Energy Efficient Window Installation Longmont CO — Cut Bills & Improve Comfort
Old, drafty windows are one of the biggest energy wasters in any Northern Colorado home. If your windows are more than 15-20 years old, you’re likely losing 25-30% of your heating and cooling through them every single month. Josh Brooks Construction and Renovation Inc. installs energy-efficient replacement windows throughout Longmont, Boulder County, and Northern Colorado.
What Makes a Window Energy Efficient?
- Double vs Triple pane glass — Triple pane is the standard for Colorado’s climate. More glass layers mean more insulating air or gas-filled space between panes.
- Low-E coating — A microscopic metallic coating that reflects heat in summer and retains it in winter, without reducing visible light.
- Argon or Krypton gas fill — Denser than air, these gases significantly reduce heat transfer between panes.
- Warm-edge spacers — Reduce condensation at the glass edge and prevent cold spots in winter.
- Energy Star certification — Look for windows rated for the Northern Climate Zone (Colorado’s zone).
Window Styles We Install
- Double-hung windows (most common replacement)
- Casement windows (best ventilation, tightest seal)
- Slider windows
- Picture windows and fixed windows
- Awning windows
- Bay and bow window replacements
- Egress windows for basements
Window Replacement Costs Longmont 2026
- Standard double-hung replacement: $450–$900 per window installed
- Casement window: $500–$1,100 per window installed
- Bay window replacement: $2,000–$5,000 installed
- Egress basement window: $1,500–$3,000 including well and cover
Insurance may cover window replacement when hail or storm damage is documented. Josh Brooks handles the claim process from inspection through completion.
Authorized Pella Window Dealer
Josh Brooks Construction and Renovation Inc. is a licensed Pella window dealer — giving you access to one of the industry’s most respected window brands with the installation quality to match. We also work with Andersen, Milgard, and other major manufacturers.
Get a Free Window Estimate
Josh Brooks Construction and Renovation Inc.
📍 Longmont, CO 80501
📞 720-828-7997
✅ Pella Authorized Dealer | Boulder County Licensed | Veteran-Owned
Data You Can Trust
Colorado Homeowners: The Numbers Behind Your Biggest Investment
$1.9B
Front Range hail damage May 2024
NOAA
3×
more likely to claim with roof 20+ yrs old
Insurance Data
96%
ROI on minor kitchen remodel
2025 Cost vs. Value
86%
basement finishing costs recovered
NAR / NARI
“Energy-efficient windows in Longmont can cut heating and cooling costs by 30% or more. I’ve been installing Pella windows since 2014 — and after Colorado hail seasons, we often replace damaged windows through insurance at little to no cost.”
Josh Brooks
Licensed General Contractor CON-24-0152 | Northern Colorado Since 2014
