5 calculators in this category
- Home Improvement ROI CalculatorCost-versus-value recoup analysisNo ordinary renovation returns more at resale than it costs. What a good one does is give a large part of the money back, so…
- Energy Upgrade Payback CalculatorDiscounted cash flow; simple and discounted paybackSimple payback — cost divided by annual saving — is the number every contractor quotes and the one that misleads most often. It…
- Attic Insulation Upgrade Payback CalculatorASHRAE degree-day method; IECC ceiling R-valuesHeat leaves a ceiling in direct proportion to area and temperature difference, and in inverse proportion to R-value. That last…
- Window Replacement Payback CalculatorNFRC 100 U-factor ratingsEnter the glass area you are replacing, the U-factor on the old windows and the one printed on the NFRC label of the quoted…
- Renovation Equity Gain CalculatorAfter-repair value (ARV) equity identityA renovation can raise the value of your house and still leave you worse off. This calculator separates the two: it shows the…
Which one do you need?
- Home Improvement ROI Calculator
- Compare project cost against the value it adds at resale, allowing for the recoup rate you supply and the value an improvement loses each year until you sell.
- Energy Upgrade Payback Calculator
- Work out simple and discounted payback for any efficiency upgrade from its cost, rebates, annual bill saving, energy price escalation and your discount rate.
- Attic Insulation Upgrade Payback Calculator
- Turn an attic R-value upgrade into heat saved, dollars saved and a payback period, using heating degree days, your fuel price and your system efficiency.
- Window Replacement Payback Calculator
- Work out what lower-U-factor windows save on your heating bill each year, and how many years the installed cost takes to pay itself back.
- Renovation Equity Gain Calculator
- See the equity a renovation actually creates: after-renovation value against mortgage balance and money spent, with loan-to-value and financing cost.
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Where this work overlaps other trades and disciplines.