may be appropriate when settlement is related to inadequate supporting soil. The repair method depends on the foundation type, movement, structural loads, and soil conditions found at the property.
Foundation repair can range from $3,000–$40,000+, depending on the number of piers needed, the type of settlement, and whether additional structural repairs are required.
In most cases, standard homeowners insurance does not cover foundation issues unless caused by a sudden event (like a busted pipe). Most settlement is considered normal wear and tear.
Most foundation problems worsen over time, but immediate danger is rare. However, the longer repairs are delayed, the more expensive and severe they become.
Slab Foundations
Slab cracks are usually caused by soil settlement, moisture changes, expansive clay, plumbing leaks, poor construction, or heavy loads. A foundation specialist can determine if the crack is structural.
Yes — hairline shrinkage cracks are common and typically cosmetic. Cracks wider than 1/8 inch or cracks that grow over time may indicate foundation movement.
The most effective repairs include slab piers, foam injection (polyjacking), or mudjacking, depending on the soil conditions and severity of settlement.
Yes — slab piers or polyurethane foam injection can lift and stabilize sinking concrete slabs.
Yes. Poor drainage around a slab allows water to pool around the foundation, causing cracking and settlement. Proper grading and downspout extensions help protect the slab.
Most slab repairs are completed in 1–3 days, depending on the size of the home and number of piers required.
Home Structural Repair
Sagging floors are typically caused by rot, moisture damage, weakened joists, failing beams, termite activity, or inadequate support in the crawl space.
Repairs may include sistering joists, installing steel beams, replacing rotten wood, adding support piers, or using adjustable jacks to level the floor.
Yes. Wood rot weakens support beams and floor joists, compromising the stability of the home. It must be repaired immediately to prevent collapse or costly reconstruction.
Most structural floor repairs range from $3,500–$15,000, depending on the severity of the damage and how much wood must be replaced or reinforced.
Yes — most structural repairs can be completed while you remain in your home, though areas being repaired may be temporarily inaccessible.
Keep your crawl space dry, maintain proper drainage, repair leaks quickly, and schedule regular foundation inspections.
Crawl Space Encapsulation
Encapsulation involves sealing the crawl space with a 20-mil vapor barrier, closing vents, installing a commercial dehumidifier, and adding drainage if needed. This creates a dry, conditioned environment that protects the home’s structure.
Encapsulation helps control ground vapor and humid-air entry in appropriate crawl spaces. Standing water, active leaks, damaged framing, pest activity, or visible biological growth may require separate drainage, repair, pest-control, or remediation measures.
Most homes fall between $8,000–$20,000, depending on size, drainage needs, and the condition of the crawl space.
Yes. By controlling humidity below 60%, encapsulation stops mold from growing and prevents moisture from damaging the wood structure.
Yes — a high-capacity crawl space dehumidifier keeps moisture levels stable year-round and protects your foundation from long-term humidity damage.
Yes. A sealed crawl space keeps conditioned air inside the home, improving HVAC efficiency and reducing heating/cooling costs.
A properly installed encapsulation system with a 20-mil liner can last 20–30 years or longer with minimal maintenance.
Get Started Today
If foundation or crawl space warning signs are changing or appearing together, request an evaluation so the team can review the likely cause and appropriate next step.