Last updated: 2026-08-19
Roof Replacement Boise is a roofing company serving Boise and the Treasure Valley, and asphalt shingle roof replacement is one of the services we handle most. This page covers what the work involves here specifically — the climate, the code, and what it costs — rather than what it involves in general.
What we do on the first visit
The first visit is an inspection, not a sales call. We walk the roof with you, check the deck from the attic side where we can, count valleys and penetrations, and note the pitch and how much staging or safety equipment the job needs. We confirm whether any prior layers are on the roof already — code allows a maximum of two before a full tear-off is required — and then you get a written per-square price with tear-off and any deck repair as separate lines.
If we think repair is the better spend than replacement, or a different material suits your situation better, we say so on that visit — including when it means the smaller job for us.
What's included
- On-site inspection and a written per-square price for architectural or 3-tab shingle before any work starts
- Guidance on architectural vs. 3-tab shingle trade-offs for your roof, budget, and how long you plan to stay in the home
- Full tear-off to the deck — never a roof-over on a second layer
- Deck inspection and replacement of any rotten or delaminated sheathing, priced as its own line
- Ice-and-water shield at eaves, valleys, and penetrations; synthetic underlayment across the field
- High-wind-rated shingle and fastening pattern to manufacturer spec, not a builder-grade minimum
- New starter strip, drip edge, and ridge cap shingles — not reused off the old roof
- Full site cleanup with a magnet sweep for dropped nails and haul-away of the old roofing
What this costs in Boise
Asphalt Shingle Roof Replacement runs $450–$850 per roofing square installed in this area. 2026 published installed pricing for architectural (dimensional) asphalt shingle in the Boise/Treasure Valley area, translated from per-square-foot ranges (r2fidaho.com, idahoroofingcontractors.com); 3-tab shingle runs lower, roughly $350-$500 per square installed. The things that move a job up its range are tear-off, how much deck repair is needed, pitch, and how many valleys and penetrations your roof has. If you want a number before you call, the roof cost calculator will get you close.
When it needs doing
- Shingles curling, cupping, or losing granules in patches
- Bald spots where granules have worn away, exposing the asphalt mat
- Missing shingles or exposed nail heads after a wind event
- Cracking concentrated around fasteners after repeated freeze-thaw cycles
- Visible sagging or an uneven roofline
- Roof is 20+ years old and was installed during the 1990s-2000s building boom
Related reading
These go deeper on the questions that come up most on this job: