Spray foam insulation in Delaware
What Delaware homes mean for spray foam insulation
Delaware's pre-1950 stock near Ohio Wesleyan includes balloon-frame houses with genuinely empty wall cavities, where drill-and-fill closed-cell foam preserves the original exterior siding and trim rather than requiring a tear-off. The newer subdivisions ringing downtown are builder-grade fiberglass batt construction with OSB sheathing, consistent with whatever decade's energy code applied when they went in. Rim joists across both eras are a near-universal gap, since neither the older frame construction nor the earlier subdivision code required insulating them.
Delaware sits directly on the Olentangy River, with Delaware Dam and Delaware Lake just north of downtown holding back the river's upper watershed.
Delaware housing profile
- County
- Delaware, OH
- Housing era
- A mix of housing eras
- State
- OH
Historic downtown Delaware plus newer subdivisions. Pre-war homes near OWU have empty wall cavities; drill-and-fill closed-cell foam preserves the architectural character.
Delaware's housing character: a genuine pre-1950 college-town downtown surrounded by newer exurban subdivisions. That shapes how we scope spray foam insulation here. All of our 7 specialty lines are available throughout Delaware and the surrounding Columbus metro. Click any service for full details, typical pricing, and process.
- Attic Spray Foam Insulation in DelawareRoof-deck and attic-floor foam, the highest-ROI insulation upgrade for Columbus homes.Typical: $2,800-$8,500
- Wall Cavity Spray Foam in DelawareRetrofit and new-construction wall foam. Air seal + R-value in one step.Typical: $3,500-$15,000
- Crawl Space Spray Foam in DelawareClosed-cell foam encapsulation. Moisture barrier + insulation + air seal.Typical: $2,500-$7,000
- Closed-Cell Spray Foam in DelawareR-7 per inch. Vapor barrier. Structural rigidity. The premium choice.Typical: $1.50-$2.50 per board foot
- Open-Cell Spray Foam in DelawareR-3.7 per inch. Vapor permeable. Better sound dampening. Lower cost.Typical: $0.50-$1.20 per board foot
- Metal Building Spray Foam in DelawarePole barns, workshops, garages. Eliminates condensation and sound.Typical: $3,500-$25,000
- Rim Joist & Band Joist Foam in DelawareThe single highest-ROI air-sealing project in any Columbus home.Typical: $800-$2,200