Serving Waltham
Groundwater & Basement Water Intrusion in Waltham, MA
Basement seepage, failed sumps, and hydrostatic pressure against the foundation are extracted and dried, and the path from the ground is identified so the loss does not repeat. Groundwater and basement seepage are extracted and dried only after the path from the soil is identified — a wall, a slab, a drain, or a failed sump. Drying the interior without stopping that path returns the same water to the same floor.
Frequently asked questions
The river here is a series of ponds rather than a stream.
Each of the old mill dams holds the reach above it at a fixed height, so the river is a staircase of pools rather than a channel finding its own level. The ground beside each pool sits permanently at that pool's height. It never falls away between storms, which is why a cellar near one is damp all year rather than after rain.
There are old dams above this house. Should that worry anyone?
It is worth understanding rather than worrying about in the abstract. A mill pond sits full nearly all the time, so it offers very little storage in a storm and passes what arrives straight through, which means it neither protects nor threatens as long as the structure is sound. Who owns it, who inspects it and what the last inspection found are fair questions and matters of record.
The ground is ledge. Should that not keep things dry?
Stone supports a building well and absorbs almost nothing. What lands either stays on the surface or finds a seam and follows it, so rather than dispersing through soil it emerges concentrated somewhere downhill. A house on rock therefore sees more water arriving at the foundation, not less. Solid ground and dry ground are separate questions and here they point apart.
Open the Waltham FAQ beside the housing and climate notes.