Demolition Contractors in Kenmore, WA

Kenmore spans the north end of Lake Washington, and demolition contractors here work on two kinds of ground. Wikipedia describes the terrain as rolling hills formed from glacial till, interrupted by flatter land near large bodies of water. The Sammamish River, which connects Lake Sammamish to Lake Washington, divides the city into northern and southern halves. Kenmore incorporated on August 31, 1998, and counted 23,914 residents and 9,589 housing units in 2020.

Dense glacial soils

The glacial till under much of Kenmore is dense and drains slowly. The USDA describes the Alderwood series, a common western Washington upland soil, as having a dense layer 50 to 100 centimeters below the surface with low conductivity. For a demolition that means rainwater sits on top instead of soaking in. A bare lot in November turns to standing water and mud quickly, so we rock the construction entrance, protect catch basins and keep stockpiles covered. Removing a basement also leaves a hole that fills with water if it is not backfilled or covered promptly; we plan for that.

Near the river and Swamp Creek

In the northeast corner of the city, a narrow band of swamps and marshlands runs north to south along Swamp Creek, surrounded by the 17-acre Wallace Swamp Creek Park. Lots near the creek, the river or the lake shoreline need extra care: tight erosion control, equipment kept on firm ground and no stockpiles near the water. Some of these areas may also have critical-area review requirements, which we confirm with the city before scheduling.

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Asbestos and notification

Kenmore follows the Puget Sound Clean Air Agency's rules: a survey by an AHERA-certified building inspector, a demolition notification for structures with more than 120 square feet of roof area whether or not asbestos is found, and a 10-day wait after filing. Many Kenmore houses were built under King County before the city incorporated, often in the 1950s through the 1980s, so asbestos in flooring, ceiling texture or duct wrap is common.

Permits and utilities

The City of Kenmore issues the demolition permit. Sewer and water in Kenmore are provided by utility districts, so the cap-off approval comes from the district that serves your lot. Power and gas are terminated by the utilities, and we call 811 for locates before removing foundations.

Industrial lakefront, residential hills

Kenmore has one of the last industrial ports on Lake Washington, at the mouth of the Sammamish River, and Kenmore Air Harbor is one of the largest seaplane-only airports in the world. Most of our Kenmore work is residential, but we also handle small commercial buildings, slabs and pavement.

Kenmore services

• House demolition and foundation removal
• Garages, sheds and shops
• Concrete driveways, patios and walls
• Interior demolition
• Pool removal

Call (425) 598-0539 to schedule a walkthrough.