Gutter Installation Cost in Boise (2026)

In Boise in 2026, seamless aluminum gutters cost about $4 to $9 per linear foot installed, according to This Old House's published gutter cost guide. A 64-foot K-style project comes to $6.29 to $10.45 per linear foot in Homewyse's May 2026 estimate (K-style is the standard flat-bottomed gutter profile). Both are national published estimates, not Boise quotes.

Per-foot price only gets you part of the picture. Your total depends on how many linear feet of gutter your roofline needs ("lf" means linear feet). This Old House's published table shows how the cost adds up for common home sizes:

Homewyse's estimate excludes permits, sales tax, and general contractor markup. Ask any contractor what their final price includes.

Boise averages just 11.73 inches of precipitation a year, according to NOAA's 1991-2020 climate normals for the Boise Air Terminal. That is genuinely dry. But the same normals show 19.2 inches of average annual snowfall, with 14.9 inches of it falling from December through February.

Snow is where gutters earn their keep. When snow melts off a warm roof, the water has to go somewhere, and Boise's freeze cycle makes that water behave in ways you want to control. NOAA puts Boise's median first freeze at October 15 and the median first hard freeze at October 27. The National Weather Service defines a freeze as 32°F or below and a hard freeze as 28°F or below.

So Boise is dry and still gets a winter. Gutters carry snowmelt and spring rain away from the foundation, and they matter most in the freeze-thaw weeks around those dates.

Gutter quotes are priced per linear foot, so your total depends on your roofline. As a starting point, the U.S. Census Bureau reports the median completed single-family home at 2,142 square feet (2025). That anchor puts a typical Treasure Valley home in the middle of Modernize's published rule of thumb: most homes need about 150 to 250 feet of gutters.

A 2,142-square-foot home lands between This Old House's 2,000-square-foot row (~200 lf) and 2,500-square-foot row (~250 lf) in the table above. Between those rows, the published installed cost runs from $1,149 to $2,324.

Square-footage math is only a planning tool. A smaller home might come in closer to Homewyse's 64-foot basis. A home with a walk-out basement, attached shop, or complex roofline will run toward the upper end. Only a contractor measuring the roofline gives you an exact footage number.

Most Boise gutter jobs use seamless aluminum, which This Old House's guide prices at $4 to $9 per linear foot installed. Seamless means the gutter is formed in one continuous piece on site to fit your roofline. Aluminum is the baseline material, and it is the price most quotes start from.

Aluminum is not the only option. Modernize's 2026 published guide puts installed seamless gutters at $8 to $28 per linear foot — a wider span that reflects premium-material options beyond standard aluminum. That spread shows how much material choice moves the final number.

When you compare quotes, ask what material and gauge (metal thickness) the price assumes. A $4-to-$9 aluminum job and an $8-to-$28 premium job are not the same product.

Start with the published ranges, then get local quotes on your own roofline. Three bids is a reasonable number for any home project, and every bid should itemize the same things:

• Ask what the price includes. Homewyse's $6.29-$10.45 estimate excludes permits, sales tax, and general contractor markup. The final number can be higher once those are added.
• Ask for the per-foot price. You cannot compare totals without knowing the linear footage behind them.
• Watch the freeze calendar. NOAA's normals put Boise's median first freeze at October 15 and the median first hard freeze at October 27, and 90% of years see a freeze by October 30. Schedule installation for September or early October if you want the work done before frost season.
• Respect the snow window. Boise averages 19.2 inches of snow a year, and 14.9 inches of it falls from December through February. Gutter work is far easier before that window.

The freeze normals are measured at the Boise Air Terminal and apply across the Treasure Valley, including Meridian and Nampa. This Old House's gutter guide was updated in June 2026, and Homewyse's estimate is dated May 2026. Every published number here is still an estimate; your roofline, your material and your installer set the final price.