Duct Services in Greater San Antonio

Air duct replacement cost varies by home and is confirmed after an on‑site duct evaluation. A technician will assess duct length, material, access in attics or crawlspaces, and whether sealing or repairs are better than full replacement. We offer free air duct evaluations with AC replacement quotes. We also use airflow and static pressure testing to diagnose performance. Leaking ducts can lose 30% of circulating air, so sealing may restore comfort without replacing every run. Service available in San Antonio and nearby areas.

• Quick next steps: Schedule a duct evaluation; review repair vs. replacement options with your tech.

Updated: 2025-12-10

Need help in San Antonio, TX? Call (210) 664-4358 or book online.

To seal a leaking air duct and improve HVAC efficiency, apply UL 181 foil tape or mastic to clean, dry, accessible joints and seams. Leaking ducts can lose 30% of the air circulating in your home, often at loose connections, boots, and plenum seams. Homeowners can save up to 30% on heating and cooling costs by eliminating air waste. Pro sealing with inspection and airflow testing verifies the whole system, not just what you can see. Elmer’s Home Services performs duct sealing and leak repair with free air duct evaluations. Our technicians regularly complete duct sealing and testing in homes around Garden Ridge.

• Clean and dry surfaces; brush on water-based mastic at joints.
• Press UL 181 foil tape over metal seams; seal tape edges.
• Secure flex-duct to collars with a drawband, then mastic; skip cloth “duct tape.”
• Call a pro for hidden leaks, damaged flex, or persistent uneven airflow.

If you suspect widespread leakage, schedule a professional duct evaluation and static pressure test before bigger fixes.

Updated: 2026-05-01

Need help in Garden Ridge, TX? Call (210) 489-1389 or book online. “We will only ever use Elmers!” — Colette N.