Top Window Replacement & Installation in St Louis, Missouri Ranked

Upgrading your windows is one of the most impactful home improvement projects you can undertake in St. Louis. A professional window installation not only enhances your home's curb appeal but also provides crucial protection against the region's climate extremes, from sweltering, humid summers to cold, icy winters. Modern, energy-efficient windows can significantly reduce drafts, lower utility bills, and increase indoor comfort. This guide will help you understand your options for new window installation, from styles and materials to the professional process and what to expect, so you can make an informed decision for your home.

Chaney Windows And Doors

80 Weldon Pkwy, Maryland Heights, MO 63043

Chaney Windows And Doors is a locally owned company in St Louis, MO, specializing in window replacement and sliding glass door installation. They offer a variety of high-efficiency double and triple pane windows in multiple styles and colors, along with custom doors made from insulated steel or wood-grained fiberglass. As a Platinum ProVia dealer and certified installer, they have completed specialized training to ensure proper installation of replacement entry doors, storm doors, vinyl windows, and patio doors. The company uses product visualization tools to help customers see options before installation.

5.0

315 Reviews

Zen Windows of St. Louis

st louis

Zen Windows of St. Louis is a window replacement company serving the St Louis, MO area. They offer a wide selection of window styles including double-hung, casement, bay, awning, bow, and slider windows, catering to various aesthetic and functional needs. Their services focus on providing energy-efficient and durable window replacements with a range of materials and colors to choose from.

5.0

195 Reviews

Windows Doors & More LLC

3481 New Town Blvd, St Charles, MO 63301

Windows Doors & More LLC is a window replacement company based in St Louis, MO. The family-owned business has over 30 years of experience and focuses on detailed, high-standard window replacements. Their team includes trained installers with extensive hands-on experience, trusted by both local customers and national companies.

5.0

168 Reviews

Building Envelope Experts

1576 Fencorp Dr Suite 160, Fenton, MO 63026

Building Envelope Experts is a window replacement and sliding glass door installation company based in St. Louis, MO. They specialize in energy-saving home improvement solutions, including attic insulation and air sealing, to enhance home comfort and efficiency. The company offers a range of window and door options and conducts thorough evaluations to identify heat loss areas and recommend tailored energy-saving strategies. With many years of experience, Building Envelope Experts combines skilled craftsmanship with a focus on improving both aesthetics and energy performance for homeowners in St. Louis.

5.0

129 Reviews

Casey Exteriors

1366 Jeffco Blvd, Arnold, MO 63010

Casey Exteriors is a window replacement company based in St Louis, MO, offering services in residential and commercial roofing, siding, exteriors, and window installation. With over 26 years of experience, they provide durable and well-designed windows that improve home comfort and aesthetics. Their expertise includes using high-quality materials such as the Royal Dura Technology System for siding and advanced roofing products. Casey Exteriors serves the St. Louis area with a focus on long-lasting results and customer satisfaction.

4.9

236 Reviews

See more providers in St Louis, MO

Popular Window Styles for St. Louis Homes

Choosing the right window style is about balancing aesthetics, functionality, and ventilation for your specific needs. The architectural character of your St. Louis home often guides this choice, but understanding the benefits of each type is key.

Double-Hung Windows are a classic and incredibly popular choice for a reason. Both the top and bottom sashes move, allowing for flexible ventilation control-you can open the top, bottom, or both. This design also makes cleaning the exterior glass from inside your home much easier, a practical feature for multi-story houses. ^{1 2 3}

Casement Windows are hinged at the side and open outward with a crank mechanism. They offer wide, unobstructed views and excellent energy efficiency because the sash presses tightly against the frame when closed, creating a superior seal against St. Louis's wind and temperature swings. ^{4 5}

Sliding Windows (or gliding windows) operate horizontally on a track. They are an ideal, low-maintenance option for wider openings like in living rooms or walkout basements, providing a simple, modern look and easy operation. ⁴

Bay and Bow Windows are projecting windows that create a beautiful focal point and add both natural light and a sense of expanded space to a room. A bay window typically features a large central picture window flanked by two smaller angled windows, while a bow window is composed of four or more windows arranged in a gentle curve. These styles can transform a room's ambiance and are a coveted feature in many St. Louis properties. ⁶

Awning Windows are hinged at the top and open outward from the bottom. They are excellent for providing ventilation even during light rain and are often used in combination with larger picture windows or in basements and bathrooms. ⁴

Essential Energy Efficiency Features for the St. Louis Climate

St. Louis weather demands windows that can perform year-round. Investing in energy-efficient features is not just about comfort; it's a strategic move to manage heating and cooling costs. ^{7 8}

Frame Materials: The choice of material greatly impacts durability and insulation.

