How much does crawl space beam repair cost?
Beam repair often ranges from about $1,500-$8,000, depending on whether the beam is reinforced, replaced, supplemented, or paired with post, pier, footing, and moisture repairs.
2026 structural cost guide
Crawl Space Beam Repair Cost
Beam repair cost depends on whether the work involves reinforcement, full replacement, added support posts, pier correction, temporary shoring, access, and moisture control.
Cost by scope
Beam repair cost by repair scope
Compare the scope before comparing totals. Beam work can be a single damaged section or part of a larger floor-support repair.
| Scope | Planning range | What it may include |
|---|---|---|
| Beam inspection and minor correction | $300-$1,500 | Measurements, limited shimming, fastener or connector correction |
| Beam reinforcement | $1,000-$4,000 | Sistered or supplemented support where existing beam is mostly sound |
| Beam replacement | $2,000-$8,000 | Temporary support, removal, replacement beam, bearing correction |
| Beam plus post or pier repair | $4,000-$12,000 | New supports, pads, footings, steel posts, or masonry correction |
| Beam repair plus moisture control | $8,000-$20,000+ | Structural repair with drainage, vapor barrier, dehumidifier, or encapsulation |
Cost drivers
What changes the beam repair price?
Beam repair pricing changes when the support system below the beam also needs work.
Length and location of the damaged beam or girder.
Whether the beam is reinforced or fully replaced.
Need for temporary shoring during repair.
Number of posts, piers, pads, or footings included.
Crawl space height, access, and debris removal needs.
Moisture, rot, pest damage, or wet insulation near the work area.
Engineer review, permit requirements, and documentation.
Whether the repair includes floor lift or only stabilization.
Related joist, sill plate, rim joist, or subfloor damage.
Quote review
Beam repair cost checklist
Structural quotes should make cause, scope, access, materials, and exclusions clear.
Does the quote identify the damaged beam or support line?
Is the beam being reinforced, replaced, or supplemented?
Are temporary supports included?
Are posts, piers, footings, pads, and connectors specified?
Is moisture control included or separate?
Does the quote explain floor lift limits?
Are engineering, permits, and inspections included if needed?
What conditions could increase the final price?
Related pages
Related structural and moisture guides
Use these pages to connect floor movement to likely crawl space causes and repair planning.
FAQs
Beam repair cost FAQs
Short answers for homeowners comparing structural crawl space repairs.
Why can beam replacement cost more than joist repair?
A beam or girder carries many joists, so replacement can require temporary support, careful load transfer, stable posts or piers, and more labor in a tight crawl space.
Does beam repair include fixing sagging floors?
It may improve a sagging floor if the beam line is the cause, but floor leveling depends on joists, subfloor, posts, piers, foundation movement, and how much lift is safe.
Sources
Research notes and review date
These pages use current cost references, structural repair explainers, and crawl space moisture guidance.
- Crawlspace Medic masonry, beam, and post pier repair guide
- CrawlRepair sagging floor crawl space cost and methods guide
- CrawlRepair crawl space foundation repair cost and methods guide
- Angi sagging floor repair cost guide
- Angi floor joist repair cost guide
- Angi crawl space repair cost guide
- HomeGuide sagging floor repair cost guide
- Crawlspace Energy Institute structural repair methods guide
Last reviewed: July 30, 2026.