Last updated: 2026-08-19
Shingle Roofing Boise is a roofing company serving Boise and the Treasure Valley, and 3-tab 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 3-tab material before any work starts
- Full tear-off to the decking — 3-tab is not installed as a roof-over on an existing layer
- Deck inspection and replacement of any soft or delaminated sheathing, priced separately if found
- New synthetic underlayment across the full deck, with ice-and-water membrane at eaves and valleys
- 3-tab strip shingle install to manufacturer nail pattern and exposure spec
- New drip edge at eaves and rakes, new pipe boots and step flashing at walls and chimneys
- Ridge cap application and a magnet sweep of the yard and driveway for stray nails
- Haul-away and disposal of all old shingles and tear-off debris
What this costs in Boise
3-Tab Shingle Roof Replacement runs $250–$400 per roofing square installed in this area. 2026 published Boise-area installed pricing for 3-tab asphalt shingle (legacyroofingidaho.com). 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
- Flat, single-tab shingles curling or cupping at the corners
- Granule loss showing bald patches or heavy buildup in the gutters
- Cracking across tabs from repeated summer heat/winter freeze cycling
- Roof is 15-20+ years old and was originally installed as 3-tab
- Tabs lifting or flapping in wind rather than lying flat
- A home sale or refinance inspection flagging shingle condition
- Matching 3-tab shingles no longer available to patch an existing roof
Related reading
These go deeper on the questions that come up most on this job:

