Soffit Installation & Repair in St. Louis
Ventilation where your roof needs it most.
Soffit closes off the underside of your roof's overhang and feeds fresh air into the attic. Rotted, sagging, or blocked soffit traps heat and moisture — and invites pests. ECI repairs and replaces soffit as part of a healthy roof system.
Know the warning signs
What Damage Looks Like
Holes or chewed edges
Squirrels, raccoons, bats and birds exploit weak soffit — especially near mature trees in older neighborhoods.
Sagging or peeling panels
Usually caused by water from failing gutters or drip edge soaking the wood behind them.
Water stains & mold
Dark streaks at the overhang signal ongoing moisture that can spread into rafters.
Hot attic, ice dams
Blocked or solid soffit starves the attic of airflow, raising cooling bills and shortening shingle life.
St. Louis pricing guide
What Does Soffit Work Cost in St. Louis?
| Project | Typical range | Notes |
|---|---|---|
| Soffit repair (one section) | $300 – $1,200 | Includes rotted wood replacement |
| Vinyl soffit, installed | $8 – $15 / linear ft | Vented or solid panels |
| Aluminum soffit, installed | $10 – $20 / linear ft | Rigid, long-lasting, won't warp |
| Typical full-home soffit | $1,800 – $5,000 | Often bundled with fascia and gutters |
General St. Louis-area ranges for planning only — not a quote. Your price depends on measurements, material, access, and what we find behind the surface. ECI provides a written estimate after a free on-site evaluation.
What drives the price
- Total linear footage of eaves and overhang depth
- Amount of rotted wood to remove
- Vented vs. solid panels and attic ventilation needs
- Pest damage and exclusion work
- Two-story or steep-access eaves
Material options
- Vented vinyl: The most common option — feeds intake air to ridge vents and never needs paint.
- Aluminum: Stiffer panels that stay flat across wide overhangs and resist pests.
- Wood (repair only): Used to restore historic homes; requires painting and regular upkeep.
Built for St. Louis Weather
Many St. Louis homes built before the 1980s still have painted plywood soffit. Combined with tall oaks and clogged gutters in neighborhoods like Kirkwood and Webster Groves, that wood rots and becomes an entry point for wildlife.
Our scope process
We evaluate the soffit, fascia, and attic ventilation together — because they work as one system. The scope covers panel material, vented versus solid sections, and any wood repair needed before new soffit goes up.
When to call ECI
- Rotted, sagging, or peeling soffit panels
- Wasps, birds, or squirrels entering at the eaves
- Poor attic ventilation and high summer cooling bills
- Water stains or mold near the roof overhang
Serving the St. Louis region
St. Louis City · Kirkwood · Webster Groves · Chesterfield · Ballwin · Ellisville · Wildwood · Creve Coeur · Florissant · Arnold · St. Charles · O'Fallon · Wentzville · Festus — plus Kansas City and Mid-Missouri.
Soffit Questions St. Louis Homeowners Ask
How much does soffit replacement cost in St. Louis?
A full-home soffit replacement commonly runs $1,800 to $5,000 depending on length, material, and rot repair. Small repairs can start around $300.
Does soffit affect my roof?
Yes. Soffit vents are the intake half of attic ventilation. Without airflow, heat and moisture build up and shingles age faster.
Can you fix soffit damaged by animals?
We replace damaged sections and close the openings with new panels. If animals are still inside, a wildlife removal service should clear them first.