Spray polyurethane foam (SPF) is one of the most effective insulation materials available, combining insulation and air sealing into a single application. When sprayed onto a surface, it expands to fill every crack, gap, and irregular cavity, creating an airtight thermal envelope that traditional batts and blown-in products simply cannot match. Best Hawthorne Attic Insulation offers both open-cell and closed-cell spray foam applications tailored to the specific needs of Hawthorne homes and businesses.
Closed-cell spray foam delivers a high R-value of approximately R-6.5 per inch and also acts as a vapor barrier, making it ideal for unvented attic assemblies, rim joists, crawl space walls, and exterior-facing applications where moisture control is critical. Open-cell spray foam offers a lower cost per square foot and excellent sound attenuation, making it popular for interior wall cavities and vented attic applications where vapor permeability is desired. Our team assesses each project individually and recommends the appropriate foam type, thickness, and application method.
Spray foam installation requires proper personal protective equipment and adequate ventilation during and after application, and our technicians are trained in safe application procedures and cure times. We ensure the space is properly ventilated and fully cured before handing it back to the homeowner. Spray foam is a premium investment that pays dividends in energy savings, structural rigidity, and long-term durability — it does not sag, settle, or absorb moisture like many conventional insulation products.
- Licensed and fully insured technicians
- Free estimates and upfront pricing
- Same-day and emergency service available
- Commercial and residential expertise
- Satisfaction guaranteed on every job
- Locally owned — we know your area