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 local insulation contractor serving Morgan Hill, CA with attic insulation, spray foam, and crawl space services - responding to most inquiries within 1 business day. We work throughout the southern Santa Clara Valley and know what the housing stock here actually needs.
Morgan Hill sits in a valley that traps summer heat, and an under-insulated attic acts like a radiator pushing warmth into your living space all afternoon. Our attic insulation service brings your home up to California Title 24 standards and is the single highest-return upgrade most Morgan Hill homeowners can make for summer comfort.
Morgan Hill receives most of its annual rainfall in concentrated winter bursts, and homes with uninsulated crawl spaces see that moisture work its way up into floor framing and subfloor materials. Insulating and sealing the crawl space keeps ground-floor rooms warmer in winter and protects the wood framing that your home rests on.
Homes near the hillsides and open space west of Morgan Hill often have irregular framing, crawl space rim joists, and gaps that batts and blown-in cannot fully reach. Spray foam fills those irregular cavities and simultaneously seals air pathways, making it a strong choice for Morgan Hill properties with complex roof lines or partially finished spaces.
Morgan Hill homes built in the 1970s and 1980s have accumulated decades of small gaps around pipes, recessed lights, and attic bypasses. Air sealing closes those openings so your insulation performs at its rated value - without it, conditioned air escapes through the ceiling plane and your heating and cooling system works harder than it should.
Morgan Hill properties close to open space and agricultural land see rodent activity that can damage and contaminate attic insulation over time. When existing material is compressed, rodent-affected, or soaked from a past roof leak, removing it before adding new insulation is the only way to ensure the new material performs as rated.
Blown-in loose-fill insulation is the most efficient way to top up existing attic insulation in Morgan Hill homes without removing what is already there. It fills around obstructions like HVAC ducts and old batt edges, covering the entire attic floor evenly - a critical detail in homes where previous insulation has settled unevenly over decades.
Morgan Hill sits at the southern end of the Santa Clara Valley, flanked by the Diablo Range to the east and the Santa Cruz Mountains to the west. That valley geography concentrates summer heat - temperatures regularly reach the mid-90s from June through September with almost no coastal breeze to offer relief. Winters bring rain in heavy concentrated events rather than steady light showers, and the clay soils that underlie most of the valley swell and shrink with those wet-dry cycles. A house here is dealing with thermal stress in summer, moisture pressure in winter, and ongoing ground movement that can open gaps in the building envelope over time. Insulation that met code in 1985 is not adequate for those demands today.
The housing stock makes the case even clearer. Most Morgan Hill homes were built between the 1970s and the late 1990s, when California energy codes were far less demanding than the current Title 24 requirements. That era of construction used fiberglass batts and early blown-in material that has long since compressed well below its original rating. Homes near Cochrane Road in the newer eastern subdivisions face different issues than the older neighborhoods closer to downtown, but both tend to have insulation that is underperforming. Homes with stucco exteriors - which are common throughout Morgan Hill - are also susceptible to wall air leakage when ground movement causes small cracks, and a contractor who works in this area recognizes those patterns quickly.
Our team pulls permits for Morgan Hill projects through the City of Morgan Hill Building and Safety Division when projects require them, and we know the difference between the older neighborhoods near Monterey Road downtown and the stucco tract homes in the newer east-side subdivisions. Each part of town has its own insulation profile - downtown homes often have original fiberglass batts from the 1960s and 1970s, while the Cochrane Road area more commonly presents as settled blown-in from the 1990s with gaps around HVAC penetrations.
Morgan Hill is laid out along Monterey Road and Cochrane Road, and most residents commute north toward San Jose and the rest of Silicon Valley via US-101. We accommodate that schedule - most jobs are completed in a single day, and we keep homeowners updated by phone so there are no surprises when they return home. Whether your property backs up to open space near Uvas Reservoir in the hills or sits in one of the newer neighborhoods off East Main Avenue, we serve the whole city.
We also serve the surrounding region. If you are in Pleasanton, CA to the north, or in Gilroy, CA just south on the 101 corridor, we cover those areas as well. Morgan Hill sits between both communities, and many of the same insulation issues show up across all three cities.
Reach us at (831) 271-0020 or use the contact form on this page. We reply within 1 business day to schedule an in-home assessment. Morgan Hill commuters are welcome to request early morning or weekend appointments.
A technician measures existing insulation depth in your attic, crawl space, and accessible wall cavities. You receive a written estimate before any work is scheduled - no verbal quotes, no cost surprises. This is the right time to ask about PG&E rebate eligibility.
Most Morgan Hill attic insulation jobs finish in three to five hours. Our crew works entirely in the attic - you can stay home throughout. We protect flooring and attic access areas and clean up before leaving.
Before we leave, we walk through the completed work with you so you can see the coverage and ask questions. If any issue comes up after we leave, contact us directly - we respond the same business day.
We serve Morgan Hill homeowners with written estimates, no-pressure consultations, and same-day replies to follow-up questions.
(831) 271-0020Morgan Hill is a city of about 46,000 at the southern end of Silicon Valley, roughly 25 miles south of San Jose via US-101. The city is largely owner-occupied and skews toward single-family detached homes on medium to large lots - a profile that differs noticeably from the denser communities to the north. Downtown centers on Monterey Road and Main Avenue, with local shops, restaurants, and community events that give the city a genuine small-town feel despite its proximity to Silicon Valley. The annual Mushroom Mardi Gras - celebrating Morgan Hill's history as a mushroom-growing region - is one of the most recognized community events in the area.
The housing stock ranges from older bungalows and ranch-style homes near the historic downtown core to newer two-story stucco subdivisions built in the 1990s and 2000s along Cochrane Road and toward the east hills. Properties on the rural edges - particularly along Uvas Road and toward the Santa Cruz Mountains - include larger parcels with outbuildings and older structures. The city also has a well-established wine and agriculture identity: several working vineyards operate along East Main Avenue and in the surrounding hills. If you are comparing options in neighboring communities, we also serve Gilroy, CA and Pleasanton, CA.
High-performance spray foam seals air leaks and delivers superior R-values for lasting energy efficiency.
Learn moreProper attic insulation reduces heat transfer and keeps your home comfortable year-round.
Learn moreLoose-fill blown-in insulation fills irregular spaces and hard-to-reach areas with ease.
Learn moreWhole-home insulation solutions that improve comfort and lower monthly energy bills.
Learn moreSafe removal of old, damaged, or contaminated insulation to prepare for a fresh installation.
Learn moreInsulating your crawl space prevents moisture, mold, and energy loss from below the floor.
Learn moreWall insulation reduces outside noise and improves thermal performance throughout your home.
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Learn moreDense closed-cell foam provides maximum R-value per inch and a strong vapor barrier.
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Learn moreHeavy-duty vapor barriers protect crawl spaces from ground moisture and humidity.
Learn moreProfessional vapor barrier installation prevents moisture damage in walls, floors, and foundations.
Learn moreAttic air sealing stops conditioned air from escaping and cuts heating and cooling costs.
Learn moreRetrofit insulation upgrades existing structures for improved comfort without major renovation.
Learn moreServing these cities and communities.
Call us or request a free written estimate online. We serve Morgan Hill and the surrounding Santa Clara Valley communities.