
At some point in every residential project—new build or renovation—someone asks, “How much is batt insulation?” The question seems simple, yet the answer shifts with material choice, local labor rates, and project specifics. CountBricks brings clarity by combining real-time pricing feeds with voice-to-estimate AI, giving builders and homeowners an exact figure in minutes. Below we break down current batt insulation costs, hidden budget drivers, and ways to keep your project on track.
Batt insulation is a pre-cut fiberglass, mineral wool, or cotton blanket sized to fit wall, ceiling, and floor cavities. It remains the most requested thermal barrier in residential construction because it installs quickly and performs reliably when fitted correctly.
Across the United States, quality R-13 fiberglass batts currently run between $0.55 and $0.85 per square foot for materials alone. Labor to install in open framing averages another $0.60–$1.10 per square foot. Los Angeles, New York, and other hot markets trend 10–18 percent higher, while rural regions often fall below the midpoint.
CountBricks Real-Time Example: During a recent 2,400 sq ft single-family build in San Diego, our AI pulled live supplier feeds and produced a line-item showing $1.62 per square foot installed, including vapor retarder and disposal fees. The GC closed his bid in under five minutes and won the job.
• Insulation type (fiberglass vs. mineral wool vs. recycled cotton)
• Desired R-value and thickness
• Cavity accessibility (open studs vs. retrofit behind drywall)
• Local code add-ons such as fire-blocking or draft-stopping
• Waste factor from odd-shaped bays or extensive trimming
• Seasonality and fuel surcharges on freight
Many homeowners consider buying batts at a home center and installing themselves. While the math looks attractive, remember:
• Professional crews insulate a 2,000 sq ft home in one day—DIY often stretches to multiple weekends
• Misplaced or compressed batts lose up to 30 percent of their R-value, negating savings
• Contractors include ancillary tasks—air sealing, stapling vapor barriers, jobsite cleanup—that add thermal performance and safety
CountBricks clients frequently upload photos of partially removed drywall. Our AI takeoff tool highlights hard-to-reach cavities so you can instantly decide if pro help outweighs DIY effort.
1. Voice + Blueprint Intake: Speak room dimensions or upload PDFs to CountBricks.com/takeoff.
2. Live Material Feed: Our engine pings local distributors every 30 seconds for up-to-date batt pricing.
3. Task Library Match: Install labor rates pull from our verified residential crew database by ZIP code.
4. AI-Optimized Waste Factor: CountBricks applies geometry rules to trim your overage without risking shortages.
5. Instant Estimate & Invoice: A shareable PDF arrives ready for e-signature, complete with payment schedule.
• Spray foam: 2–3 times the installed price but adds air sealing
• Blown-in cellulose: Comparable cost for walls, slightly higher for attics, requires blower machine
• Rigid foam panels: Higher material cost, excels at continuous exterior insulation
Choosing batts often comes down to budget, speed, and future serviceability—qualities CountBricks quantifies in every estimate so you can justify the spec to homeowners or financiers.
Permit data shows LA County enforces Title 24 energy codes, pushing many projects to R-19 walls and R-38 ceilings. CountBricks updates those requirements automatically, preventing costly re-submittals.
Current LA Installed Range: $1.75–$2.35 per square foot for R-19 fiberglass wall batts. Mineral wool adds roughly $0.45 per square foot.
• Order to the nearest full-bale increment to leverage volume discounts.
• Use CountBricks’ crew scheduler to book insulation when framing inspection is complete—no standby charges.
• Combine batt install with air-sealing tasks in the same mobilization to reduce labor trips.
• Explore rebates: CountBricks auto-flags utility incentives in your estimate summary.
Is batt insulation safe?
Modern fiberglass is formaldehyde-free; CountBricks specifies low-VOC products by default.
How long does batt insulation last?
When kept dry, batts maintain performance for 50 plus years. Our maintenance notes in each estimate outline attic ventilation checks.
Can I mix insulation types?
Yes. Many CountBricks projects pair batt walls with blown-in attic blankets; our AI optimizes each assembly.
If you still wonder how much batt insulation costs for your exact square footage, try the CountBricks voice estimator now. You’ll receive a precise budget, installation timeline, and optional financing in the time it takes to walk your jobsite.
Visit CountBricks.com/services or request a live demo today.

A recent CountBricks project involved a 3,100 sq ft hillside residence in Santa Clarita. The architect specified R-21 mineral wool for the walls and R-38 fiberglass batts for the vaulted ceilings. Initial supplier quotes exceeded the owner’s budget by $4,800. Here’s how CountBricks realigned the numbers without sacrificing performance.
• Optimized Waste Factor: Our AI takeoff recalculated odd-angle roof bays, reducing required batts by 7 percent.
• Supplier Cross-Match: Live pricing feed located an in-stock mineral wool closeout 22 miles away, saving $0.28 per square foot.
• Labor Bundling: By scheduling air-sealing and insulation on the same day, crew mobilizations dropped from two to one, trimming labor hours by 11 percent.
• Instant Change-Order Approval: The GC generated a revised estimate through CountBricks.com/portfolio, obtained owner e-signature that afternoon, and kept framing on schedule.
The final installed cost landed at $1.84 per square foot—14 percent below the original budget, while still meeting California Title 24 requirements. The builder credited CountBricks’ real-time data and streamlined approvals for eliminating costly delays often hidden behind manual takeoffs.
When clients ask, “How much is batt insulation?” you can now reply with a data-driven number, a clear breakdown, and documented savings tactics. CountBricks transforms insulation from a vague allowance into a fixed, defensible line item.
• Upload blueprints early—CountBricks can lock material prices for 30 days.
• Leverage our rebate finder to offset high R-value upgrades.
• Use voice memos on-site to flag tight chase areas; the AI adjusts labor time automatically.
Want to replicate these savings? Head to CountBricks.com/consultation and book a 15-minute call. Accurate batt insulation pricing is just the beginning—let’s streamline your entire residential build from slab to shingles.