Mineral wool vs. fiberglass batts: when each one wins
Honest side-by-side comparison of mineral wool and fiberglass batt insulation. R-value, fire rating, sound performance, cost, and where each one earns its keep.
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Guides and answers from the truck.
Real insulation advice, written by the technicians who actually do the work. No fluff, no upsells.
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What insulation topics should San Diego homeowners know about?
Buying guides
Rebates & costs
Insulation rebates and tax credits in San Diego (2026)
Federal 25C, SDG&E, HERO, and PACE — what insulation rebates and credits actually apply in San Diego in 2026, and how to stack them.
Explainers
California Title 24 insulation requirements for San Diego homes
What Title 24 actually requires for attic, wall, and floor insulation in San Diego. Climate zones, R-value minimums, and when the rules apply.
Rebates & costs
Attic insulation removal cost in San Diego (2026)
What insulation removal actually costs in San Diego — by condition, by attic size, and by contamination type. Honest ranges, no upsell.
Explainers
Dense-pack wall insulation: how to insulate empty walls without ripping drywall
Dense-pack cellulose fills closed wall cavities through small drilled holes. How it works, what it costs, and when it's the right move for an older San Diego home.
Buying guides
Radiant barrier in East County: when foil actually pays back
When a radiant barrier earns its keep in El Cajon, Santee, and Lakeside attics — and when it doesn't. Real numbers, San Diego specifics.
Buying guides
Garage conversion insulation: ADU rules and what code actually requires
How to insulate a garage conversion or ADU in San Diego — wall, ceiling, and door specs that pass plan check, and how the costs really break down.
Explainers
Crawlspace insulation in San Diego: vapor, rim joists, and cold floors
How crawlspaces fail thermally in San Diego, what proper insulation looks like, and when full encapsulation is worth the upgrade.
Troubleshooting
Insulation removal: when you actually need it (and when you don't)
Old attic insulation isn't always trash. A clear guide to when removal is necessary, when topping up is fine, and how to tell the difference.
Explainers
Air-sealing first: why insulation alone won't do the job
Insulation slows heat. Air-sealing stops the leaks that move it. The order matters — and skipping the seal is why so many insulation upgrades disappoint.
Explainers
R-value, explained for San Diego homeowners
What R-value actually measures, what California Title 24 requires, and what number you should target for your San Diego attic, walls, and crawlspace.
Buying guides
Spray foam vs. cellulose in San Diego attics: which one wins?
Honest comparison of spray foam vs. blown-in cellulose for San Diego attics. Cost per R-value, where each one wins, and which assemblies make the choice obvious.
Buying guides
Attic insulation cost in San Diego (2026): real numbers, real homes
What attic insulation actually costs across San Diego County in 2026 — by R-value, by method, and by neighborhood. Real ranges, no salesy padding.
Serving San Diego County
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