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A contractor carrying a dehumidifier toward a basement entrance, the van open on the drive behind.

Serving Longmont

Groundwater & Basement Water Intrusion in Longmont, CO

Basement seepage, failed sumps and water through the slab are extracted and dried, and the path from the ground is found so the floor stays dry next season. The path from the ground is named first: through the wall, up through the slab, back through a drain, or from a sump that stopped. The space is extracted and dried, with the porous materials the water touched removed, and the delivery is addressed, because a dried floor only stays dry if the water stops arriving.

Quoted on site by the contractor who visits

Often needed alongside

  • Structural Drying & Dehumidification

    Sealed air movers and dehumidifiers bring framing, subfloor and drywall back to a measured dry standard, with daily readings logged from inside the material.

  • Emergency Water Extraction

    Standing water is pumped and extracted around the clock, before it climbs the walls and soaks the subfloor. Same-day response where coverage allows.

  • Mold Inspection & Testing

    An independent assessor confirms whether the assembly that got wet is actually dry, whether growth started while it was not, and how far it reaches.

A homeowner and a contractor at the door discussing a basement that takes water every wet season.
The assessment happens on site, not over the phone.

Frequently asked questions

How does a creek move its channel?

In one event, when the flow gets high enough to leave its banks and cut a new route across the floodplain rather than returning. It is not gradual erosion; it happens over hours, and afterward the water is running somewhere it has not run for a very long time.

Does the old channel still matter?

Very much, because the ground remembers it. The buried gravels of the abandoned course are still there and still permeable, so ground water runs along the old line as well as the new one, and properties over it stay wetter than their neighbors.

Which map should be trusted?

The most recent survey rather than the title documents, and it is worth checking that they agree. Plans drawn before the channel moved are still in circulation and still being relied on, and a property's relationship to the water may not be what the paperwork says.

The same questions, in context, on the Longmont city page.

Need groundwater & basement intrusion in Longmont now?

Call (833) 243-4415
Call a Local Pro — (833) 243-4415