
Single Hung Windows in St. Louis
Single hung window installation in St. Louis involves replacing outdated or inefficient windows with professionally installed, energy-efficient vinyl units designed to improve comfort, reduce drafts, and enhance long-term durability.
At STL Windows & Doors, we specialize in installing high-performance ProVia single hung windows built for Midwest weather conditions.
When homeowners in St. Louis want a reliable, cost-effective window upgrade, single hung windows remain a popular choice. Ideal for full-home replacements or phased upgrades, this classic window style delivers consistent performance and meaningful energy savings over time.

Single Hung Window Styles
ProVia Series single-hung windows feature a fixed top sash and an operable sash, delivering strong energy performance, smooth operation, and dependable weather resistance. They are a perfect choice for homeowners who want efficiency, durability, and long-term value from their replacement windows.

ProVia Endure® vinyl single hung windows offer exceptional performance with customizable design options and industry-leading quality.
Built with advanced technology and ENERGY STAR® certification, Endure windows help reduce heat loss in winter and heat gain in summer — keeping your home comfortable year-round while maximizing energy savings.
Single Hung Colors & Finishes
Choosing the right finish for your ProVia Endure® single hung windows is an important part of creating a cohesive look inside and out. Since single hung windows are available exclusively in the Endure line, you’ll have access to a wide range of interior and exterior color options designed to complement virtually any home style.
Customize your windows with:
- Interior vinyl colors and realistic woodgrain laminates for added warmth and character
- Exterior vinyl color options for a clean, low-maintenance finish
- Upgraded exterior paint colors, including both standard and trending selections
FOR INSPIRATION
WINDOW GALLERY
Energy Efficiency & Thermal Performance

ProVia single hung windows are engineered for high energy efficiency, helping limit heat transfer, control heat gain, and reduce long-term energy costs through advanced materials and precision-built glass systems.
We install ProVia windows that meet or exceed ENERGY STAR standards, using double pane glass to improve indoor comfort year-round.The ProVia Endure® series is ENERGY STAR® certified and was recognized as one of 2024’s Most Efficient window lines by the EPA, proof of ProVia’s commitment to sustainability, comfort, and long-term value for your home.
Cost & Value in the St. Louis Metro
ProVia single hung windows deliver long-term cost savings by improving efficiency, limiting unwanted air movement, and backing your investment with strong manufacturer warranties designed for long-term protection.
Pricing is influenced by window size, glass configuration, finish selections, and installation conditions. Over time, efficiency-driven performance supports measurable operating savings and a strong long-term return on investment.
Typical Installed Cost Per Window
| Package Level | Estimated Installed Cost (Per Window) | What’s Included |
|---|---|---|
| Basic | $350 – $550 | Standard vinyl single hung window, double-pane glass, professional installation |
| Mid-Range | $550 – $800 | Upgraded energy-efficient glass, improved frame construction, enhanced insulation |
| Premium | $800 – $1,100+ | Custom sizing, advanced glass packages (Low-E, argon), premium finishes and color options |
| Local St. Louis Typical Range | $350 – $900 | Most homeowners fall within this range depending on product selection and scope |
Basic
Estimated Installed Cost: $350 – $550
What’s Included: Standard vinyl single hung window, double-pane glass, professional installation
Mid-Range
Estimated Installed Cost: $550 – $800
What’s Included: Upgraded energy-efficient glass, improved frame construction, enhanced insulation
Premium
Estimated Installed Cost: $800 – $1,100+
What’s Included: Custom sizing, advanced glass packages (Low-E, argon), premium finishes and color options
Local St. Louis Typical Range
Estimated Installed Cost: $350 – $900
What’s Included: Most homeowners fall within this range depending on product selection and scope
Disclaimer: The pricing ranges shown above are general estimates based on recent industry averages and typical installation conditions in the St. Louis area and does not guarantee pricing. Actual costs may vary depending on window size, product selection, glass upgrades, structural conditions, accessibility, and unforeseen repairs. Every home is different, which is why we provide detailed, written estimates after an in-home assessment to ensure accurate and transparent pricing specific to your project.
When You Should Choose Single Hung Windows
Homeowners often choose single hung windows when replacing older windows that allow drafts, increase energy bills, or show signs of moisture problems.
Their straightforward window opening design works well across many home styles, especially when reliability, controlled airflow, and long-term affordability are priorities.
Common signs you may need single hung window replacement include:
- Noticeable air infiltration around the frame
- Rising cooling costs during warmer months
- Difficulty opening or closing outdated window types
- Visible water infiltration after heavy rain
- Reduced natural light due to aging or inefficient glass
Single Hung vs. Double Hung Windows
From our experience, homeowners often compare single-hung vs. double-hung windows when planning a replacement project. While they look similar, they differ in operation, ventilation, maintenance, and cost.
A single hung window has a fixed top sash and a bottom sash that slides up to open. A double-hung window features two operable sashes, allowing the top and bottom to move independently for greater ventilation flexibility.
Single-hung windows offer reliable airflow, fewer moving parts, and are typically more budget-friendly. Double hung windows provide added ventilation control and easier interior cleaning with tilt-in sashes.
If you’re looking for a cost-effective, traditional option with excellent energy efficiency, single-hung windows are a smart choice. Our team at STL Windows & Doors can help you decide which style best fits your home and comfort goals.

