Is $12,000 to replace asphalt shingles with GAF materials a fair price?

This quote is for a complete roof replacement, including the removal of existing shingles and installation of new GAF Timberline HDZ shingles. The project includes comprehensive protection for the property and disposal of all debris. - Property Protection: Cover the house all around with tarp to protect the ground, siding, and windows. - Shingle Removal: Take off existing shingles down to the deck. - Plywood Installation: Supply and install 5/8 Fire rated plywood all over the roof surface. - Ice/Water Shield: Supply and install GAF Storm Guard ice/water shield all around rakes/eves, valleys, pipes, chimney, skylights, etc. (6ft ice-water shield underlayment along eaves). - Synthetic Underlayment: Supply and Install GAF Roof Breathable Deck Armor Synthetic paper all over the roof. - Starter Shingles: Supply and Install GAF Pro-Starter shingles on all eves and rakes. - Pipe Boots: Supply and Install Pipe Boots Flashing. - Drip Edges: Supply and Install aluminum 10 - Step Flashing: Supply and install step flashing along walls and chimney. - Chimney Cricket: Supply and install new cricket behind the chimney as required by Building Code. - Chimney Flashing: Supply and install copper flashing around chimney. - Power Vent: Supply and install new GAF Power Vent. - Attic Ventilation: Supply and install new vents as needed for attic ventilation. - Shingles: Supply and Install GAF Lifetime Timberline HDZ Shingles (color chosen by owner). - Ridge Vent: Supply and Install GAF Cobra Ridge Vent SnowCountry. - Ridge Caps: Supply and Install GAF TimberTex Ridge Caps. - Wall Flashing: Supply and install aluminum flashing along walls all around the house. - Debris Removal: Remove and dispose of all debris related to this project (dumpster will be placed on driveway). - Nail Removal: Magnetic roller will be used to remove all nails around the house. - Shingle Fastening: 6 nails per shingle. - Manufacturer Warranty: Lifetime (50 Years). - Workmanship Warranty: 30 Years.

This quote is for the tear-off and installation of new asphalt shingles on a roof with a pitch between 2/12 and 7/12. The scope includes various materials and labor. - Shingles: GAF Timberline American Harvest, Alaska Sand/Metalmark Grey, 13-1/4" x 39-3/8" - Scope: Shingles Tear Off And Install (2/12 To 7/12 pitch) - Material Handling: Hand Haul Shingles - Underlayment: GAF "DaBella" Tiger Paw - Disposal: First Layer Disposal Fee - Ventilation: GAF Cobra Intake Pro, GAF Cobra Ridge Vent 3 - Warranty: GAF Timberetex DaBella Gold Warranty - Pipe Boot: EZ Plug, GAF Pivot Pipe Boot - Drip Edge: 1" x 2" Drip Metal (Black) - Starter Shingles: GAF ProStart Starter Shingles - Ice & Water Shield: GAF Storm Guard - Fasteners: 1- 1/4" Coil Nails (Carton of 7,200), Plastic Cap Nails 1-1/4" 2500/BKT, Cap Nails - Chimney: Chimney Cricket - Flashing: 24" W.Valley Flashing, Big T Metal Flashing, Step Flashing (Black), CW-10 CS Flashing (10 ft) - Plywood: 4' x 8' CDX Plywood Labor - Sealant: Caulk (Black, 10.1 Oz. Cartridge) - Debris Removal: Dump Wood (listed twice)

This estimate is for the replacement of the existing asphalt shingle roof, including the following items: - Tear off: Existing shingles (1 layer) - Decking: Inspection, replacement of up to 2 sheets of plywood (additional cost for more) - Underlayment: Synthetic underlayment (e.g., GAF FeltBuster) - Ice and Water Shield: In valleys and eaves (e.g., GAF StormGuard) - Edging: New drip edge - Flashing: Around penetrations (vents, chimney) - Shingles: New asphalt shingles (e.g., GAF Timberline HDZ) - Ridge Cap: New ridge cap shingles - Ventilation: New attic ventilation (e.g., GAF Cobra Ridge Vent) - Cleanup: Debris removal and disposal