Is $1,362 to install aluminum load-bearing posts with vinyl sleeves a fair price?

This quote proposes a structural upgrade for the balcony deck. - Install 14-foot posts on footings - Remove the existing angled support system

Proposal to repair and replace degraded support posts for the back porch of a 100+ year old home. The existing concrete posts are degraded and need total replacement. The work includes replacing posts under a storage area and a powder room. Specific work items include: - **Frame - Post, 6x6, Conc Pad Machine Excavated Below Frost:** Install 6x6 posts up to 16' in length, machine excavated to below frost line on a concrete footing (2' x 2' x 8") with #4 re-bar grid. Footings are formed and positioned as drawn. - **Frame - Post, 6x6, Tr Pad on Grade / Floor:** Install 6x6 posts up to 10' in length on a foundation grade laminated treated wood footing pad, nested and leveled into concrete mix on grade or on top of the existing floor as required and positioned as drawn. Both installation types include nominal jacking to straighten the beam or structure being supported towards level or true; absolute level is not guaranteed. Additional fees may apply for more difficult lifts. Excavated earth will be used as backfill. Topsoil, seed, paving, hardscaping, and landscaping are not included.

Installation of aluminum fascia mounted posts with glass railings. - Includes: Railing and bottom aluminum bar.