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 home insulation, blown-in attic upgrades, crawl space encapsulation, and wall insulation to Union Gap homeowners. We have served the Yakima Valley since 2023, working regularly on the older ranch homes, stucco-exterior houses, and manufactured homes that make up most of Union Gap's residential neighborhoods.

Union Gap's 1950s through 1980s ranch homes were built without today's energy code requirements, and most have under-insulated attics, hollow wall cavities, and uninsulated crawl spaces that make heating and cooling far more expensive than it should be. A whole-home insulation assessment finds every gap and addresses them in order of impact. Read more about our home insulation services.
Blown-in cellulose or fiberglass is the most practical method for topping up attic insulation in Union Gap's ranch homes because it conforms to any framing layout and can reach into tight corners that batt insulation cannot. Most attic jobs in Union Gap finish in a single day and deliver an immediate reduction in heating and cooling costs.
Most of Union Gap's single-story homes sit on vented crawl spaces that pull cold Yakima Valley air under the living floors through the winter months. Insulating between the floor joists and sealing the crawl space keeps floors warmer, reduces the load on the furnace, and protects water pipes from freezing during hard cold snaps.
The Yakima Valley's semi-arid soil holds and releases ground moisture seasonally. Without a properly sealed vapor barrier, that moisture migrates up through the crawl space and into floor framing, leading to wood rot, mold risk, and reduced insulation performance over time.
Many of Union Gap's older wood-frame homes have wall cavities that were never insulated or were only partially filled at the time of construction. Dense-pack blown-in installation fills those cavities from the exterior with minimal disruption and makes a real difference in how the home holds temperature between heating and cooling cycles.
Union Gap sits at the south end of Yakima, fully inside the Yakima Valley rain shadow. The valley receives about 8 inches of rain per year, and there is no marine air mass to moderate temperatures. Summers regularly reach 100 degrees Fahrenheit and above, while January nights can drop into the teens. That kind of seasonal swing puts real pressure on home heating and cooling systems - and a home with an under-insulated attic, hollow wall cavities, or an unprotected crawl space transfers the full force of those temperature extremes directly into the living space. Union Gap homeowners feel this in their utility bills every single season.
Most of Union Gap's housing stock was built between the 1950s and 1980s, when the city grew steadily as part of the broader Yakima Valley agricultural expansion. These homes - single-family wood-frame houses, many with stucco exteriors, some manufactured homes mixed in - were built before modern energy codes required wall cavity insulation, deep attic coverage, or vapor control in crawl spaces. Decades later, the original insulation has often settled and lost effective R-value, and the air sealing was minimal to begin with. Many crawl spaces under these homes are vented, which was the standard practice at the time but creates real cold air infiltration problems through the floor in winter.
Our crew works regularly in Union Gap on the older single-story homes and manufactured housing that make up a large share of the city's residential stock. These properties often have lower attic clearances and tighter crawl space access than newer homes, which requires different equipment setup and staging than a standard two-story build. We are familiar with the type of work that older Union Gap homes typically need, and we prepare accordingly before arriving on-site.
Union Gap is a small, compact city - mostly east of Highway 97 and south of the Yakima city boundary. Most residential neighborhoods are within a short distance of Main Street, which runs through the center of town. The Yakima River borders the west side of Union Gap, and residents near the river corridor occasionally see higher ground moisture levels in spring, which makes crawl space vapor barriers especially valuable on those properties. The Union Gap city limits are compact, and virtually all residential addresses here are within a short drive of each other.
We also serve neighboring Yakima, which borders Union Gap directly to the north - the same crew covers both cities on the same route. Homeowners in Moses Lake to the northeast are also within our service area, and many of the same older ranch-home insulation needs apply there as well.
We respond within 1 business day. Let us know what you are experiencing - high bills, cold floors, drafty rooms - and we will schedule a free on-site visit at your convenience. No photos or measurements are needed before we arrive.
We inspect the attic, walls, and crawl space, measure actual insulation depth and R-values in each area, and check for air sealing issues at key bypasses. You receive a written, itemized estimate at the end of the visit with no obligation.
Most blown-in attic jobs in Union Gap finish in one day. Crawl space and wall dense-pack projects typically take one to two days. You do not need to leave your home during blown-in attic work.
Before we leave, we confirm insulation depths and air sealing completed, and walk you through everything done. You receive written documentation of materials and R-values, which is useful for utility rebate programs and future home sales.
We serve Union Gap and the entire Yakima Valley. No obligation. Written estimate at your first visit.
(509) 206-9343Union Gap is a small city of about 6,000 people sitting directly south of Yakima in the Yakima Valley. Despite sharing a border with Yakima, Union Gap has its own city government and a distinct community identity. The city is one of the most predominantly Hispanic communities in Washington State, with deep roots in the valley's agricultural history. Residentially, Union Gap is primarily a working-class single-family neighborhood city - most homes are modest wood-frame houses on standard lots, with a mix of stucco-exterior properties and some manufactured housing. Interstate 82 and Highway 97 cross through the area, making Union Gap easy to access from surrounding communities. The Yakima Valley setting means residents experience the same semi-arid climate that affects all properties in this part of Eastern Washington.
Most of Union Gap's housing stock dates from the 1950s through the 1980s - a generation of homes built for working families when the valley was growing fast. Many of these homes have been well maintained but have not had their insulation systems updated since original construction. Property owners in Union Gap tend to be practical about home maintenance, looking for reliable work at a fair price rather than high-end renovations. Nearby Selah to the north has a similar ranch-home housing stock and climate profile, and homeowners between the two cities often have the same insulation upgrade needs.
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 us or submit a request today - we respond within 1 business day and offer free on-site estimates with no obligation for Union Gap homeowners.