Insulation Services
Insulation Installation in Foster City, CA
Blown-In Cellulose · Fiberglass Batt · Attic & Crawl Space
After insulation removal or when installing fresh insulation in an uninsulated or under-insulated space, proper installation restores thermal performance and can incorporate pest-resistant products. 101 Exterminators installs blown-in cellulose and fiberglass, as well as batt insulation for crawl space floor installations. Serving Foster City and surrounding San Mateo County.
Warning Signs
Signs You Need Insulation Install Service in Foster City
Blown-in cellulose or fiberglass installation to achieve target R-value (typically R-38 to R-60 for California attics). Crawl space joist bay fiberglass batt installation for under-floor insulation. We work to California Title 24 standards and can provide documentation for permit purposes when required.
Attic insulation below R-19 or compressed to less than 4 inches — significant energy loss
Recent insulation removal that needs replacement
Home failing energy audit or experiencing higher-than-expected heating/cooling costs
Crawl space floor insulation missing or falling from between joists
How It Works
Our Insulation Install Process in Foster City
Every job follows the same methodical approach — no shortcuts, no guesswork. Here is what to expect when you work with us in Foster City.
Existing Conditions Assessment
We measure current insulation depth, note any areas requiring air sealing before installation, and confirm that the attic is rodent-free before new insulation goes in.
Air Sealing (As Needed)
Gaps around recessed lights, plumbing penetrations, HVAC ductwork, and top plates are sealed before insulation is blown in to maximize thermal performance.
Insulation Installation
Machine-blown cellulose or fiberglass is distributed to uniform depth and density across the attic floor or specified area. Depth gauges are placed and photographed for documentation.
R-Value Confirmation
Installed depth is documented and final R-value confirmed. For permit applications, we provide the necessary documentation of materials and installation specs.
Why 101 Exterminators
Insulation Install You Can Count On in Foster City
Title 24 Compliance
We install to California energy standards with documentation for permit and utility rebate purposes.
Pest-Resistant Options
Borate-treated cellulose provides both thermal performance and inherent pest resistance — termites and cockroaches avoid borate-treated materials.
Common Questions
Insulation Installation FAQs for Foster City
What R-value do I need for my California attic?
California Title 24 requires R-38 minimum for new construction in most climate zones. For existing homes in Monterey and Santa Cruz counties (Climate Zone 3), upgrading to R-38 or R-49 is recommended. For inland areas like Hollister and South Santa Clara County (Climate Zone 5), R-49 or higher maximizes energy savings due to larger temperature swings.
Insulation Installation · Foster City
Free Insulation Install Inspection in Foster City
CA licensed and insured. Written estimate before any work begins. Same-day response available for urgent situations in Foster City.