Looking for a spray foam installer in Winston-Salem, NC? Describe your project once and up to three spray foam installers who work in Winston-Salem and Forsyth County get back to you with a quote. It's free and there is no obligation.
Winston-Salem is home to about 255,769 people (2024 Census Bureau estimate), a growing community (+2.5% since 2020). With 1,913 people per sq mi, it is a suburban area. Hot summers, cold winters and leaky older homes make air sealing a priority here.
Winston-Salem at a glance
- Population (Census Bureau estimate, 2024)
- 255,769 (+2.5% since 2020)
- Rank in North Carolina
- 5th of 549 cities and towns
- Land area
- 134 sq mi
- Population density
- 1,913 people per sq mi (suburban)
- Type
- City (Winston-Salem city)
- Main county
- Forsyth County
What to check before hiring in Winston-Salem
- Training: ask about applicator training and safety practices.
- Code: in North Carolina, the energy and residential codes set R-values and barrier requirements.
- Rebates: utilities sometimes rebate insulation upgrades.
- Price drivers: area, foam type, thickness and prep.
Useful official resources
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U.S. Department of Energy: insulation
Official information and guidance.
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Spray Polyurethane Foam Alliance
Official information and guidance.
Services available in Winston-Salem
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Attic spray foam
Spray foam on the roof deck or attic floor, often to create a conditioned attic.
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Walls, rim joists and crawl spaces
Spray foam in open walls, rim joists, basements or crawl spaces.
Frequently asked questions in Winston-Salem
How much does spray foam cost in Winston-Salem, NC?
It depends on area, foam type and thickness. Describe your project: installers who serve Winston-Salem reply with a quote.
How long does installation take?
Often a day for a typical attic, plus curing time.
Can foam go over old insulation?
Usually old material is removed first; ask the installer.
Which spray foam installers will contact me?
Up to three independent spray foam installers who serve Winston-Salem and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.