7 Best Window Types for Apartment Replacements

Picture of Gideon Ge | Founder of Vallisco

Gideon Ge | Founder of Vallisco

Hi, I’m Jason Dong, sharing practical know-how from decades in CNC and prototyping.

Table of Contents

I’ve spent years working on window projects, and I’ve learned something important some windows look nice at first but don’t hold up over time. In apartments, you need a balance between how the window looks and how well it works. Not every style can give you both.

Replacing your windows is about finding that sweet spot good style, real comfort, and a fair price. You shouldn’t have to give up one to get the other.

I’ve been part of many apartment upgrades and building renovations, watching how different window styles handle everyday use, bad weather, and years of wear. The advice I’m sharing here comes from seeing what actually lasts.

In this guide, we’ll go through seven window styles that work especially well for apartments. You’ll see how they compare in design, function, and long-term value for your space.

If you want to make this replacement the last one you’ll need for a long time, you’re in the right place.

So let’s get down to it!

Quick Comparison Chart

Before we dive deep into each style, here’s a snapshot to help you see how they stack up. Think of it as your quick-reference guide so you can spot which designs might be calling your name.

Window TypeKey BenefitsNot Ideal ForBest Use Cases
Sliding WindowsSpace-saving design; smooth operation; wide glass area for light and viewsSpaces needing maximum airtight seal; areas where tracks may collect a lot of debrisHigh-rise apartments with balconies; hotels and serviced apartments; villas or B&Bs with wide openings
Double-Hung WindowsFlexible ventilation; classic look; easy cleaning with tilt-in featureLocations with strong winds; projects where minimal maintenance is a priorityMulti-story apartments; boutique hotels; renovation projects matching historic styles
Casement WindowsMaximum airflow; tight weather seal; clear, unobstructed viewsTight outdoor spaces where the sash swing would block walkways or furnitureCoastal apartments; villas and inns; side walls with no obstructions
Awning WindowsAllows ventilation during rain; privacy-friendly; compact footprintMain living areas needing large airflow; locations where outward swing is blockedBathrooms and kitchens; hotels in rainy regions; greenhouses and utility areas
Picture Windows (Fixed)Uninterrupted views; low maintenance; strong insulation with proper glassRooms needing ventilation; hot climates without upgraded glazingHigh-rise apartments with scenic views; luxury hotel suites; villas and resorts with gardens or landscapes
Bay and Bow WindowsAdds interior space; more natural light; distinctive styleProjects with limited wall structure; tight budgets due to higher installation costCorner apartments; ground-floor hotel suites; villas or inns
Soundproof & Energy-Efficient GlassReduces noise; improves insulation; increases comfortVery tight budgets; projects where noise and temperature control are not concernsCity apartments near traffic; hotels near airports or event venues; villas in harsh climates

Now that you’ve seen the overview, let’s look closer at each type starting with the most common ones.

1. Sliding Windows: A Simple, Space-Saving Option

Sliding windows are one of the simplest and most space-friendly designs you can choose. I’ve seen them make a big difference in apartments where every inch of room counts. They’re also a style many people keep for years because they’re easy to live with and fit seamlessly into different layouts.

How It Works

  • Sliding Mechanism: One or more sashes move sideways along a horizontal track in the frame. Rollers inside the track help the panels glide smoothly with little effort.
  • Panel Overlap: When closed, the panels overlap to create a seal that reduces drafts. This design still allows quick, easy movement when you want fresh air.
  • Frame Structure: The frame is fixed in place, so no part of the window swings inward or outward. This keeps the surrounding space clear at all times.

Key Benefits for Apartments

  • Space Efficiency: Since the panels don’t swing open, you can place furniture or decorations close to the window. This is especially useful in small apartments or tight layouts.
  • Ease of Use: Even larger panels are simple to operate with one hand. That makes them accessible for children, older residents, or guests unfamiliar with the space.
  • Natural Light and Views: Wide glass panels allow more daylight into the room. They also give you a broader view of the outside compared to some hinged designs.

Best Use Cases

  • High-Rise Apartments: Works well with balcony doors or combined window-wall designs. This setup improves access to outdoor spaces without blocking walkways.
  • Hotels and Serviced Apartments: Offers an intuitive opening style for guests. They don’t require any special instructions to use.
  • Villas and B&Bs: Fits well in wide openings where scenic views are part of the appeal. Guests can enjoy the view without obstruction.

