Photography
| Image | Credit | Licence | Source |
|---|---|---|---|
| Sump pump in a basement pit | Famartin | CC BY-SA 4.0 | Wikimedia Commons |
| Crawl space with exposed earth floor | TradeCrawlspaces | CC BY-SA 4.0 | Wikimedia Commons |
| Pumping out a flooded basement | DoD photo | Public domain | Wikimedia Commons |
Licence text: CC BY-SA 4.0. Share-alike terms attach to derivative works of the photographs themselves, not to this page or this website. These photographs show basements and crawl spaces outside New Hampshire and are used illustratively rather than as depictions of our own work.
Illustration
The house cross-section showing the six water entry paths, the crack-pattern diagrams on the crack triage page, and the Dry Cellar mark are original illustrations created for this site.
Data
Basement waterproofing and foundation repair cost averages cited on our reference page follow widely published national contractor-survey figures. New Hampshire frost depth is given as the commonly used design figure of approximately 48 inches; it varies with location, soil and snow cover, and your town's building official is the authority for a specific site. All other price ranges are our own and reflect typical Lakes Region residential work.