Spray foam vs blown-in for 1970s Sand Springs home?

Quick facts	Answer
Cost range	Blown-in about $1,450–$3,800; spray foam about $3,350–$8,550 in Tulsa
Time	Spray foam attic job about 14.8 labor hours (Tulsa typical)
Who's qualified	Ask for proof of insurance, relevant certifications (e.g., ASE for auto repair), and any license your state or city requires.

When does spray foam make more sense for an older home?

Spray foam makes more sense when you need air sealing, roof-deck encapsulation, moisture control, or a conditioned-close attic. Blown-in is usually the better value when the attic is vented and the goal is to reach R-38 economically. Air sealing penetrations through the attic floor is critical before adding any insulation.

What insulation level does Oklahoma code target?

A 2025 Oklahoma energy-code summary lists attic/ceiling insulation targets of R-38 and R-49. Insulation coverage should be to the full height needed to meet or exceed the minimum value for the climate zone.

Is there a rebate for attic insulation in the Tulsa area?

OG&E advertises attic insulation rebates of up to $500 for qualifying projects. The existing insulation must be under 8 inches or R-23, and the finished depth must be at least 13 inches or R-38. Rebate funds are first-come, first-served, and the application and valid invoice must arrive by December 1 of the program year.

What to do next

Check the attic: confirm it is vented and inspect for gaps around penetrations through the attic floor before any insulation is added.
Check OG&E rebate availability before hiring, since funds are first-come, first-served.
Ask the pro for proof of insurance and a written quote that lists product, thickness and installed R-value.
For spray foam, confirm the installer's certificate lists the foam thickness and installed R-value, as Oklahoma code requires.
Call (918) 727-7715 or email [email protected] for a free quote from an independent, insured spray foam insulation contractor.

Tulsa Foam Pros is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.

Quick answers

Which insulation type is better for stopping drafts in old homes?

Spray foam is better for stopping drafts because it air seals gaps as it expands. Blown-in insulation reduces heat transfer but does less to seal air leaks.

What is the cost difference per square foot in Sand Springs?

Tulsa-area guides list blown-in fiberglass at about $1,450–$3,800 and spray foam at about $3,350–$8,550 for attics. Ask the pro for a per-square-foot figure in your written quote.

Do I need to remove old insulation before adding spray foam?

Rebates apply only if existing attic insulation is under 8 inches or R-23. Ask the pro whether old insulation must be removed for your specific attic.

How long does it take to see energy bill savings?

Savings depend on your home and usage, so the timing varies. Insulation and air sealing may pay back through lower bills and utility rebates over time.