Blown-In Insulation in Dublin

More than 65 Years of Combined Experience Behind Your Dublin Insulation Project

At Crawlspace Clean, we install and replace blown-in insulation in attics, crawl spaces, and walls across Dublin and the surrounding East Bay. Blown-in insulation is loose-fill material installed with a blowing machine and hose, which lets it fill irregular spaces and gaps that batt insulation often can’t cover evenly. We’ve worked with homeowners throughout the area on attic and crawl space projects ranging from straightforward insulation additions to full removal and replacement after moisture damage or rodent activity.

Before recommending any insulation scope, we evaluate existing conditions in the space:

• Current insulation depth and condition
• Air leakage points
• Moisture levels
• Ventilation
• Access

That assessment determines whether a new layer can be added over existing material or whether removal comes first. Contaminated, compressed, or wet insulation may need to be removed before new material goes in. Otherwise, contamination or moisture damage may remain hidden beneath the new insulation.

Call (925) 394-4963 to schedule your free estimate and learn what your insulation project may require.

Our Blown-In Insulation Services in Dublin

Our blown-in insulation service begins with the condition of the entire space, not insulation depth alone.

Based on that assessment, your project may include:

• Thorough assessment: We inspect attics, crawl spaces, and walls for existing insulation, moisture, airflow, and access conditions.
• Material selection: We discuss cellulose and fiberglass options based on your space, project goals, and any applicable California Title 24 requirements.
• Professional installation: Our crew installs insulation for the targeted R-value and even coverage, along with any approved air-sealing work included in the scope.
• Moisture and ventilation work: When the property assessment supports it, we can pair insulation with vapor barriers, moisture solutions, or ventilation improvements.
• Cleanup and warranty: We remove project debris, dispose of materials properly, and explain the renewable annual warranty covering our work.

Loose-fill insulation can reach tight corners, irregular framing, and other areas that are difficult to cover evenly with standard batts. This makes it practical for both older properties and newer homes with limited attic access.

Attic Ventilation & Insulation Clearance in Dublin

Dublin residential attic guidance states that insulation must not block airflow at eave or cornice vents and identifies a minimum one-inch clearance between insulation and roof sheathing at those locations. Depending on the project, California energy requirements may also affect insulation depth, air sealing, ventilation, and documentation. We account for the applicable requirements when planning the installation scope.