I have a company that blew in insulation in my home attic for a set price. I am now asking them for a quote to blow in insulation into my garage attic. They said their prices went up but would honor the price they gave me on doing the house.

This is what I have figured so far and hoped someone could confirm or correct my thoughts to make sure I am paying the same "price".

My home got 13 inches of insulation blown in. My garage will get 10 inches. Here is what I have come up with...

Home Blown in cost: $2,000

Square Feet: 1356

Inches of Insulation: 13

Home Contract

$2,000

/ 1356 sq ft

/ 13 Inches

= .113455 per inch - per sq ft

So to get the amount for the garage:

Square Feet: 2380

Inches of Insulation: 10

.113455 per inch - per sq ft

x 2380 sq ft

x 10 Inches

=$2,700.23

$2,700.23 for garage contract of 10 inches of blown insulation?

Thank you for any guidance you can provide.