Homeowners across the country ask the same question when they feel cold floors or notice rising utility bills: how much to insulate a crawl space? At CountBricks, we combine decades of residential construction know-how with real-time AI estimating to give you a clear, data-backed cost range in minutes. Below, we break down the variables that drive price, typical figures for the Los Angeles area, and the smartest way to lock in an accurate bid today.
The square footage under your home and the ease of entry set the baseline. A tight 18-inch clearance takes longer to prep than a spacious 36-inch crawl, so labor hours rise accordingly.
• Fiberglass batts: Budget-friendly, quick to install, moderate R-value
• Rigid foam board: Higher material cost, excellent moisture resistance
• Closed-cell spray foam: Top performer for air sealing and R-value, highest upfront price
Moisture, mold or damaged joists must be remediated before insulation can be installed. This remediation can add anywhere from 15 % to 40 % to the total project budget.
Adding a 10-mil polyethylene vapor barrier and sealing rim joists can improve efficiency but increases both material and labor line items.
Los Angeles residential crews generally bill between $1.75 and $3.25 per square foot for insulation labor. Remote or higher-cost metro areas may trend higher.
CountBricks’ real-time estimate library—fed by thousands of local projects—shows these current ballpark figures:
• Fiberglass batts: $2.50 – $3.75 per sq ft installed
• Rigid foam board: $4.25 – $6.00 per sq ft installed
• Closed-cell spray foam: $7.00 – $9.50 per sq ft installed
Example: An 800 sq ft crawl space insulated with rigid foam would typically range from $3,400 to $4,800, including vapor barrier and basic air sealing. Your exact total depends on access, prep and scope.
According to CountBricks performance tracking, clients see 10 %–18 % annual energy savings after upgrading an uninsulated crawl. Beyond lower bills, insulation extends HVAC lifespan and boosts indoor comfort—critical selling points if you plan to list the home.
Traditional estimating can take days of site visits, spreadsheet edits and manual material look-ups. CountBricks compresses that timeline into a single voice conversation.
1. Talk with your phone: Describe the crawl space, dimensions and goals.
2. AI cost engine: Our software pulls live material pricing and regional labor rates.
3. Instant breakdown: You receive a detailed line-item estimate and scope—all within minutes.
4. Blueprint takeoff option: Upload plans to CountBricks.com/blueprint-takeoff for laser-accurate quantities.
• Less admin time: Voice capture replaces manual data entry.
• Up-to-date pricing: Material costs update daily, so bids stay competitive.
• Professional documents: One click exports branded quotes and invoices.
• Seamless revisions: Adjust insulation type or thickness and watch totals recalculate instantly.
DIY fiberglass can save on labor, but consider these realities:
• Safety gear required for confined spaces
• Risk of improper vapor barrier overlap leading to moisture issues
• No manufacturer warranty if specs are missed
• Higher learning curve for spray foam or rigid board fastening
Hiring a licensed contractor through CountBricks.com/services ensures code compliance, correct R-value selection and cleanup.
1. Capture photos or blueprints and upload to CountBricks.com/portfolio.
2. Start a voice session and outline the current crawl conditions.
3. Review the AI-generated estimate—materials, tasks, labor and timeline.
4. Approve the scope or tweak specs (thicker foam, added vapor barrier).
5. Receive digital quote documents ready to share with stakeholders.
6. Schedule your preferred CountBricks-verified installer and track job progress online.
An average 800 sq ft crawl usually completes in one to two days, assuming no major repairs.
When headroom is tight or moisture is persistent, closed-cell spray foam delivers the best long-term payoff by combining insulation and air sealing in one step.
CountBricks recommends R-19 minimum at floor joists and R-10 rigid foam on perimeter walls for most climate zones in the region.
If you’ve been searching “how much to insulate a crawl space,” you now have a clear starting range. For a figure tailored to your home, launch a free voice estimate at CountBricks.com today and experience the fastest way to price any residential project.
A 1940s Venice Beach bungalow sat just 14 inches above damp sand, leaving the owners with chilly hardwood floors and annual termite treatments. They wanted answers to the classic query—how much to insulate a crawl space—and they wanted them fast.
During a lunch break, the homeowner opened the CountBricks app and recorded a 3-minute description: 620 sq ft crawl, 60 % accessibility, mild moisture, no standing water. The AI engine mapped the data to current Los Angeles labor tables and priced out three options.
• Fiberglass batt package: $1,950 installed
• Rigid foam upgrade with vapor barrier: $3,420 installed
• Closed-cell spray foam plus full encapsulation: $5,680 installed
After reviewing energy-savings projections generated by CountBricks analytics, the homeowners selected the rigid foam package. It promised a seven-year payback versus eleven years for fiberglass.
1. Digital approval triggered an automated material order.
2. A CountBricks-verified crew arrived two days later and completed prep, foam board install and 10-mil vapor barrier in 11 hours.
3. The client followed progress through real-time photo updates in the CountBricks dashboard.
Three months post-install, smart thermostat logs showed a 14 % reduction in HVAC runtime. Indoor humidity dropped 8 %, and the floor felt noticeably warmer—exactly in line with the AI forecast.
• Prioritize air sealing at rim joists before laying batts or foam to prevent wind-washing.
• Select mechanical fasteners rated for coastal environments to avoid corrosion.
• Always integrate a continuous vapor barrier when groundwater sits within 12 inches of grade.
If the Venice success story sounds like your dream outcome, start your own project assessment at CountBricks.com/consultation. One quick conversation is all it takes to unlock a fixed-price proposal tailored to your crawl space—no spreadsheets, no guesswork, just results.
