Is $400 to add R13 fiberglass batts to basement walls a fair price?

Add insulation batts over the existing builder-installed insulation blanket on the exterior walls of the unfinished basement (~900 sqft). - Scope: Exterior walls only (~120 linear feet) - Work: Add insulation batts over existing blanket - Existing Condition: Top half has original builder-installed insulation blanket - Goal: Qualify for Ontario energy rebate (R14 above)

This quote is for adding insulation to both the attic and basement. - Attic Insulation: Cellulose blown-in insulation (1137 sqft) to supplement existing insulation. - Basement Insulation: R-19 faced fiberglass insulation on the ceiling (1269 sqft) to address current thin insulation with large gaps.

This quote is for installing additional insulation in the attic and basement based on a home energy audit recommendation. - Attic Insulation: Blown-in cellulose insulation (1137 sqft) to supplement existing R30 insulation, bringing it to R38. - Basement Insulation: R-19 faced fiberglass insulation (1269 sqft) installed on the ceiling, addressing thin existing insulation with large gaps.