COMPARE Single Hung vs. Double Hung Windows
| Feature | Single Hung | Double Hung |
|---|---|---|
| Operable sashes | Bottom sash moves; top sash is fixed | Both top and bottom sashes move |
| Ventilation | Opens from the bottom only | Opens from top, bottom, or both |
| Airflow control | Standard ventilation | More flexible airflow options |
| Maintenance | Fewer moving parts | More moving components |
| Cleaning | Exterior glass cleaned from outside (upper floors) | Tilt-in sashes allow easier interior cleaning |
| Cost | Typically more affordable | Usually higher investment |
| Best for | Budget-friendly upgrades and a classic look | Maximum ventilation flexibility and easier cleaning |
Single Hung
- Operable sashes: Bottom sash moves; top is fixed
- Ventilation: Bottom only
- Airflow control: Standard
- Maintenance: Fewer moving parts
- Cleaning: Exterior glass cleaned from outside (upper floors)
- Cost: Typically more affordable
- Best for: Budget-friendly upgrades and a classic look
Double Hung
- Operable sashes: Both top and bottom sashes move
- Ventilation: Top, bottom, or both
- Airflow control: More flexible options
- Maintenance: More moving components
- Cleaning: Tilt-in sashes for easier interior cleaning
- Cost: Usually higher investment
- Best for: Ventilation flexibility and easier cleaning
Our Single Hung Window Installation Process
We’ve refined our process to ensure every ProVia Endure® single hung window is installed for long-term performance, energy efficiency, and lasting durability.
1) Free Consultation & In-Home Assessment
We start with a no-obligation estimate and on-site evaluation. During this visit, we review your existing openings, discuss ventilation and design preferences, and take precise measurements to ensure your new single hung windows fit perfectly.
2. Detailed Project Planning
Before installation day, we plan every detail, accounting for your home’s structure, exterior exposure, and water management needs. Because single hung windows feature a fixed top sash and operable bottom sash, precise alignment and leveling are critical for smooth operation and a proper seal.
3. Professional Installation
Our trained installers secure each window using manufacturer-approved methods, including integrated nailing fins for a tight, weather-resistant fit. We focus on insulation, flashing, and sealing to reduce air infiltration and maximize energy efficiency from day one.
4. Final Testing & Walkthrough
After installation, we test the operation of the bottom sash, confirm proper locking and sealing, and complete a final inspection. We’ll walk you through the finished project to ensure everything meets your expectations and performs exactly as it should.
Reviews From Satisfied Customers

“We can’t say enough good things about STL Windows and Doors. A few years back we found STL Windows and Doors through the recommendation from family members that raved about their service and products. STLW&D replaced all but one of our old windows at that time.”

“Tony and his team did a fantastic job of window installation. All were kind and courteous. I appreciate the concern to reinstall the power shades properly. Despite the fact my installation was the second week of December, the house never got cold. I would recommend STL Windows and Doors anytime.”
– Linda W.

“I was extremely pleased with STL windows and doors. I got many quotes and when STL windows and doors came to give me a quote and explain the description of the job to be done, the clean up process, and the detail to be completed it was a no brainer…Clean, efficient, and told me exactly what to expect. I would use STL windows and doors again”
– Annie A.
Why Choose STL Windows & Doors for Single Hung Window Installation?
When it comes to single hung window replacement in St. Louis, homeowners trust STL Windows & Doors for precision craftsmanship, premium ProVia products, and dependable service from start to finish. We specialize exclusively in ProVia Endure® single hung windows, delivering the ideal balance of energy efficiency, durability, and classic design. From your first consultation to your final walkthrough, our team keeps the process simple, organized, and stress-free.
Every window is custom-measured, carefully installed, and professionally sealed to ensure smooth operation and long-term performance. With STL Windows & Doors, you’re investing in quality results that enhance comfort, curb appeal, and home value for years to come.

Professional Single Hung Window Installation
Single hung windows may look simple, but proper installation is critical to ensure airtight sealing, smooth sash operation, and long-term energy efficiency. Because only the bottom sash moves, precise leveling and alignment are essential for reliable performance.
Our factory-trained installers use manufacturer-approved methods, integrated nailing fins, and advanced flashing techniques to create a secure, weather-resistant seal.
We pay close attention to insulation and finishing details so your new windows not only perform flawlessly but also look exceptional inside and out.
PROVIA PLATINUM DEALER
As a ProVia Platinum Dealer, we install only high-performance single hung windows engineered for strength, beauty, and efficiency.
These windows are custom-built to order using durable vinyl frames that resist warping, fading, and moisture intrusion.
Each unit features insulated, ENERGY STAR®-certified glass packages designed to minimize heat transfer and maintain year-round comfort in Missouri’s changing seasons.
The result is a window that delivers lasting value, lower energy costs, and dependable performance.


Backed by a 10-Year Workmanship Warranty
Quality installation is just as important as the window itself.
That’s why we stand behind every single hung window project with a 10-Year Workmanship Warranty.
Your satisfaction is our priority. From precise installation to long-term support, STL Windows & Doors provides the confidence and peace of mind you should expect from a trusted St. Louis window replacement company.
Service Area
We install singly hung windows all throughout St. Louis County and the nearby counties of St. Charles and Jefferson.
FAQs About ProVia Single Hung Windows
Ready to Get Started With Single Hung Windows?
If you are exploring single hung windows for your home, we are here to help you take the next step with confidence.
Take the first step towards a new look with our windows.



















