Final Thoughts

Sliding windows are practical, bright, and easy to operate in spaces where swing clearance is a problem. The only limitation is that the track can gather dirt over time, which means occasional cleaning is needed to keep them running smoothly. Vallisco offers sliding window options that combine smooth operation with durable materials, making them a smart choice for long-term use.

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2. Double-Hung Windows: Classic Look with Flexible Airflow

Double-hung windows have been around for generations, and for good reason. I’ve replaced these in older apartments and also installed them in brand-new buildings. They have a classic look, but what makes them truly stand out is how they work.

How It Works

  • Two Moving Sashes: Both the upper and lower sashes slide vertically within the frame. You can open just the top, just the bottom, or both at the same time.
  • Counterbalance System: Springs or hidden weights help hold the sashes in place. This makes the movement smooth and prevents them from slamming shut unexpectedly.
  • Tilt-In Feature: Many modern double-hung windows allow each sash to tilt inward. This makes cleaning the outside glass much easier, especially on upper floors.

Key Benefits for Apartments

  • Flexible Ventilation: You can open the top sash to let out warm air while keeping the bottom closed for safety. This is especially useful in apartments with children or pets.
  • Classic Appearance: The balanced design works well in many building styles. It blends into both traditional and modern apartment exteriors.
  • Easy Maintenance: The tilt-in feature lets you clean both sides of the glass from inside. This is a major time-saver for multi-story buildings.

Best Use Cases in B2B Projects

  • Multi-Story Apartments: Allows safe cleaning from inside without ladders or scaffolding. This reduces maintenance risks and costs.
  • Boutique Hotels: Offers a timeless style that fits historic or upscale properties. Guests appreciate the fresh-air option without mechanical systems.
  • Renovation Projects: Matches older architecture while upgrading performance with modern materials.

Final Thoughts

Double-hung windows give you flexibility, style, and easier upkeep in one package. However, the extra moving parts mean they require occasional maintenance checks to stay in good working order. If you want a blend of function and tradition, this design can work beautifully in your apartment replacement project.

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3. Casement Windows: Strong Seal and Fresh Air

Casement windows are one of my favorite choices for apartments that need strong airflow and a tight seal when closed. I’ve seen them transform stuffy rooms into bright, breezy spaces. They open wide, which makes them great for catching the wind and letting in fresh air.

How It Works

  • Side Hinges: Casement windows are attached to the frame with side hinges. The sash swings outward like a door when you turn the handle.
  • Crank or Lever Operation: A crank or lever mechanism makes it easy to open the window to the exact angle you want. This also helps pull the sash tightly against the frame when closing.
  • Compression Seal: The edges of the sash press firmly against the frame when shut. This creates a tight seal that helps reduce drafts and improve insulation.

Key Benefits for Apartments

  • Maximum Ventilation: When fully opened, casement windows let in more air than many other styles. This makes them perfect for rooms that get hot or stuffy.
  • Strong Weather Protection: The compression seal helps block rain and wind, keeping the interior more comfortable.
  • Clear Views: With no middle rail across the glass, you get an unobstructed view outside.

Best Use Cases in B2B Projects

  • Coastal Apartments: Provides strong protection from wind-driven rain while allowing breezes when weather permits.
  • Villas and Inns: Ideal for locations that benefit from natural ventilation to reduce reliance on cooling systems.
  • Side Walls With Open Space: Works best where the outward swing will not block walkways or other structures.

Final Thoughts

Casement windows offer excellent airflow and sealing performance in one design. However, you do need to plan for the space they require to swing open, which can limit placement in tight areas. If you have the clearance, they can be one of the most comfortable and attractive window options for your apartment replacement project.

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4. Awning Windows: Ventilation, Even When It Rains

Awning windows are a smart choice when you want ventilation without giving up weather protection. I’ve seen them work especially well in apartments where privacy and airflow both matter. They may be smaller, but they offer features that many larger windows can’t match.

How It Works

  • Top Hinge: The sash is hinged at the top and swings outward from the bottom. This creates a sloped opening that works even in light rain.
  • Manual or Crank Operation: You can push the sash open by hand or use a crank for more control. The crank holds the window steady at your chosen angle.
  • Weather Protection: The outward slope directs rain away from the opening, keeping the interior dry while still allowing air to flow in.

