Comparing Shingle Roof Replacement Estimates: Look Beyond the Brand

Shingle roof replacement: compare the whole proposal
When you're comparing shingle roof replacement estimates, look at the complete roofing system. Two proposals can name the same shingle while using different underlayment, flashing and preparation.
Our 928 Roofing team looks at the layers beneath the shingles and the places where the roof meets walls, vents and edges. Those details help explain which materials and repairs your roof needs.
Start with the condition of the existing roof
We consider the main roof, porches and adjoining sections as part of the replacement plan. Damage to the wood beneath the shingles may not be visible until the old roofing comes off, so the surface underneath also needs attention.
We check the decking because it supports the shingles and the layers underneath them. If removal exposes damaged wood, we explain which areas need repair before the replacement materials can go on.

Look beyond the shingle name
The shingles are the part you see, but there are other layers protecting your home. Underlayment sits beneath the shingles, and leak barriers add protection in specified areas. Starter strips, ridge materials and ventilation also need to be included in the roof plan.
We also look at flashing, which helps keep water from getting in where the roof meets walls and openings. The condition of those connections matters just as much as the shingles above them. Our recommendation explains which materials need replacing and why.
Ask how the current roof is ventilated and whether the replacement will change it. The answer should relate to your home's construction. Our asphalt shingle installation guide provides additional background for these questions.
Questions we recommend asking about a shingle roof proposal
These questions help you understand the complete roof, including the materials beneath the shingles.
- Which roof areas and preparation are included? Check the roof sections included, what comes off, what stays and how nearby areas will be protected.
- How will you check the wood beneath the shingles? We explain what we can see during inspection and which areas may need a closer look after the old materials are removed.
- Which shingles and other materials are included? Ask for the product names, including the underlayment, starter and ridge materials. Confirm where any leak barrier will go.
- What happens around walls, vents and roof edges? Discuss walls, valleys, edges, vents and other openings. Ask which materials will stay and which will be replaced.
- What does the proposal include for ventilation? We consider the home's construction and existing airflow before recommending ventilation changes.
- Which materials finish the roof edges and ridges? Starter and ridge materials are parts of the complete shingle system. We explain which products suit the selected shingles and the roof design.
- What care will this shingle roof need? Think about nearby trees, drainage and how changes in the shingles or flashing can be spotted. We explain the care suited to the selected materials.
Plan for the roof around the shingles
Roof edges, valleys and openings are part of how the roof manages water. A replacement plan needs to consider those details alongside the appearance of the shingles.
We explain how those parts work together and which areas need attention on your home. Choosing a shingle is one decision within that larger roofing plan.
Choose with the condition of your home in mind
Sometimes the first unresolved question is whether replacement is needed at all. If you're unsure, read our roof repair and replacement guide and ask your roofer to show you why replacement is being recommended.
Planning shingle roof work in Flagstaff, Winslow or a nearby community? Talk with our local 928 Roofing team. We live here and understand why the materials, installation and care need to suit Northern Arizona homes. We'll explain the materials and help you plan a roof that suits your home. Our neighbors deserve to understand how their roof is being cared for.