WINDOWS GUIDE
Understand Windows Before You Buy, Replace, or Install
Use this windows guide to compare window types, frame materials, glass performance, installation methods, replacement options and costs.

WINDOW TOPICS
What Do You Need to Know About Windows?
Start with the basics, compare your options, or jump directly to the part of your window project you’re working on.
01
WINDOW TYPES
What style works for my home?
Single-hung, double-hung, casement, sliding, fixed and specialty windows.
02
FRAMES & MATERIALS
What should my windows be made of?
Compare vinyl, aluminum, fiberglass, wood and composite frames.
03
GLASS & ENERGY
What do all the performance numbers mean?
Understand Low-E glass, insulated glass, U-factor, SHGC and energy efficiency.
04
REPLACEMENT
Should I repair or replace my windows?
Learn when replacement makes sense, retrofit vs. new construction, and what the process involves.
05
INSTALLATION
How should a window actually be installed?
Understand flashing, waterproofing, anchoring, sealing and common installation mistakes.
06
COST & BUYING
How much should windows cost?
Compare pricing, product options, measurements and what to look for before you buy.
START WITH YOUR PROJECT
What Are You Working On?
Choose the situation that best matches your project and we’ll help you figure out what to do next.
01
REPLACING WINDOWS
I have existing windows I want to replace.
Learn how to evaluate your current windows, choose replacements, understand costs and prepare for installation.
02
BUILDING OR REMODELING
I’m choosing windows for a new project.
Understand window types, sizes, materials, glass performance and installation requirements.
03
HAVING A WINDOW PROBLEM?
Is something wrong with my window?
Learn what common problems may mean and when repair, adjustment or replacement should be considered.
