Window Installation in Portland, OR
Energy-Efficient, Professionally Installed, and Built to Last
The correct windows do more than allow natural light into your home; they improve energy efficiency, increase curb appeal, and protect your house from the weather. Keith Green Construction has replaced and installed windows for Portland-area homeowners since 1988. Whether you are replacing old, drafty frames or simply looking to add an element of style in your home, we deliver expert installation with careful attention to detail.
All Your Glass Windows Should Be Installed And Sealed To Certification – We Seamlessly Blend Your Home’s Windows/ Start to finish — we stand by quality, communication, and long-term performance, with our guarantee on workmanship.
Why Portland Homeowners Choose Keith Green Construction
Keith Green Construction has proudly served Portland and surrounding areas since 1993. Our founder, Keith Green, was raised in a family of carpenters and built his company with a commitment to craftsmanship and personalized service. That same pride carries through to our entire team, from office staff to skilled installers.
When it comes to window installation, our customers benefit from decades of experience, manufacturer certifications, and a customer-first approach. We don’t just install windows—we help you select the right ones for your goals, budget, and home style.
Here’s what sets us apart:
- 32+ years of home improvement experience
- Detailed estimates and transparent communication
- Eco-friendly options and high-efficiency upgrades
- Workmanship guarantee and local service team
Types of Windows We Install
Every home has different needs. Whether looking for improved ventilation, more natural light, or better energy savings, we’ll help you choose the perfect window styles and materials to match your home and lifestyle.
We install all major types of windows:
- Double-hung and single-hung windows
- Casement and awning windows
- Bay, bow, and garden windows
- Picture and fixed-frame windows
- Sliding glass windows and doors
- Energy-efficient and low-E glass options
Window Replacement & Repair
Old or poorly installed windows can cost you money every month in energy loss—not to mention reduce your home’s comfort and appearance. Our team specializes in complete window replacement and repair, including framing repair, dry rot removal, and resealing.
We’ll assess the condition of your existing windows and provide options for complete replacement or partial repair, depending on what’s most cost-effective and efficient for your home.
Energy Efficiency & Insulation Benefits
Upgrading your windows isn’t just about looks—it’s one of the most impactful ways to boost your home’s energy efficiency. We install high-performance, insulated glass units that help reduce heat loss in the winter and heat gain in the summer.
Modern energy-efficient windows can:
- Lower your utility bills
- Improve indoor comfort year-round
- Reduce outside noise
- Increase home value
- Qualify you for local or federal energy incentives
Window Installation Done Right—Every Time
Proper installation is just as important as choosing the right window. Our certified installers ensure every window is flashed, sealed, and insulated to manufacturer specs—preventing future air leaks, water intrusion, and structural damage.
We also specialize in leak detection and waterproofing, ensuring your new windows protect your home for the long haul. And with our focus on clean job sites and respectful service, you’ll enjoy a smooth, stress-free experience from start to finish.
Let us help you upgrade your home with windows that look great, save energy, and perform year after year. Our team will guide you through the selection process and provide a precise, competitive quote—no pressure, no gimmicks.
