Cost to Energy Audit and Weatherization in San Antonio, TX (2026)
If you’re budgeting a energy audit and weatherization in San Antonio, most projects run $278-$7,410, 7% below the $2,800 national average. What moves that number most is usually one thing: Audit Only vs. Audit Plus Weatherization. On its own it can swing the cost by $300 - $10,000, so that’s the decision to slow down on before you sweat the smaller stuff.
Easiest place to save: Utility rebates often cover 25-75% of audit and basic weatherization costs - call your utility company before spending anything. Many offer free or $50 subsidized audits.
In the Southeast (where San Antonio sits): Lower labor costs keep audit and weatherization prices below the national average. Cooling-dominated climate means air sealing and attic insulation reduce summer AC bills significantly. Humidity management is important - proper vapor barriers matter more here than in dry climates.
$278-$7,410 in San Antonio
7% below the national average · 0.93x cost multiplier
Expect to pay $278-$7,410 for a energy audit and weatherization in San Antonio, about 7% below the national benchmark. The Southeast region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at San Antonio prices.
Cost Breakdown in San Antonio
| Line Item | Low | Mid | High |
|---|---|---|---|
| Cost per audit/service | $139 | $2594 | $648 |
| Materials | $47 | $756 | $3,780 |
| Labor | $228 | $1,096 | $5,480 |
| Permits | $0 | $0 | $284 |
| Total | $275-8% vs. national avg | $1,852-7% vs. national avg | $9,544-7% vs. national avg |
Budget
Professional energy audit only, blower door test, thermal imaging, written report
Mid-Range
Audit plus basic weatherization: air sealing, insulation top-off, smart thermostat
Premium
Whole-house weatherization: full air sealing, comprehensive insulation, HVAC tune-up, windows
Material Options
Material prices below are national averages; availability in San Antonio may shift costs slightly.
| Material | Cost/Unit | Best For |
|---|---|---|
| Professional Energy Audit (Blower Door + Thermal) | $150 - $700 | Every homeowner as the first step before spending on weatherizationIdentifies exactly where your home loses energy, prioritizes repairs by ROI, required for most rebate programs |
| DIY Energy Audit (Limited) | $0 - $50 | Rental properties where professional audit is not justified, basic awareness onlyFree, identifies obvious issues (drafts, visible insulation gaps) |
| Air Sealing (Attic and Basement) | $300 - $1,500 | Almost every home - consistently the top audit recommendationHighest ROI of any weatherization measure, 3-5 year payback, improves comfort year-round |
| Attic Insulation | $800 - $3,500 | Homes with less than R-30 in the attic - nearly all pre-2000 homesMajor heat loss reduction, qualifies for 30% IRA tax credit, often covered by utility rebates |
| Weatherstripping and Door Sweeps | $50 - $400 | Quick wins, visible drafts under doors and around windowsCheap, DIY-accessible, immediate comfort improvement, no permit needed |
Other Projects in San Antonio
San Antonio Estimate
Typical Range
$278-$7,410
vs. National Average
7% below national
Cost Multiplier
0.93x
Cost Per audit/service
$139-$648
This 0.93x estimate prices San Antonio labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.
See national average costs →