Attic and Crawl Space Work in Lynnwood
Lynnwood is where our office is, and it is where we do more crawl space work than anywhere else. A large share of the city's houses went up in the 1960s and 1970s as ramblers and split-levels on crawl space foundations, with attic insulation that has never been touched since. Many of them are now on their second or third owner, and the crawl space has quietly been collecting fifty years of moisture, rodents and repair debris.
What fifty-year-old Lynnwood houses tend to have
- Original 4- to 6-mil plastic in the crawl space, torn and bunched, with soil showing through
- R-19 batts under the floor with failed or missing supports
- R-11 to R-19 in the attic, often matted down by rats traveling the attic floor
- Split-level transitions where the attic over the upper level opens into the wall cavity over the lower level — a direct rodent highway and a major air leak
- Bath fans added during later remodels that were ducted only as far as the attic
Rats along the creek corridors
Neighborhoods near Scriber Creek, Swamp Creek and the green belts that run through the city see steady roof rat and Norway rat pressure, because the creeks and ravines give rodents cover and water. Houses that back onto green space get our full roofline-to-foundation exclusion inspection by default.
Utility programs for Lynnwood homes
Snohomish County PUD supplies electricity in Lynnwood, and Puget Sound Energy supplies natural gas. Both have offered weatherization incentives for insulation and air sealing at various times. Eligibility depends on how your house is heated. We will check what applies to your address during the inspection.
Lynnwood price ranges
| Typical Lynnwood job | Range |
|---|---|
| Rambler crawl space, new 10-mil barrier, R-30 floor insulation | $5,000 – $8,500 |
| Split-level attic, air sealing + R-49 | $3,200 – $5,200 |
| Rodent exclusion, single-story | $900 – $1,800 |
| Encapsulation, 1,200 sq ft crawl space | $11,500 – $15,500 |
Lynnwood questions
How soon can you inspect?
Lynnwood addresses are minutes from our office, so inspections are usually available within a few business days.
My split-level has a crawl space under only part of the house. Is that normal?
Yes. Many split-levels here have a slab or a short basement under the lower level and a crawl space under the main level. We inspect each section separately.