Franklin is 15 minutes south of my shop in Hill, and it's on most of my routes already. Between the older homes around Central Street, the camps on Webster Lake, and the commercial stretch along Route 3 and Route 11, there's almost always a Franklin excavation job in the schedule. Two things shape the work here: a lot of pre-1950 housing stock with foundations that pre-date modern drainage standards, and a downtown that sits where the Pemigewasset and Winnipesaukee Rivers converge to form the headwaters of the Merrimack.
Owner-operator. The same person walks the site, runs the machine, and writes the estimate.
Older-home drainage and foundation work
Franklin has the highest concentration of older homes in my service area: turn-of-the-century housing stock around Central Street, the older neighborhoods off Mill City Park and Odell Park, and the residential blocks closer to Franklin Falls Dam. A lot of these homes date to when basements were stone-walled holes in the ground and foundation drainage wasn't a spec anyone asked for.
Wet basements every spring are the most common Franklin excavation call I get. The fix is usually simpler than the homeowner expects: a curtain drain dug on the uphill side, regrading the lot so water pitches away from the foundation, or installing a perimeter drain around an existing foundation while the lot's already opened up. None of these are exotic. Most are one or two days of machine time. Cheaper than living with a flooded basement, and it solves the problem permanently instead of band-aiding it with a sump.
Driveway excavation on Franklin's terrain
Franklin driveways tend to be flatter than the ones up in Plymouth or out toward Bristol. The town sits in a river valley, so the residential lots are mostly level. The challenge isn't grade, it's drainage. A driveway near the Pemigewasset or Winnipesaukee, or in the lower-elevation neighborhoods, often sits on elevated groundwater, and the driveway spec that works on dry, high ground will turn to mud here.
What works in Franklin: a deeper bank-run base, a proper crown for shedding water, and drainage that takes runoff somewhere away from the lot. See the NH gravel driveway cost & build guide →
Webster Lake camp excavation and septic replacement
Webster Lake on the north side of Franklin has a similar mix of camps and year-round homes to Newfound, with plenty of older shoreline septic systems past their design life. Replacement is the right call before a failure puts contamination into the lake.
Webster is covered by NH's Shoreland Water Quality Protection Act (RSA 483-B): 250 feet of protected shoreland buffer, 50-foot setback for new structures, and 75 to 125 feet for septic separation depending on soil. Septic excavation on a Webster camp gets sequenced around all of that. A licensed designer files the permit under RSA 485-A, then I dig, bed the tank, set it, excavate the leach field, and cover and grade. More on drainage & septic →
Utility trenching and oil-to-propane conversions
A lot of older Franklin homes are still on the original heating oil setup with above-ground or buried tanks well past their warranty. Oil-to-propane conversions are a regular excavation job here: clean trench from the new propane tank to the meter, NH frost depth (~4 feet), buried-tank excavation when there's an old oil tank to pull, code-compliant bedding and backfill. Usually a one-day job.
Standard utility trenches (water, power, sewer or septic laterals) follow the same depth and bedding rules. Deep enough to clear frost, with sand or pea-stone bedding so the line isn't sitting on a rock that'll abrade through it.
What drives the cost in Franklin specifically
- Age of the existing infrastructure. A foundation excavation on a turn-of-the-century home is mostly straightforward until you find an unmapped septic line, an abandoned cistern, or a buried stone wall. Surprises like that are part of working on older Franklin properties. I price for them with a not-to-exceed cap.
- Groundwater. Lots near the river confluence and the lower neighborhoods can sit on elevated groundwater. Wet sites need different bedding, sometimes dewatering, occasionally a different season. A dig that's straightforward in August can be a mess in May.
- Shoreland buffers around Webster Lake. 250-foot buffer, sequenced permits, erosion control. Adds time and cost, but it's the right way to install on the lake.
- Glacial till and the occasional ledge boulder. Standard central NH digging. I flag ledge in the estimate.
Common questions from Franklin
Can you handle drainage problems on older Franklin homes? Yes. Most fixes are simpler than people expect: a curtain drain, regrading, or a perimeter drain installed during another project. Cheaper than living with a flooded basement, and permanent.
Do you do excavation on Webster Lake shoreline properties? Yes. Webster falls under NH's Shoreland Water Quality Protection Act (RSA 483-B). I'm familiar with the buffer rules and the permitting, and septic replacements on older shoreline camps are a regular job.
How fast can you get to Franklin for an estimate? About 15 minutes from Hill. Franklin is on my regular routes, so a site visit is rarely a detour.
Why are Franklin homes especially prone to wet basements? Two reasons: the high concentration of older pre-modern-drainage homes in my service area, and a downtown that sits where the Pemigewasset and Winnipesaukee converge into the Merrimack. Older foundations plus elevated groundwater explains most of the wet-basement calls I get on this side of town.
Related services
- Excavation contractor & site work (main page) — full breakdown of foundation digs, driveways, septic excavation, utility trenching, and drainage.
- Drainage & septic — foundation drains, curtain drains, French drains, septic install & replacement.
- Lot clearing & site prep — brush, small-tree, and stump removal before excavation begins.
- Tree work — mature hardwoods near older Franklin homes, hazard trees, and EAB-killed ash.
- Property services in Franklin, NH — the full menu of work I do across town.
- NH gravel driveway cost & build guide — pricing, base specs, drainage requirements.
- NH septic install guide — the install process and the costs broken down.