Foundation excavation is the most consequential work on any residential build.
Payne Construction brings the local knowledge, proper permitting, and proven process to get it done right the first time.
Building a home starts long before the first wall goes up. At Payne Construction, we handle the excavation work that everything else depends on, clearing the lot, digging to engineered depths, and grading for proper drainage. Working in New Hampshire means accounting for deep frost lines, variable soil conditions, and a strictly regulated permitting process. We know this ground, and we sequence every job to meet both local code and sound construction practice.
New Hampshire’s ground doesn’t forgive shortcuts. Frost depths across the state regularly reach 48 to 60 inches, meaning a foundation dug to the wrong depth will heave, crack, and shift through freeze-thaw cycles for as long as the building stands. Soil conditions vary significantly from lot to lot, ledge rock, high water tables, and loose glacial till are all common across southern and central NH, and each one changes how a dig is planned and executed. We’ve worked this ground long enough to know what to expect before we break it.
Yes. Building, zoning, and grading permits must be secured and engineering plans finalized before any excavation begins. We work with homeowners and their builders to confirm all required permits are in place before we schedule a start date.
New Hampshire state law requires contacting 811 before any ground disturbance. When you call or submit online, utility companies send crews to mark the locations of underground gas, electric, water, and communication lines on your property. This happens before our equipment arrives on site, every time.
We excavate for all residential foundation types, full basements, crawl spaces, and slab-on-grade. The dig depth, footprint dimensions, and subgrade preparation process differ for each, and we work from your engineering plans to make sure the excavation matches exactly what your foundation requires.
NH frost depths typically reach 48 to 60 inches. A foundation that doesn’t extend below the frost line will be subject to frost heave, the ground expanding and contracting with freezing and thawing cycles, which causes cracking, shifting, and long-term structural damage. All excavation depths are engineered to local frost requirements.Question 1 Answer
Yes. Once foundation walls are cured and backfilling is complete, we perform rough grading to slope the surrounding ground away from the structure. Proper drainage grading is one of the most overlooked parts of a residential build and one of the most important for long-term foundation health.
Contact Payne Construction with your property address, lot survey, and foundation type if available. We’ll schedule a site visit, review your plans, and put together a detailed scope and quote before any work begins.
