Attic Insulation in Hollister, California

The attic is where the house loses the most energy. The heat rises in the summer and the warmth escapes in the winter, and the insulation is the barrier that stops it. Attic insulation in Hollister means the layer that keeps the house comfortable and the bills lower.

Signs Your Hollister Home Needs Better Insulation

• Hot rooms on the top floor — the air is leaking through the ceiling
• High cooling and heating bills — the energy is escaping through the attic
• Uneven temperatures between the rooms — the insulation is not consistent
• Condensation in the attic — the warm air is meeting the cold deck
• The attic insulation is old or thin — the original insulation has settled

How We Insulate Attics in Hollister

1. Inspect the attic — check the current insulation, the air leaks, and the vents
2. Seal the air leaks — caulk the gaps around the pipes and the wires
3. Install the baffles — keep the soffit vents clear of the new insulation
4. Blow in the insulation — the fiberglass or the cellulose, to the target R-value
5. Verify the coverage — check the depth and the evenness

Attic Insulation Costs in Hollister

Service	Typical range	What’s included	Warranty
Blown-in fiberglass	$1,200 – $3,000	R-38 to R-60, full attic	10 years
Blown-in cellulose	$1,000 – $2,600	R-38 to R-60, treated	10 years
Spray foam insulation	$2,500 – $5,000	Closed-cell, air seal + insulation	20 years
Attic air seal	$500 – $1,500	Seal the gaps and the penetrations	5 years

Expert tip: in Hollister, the air seal is the first step. The insulation is only as good as the seal below it, and the gaps around the pipes and the wires leak the air that the insulation is meant to stop.

Serving Hollister and Nearby Areas

We insulate attics across San Benito County — Hollister, Gilroy, Salinas, Morgan Hill, and the surrounding valley communities.

FAQ

Content above. FAQs are in frontmatter.

Start with a free attic insulation assessment. Call us today for local crews.