Cities in Delaware
- Wilmington6 companies
- Lewes3 companies
- Newark3 companies
- Sussex County3 companies
- Lincoln2 companies
- Ellendale1 company
- Greenwich Township1 company
- Kent County1 company
- Millsboro1 company
- New Castle1 company
- New Castle County1 company
- Smyrna1 company
Companies in DE by type
| Foundation repair specialists | 3 |
|---|---|
| Waterproofing & crawl space | 13 |
| Concrete contractors | 7 |
| Masonry contractors | 1 |
Cities with the most companies in DE
| Wilmington | 6 |
|---|---|
| Lewes | 3 |
| Newark | 3 |
| Sussex County | 3 |
| Lincoln | 2 |
| Ellendale | 1 |
| Greenwich Township | 1 |
| Kent County | 1 |
| Millsboro | 1 |
| New Castle | 1 |
Foundation repair cost in Delaware
Typical ranges in DE
- Crack injection (epoxy or polyurethane), non-structural$249–$797 per crack
- Settling or sinking foundation repair$4,482–$19,920
- Underpinning a foundation$9,960–$29,880
- Bowing basement wall repair$4,980–$14,940
- Concrete slab foundation repair$996–$9,960
- Crawl space foundation repair$2,490–$7,968
- Interior basement waterproofing$5,976–$11,952
- Crawl space encapsulation$3–$10 per sq ft
| Repair | Delaware | Unit | U.S. range |
|---|---|---|---|
| Crack injection (epoxy or polyurethane), non-structural | $249–$797 | per crack | $250–$800 |
| Settling or sinking foundation repair | $4,482–$19,920 | total | $4,500–$20,000 |
| Helical pier, installed | $1,992–$3,984 | per pier | $2,000–$4,000 |
| Steel push pier / piering, installed | $996–$2,988 | per pier | $1,000–$3,000 |
| Bowing basement wall repair | $4,980–$14,940 | total | $5,000–$15,000 |
| Concrete slab foundation repair | $996–$9,960 | total | $1,000–$10,000 |
| Pier and beam foundation repair | $1,494–$14,940 | total | $1,500–$15,000 |
| Crawl space foundation repair | $2,490–$7,968 | total | $2,500–$8,000 |
| Crawl space encapsulation | $3–$10 | per sq ft | $3–$10 |
| Interior basement waterproofing | $5,976–$11,952 | total | $6,000–$12,000 |
| Mudjacking (slab jacking) | $4–$9 | per sq ft | $4–$9 |
| Foundation inspection | $299–$747 | total | $300–$750 |
National ranges from public cost guides (checked October 2026) × the Delaware factor ×0.996, from its BEA price level (99.3, U.S. = 100). Local soil, depth to firm ground and access move real quotes more than the state does. Open the calculator for Delaware.
Foundation repair companies in Delaware
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Dashed pins are service-area companies. Map data © OpenStreetMap contributors.
All foundation repair companies in Delaware
- 58 Foundations & WaterproofingNewark, DE
- Foundation inspection
- Foundation crack repair
- Foundation settlement repair
Free estimateFinancing - Poured Foundations of Delaware, Inc.Newark, DE
- Foundation waterproofing
- DelaRay FoundationsLincoln, DE
- DryZone, LLCEllendale, DE
- Foundation crack repair
- Foundation settlement repair
- Foundation underpinning
Free estimateWarrantyFinancing - Total Basement CareWilmington, DE
- Foundation crack repair
- Foundation settlement repair
- Crawl space foundation repair
Free estimate - WDM Basement WaterproofingWilmington, DE
- Foundation inspection
- Foundation crack repair
- Foundation settlement repair
Free estimate - Adam Basement WaterproofingWilmington, DE
- Crawl space foundation repair
- Bowing basement wall repair
- Foundation waterproofing
Free inspectionWarranty - Completely Dry WaterproofingWilmington, DE
- Foundation crack repair
- Bowing basement wall repair
- Foundation waterproofing
Free estimateWarrantyFinancing - Seaside Crawl SpaceKent County, DE
- Foundation settlement repair
- Crawl space foundation repair
- Foundation waterproofing
Free estimate - Delaware Crawl Space CompanyLewes, DE
- Foundation crack repair
- Foundation waterproofing
- Crawl space encapsulation
- Best Choice Waterproofing & Remodeling, LLCNew Castle County, DE
- Foundation crack repair
- Foundation waterproofing
- Crawl space encapsulation
Free estimate - Quality Crawlspace and MoreSussex County, DE
- Foundation waterproofing
- Crawl space encapsulation
Free inspection - Deadwood Services & Construction LLCGreenwich Township, DE
- Foundation waterproofing
Free estimate - Basement Pros WaterproofingSmyrna, DE
- Basement UnlimitedLewes, DEFree estimate
- Newman Waterproofing, LLCNewark, DE
- Restoration Dynamics LLCWilmington, DE
- Foundation waterproofing
Free estimate - Delaware Concrete CoatingsLewes, DE
- F & N Vazquez Concrete LLCLincoln, DEFree estimate
- R. S. Widdoes & Son, Inc.Wilmington, DE
- Delaware Concrete FoundationMillsboro, DE
- Denn-Con Concrete ServicesNew Castle, DE
- Absolution IncSussex County, DE
- CrownPoint Chimney & Masonry LLC.Sussex County, DE
- Foundation waterproofing
Most named repairs in DE
- Foundation waterproofing
- Crawl space encapsulation
- Foundation crack repair
- Crawl space foundation repair
- Bowing basement wall repair
- Foundation settlement repair
- Helical pier foundation repair
- Concrete leveling (mudjacking & foam)
- Foundation inspection
- Slab foundation repair
- Push pier foundation repair
- Foundation underpinning
Foundation repair in Delaware: common questions
How much does foundation repair cost in Delaware?
Estimates for Delaware (October 2026): crack injection $249–$797 per crack, a settling or sinking foundation $4,482–$19,920, helical piers $1,992–$3,984 each and basement waterproofing $5,976–$11,952 (interior). Calculate your repair.
Does a foundation repair contractor need a license in Delaware?
Contractor licensing is set by each state, and some leave it to cities or counties. Some states license this work at state level (for example the CSLB in California, the Registrar of Contractors in Arizona or the DBPR in Florida); others only require registration or local licenses. Check the license or registration number on your state's or city's public lookup before you pay a deposit, and ask for proof of liability insurance.
How are companies in Delaware chosen?
They come from Google Maps searches for foundation repair in each state; we read each website for the repairs it names. Nobody pays for a position. See how this directory works.