Serving Chico, CA and surrounding areas. (530) 924-5802
Chico Insulation is a licensed insulation contractor serving Davis, CA with air sealing, blown-in insulation, and attic insulation for homes throughout Yolo County. We have been completing insulation projects in Davis since 2022, working on everything from 1960s ranch homes near the UC Davis campus to newer stucco subdivisions in Mace Ranch and Wildhorse, and every job comes with a written estimate before work starts.
Davis homes built in the 1950s through 1980s around the UC Davis campus and in the Avenues neighborhood were constructed before modern energy codes required air barriers, which means gaps around original plumbing, electrical, and framing penetrations are common. During summer heat above 95 degrees Fahrenheit and during foggy winter stretches, those gaps let hot air in and conditioned air out. Learn how our air sealing services work and what to expect on the day of the job.
Many Davis homes from the postwar era have attics with original fiberglass batts that have settled and compressed over decades, providing a fraction of their rated R-value. Blown-in insulation covers the full attic floor evenly, reaches irregular framing bays that batts cannot fill, and does not require any demolition. For Davis homeowners dealing with summer heat that pushes into the upper 90s and low 100s, upgrading attic insulation is one of the most direct ways to reduce cooling costs.
Davis sits in the Sacramento Valley, where attic temperatures can exceed 150 degrees Fahrenheit on a summer afternoon even while outdoor air is in the mid-90s. Homes throughout Old East Davis and Old North Davis, many of them ranch-style tract homes from the 1960s, have attic insulation well below what California's current Title 24 energy code requires. Bringing those attics up to a minimum R-38 makes a measurable difference in how long your air conditioner has to run.
Davis sits on Sacramento Valley clay soil that holds moisture released from winter rain well into spring, and older homes throughout the city with raised foundations and open crawl spaces accumulate that ground humidity under the subfloor. Insulating the crawl space reduces cold floors in winter and limits the moisture pathway that leads to wood rot and mold in the floor framing over time.
In Davis, sealing the attic floor before adding insulation is especially important because tule fog can drive moisture into the attic through any gap that connects the living space to the outside. Gaps around recessed lighting, duct penetrations, and the tops of interior walls are the most common entry points in Davis's postwar housing stock. Sealing these first ensures that new insulation performs at its rated value rather than being undermined by air moving through the envelope.
Stucco-clad Davis homes from the 1960s and 1970s frequently have hollow wall cavities where no insulation was installed during original construction. Rooms on the south and west sides of these homes can feel significantly warmer than the interior during Davis's long afternoons. Blown-in wall insulation is added through small holes that are patched afterward, improving comfort in those rooms without any major renovation work.
Davis summers are long and intense. Average high temperatures in July and August sit between 95 and 100 degrees Fahrenheit, and consecutive days above 100 are not unusual. For a home with an under-insulated attic, that heat load transfers directly into the living space, forcing the air conditioner to run almost continuously through June, July, and August. A large portion of Davis's housing stock was built between the 1950s and 1980s, before California adopted the energy efficiency requirements that are standard today, which means many homes were delivered from the builder with attics and walls that would not meet current code for a new construction project.
The winter side of Davis's climate is less dramatic but still relevant. Davis sits squarely in the Sacramento Valley fog belt, and tule fog can settle for days at a time from November through February. That sustained damp keeps humidity high around exterior surfaces, attic vents, and crawl space openings. Homes with unsealed attic floors or open crawl spaces pull that moist air inside, where it can condense on cold framing members and encourage mold growth over time. Insulation and air sealing work together to address both the summer heat gain and the winter moisture problem.
The expansive clay soil under much of Davis adds another dimension. Clay swells when wet in winter and shrinks when dry in summer, putting cyclic stress on crawl space framing and foundation elements. Homes with open, uninsulated crawl spaces experience higher humidity under the floor during wet months, which accelerates the effects of that soil movement on the wood above it. Addressing the crawl space is part of protecting the long-term condition of the home, not just improving comfort.
Our crew has been completing insulation and air sealing jobs in Davis since 2022 and regularly coordinates permitting questions with the City of Davis Building and Safety Division. The housing stock we encounter most often in Davis splits cleanly into two categories: the 1950s through 1970s ranch and tract homes in neighborhoods like Old North Davis and the Avenues, and the larger stucco homes built in the 1990s through 2000s in Mace Ranch and Wildhorse. Those two categories have different construction methods, different insulation profiles, and different air leakage patterns, and we come to each job knowing which set of problems is most likely.
Davis is a compact city that most residents navigate by bicycle. The flat street grid between Interstate 80 and the UC Davis campus is where the oldest housing sits, and the neighborhoods east of Mace Boulevard represent the newer growth. We work across all of these areas regularly. Homeowners near the Yolo Causeway on the east side and those out in Mace Ranch have similar insulation needs despite the different home ages.
We also serve homeowners in Vacaville, just east on Interstate 80, where the housing stock has similar characteristics to Davis's newer subdivisions. Homeowners in Woodland, directly north of Davis on Highway 113, can also reach us for the same range of services.
Reach us by phone or through the contact form and we will respond within one business day. We'll ask a few basic questions about your home's age, size, and the issues you've been noticing so we arrive prepared.
We visit your Davis home, inspect the attic, crawl space, and any problem areas, and measure what insulation is already there. You receive a written estimate before any work is scheduled, so there are no cost surprises.
The crew works primarily in your attic and crawl space. Most Davis air sealing and insulation jobs are completed in a single day. You can stay home throughout the work; we keep the main living areas clear.
When the job is done, we walk you through what was found and what was sealed or insulated. Work areas are left clean. We can also provide documentation you need to apply for PG&E rebates or claim the federal energy efficiency tax credit.
We serve homeowners across Davis, from Old North Davis to Mace Ranch. No obligation, no pressure. Written estimate before any work starts.
(530) 924-5802Davis is a college city of about 68,000 people in Yolo County, 15 miles west of Sacramento along Interstate 80. The University of California, Davis campus defines the city's identity and shapes the housing market, with roughly half of all housing units renter-occupied as a result. For owner-occupants, that context matters: Davis homeowners represent a minority in their own city, and they tend to take long-term property maintenance seriously. The older neighborhoods closest to the UC Davis campus, including Old North Davis and the Avenues, have homes dating to the early 1900s alongside postwar ranch homes from the 1950s and 1960s.
The eastern and southern edges of the city, including Mace Ranch, Wildhorse, and Covell Park, were developed from the late 1980s through the 2000s and have a different character. These neighborhoods feature newer stucco single-family homes with tile roofs, attached garages, and larger lots. At 20 to 35 years old, many of these homes are entering the maintenance cycle where attic insulation, HVAC systems, and air sealing all merit attention. Davis is well known nationally as one of the most bicycle-friendly cities in the country, with more bike lanes per capita than almost any comparably sized city.
Neighbors to the north and west also look to us for insulation work. Woodland is the Yolo County seat, directly north on Highway 113, with its own mix of Victorian historic homes and newer stucco subdivisions. To the east, Vacaville in Solano County is a short drive along I-80 and has comparable housing stock from the same 1970s to 1990s building era.
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Call us at (530) 924-5802 or request a free estimate online. We serve homeowners throughout Davis and surrounding Yolo County communities.
