Attic Insulation ROI Calculator
Find out how fast attic insulation pays for itself in Tulsa. Enter your attic size, current insulation depth, and the insulation type you're adding — the calculator estimates your recommended R-value for Oklahoma, inches to add, installed cost, annual energy savings, and simple payback. Built on DOE climate-zone guidance and current Tulsa-area installed pricing.
Estimate Your Attic Insulation ROI
Adjust the inputs — your recommended R-value, cost, savings, and payback update instantly. Built for Oklahoma's climate (DOE climate zone 3, R-38 to R-60).
How It Works — 3 Simple Steps
Measure Your Attic
Check the depth of your existing insulation with a tape measure — or skip it. We'll measure for free during a quick attic assessment. Most Tulsa homes built before 2000 are under-insulated by today's R-38 to R-60 standard.
Get a Free Quote
Call (918) 734-4444 or request a quote online. We'll recommend blown fiberglass, cellulose, or spray foam based on your attic and budget — no pressure, no obligation.
Save Every Month
Our crew installs the insulation in a day with full cleanup and proper ventilation protection. Most homeowners see 10–20% lower heating and cooling bills — and a simple payback of just 2–6 years. Get a free roof estimate from Proof Construction. Explore all roofing solutions from Proof Construction. Run the numbers with the ROI calculator.
Frequently Asked Questions
Quick Answers
How much does attic insulation cost in Tulsa? Installed prices in the Tulsa area typically run $0.05–$0.08 per square foot per inch for blown fiberglass, $0.07–$0.10 for cellulose, and $1.00–$1.40 for closed-cell spray foam. A typical 2,200 sq ft attic topped up to R-49 with cellulose usually lands between $1,600 and $2,500 installed. Use the calculator above for your home, then call (918) 734-4444 for an exact quote.
How much can I really save on energy bills with attic insulation? Adding insulation to an under-insulated attic typically cuts heating and cooling costs by 10–20%. The U.S. Department of Energy estimates most homes can save up to 15% on heating and cooling costs, and savings are higher for severely under-insulated attics. This calculator estimates your annual savings from your attic size and the size of the upgrade. Many Tulsa homeowners see a simple payback of 2–6 years.
Is spray foam worth the extra cost? Closed-cell spray foam delivers roughly 6.0 R-value per inch — nearly double fiberglass or cellulose — and seals air leaks at the same time, which is often where most energy loss happens. It costs more per square foot, but it can be the better value in unconditioned attics with ductwork. Use the calculator to compare payback, or ask us for a side-by-side quote.
How is the payback period calculated? Simple payback is the installed cost of the insulation divided by the estimated annual energy savings. For example, a $2,000 insulation job that saves $500 a year pays for itself in 4 years. This calculator uses installed Tulsa pricing and a 10–20% savings band based on your attic size and how much insulation you are adding.
What R-value does my attic need in Oklahoma? Oklahoma falls in DOE climate zone 3, where the recommended attic insulation range is R-38 to R-60. Homes with little or no existing insulation should target R-60; homes that already have some insulation can typically top up to R-38 or R-49. This calculator estimates your current R-value from the depth of your existing insulation and recommends a target for the Tulsa area.
