Short answer: Most Colorado homeowners pay $450 to $1,400 installed per window for a mid-range vinyl or fiberglass replacement, with whole-house projects (10–15 windows) typically landing between $6,000 and $18,000. Premium wood or aluminum-clad windows run higher. Josh Brooks Construction and Renovation Inc. is a licensed, local general contractor (Boulder County license CON-24-0152) installing Pella windows across the Front Range since 2014.
Call 720-828-7997 | Text 720-453-5095 | joshbrooksconstruction@gmail.com
How much do Pella windows cost per window, installed?
Pella prices vary a lot by series, material, and size. Here’s what Front Range homeowners are seeing in 2026:
- 150 Series (vinyl): $350–$850 installed
- 250 Series (vinyl): $450–$1,350 installed
- Encompass (vinyl): $300–$1,400 installed
- Lifestyle Series (wood): $400–$2,000 installed
- Impervia (fiberglass): $400–$2,200 installed
- Architect Series (aluminum-clad): $1,300–$3,200 installed
- Reserve (wood): $1,400–$3,500 installed
Across all series, expect roughly $300 to $3,500 per window installed, with labor alone running $100–$500 per window depending on height, trim work, and whether it’s a simple pocket replacement or a full-frame tear-out.
What drives the price up or down?
- Material — vinyl is most affordable; wood and fiberglass cost more; aluminum-clad is premium.
- Glass package — double-pane is standard; triple-pane and Low-E coatings add cost but cut heating and cooling bills, which matters at Colorado’s elevation and temperature swings.
- Window style — sliders are the cheapest; bay and bow windows are the most expensive.
- Replacement type — pocket (insert) replacement is cheaper than full-frame replacement, which is sometimes required when a frame is rotted, out of square, or being resized.
- Access and height — second-story or hard-to-reach windows add labor time.
Do I need egress windows for my basement?
If you’re finishing a basement in Colorado — or adding a bedroom anywhere in the home — building code requires an egress window: a minimum clear opening, sill height, and window well sized so someone can escape (or firefighters can enter) in an emergency. This is one of the most common corrections we see on basement finishing permits along the Front Range. If you’re budgeting a basement remodel, price egress windows and any required window well separately from your standard replacement windows — they typically cost more due to the excavation and well construction involved.
Are energy-efficient windows worth it at Colorado’s elevation?
Generally, yes. Colorado’s big day-to-night temperature swings and intense high-altitude sun put real stress on windows. Low-E glass coatings and double- or triple-pane construction reduce UV fading on floors and furniture and can meaningfully lower heating and cooling costs. Look for the NFRC label on any window and compare U-factor (lower is better for insulation) and SHGC (solar heat gain coefficient) before you buy, especially for south- and west-facing rooms that take the brunt of Colorado sun.
How long does window replacement take?
A typical whole-house window replacement (10–15 windows) takes 1–3 days once materials arrive. Custom Pella orders often have a lead time of several weeks, so if you’re planning around weather, order early — late summer and fall are the ideal install window before Colorado’s first hard freeze.
Should I replace all my windows at once or one at a time?
Replacing all windows in one project is more cost-effective per window (one mobilization, one crew visit, volume pricing on materials) and gets you a consistent look and performance across the house. If budget is the constraint, prioritize the worst offenders first — usually the oldest single-pane windows, anything with visible seal failure (fogging between panes), and windows on the sun-exposed south or west side of the house.
What areas do you install Pella windows in?
Josh Brooks Construction and Renovation Inc. installs windows across the Front Range — Boulder, Weld, Larimer, Jefferson, and Douglas counties — including Longmont, Boulder, Fort Collins, Loveland, Greeley, Erie, Firestone, Brighton, Thornton, Westminster, Golden, Arvada, and the greater Denver metro.
Get a free window replacement quote
We’ll walk your home, measure every opening, and give you a written, locked price within 24 hours — no pressure:
Call 720-828-7997
Text 720-453-5095
Email joshbrooksconstruction@gmail.com
Licensed, local, and installing Pella windows on the Front Range since 2014. Veteran and senior discounts applied automatically.
Frequently asked questions
How much does it cost to replace windows in a whole house in Colorado?
For a typical home with 10–15 windows, expect a total project cost of roughly $6,000 to $18,000 with mid-range vinyl or fiberglass windows, or more with premium wood or aluminum-clad series like Pella Reserve or Architect.
What is the cheapest type of replacement window?
Vinyl sliding windows are typically the most affordable option, often starting around $300–$450 installed, while custom shapes like bay and bow windows and premium wood or aluminum-clad frames cost significantly more.
Do I need a permit to replace windows in Colorado?
Simple like-for-like window replacement often doesn’t require a permit, but resizing a window opening, adding an egress window, or structural changes typically do. Requirements vary by city and county, so check with your local building department or ask your contractor to pull the permit for you.
What size window is required for a basement bedroom in Colorado?
Code requires an egress window with a minimum clear opening (commonly at least 5.7 square feet, with minimum height and width thresholds), a maximum sill height above the floor, and an adequately sized window well if the window sits below grade. A licensed contractor familiar with your local building department’s requirements should confirm exact dimensions before installation.
How long do Pella windows last?
Quality vinyl and fiberglass replacement windows typically last 20–30 years or more with proper installation and maintenance, and most Pella series carry manufacturer warranties covering glass, hardware, and workmanship.
Do you install Pella windows?
Yes. Josh Brooks Construction and Renovation Inc. installs Pella replacement windows across the Front Range, with free in-home measurement and a written 24-hour quote. Call 720-828-7997 or text 720-453-5095.
Sources & references
Josh Brooks Construction and Renovation Inc. backs the guidance on this page with authoritative sources:
