Foundation Cost Calculator
Embed this calculator on your site
Add this calculator to your blog, landing page, or resource hub with responsive embed code. Include the optional attribution card to keep a source backlink for SEO trust signals.
1) Responsive iframe embed
Best for direct interactivity in modern layouts.
2) Minimal calculator + backlink
No heading/image text above widget. Only calculator area, result area, and attribution link.
What this foundation cost calculator is for
This page answers new-build or full-replacement foundation shell budgeting questions: slab-on-grade, crawl space, or basement wall and footing class work sized from main footprint square feet, plus an optional attached garage slab adder. It is intentionally separate from the site’s foundation repair cost calculator, which models stabilization of an existing failed assembly (injection, straps, piers, drainage stress).
New foundation vs foundation repair (search intent)
- New / replacement shell: pour or block narrative, excavation, footings, slab or floor system, waterproofing conversations for basements, and regional concrete labor—all scaled from footprint and system type.
- Repair: discrete retrofit line items tied to crack patterns, bowing, pier counts, and hydrostatic stress—usually not a simple dollars-per-square-foot of whole-house footprint.
If your wall is moving now, start with a structural evaluation path and the repair tool; if you are pricing a new home or lifting and replacing a shell, stay on this foundation cost page and still pull a geotech letter.
How to read the low–mid–high band
The three anchors are illustrative planning tiers, not bids. They fold in a coarse soil / frost / moisture proxy, a regional index, and your contingency slider. Mid is the conversation anchor; low assumes forgiving scope and schedule; high assumes tighter access, more rebar or pump logistics, or conservative GC padding.
What is excluded on purpose
- Stamped geotechnical recommendations, engineered pad redesign, and jurisdiction-specific seismic or wind detailing.
- Full basement finish, under-slab plumbing rough beyond a generic shell narrative, and export or structural fill import priced per ton.
- Demolition of an existing structure, house move, or temporary shoring—common on replacement jobs but not modeled here.
Related planning tools
For whole-house envelopes, pair results with the construction cost calculator, home addition cost calculator, or cost to build a garage calculator. If the risk is existing wall movement, use foundation repair cost calculator instead.
Disclaimer
Educational planning only. Costs vary by code cycle, commodity spikes, dewatering, and contractor backlog. Obtain written proposals from licensed contractors and engineers for your site.