Foundation Types
The foundation dictates the longevity of the structure, frost protection, and plumbing routing.
Slab-on-Grade
Cost-effective and quick. Ideal for warm climates with shallow frost lines. Disadvantage: Plumbing is encased in concrete, making repairs costly.
Crawlspace
Elevates the home, providing access to plumbing, electrical, and HVAC. Can be vented or encapsulated (sealed/conditioned). Encapsulation is highly recommended to prevent moisture issues.
Basement
Provides additional living space. Requires deep excavation (below frost line) and significant waterproofing (dimple mats, perimeter drains, sump pumps).
| Type | Cost Range/SqFt | Best For |
|---|---|---|
| Slab | $4 - $7 | Warm climates, flat lots |
| Crawlspace | $7 - $14 | Sloped lots, damp soil |
| Full Basement | $15 - $30 | Cold climates (deep frost line) |