As of September 2026, a full roof replacement in Kuna runs about $6,600 to $12,400 for a typical 2,100 square foot home, or $266 to $495 per square installed from 3-tab to designer shingles. Architectural shingles (GAF Timberline HDZ) are $380 to $410 per square. Measured from aerial LiDAR and county imagery, verified on site before any contract.
Kuna grew faster than almost any Idaho city through the 2000s and 2010s, filling with starter-home subdivisions along Linder and Meridian Road roofed in builder-grade architectural shingles. The earliest of those waves is now crossing twenty years old, and because whole subdivisions were roofed the same season, Kuna streets reach replacement age together. The September 2026 installed rates in the table below apply to every home size; in Kuna the bid moves on wind rating and on how many neighbors reroof at once more than on anything under the shingles.
| Home size | Roof area | 3-tab (GAF Royal Sovereign) | Architectural (GAF Timberline HDZ) | Metal |
|---|---|---|---|---|
| Under 1,200 sq ft | 14 to 16 squares | $3,700 to $4,300 | $5,300 to $6,600 | $6,000 to $12,400 |
| 1,200 to 1,800 sq ft | 16 to 22 squares | $4,300 to $5,900 | $6,100 to $9,000 | $6,800 to $17,000 |
| 1,800 to 2,500 sq ft | 22 to 30 squares | $5,900 to $8,000 | $8,400 to $12,300 | $9,400 to $23,200 |
| 2,500 to 3,500 sq ft | 30 to 42 squares | $8,000 to $11,200 | $11,400 to $17,200 | $12,800 to $32,600 |
| Over 3,500 sq ft | 42 to 50 squares | $11,200 to $13,300 | $16,000 to $20,500 | $17,800 to $38,800 |
Roof area is the billable squares a home of that size usually needs, including pitch, overhangs and waste; one square is 100 square feet of roof. Totals are the September 2026 installed rate for each line multiplied by that range, rounded to the nearest $100. Metal spans exposed-fastener panels to standing seam.
This site prices from a partner price book (Bork Roofing) at an all-in rate per square, $380 to $410 installed for GAF Timberline HDZ, covering installation, tear-off of one existing layer, starter strip and drip edge, ridge cap, ice and water shield, standard flashing and pipe boots, disposal, steep-slope labor up to 8/12. Guides that quote a wider span average many bids with many markups.
The number is for the measured roof, not the floor area: a typical 2,100 square foot home in Kuna carries about 25 squares of roof, which is where $6,600 to $12,400 comes from; the estimator measures yours.
Add-ons other guides fold into an average are itemized only when they apply: extra tear-off layers ($45 per square for each existing layer beyond the first); steep pitch ($35 per square on planes steeper than 8/12); decking (2 sheets included, then $95 per sheet); permit (the city's own fee where it is on file, else a $150 allowance).
Outside reference: This Old House, Cost of Roof Replacement in Idaho puts the Idaho average at $7,947 as of May 2026 ($6,117 to $20,703 statewide); a typical Kuna home at $6,600 to $12,400 sits inside that span.
Kuna's subdivision roofs are moderate truss pitches built for speed, walkable for a crew and quick to shingle. The steeper roofs are on the original townsite homes near downtown and along Swan Falls Road, where 1970s to 1990s ranches mix with older farm-era houses, and on the newer farmhouse-style builds whose tall gables need harness work.
Most Kuna roofs are first roofs, so tear-off is a single layer of aging architectural shingle. In-town homes near downtown Kuna and along Swan Falls Road with original 3-tab from the 1970s to 1990s sometimes carry a second layer, and Idaho code caps a roof at two, so those come off to the deck.
OSB sheathing on truss framing is the Kuna standard, and decking seldom appears on a subdivision bid beyond a sheet or two at a leaking vent. Kuna's open position on the Snake River plain, with little urban heat island effect next to the Birds of Prey conservation area, brings more freeze-thaw cycling than denser parts of Ada County, and that is what eventually loosens fasteners and lets water reach the deck.
Kuna reroofs are permitted through the City of Kuna Building Department for in-city properties, with Ada County handling the rural fringe. Kuna's newer subdivisions typically have HOA color palettes for roofing, worth checking before committing to a shingle color. The permit fee follows the city's current fee schedule; ask for it as its own line on the bid. Source: City of Kuna Building Department.
Kuna sits in a natural wind corridor on the flat plain south of the Boise River, with strong southwesterly gusts year-round. Wind-rated shingles installed to the manufacturer's high-wind nailing pattern are essential in 83634, and the gust-driven creasing and lifted edges on south and west slopes that local inspections find after every storm are the cost of skipping them.
Flat lots and wide subdivision streets make Kuna simple to stage. The bigger lever is volume: because whole streets hit replacement age together, a crew that can set up on three neighboring roofs in one week saves mobilization on each, which is the volume pricing Kuna neighbors get when they coordinate.
Pricing last updated September 2026. Per-square rates are the September 2026 Treasure Valley installed price list for the GAF asphalt lines and metal panel systems in the estimator; every figure on this page is calculated from that list, not typed in.
Roofs in Kuna are measured from USGS aerial LiDAR flown September 2023 to August 2024, about 16 points per square meter, and Ada County aerial imagery flown 2025 at 3 inch resolution; where LiDAR has not been flown yet, the estimate comes from aerial imagery alone and is labeled that way. A local roofing pro measures on site before any contract. Source: USGS 3D Elevation Program, ID_SouthernGaps_2_D23; Ada County Imagery 2025 (ACHD image service). How the measurement and pricing work and who runs RoofingQuotePro and who pays are on their own pages.
No appointment. No salesperson. Just your address, and the roof is measured from aerial LiDAR and county imagery.
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