Cost to Whole-House Dehumidifier Installation in San Antonio, TX (2026)
If you’re budgeting a whole-house dehumidifier installation in San Antonio, most projects run $1,588-$3,922, 7% below the $2,800 national average. What moves that number most is usually one thing: Unit Capacity (Pints per Day). On its own it can swing the cost by $400 - $1,500, so that’s the decision to slow down on before you sweat the smaller stuff.
Easiest place to save: Fix moisture sources first - sealing basement cracks ($200-$500) and improving grading may reduce your humidity enough to downsize the dehumidifier by one capacity tier, saving $400-$800
In the Southeast (where San Antonio sits): Highest demand region, competitive pricing, many experienced installers.
$1,588-$3,922 in San Antonio
7% below the national average · 0.93x cost multiplier
Expect to pay $1,588-$3,922 for a whole-house dehumidifier installation 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 |
|---|---|---|---|
| Materials | $756 | $1,418 | $2,646 |
| Labor | $457 | $822 | $1,370 |
| Permits | $0 | $0 | $95 |
| Total | $1,213-7% vs. national avg | $2,240-7% vs. national avg | $4,300-7% vs. national avg |
Budget
Basic 70-pint whole-house dehumidifier tied into existing ductwork with gravity drain
Mid-Range
90-pint ducted dehumidifier with dedicated return, condensate pump, and humidistat controls
Premium
High-capacity 130+ pint commercial-grade unit with dedicated ductwork, smart controls, and whole-house coverage for 3,000+ sq ft
Material Options
Material prices below are national averages; availability in San Antonio may shift costs slightly.
| Material | Cost/Unit | Best For |
|---|---|---|
| Standard Ducted Dehumidifier (70 pint) | $800-$1,200 | Average-sized homes in moderate humidity areasAffordable, handles most homes, widely available, easy to service |
| High-Capacity Ducted (90-100 pint) | $1,200-$1,800 | Homes 2,500-3,500 sq ft or in high-humidity regions like the Gulf CoastHandles larger homes, better energy efficiency ratings, quieter operation |
| Commercial-Grade (130+ pint) | $2,000-$3,500 | Large homes, finished basements with persistent moisture, or coastal propertiesHandles extreme humidity, covers 3,000+ sq ft, longest warranties |
| Ventilating Dehumidifier | $1,500-$2,500 | Tight new-construction homes that need both dehumidification and fresh air exchangeBrings in fresh outdoor air while dehumidifying, improves IAQ, meets ventilation codes |
Other Projects in San Antonio
San Antonio Estimate
Typical Range
$1,588-$3,922
vs. National Average
7% below national
Cost Multiplier
0.93x
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 →