Air Sealing Services
Seal the gaps that let outside air bypass your insulation and drive up your cooling costs all summer.
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Serving Hollister, CA and surrounding areas. (831) 271-0020
Your walls are the largest surface area in your home. If they are not insulated, heat pours in all summer and escapes all winter - and your energy bill pays the price.
Wall insulation in Hollister works by slowing heat movement through your exterior walls - most jobs on a single-story home are completed in one day, with minimal disruption to your daily routine.
Your walls make up the largest surface area in your home, and in Hollister's hot inland valley summers, uninsulated walls absorb heat all day and release it into your living spaces at night. That cycle keeps your air conditioner running longer than it should. Wall insulation breaks it. If your home is older and has never had the walls assessed, pairing this work with air sealing services delivers the biggest improvement in comfort and energy costs.
Many Hollister homes built between the 1950s and 1980s were constructed with empty or nearly empty wall cavities by today's standards. If that sounds like your home, the good news is that retrofit blown-in insulation can be added without opening up your walls.
If your living room or bedrooms are noticeably hotter in the late afternoon than in the morning - even with the AC running - your walls are absorbing heat all day and releasing it inward. This is a classic sign of under-insulated exterior walls, and it happens routinely in Hollister's older homes during the valley's hot summers.
If your bill climbs sharply from June through September and your habits have not changed, your cooling system is compensating for heat coming through your walls. Hollister's inland heat is intense enough that even a modest improvement in wall insulation can produce a noticeable drop in how hard your air conditioner has to work.
On a hot summer day or a cold winter night, press your hand flat against an exterior wall. If it feels noticeably warmer or cooler than the air in the room, the wall has little to no insulation. Well-insulated walls feel close to room temperature regardless of what is happening outside.
Homes built in Hollister before modern energy codes took effect were often constructed with little or no wall insulation. If you have never had the walls assessed and your home is more than 30 years old, there is a reasonable chance the cavities are empty - especially in older neighborhoods near downtown Hollister.
We handle wall insulation for finished homes and open-stud renovation projects alike. For homes where the drywall is already in place, we use retrofit blown-in insulation - small holes are drilled into the siding or interior wall surface, insulation is blown into each cavity until it is full, and the holes are patched and finished cleanly. This is the most common approach in Hollister's older neighborhoods and causes far less disruption than homeowners expect. We always pair this assessment with a review of your blown-in insulation options so you understand exactly which method suits your walls.
For renovation projects where the walls are already open, we install batt insulation cut and fitted between studs, which is faster and lower-cost than retrofit work. Either way, we assess whether air sealing services should be done at the same time - because insulating without sealing air leaks leaves real performance on the table. We explain PG&E rebate eligibility before work starts, not after.
Best for homes with finished walls where you want to add insulation without opening up the drywall or siding.
Ideal for homeowners doing a renovation or remodel where wall framing is already exposed and accessible.
The right choice for older Hollister homes where air leaks and missing insulation are both reducing comfort and driving up energy costs.
For homeowners planning a remodel who want to know what insulation work should be done before walls are closed up again.
Hollister sits in San Benito County's inland valley, where summer temperatures regularly climb into the 90s and occasionally past 100 degrees. Walls that lack adequate insulation absorb that heat all day and release it into your home at night - meaning your air conditioner runs longer and your house never fully cools down. Unlike coastal cities nearby, Hollister does not get the afternoon marine layer to take the edge off. Your walls are working against you unless they are properly insulated, and PG&E bills in this region reflect it during peak summer months. Homeowners in Gilroy face similar inland heat conditions and benefit from the same wall insulation upgrades.
A significant portion of Hollister's housing stock dates from the 1950s through the 1980s - a period when wall insulation was minimal or nonexistent by today's standards. California's energy code (Title 24) applies to permitted renovation work, so if you are remodeling and opening walls, the insulation must meet current state standards regardless of when the house was built. San Benito County's seismic activity near the Calaveras Fault also means older wall insulation - especially fitted batts - can shift over time, reducing effectiveness without any visible sign. Our service area extends to homeowners in Morgan Hill who face the same combination of aging housing stock and summer heat pressure.
Reach out by phone or through the contact form and we will respond within one business day. We ask a few basic questions - your home's age, whether walls are finished, and what is prompting the call - so we arrive to the estimate prepared.
We walk your home's exterior and interior to assess wall types, access points, and any areas that need special attention. We may probe a small test area to confirm whether insulation is already present. This visit has no cost and no obligation.
You receive a written estimate covering scope, materials, and total cost before any work begins. If PG&E rebates apply to your project, we explain that at this point - not after installation. No surprise costs once the crew is in your walls.
The crew drills small access holes, blows insulation into each wall cavity until it is full, then patches and finishes all holes. Most single-story jobs finish in one day. We walk you through the completed work before leaving and confirm all areas were filled.
Free written estimate. No pressure. We explain PG&E rebates before the job starts.
(831) 271-0020We work across Hollister and the surrounding region - not as a regional franchise dispatching crews from far away, but as a local contractor who has assessed walls in neighborhoods across this valley. That familiarity with local housing stock means fewer surprises on job day.
You agree to a total cost before any work begins. We do not quote a low number to get on your calendar and adjust it once we are already in your walls. The number in your written estimate is the number on your invoice.
We check whether air sealing should be part of the scope during every wall insulation assessment. If it should, we tell you - and explain why it matters for your specific home - rather than letting you pay for insulation that will underperform because air is still moving through gaps.
PG&E serves Hollister and offers rebates for qualifying insulation upgrades. We are familiar with their program requirements and can walk you through eligibility before work starts. For background on how insulation rebates work in California, the California Energy Commission outlines the state's building energy efficiency standards that govern qualifying improvements.
Every proof point above reflects how we run jobs in Hollister - not a marketing claim. A contractor who will not give you a written estimate upfront and explain rebates before the job is a contractor worth walking away from.
Seal the gaps that let outside air bypass your insulation and drive up your cooling costs all summer.
Learn moreLoose-fill insulation blown into wall and attic cavities - the right method for homes with finished walls and limited access.
Learn moreGet a free written estimate now and have your walls assessed before the next heat season arrives and your cooling costs climb again.