Spray foam insulation
High-performance spray foam that air-seals and insulates in one application.
Learn moreServing Kennewick, WA and surrounding areas. (509) 206-9343

Kennewick Insulation provides spray foam, attic insulation, and crawl space insulation to Yakima homeowners. We have served the Yakima Valley since 2023 and work on everything from the city's pre-1960 craftsman bungalows near downtown to newer ranch subdivisions in the West Valley.

Yakima's 70-degree seasonal temperature swing - from hard January freezes to 100-degree July heat - makes spray foam the highest-performance option for crawl spaces and rim joists, where it seals air leaks and adds R-value in one step. See our full spray foam insulation services.
About half of Yakima's homes were built before 1970, and many have attic insulation well below the R-49 recommended for Washington's Climate Zone 5B. Bringing attic depth up to current standards cuts both heating costs in winter and cooling costs during Yakima's long, hot summers.
For Yakima's older craftsman bungalows and early ranch homes, blown-in cellulose or fiberglass is the most practical way to upgrade attic depth and dense-pack wall cavities without disturbing original wood siding or interior plaster. The method is fast and does not require homeowners to vacate during installation.
Yakima winters send cold air through uninsulated crawl spaces and up through floors, making bedrooms and living areas above the crawl space uncomfortable even when the furnace is running. Crawl space insulation combined with vapor barrier installation stops ground moisture and cold air infiltration at the source.
Stucco and wood-sided homes from Yakima's 1920s through 1960s construction boom typically have little or no cavity insulation. Dense-pack blown-in through small drilled holes is the standard retrofit fix - it works without removing siding and is a practical upgrade for homes in Yakima's older central and downtown-area neighborhoods.
Yakima sits at roughly 1,100 feet elevation in a semi-arid river valley that receives about 8 inches of rain per year. The Cascade Mountains block most Pacific moisture, leaving Yakima with approximately 300 sunny days annually and a climate that swings hard in both directions. January lows average around 23 degrees Fahrenheit, and temperatures below 10 degrees occur in most years. Summers push average July highs to around 90 degrees, with 100-plus-degree stretches common from June through August. A home with inadequate insulation is fighting both extremes simultaneously, and the utility bills reflect it. The U.S. Department of Energy consistently identifies insulation as one of the highest-return improvements a homeowner can make in climates with both hot summers and cold winters.
About half of Yakima's homes were built before 1970, according to census data - and a significant share predate 1960. Craftsman bungalows near downtown, early ranch homes across the valley floor, and Victorian-era houses in older residential streets all share the same problem: minimal wall insulation by today's standards and attic depths that fall well short of Washington State energy code. The dry, sandy-loam soil in the valley also shifts during dry summers and freeze-thaw cycles, which can affect crawl spaces and create gaps in the building envelope over time. These are conditions specific to Yakima, and they require insulation approaches that account for both the climate and the housing stock.
We work regularly on Yakima homes across the full range of the city's building stock - from the pre-1940 wood-frame bungalows near downtown and along Nob Hill Boulevard to the postwar ranch homes on the valley floor and the newer subdivisions out toward West Valley. The older homes in central Yakima require extra prep: cleaning out deteriorated original insulation, sealing plaster bypasses at light fixtures and framing penetrations, and sometimes fabricating baffles to protect soffit venting before we add blown-in depth. We account for all of that in the written estimate before scheduling.
Yakima is easy to navigate once you know the major corridors: Summitview Avenue, Tieton Drive, and Nob Hill Boulevard run east-west through the residential areas, while 16th Avenue and 40th Avenue are the north-south arterials that connect neighborhoods. The Yakima Valley SunDome on the west side of the city and the Yakima Farmers Market downtown are the landmarks that most homeowners use to orient directions. We serve homes from the neighborhoods near the Yakima River Greenway to the hillside homes above Terrace Heights.
Our service territory extends north to Selah, which borders Yakima at the Selah Gap just north of the city, and south through Union Gap, where the valley floor continues and a mix of older and newer homes sits just minutes from central Yakima.
We respond within 1 business day. Tell us which rooms feel drafty or uncomfortable, or mention that your energy bills have risen. No photos or measurements are needed before the visit.
We check the attic, walls, and crawl space, measure current insulation depth, and look for air sealing gaps. You receive a written, itemized estimate with no obligation to move forward.
Most blown-in attic jobs in Yakima finish in one day. Spray foam crawl space and wall dense-pack projects typically take one to two days. You do not need to leave your home for blown-in work.
We walk you through the completed work and confirm insulation levels achieved. You receive written documentation useful for Benton PUD and Pacific Power utility rebate applications.
We serve all Yakima neighborhoods - no travel fees, no pressure, written estimate before any work starts.
(509) 206-9343Yakima is the largest city in the Yakima Valley, with about 96,000 residents, and the commercial and institutional hub for the surrounding agricultural region. The city sits at around 1,100 feet elevation on the valley floor, bordered by the Yakima River to the west and rising terraces and hills to the east. Most of the established residential neighborhoods lie between the river and Nob Hill Boulevard, with a concentration of older craftsman bungalows and mid-century ranch homes in central Yakima and newer subdivisions spreading out toward the west and south. The city of Yakima has a rich agricultural heritage as one of the top apple and hop-growing regions in the United States.
Yakima's housing stock reflects the city's long history. Homes near downtown and along the older residential streets were built in the 1910s through 1940s, with wood-frame craftsman and early ranch styles. The postwar decades added streets of single-story ranch homes across the valley floor. More recent growth has pushed into the West Valley and toward the Terrace Heights area east of the river. Nearby Selah sits just north of the city through Selah Gap, and Union Gap borders Yakima to the south along the valley floor.
High-performance spray foam that air-seals and insulates in one application.
Learn moreKeep heat in during winter and out during summer with proper attic insulation.
Learn moreLoose-fill insulation blown into attics, walls, and hard-to-reach areas.
Learn moreWhole-home insulation solutions to improve comfort and reduce energy bills.
Learn moreSafe removal of old, damaged, or contaminated insulation materials.
Learn moreInsulate and condition your crawl space to prevent moisture and heat loss.
Learn moreInterior and exterior wall insulation for new builds and existing homes.
Learn moreSeal air leaks throughout your home to cut drafts and energy waste.
Learn moreBasement wall and rim joist insulation to improve efficiency and comfort.
Learn moreDense, moisture-resistant closed-cell foam for maximum R-value per inch.
Learn moreFlexible, sound-dampening open-cell foam for interior walls and attics.
Learn moreSeal attic bypasses before insulating to stop conditioned air from escaping.
Learn moreHeavy-duty vapor barriers to protect crawl spaces from ground moisture.
Learn moreProfessional vapor barrier installation for crawl spaces, basements, and walls.
Learn moreUpgrade insulation in existing homes without major renovations.
Learn moreCommercial-grade insulation for offices, warehouses, and multi-family buildings.
Learn moreServing these cities and communities.
Call or request a free estimate today - most Yakima jobs are scheduled within the week, and our crews work throughout the valley.