Spray foam insulation
High-performance spray foam seals air leaks and delivers superior R-values for lasting energy efficiency.
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Serving Hollister, CA and surrounding areas. (831) 271-0020
Hollister Insulation is a licensed insulation contractor serving Turlock, CA with wall insulation, attic insulation, and blown-in services - most inquiries answered within 1 business day. We work throughout Turlock and understand what the Valley's summer heat demands from a home's insulation system.
Most Turlock homes from the 1950s through the 1980s have stucco-clad wood-frame walls with little or no insulation in the cavities. In a climate where summer temperatures regularly exceed 100 degrees, empty wall cavities allow radiant heat to pour into every room along the exterior perimeter. Our wall insulation service fills those cavities using a drill-and-fill process that avoids the need to tear out finished interior surfaces.
In Turlock summers, attic temperatures can reach 150 degrees or higher for weeks at a time. A thin or settling attic insulation layer that might be acceptable in a milder climate is a real problem here - it is the primary driver of rooms that stay uncomfortably hot all day even with the air conditioning running. Bringing attic insulation to R-38 or higher is the single most impactful change most Turlock homeowners can make to reduce cooling costs.
Blown-in cellulose or fiberglass fill is well suited to Turlock's older homes, where wall cavities may have irregular blocking or settled batts that need to be filled around existing obstructions. The material installs quickly, settles into all cavity corners without gaps, and does not require demolition of existing interior or exterior finishes - important on the stucco-clad homes that are common throughout the city.
Gaps around recessed lights, attic hatches, and top plates in Turlock homes allow super-heated attic air to move directly into the living space, undermining even well-installed insulation. Sealing those bypasses before adding insulation material is what separates a job that performs as expected from one that delivers disappointing results on the next summer electric bill.
For Turlock homeowners dealing with hard-to-reach cavities, rim joists, or areas that need both insulation and air sealing in a single application, spray foam performs exceptionally well in the Valley's temperature extremes. Closed-cell foam in particular resists both the summer heat and the tule fog moisture that settles on surfaces during Turlock's winter months.
Turlock sits in the middle of the San Joaquin Valley, one of the most thermally demanding environments in California for residential buildings. Summers are long and severe - temperatures above 100 degrees Fahrenheit are routine from June through September, with almost no rain from May through October. That sustained heat bakes exterior wall surfaces, drives radiant heat through under-insulated attics, and dries out caulk and sealants that keep the building envelope tight. An insulation system that was adequate when installed in the 1970s or 1980s is working against conditions it was not fully designed for, because building energy codes in that era had lower requirements than what the Central Valley actually demands.
The clay-heavy soils under most Turlock homes add another layer of stress. These soils expand when wet during the rainy season and shrink back as they dry out each spring. That annual movement puts pressure on slab foundations and on the wall framing connected to them, creating small cracks and gaps in the building envelope over time. In older homes with original stucco, those cracks allow outside air to bypass wall insulation and reach interior surfaces. Tule fog - the ground-level fog that settles over the Central Valley for days or weeks in winter - makes this worse by keeping surfaces damp for extended periods, which can accelerate moisture buildup behind stucco finishes and degrade insulation material that is not designed for wet exposure.
Our crew works throughout Turlock and regularly encounters the postwar stucco-clad ranch homes that dominate the city's older neighborhoods - homes with concrete slab foundations, two-car garages, and wall cavities that have never been insulated. The pattern in the older parts of town near downtown is different from the newer east-side and south-side subdivisions near Geer Road and Monte Vista Avenue, where homes from the 2000s are better insulated but may have attic levels that need topping up to meet current California standards. When permit work is required, we coordinate with the appropriate local authority.
Highway 99 runs through the center of Turlock and serves as the backbone of the city. The CSU Stanislaus campus sits on the north side, and the commercial corridor along Monte Vista Avenue and Geer Road marks the growing east side. We serve homes across all of those areas and know what to expect in terms of access, parking, and site conditions in each part of town. Turlock Lake State Recreation Area draws families east of the city on weekends, and we are familiar with the neighborhoods that surround that eastern corridor.
We also serve homeowners in nearby Los Banos and Merced, where the same Central Valley heat conditions and older housing stock create nearly identical insulation challenges.
Reach us by phone at (831) 271-0020 or use the online contact form. We respond to Turlock inquiries within 1 business day and aim to schedule your assessment quickly, especially before summer heat peaks.
A technician visits your Turlock home, inspects the attic, walls, and any other areas of concern, and measures existing insulation levels. You receive a written estimate at no charge - the assessment itself costs nothing.
We confirm a date that works around your schedule and complete most Turlock jobs in one to two days. You do not need to leave your home - the crew works in the attic and wall cavities without disrupting your daily routine.
Before the crew leaves, we walk you through the completed work, confirm the installed R-value and coverage area, and leave the space clean. Any patching on drilled exterior stucco surfaces is included in the project scope.
No cost, no obligation. We serve Turlock and respond within 1 business day.
(831) 271-0020Turlock is a city of about 75,000 people in Stanislaus County, located along Highway 99 between Modesto to the north and Fresno to the south. It is one of the larger cities in the Central Valley and has an economy rooted in agriculture, food processing, and regional services. The city is home to California State University, Stanislaus, which anchors the north side of the city and is one of its largest employers. Most of Turlock is a community of longtime residents and owner-occupied homes - it has a settled, established character that sets it apart from faster-growing suburbs.
The housing stock in Turlock is largely single-family, with most homes built on concrete slab foundations with stucco exteriors. Older neighborhoods near downtown have homes from the 1920s through the 1950s, while the bulk of the city was developed from the 1960s through the 1990s with ranch-style homes on modest lots. Newer subdivisions on the east and south sides of the city, particularly around Monte Vista Avenue and toward the direction of Turlock Lake State Recreation Area, have homes from the 2000s and 2010s with larger floor plans and more recent construction. Homeowners across both the older and newer parts of Turlock benefit from professional insulation assessments - the older homes because original materials have aged, and the newer homes because Central Valley heat standards have risen. Nearby communities including Merced and Manteca face the same conditions and are also served by our team.
High-performance spray foam seals air leaks and delivers superior R-values for lasting energy efficiency.
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Valley heat is relentless - call Hollister Insulation now and schedule a free insulation assessment before the next heat wave arrives.