Ada County, Idaho
Replacement Windows in Boise, ID
Idaho's capital, from the historic North End to the Foothills
A lot of Boise's North End, East End, and Bench homes still carry their original single-pane wood windows — beautiful from the street, but drafty, hard to operate, and leaking heat through every cold snap that rolls off the Foothills. Iron Crest Exteriors installs energy-efficient replacement windows that respect the look of these older neighborhoods while cutting drafts and lowering heating and cooling bills, with the proper flashing and air sealing that century-old Boise framing demands.
What's included
- Full-frame & insert replacement windows
- Double-hung, casement, slider & picture windows
- Energy-efficient double/triple-pane glass
- Vinyl & fiberglass frames
- Egress & new-construction windows
- Proper flashing & air sealing
In Boise, we handle replacement windows across the North End, the East End, the Bench, and the rest of Ada County — matched to the age, style, and exposure of each home.
Our process
How replacement windows works in Boise
- 01
Free on-site consultation and precise measuring
We measure every opening accurately, check each existing frame for rot, racking, and prior water damage, and note egress requirements and difficult exposures. You get a written estimate scoped to the openings and approach that actually fit your home.
- 02
Window selection and specification
We walk you through insert versus full-frame for each opening, frame materials (vinyl vs. fiberglass), glass packages (double vs. triple pane, low-E coatings, gas fill), and the U-factor and SHGC numbers that matter for our climate — with straight guidance, not a sales pitch for one product.
- 03
Removal and opening prep
Old units come out carefully to protect surrounding walls and finishes. On full-frame jobs we expose the rough opening, inspect and repair the framing, and prepare a clean, square opening to set the new window into.
- 04
Setting, flashing, and air sealing
Each window is set plumb, level, and square, then shimmed and fastened so it operates smoothly and locks cleanly. We flash the sill and head to manage any water that reaches the opening and air-seal the perimeter with the proper sealant or foam so energy isn't lost around the frame.
- 05
Trim, finishing, cleanup, and walkthrough
Interior and exterior trim is finished cleanly, exterior joints are sealed, and the work area is cleaned up with a check for stray fasteners and glass. We walk every window with you — opening, locking, and sealing — before the job is closed out.
Every Boise job includes pulling any permit Ada County requires and a full clean-up — we leave your home tight, weather-sealed, and looking sharp.
Working in Boise
Idaho's capital, from the historic North End to the Foothills
Boise climbs from the Boise River and its Greenbelt up into the Foothills, layering century-old North End and East End homes over mid-century Bench ranches and newer hillside subdivisions like Harris Ranch. That spread of building eras means the exterior conditions vary block by block — original old-growth wood lap and cedar shakes downtown, painted hardboard and aluminum on the Bench, and 1990s–2000s vinyl on the foothill edges that is now reaching replacement age.
Older Boise homes often hide failing siding and single-pane wood or aluminum windows behind charming facades, while south- and west-facing foothill elevations take a beating from intense afternoon sun. Freeze-thaw swings and wind off the hills make proper flashing, house wrap, and a weather-tight install matter as much as the material itself.
Areas we serve
- the North End
- the East End
- the Bench
- Southeast Boise
- Harris Ranch
- West Boise
Around Boise
- the Boise River
- the Boise Foothills
- the Greenbelt
- Table Rock
Replacement Windows in Boise — FAQs
Do you offer replacement windows throughout Boise?
Yes — we cover all of Boise and Ada County, from the North End and the East End to the Bench and Southeast Boise. Reach out for a free on-site estimate.
Do you work outside Boise, too?
We do — along with Boise, we regularly handle replacement windows in nearby Garden City, Eagle, Meridian, Kuna and across the wider Treasure Valley. If you're near the Boise River, you're well inside our service area.
Will you clean up after replacement windows in Boise?
Always. Every Boise job ends with a full clean-up — we haul away the old materials and packaging and leave your Ada County home tidy and protected.
What's the difference between full-frame and insert replacement windows?
Insert (pocket) replacement fits a new window into your existing frame without removing it — faster, less expensive, and it preserves your trim, but it only works when the existing frame is square, dry, and sound. Full-frame replacement removes everything down to the rough opening, which is the right choice when the frame is rotted, out of square, or was never properly flashed. Full-frame costs more and disturbs more trim, but it lets us correct the flashing and air sealing at the opening. We assess each opening individually and recommend the approach that actually fits its condition.
What do U-factor and SHGC mean, and which numbers should I want?
U-factor measures how well a window resists heat flow — the lower the number, the better it insulates, which matters most for our cold winters. SHGC (Solar Heat Gain Coefficient) measures how much solar heat the glass lets in — a moderate-to-low value helps keep west- and south-facing rooms from overheating in our intense summer sun. For the Treasure Valley, a low U-factor with a balanced SHGC is usually the sweet spot. We'll point you to units that meet the applicable energy code and suit each elevation's exposure.
Are triple-pane windows worth it here, or is double-pane enough?
Double-pane low-E glass with an inert gas fill is the practical baseline for our climate and performs well for most homes. Triple-pane adds another layer of insulation and meaningfully reduces outside noise, which can be worth it on exposed elevations, very cold-sensitive rooms, or homes near busy roads. It costs more and weighs more, so we'll be honest about where it pays off for you and where double-pane is the smarter spend.
Replacement Windows in nearby cities
We work across the Treasure Valley near Boise.
Related services in Boise
Exterior projects often pair up — here's what goes well with replacement windows.
Need replacement windows in Boise?
Tell us about your Boise home and the project you have in mind — we'll come look and give you a straight, free estimate.