• Vinyl: Highly recommended for its excellent insulation properties, resistance to moisture and warping, and minimal maintenance requirements. It's a cost-effective choice that performs well in St. Louis's humidity. ^{7 9}
• Fiberglass: Known for exceptional strength, durability, and thermal performance. Fiberglass frames are more rigid than vinyl and can better mimic the look of painted wood, making them a premium, long-lasting option. ⁷

Glass and Glazing: This is where the core efficiency technology lives.

• Double vs. Triple Pane: Double-pane windows with an air or gas space between the panes are the standard and provide a significant upgrade over single-pane. For maximum energy savings and noise reduction, triple-pane windows offer superior insulation, which can be particularly valuable during harsh winters. ^{7 10 11}
• Low-E Coatings: Low-emissivity (Low-E) coatings are microscopic, virtually invisible layers of metal oxide applied to the glass. They reflect infrared light, helping to keep your home cooler in the summer by reflecting exterior heat and warmer in the winter by reflecting interior heat back inside. ^{10 12 11}
• Gas Fills: The space between panes is often filled with inert gases like argon or krypton. These dense gases are poorer conductors of heat than air, further reducing thermal transfer and improving the window's overall insulating value (U-factor). ¹¹

Understanding Performance Ratings: Look for the National Fenestration Rating Council (NFRC) label.

• U-Factor: Measures the rate of heat loss. The lower the U-factor, the better the window insulates. Prioritize a low U-factor for St. Louis winters. ^{10 12}
• Solar Heat Gain Coefficient (SHGC): Measures how much solar radiation enters through the glass. A moderate SHGC is often ideal for St. Louis, allowing some passive solar heat in winter but reducing excessive heat gain in summer. ^{10 12}

The Professional Window Installation Process

A proper installation is just as critical as the quality of the window itself. A meticulous process ensures optimal performance, prevents water infiltration, and maintains your home's structural integrity. ^{13 14}

1. Initial Consultation and Measurement: A reputable installer will visit your home to discuss your goals, assess the condition of existing windows and frames, and take precise, custom measurements for each opening. This step is crucial for ensuring a perfect fit, especially in St. Louis's many historic or older homes. ^{13 15}
2. Careful Removal of Old Windows: The crew will carefully remove the existing sashes and frames, taking care to minimize damage to the surrounding interior and exterior trim and sheathing. This step often reveals hidden issues like rot or insect damage that must be addressed before proceeding. ^{13 14}
3. Preparation and Installation: The opening is cleaned and prepared. The new window unit is placed into the opening, meticulously leveled, and squared. It is then securely fastened through the frame into the surrounding wall studs, ensuring it is plumb and operates smoothly. ^{14 16}
4. Air and Water Sealing: This is a critical step for energy efficiency and preventing leaks. High-quality, low-expansion spray foam insulation or fiberglass insulation is often used in the gaps between the window frame and the rough opening. Exterior seams are then sealed with a durable, waterproof caulk to create a weather-tight barrier. ^{13 14}
5. Finishing and Cleanup: Interior trim (casing) is installed or replaced, and any necessary adjustments are made to the window's operation. The installers will test each window, clean the glass, and thoroughly clean the work area, leaving your home ready to enjoy. ¹⁶

Understanding Window Replacement Costs in St. Louis

The cost of a window upgrade project in St. Louis varies based on the window's size, style, material, glass features, and the complexity of the installation. Below is a general overview of average costs per window, installed. ^{17 18}

For a full-home project involving, for example, 10 windows, total costs generally range from $3,000 to $10,000 or more. ¹⁷ It's important to note that prices can be higher for custom shapes, historic replication, or complex installations like large bay windows. The most accurate way to understand the investment for your specific home is to consult with experienced local window installation professionals who can provide detailed, written quotes. ^{17 19}

Benefits Beyond Energy Savings

While energy efficiency is a major driver, new window installation offers several other compelling benefits:

• Increased Home Value: An upgrade to modern, attractive windows is a visible improvement that boosts curb appeal and is often highlighted in real estate listings.
• Enhanced Comfort: Eliminate cold spots near windows in winter and reduce solar heat gain in summer, creating more consistent room temperatures.
• Noise Reduction: Multi-pane windows with gas fills and quality seals can significantly dampen exterior noise from traffic, neighbors, or weather.
• Reduced Maintenance: Modern materials like vinyl and fiberglass require far less upkeep than traditional wood, which needs regular painting and sealing.
• Improved Safety and Operation: New windows feature modern locking mechanisms and open smoothly, enhancing home security and ease of use.

Frequently asked questions

Sources