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Serving Kansas, Missouri, and Atlanta Homeowners for Over 35 Years
Marvin fiberglass windows deliver performance and longevity that vinyl simply can't match. Built to withstand extreme weather while maintaining their beauty for decades.
8× Stronger Than Vinyl
Unmatched structural integrity
No Denting, Warping or Fading
Holds up in any climate
Energy Efficient Year-Round
Reduces heating & cooling costs
Built for Long-Term Durability
Backed by lifetime warranty
Local Teams. Trusted Service. Four Growing Markets
MO · KS
Kansas City
Since 1986
Serving the KC metro for over three decades with premium window and remodeling expertise.
- Windows
- Doors
- Siding
- Bath Remodeling
MO
St. Louis
Since 1991
Trusted by thousands of St. Louis homeowners for windows, doors, siding, and bath upgrades.
- Windows
- Doors
- Siding
- Bath Remodeling
GA
Atlanta
Since 2008
Bringing premium craftsmanship to Atlanta-area homes with local team expertise and care.
- Windows
- Doors
- Siding
New Location
FL
Tampa Bay
Opening 2026
Now open in Tampa! Alenco's premium products and white-glove installation have arrived in Florida.
- Windows
- Doors
- Bath Remodeling
Popular Home Upgrades for Comfort, Style, and Value
Windows
Upgrade your home's comfort, efficiency, and curb appeal with premium fiberglass and vinyl window options built to perform.
Explore Windows
Doors
From entry doors to patio doors, we install beautiful, energy-efficient options that boost security and style.
Explore Doors
Siding
Transform your home's exterior with durable, low-maintenance siding that protects and beautifies for decades.
Explore Siding
Bath Remodeling
Create a spa-worthy retreat in your own home. Our bath specialists design and install beautiful bathrooms fast.
Explore Bath
A Family-Owned Legacy of Excellence
Since 1986, Alenco has grown from a small family business into one of the Midwest's most trusted home remodeling companies. Our philosophy has always remained the same: offer superior products, exceptional service, and honest pricing.
We don't just upgrade homes; we build lasting relationships with our customers. When you choose Alenco, you're choosing a team that treats your home as if it were their own, ensuring every project meets our rigorous standards of quality.
Read Our Full StoryA Remodeling Partner Homeowners Have Trusted Since 1986
Family-Owned & Operated
We've been family-owned since day one. That means a personal standard of care that big corporations simply can't replicate.
Limited Lifetime Warranty
We back every product and installation with industry-leading warranty coverage so you can invest with confidence.
Factory-Trained Installers
Our installation crews are certified and trained to manufacturer standards — ensuring perfect fit and flawless performance.
Premium Product Partners
We partner with industry leaders like Marvin to bring you products that outperform in beauty, durability, and efficiency.
Four Regional Markets
With local teams in Kansas City, St. Louis, Atlanta, and now Tampa Bay, we combine national expertise with hometown service.
Flexible Financing Available
Don't let budget hold you back. We offer financing options designed to fit your timeline and your home improvement goals.
35+
Years in Business
4
Regional Markets
10K+
Homes Upgraded
4.9
Average Customer Rating
A Simple 4-Step Path to a Better Home
No stress, no guesswork. Our streamlined process is designed around your schedule and comfort.
Schedule Your Free Estimate
A quick call or online form is all it takes. We'll match you with a local specialist at a time that works for you.
Meet Your Product Specialist
We come to your home, assess your needs, and walk you through every available option.
Customize Your Project
Choose your products, styles, and finishes. We'll build a proposal tailored to your home and budget.
Professional Installation
Our factory-trained crew handles everything — cleanly, precisely, and on schedule.
Why Homeowners Recommend Alenco
“
We had six windows and a front door replaced and the whole team was exceptional from start to finish. The fiberglass windows look amazing and the energy savings are already noticeable.
Mark & Sandra T.
Kansas City · Windows & Doors
“
The bathroom transformation was beyond what I imagined. Done in just two days, and the quality is top notch. I tell every neighbor about Alenco. Absolutely recommend.
Jennifer L.
Atlanta · Bath Remodeling
“
We just moved to Tampa and reached out after seeing their new location. Super responsive local team, great products, and no pressure. Thrilled we found them.
David R.
Tampa Bay · Windows & Siding
4.9 out of 5 — based on 194 Verified Reviews
Ready to Upgrade Your Home?
Join thousands of homeowners who've trusted Alenco's family of experts since 1986. Your free, no-pressure estimate is just one click away.
- No-pressure consultation
- In-home or virtual available
- Serving Kansas City, St. Louis, Atlanta & Tampa
- Family-owned since 1986
