Quality Installation & Home Improvement, Belleville, IL
Serving Homeowners Throughout St. Louis, Missouri

Replacement Windows &
Siding in St. Louis, MO

Transform your home with professionally installed replacement windows and premium siding from Quality Installation & Home Improvement. For more than 40 years, homeowners throughout St. Louis have trusted us to improve curb appeal, increase energy efficiency, and protect their homes with premium products, expert craftsmanship, and dependable service.

40+ Years Experience

Serving Metro East homeowners since 1984.

Industry-Certified

Experienced installation teams you can trust.

Premium Products

We install only proven, high-quality brands.

Guaranteed Workmanship

Our installations are backed by our commitment to quality.

Your Trusted St. Louis Window & Siding Company

Your home's exterior should do more than create a great first impression—it should protect your investment, improve energy efficiency, and provide lasting value. At Quality Installation & Home Improvement, we've spent more than four decades helping St. Louis homeowners replace aging windows and worn siding with premium products designed for long-term performance.

Whether your windows are drafty, difficult to operate, or no longer provide the comfort your family deserves, or your siding has become faded, cracked, or weather-damaged, our experienced team is here to help. We take the time to understand your home's needs, explain your options, and recommend solutions tailored to your style, budget, and long-term goals.

We believe exceptional results begin with exceptional products. That's why we partner with manufacturers known for superior craftsmanship, dependable warranties, and outstanding energy efficiency. Combined with our professional installation, you'll enjoy exterior improvements that continue to perform beautifully through every Midwest season.
STL windows and siding
Complete Exterior Solutions

Professional Window & Siding Services in St. Louis

Whether you're replacing outdated windows, upgrading your home's siding, or planning a complete exterior renovation, Quality Installation delivers premium products and expert craftsmanship that improve your home's beauty, comfort, and long-term value.
STL windows

Replacement Windows

Modern replacement windows improve your home's energy efficiency while creating a brighter, quieter, and more comfortable living space. We install high-performance windows in a wide variety of styles to complement every home's architecture while delivering years of dependable performance.

Highlights:
  • Energy-efficient window options
  • Double-hung, casement, slider & more
  • Manufacturer-backed warranties
  • Energy-efficient window options
Learn More About Windows →
STL siding

Premium Siding Installation

New siding protects your home while dramatically improving curb appeal. Our premium siding products are engineered to resist fading, cracking, moisture, and severe Midwest weather while providing beautiful, low-maintenance performance for years to come.

Highlights:
  • Durable vinyl siding
  • Low-maintenance exterior solutions
  • Improved energy efficiency
  • Increased curb appeal
Learn More About Siding →

Why Quality Installation?

Premium Products Only

We carefully select windows and siding from trusted manufacturers known for lasting performance, energy efficiency, and dependable warranties.

Experienced Installation Teams

Our skilled installers follow proven installation practices that help maximize the performance, appearance, and lifespan of your new exterior products.

Built Around Your Home

Every recommendation is tailored to your home's design, your family's needs, and your budget—never a cookie-cutter solution.

A Reputation You Can Trust

For decades, homeowners across the Metro East have relied on Quality Installation for honest advice, quality workmanship, and dependable results.

Contact Us

If you would like information regarding any of our services, or would like to schedule an appointment for a consultation, feel free to contact us by submitting this form.

Your home is your biggest investment. Trust it to the local company with over 40 years of serving the Metro East.

Scot Lehr, Owner

Our Service Areas

Illinois Windows:  Edwardsville IL Replacement Windows, Glen Carbon IL Replacement Windows, Troy IL Replacement Windows, Highland IL Replacement Windows, Collinsville IL Replacement Windows, Maryville IL Replacement Windows, Belleville IL Replacement Windows, Mascoutah IL Replacement Windows, New Baden IL Replacement Windows, O'Fallon IL Replacement Windows, Swansea IL Replacement Windows, Columbia IL Replacement Windows, Waterloo IL Replacement Windows, Smithton IL Replacement Windows, Millstadt IL Replacement Windows, Red Bud IL Replacement Windows, Lebanon IL Replacement Windows, Alton IL Replacement Windows, Granite City IL Replacement Windows, Fairview Heights IL Replacement Windows, Freeburg IL Replacement Windows, New Athens IL Replacement Windows, Marissa IL Replacement Windows, Shiloh IL Replacement Windows

Illinois Siding:  Edwardsville IL Siding, Glen Carbon IL Siding, Troy IL Siding, Highland IL Siding, Collinsville IL Siding, Maryville IL Siding, Belleville IL Siding, Mascoutah IL Siding, New Baden IL Siding, O'Fallon IL Siding, Swansea IL Siding, Columbia IL Siding, Waterloo IL Siding, Smithton IL Siding, Millstadt IL Siding, Red Bud IL Siding, Lebanon IL Siding, Alton IL Siding, Granite City IL Siding, Fairview Heights IL Siding, Freeburg IL Siding, New Athens IL Siding, Marissa IL Siding, Shiloh IL Siding

Missouri Windows:  St. Louis MO Replacement Windows, Mehville MO Replacement Windows, Oakville MO Replacement Windows, Arnold MO Replacement Windows, Fenton MO Replacement Windows, Sunset Hills MO Replacement Windows, Sappington MO Replacement Windows, Kirkwood MO Replacement Windows, Maplewood MO Replacement Windows, Shrewsbury MO Replacement Windows, Rock Hill MO Replacement Windows, Richmond Heights MO Replacement Windows, Clayton MO Replacement Windows, Creve Coeur MO Replacement Windows, Florissant MO Replacement Windows, Manchester MO Replacement Windows, Ballwin MO Replacement Windows, Town And Country MO Replacement Windows, Frontenac MO Replacement Windows, Des Peres MO Replacement Windows, Affton MO Replacement Windows

Missouri Siding:  St. Louis MO Siding, Mehville MO Siding, Oakville MO Siding, Arnold MO Siding, Fenton MO Siding, Sunset Hills MO Siding, Sappington MO Siding, Kirkwood MO Siding, Maplewood MO Siding, Shrewsbury MO Siding, Rock Hill MO Siding, Richmond Heights MO Siding, Clayton MO Siding, Creve Coeur MO Siding, Florissant MO Siding, Manchester MO Siding, Ballwin MO Siding, Oakville MO Siding, Frontenac MO Siding, Des Peres MO Siding, Affton MO Siding

Services
Windows Roofing Decks & Patios Siding Carpentry
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