Key Benefits for Apartments

  • Ventilation During Rain: Lets you keep the window open during light rain without water entering.
  • Privacy-Friendly Placement: Works well high on walls, allowing airflow without giving up privacy.
  • Space Efficiency: Small and compact, fitting into tight spaces where larger windows may not be practical.

Best Use Cases in B2B Projects

  • Bathrooms and Kitchens: Helps remove moisture and odors while maintaining privacy.
  • Hotels in Rainy Regions: Gives guests fresh air even during wet weather.
  • Greenhouses and Utility Areas: Improves airflow in small or enclosed spaces without large openings.

Final Thoughts

Awning windows bring a smart mix of privacy, weather protection, and ventilation. However, their smaller size means they may not provide enough airflow alone in larger rooms. When paired with other window styles, they can be a valuable part of an apartment replacement plan.

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5. Picture Windows (Fixed Windows): Bring in the Light, Frame the View

Picture windows are all about bringing the outside in. I’ve installed them in apartments with stunning city or landscape views, and the effect can be breathtaking. They don’t open, but they excel at letting in light and creating a sense of space.

How It Works

  • Fixed Glass Panel: A large pane of glass is sealed into a frame that does not move. This creates a secure and airtight design.
  • Framing Options: Can be built with aluminum, wood, or uPVC to match the building’s style. Slim frames help keep the focus on the view.
  • Sealed Construction: Prevents air and water leaks, improves insulation and energy performance.

Key Benefits for Apartments

  • Uninterrupted Views: With no middle rails or moving parts, you can enjoy a clear, wide-angle view outside.
  • Low Maintenance: No hinges or sliders to clean or repair, so upkeep is minimal.
  • Energy Performance: Works well with double-glazing or coated glass to help control indoor temperatures.

Best Use Cases

  • High-Rise Apartments: Perfect for showcasing city skylines or waterfront views.
  • Luxury Hotel Suites: Gives guests a panoramic view and a sense of openness.
  • Villas and Resorts: Frames gardens, pools, or landscapes to enhance the room’s appeal.

Final Thoughts

Picture windows deliver unmatched views and abundant natural light. However, since they can’t open, you’ll need other windows for ventilation. If your goal is to highlight scenery and brighten a space, this style can be an impressive addition to your apartment replacement plan.

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6. Bay and Bow Windows: Add Space, Light, and Style

In many apartment projects I’ve worked on, bay and bow windows have been the feature that catches everyone’s attention first. They extend outward from the wall, creating extra space inside and adding depth to the exterior. Both styles bring in light from multiple angles, which can make a room feel bigger and more inviting.

How It Works

  • Multi-Panel Construction: Bay windows usually have three panels, while bow windows have four or more in a curved arrangement.
  • Projection From the Wall: Extends beyond the exterior wall to create an interior alcove. This can be used for seating, storage, or decoration.
  • Framing and Sealing: Built from materials like wood, aluminum, or uPVC, with joints sealed to prevent drafts.

Key Benefits for Apartments

  • Added Interior Space: Creates an alcove that can serve as a reading nook, display area, or extra seating.
  • Enhanced Natural Light: Multiple angles allow sunlight to enter throughout the day.
  • Architectural Appeal: Adds a distinctive style both inside and outside, potentially increasing property value.

Best Use Cases

  • Corner Apartments: Maximizes light and view potential by using two exterior walls.
  • Ground-Floor Hotel Suites: Offers guests a spacious feel and an area for relaxation.
  • Villas or Inns: Enhances the building’s charm and allows more interior design flexibility.

Final Thoughts

Bay and bow windows offer beauty, light, and additional space in one feature. However, they require more structural support and a higher budget compared to flat window designs. When planned well, they can become the highlight of an apartment replacement project.

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7. Soundproof and Energy-Efficient Glass Options: Upgrade What Matters Most

In busy city apartments or properties exposed to extreme temperatures, the type of glass you choose can be just as important as the window design itself. I’ve seen projects where simply upgrading the glass completely changed the comfort level inside. This option focuses on reducing noise, improving insulation, and making indoor spaces more pleasant year-round.

How It Works

  • Double or Triple Glazing: Uses two or three panes of glass separated by air or gas-filled spaces. This slows heat transfer and blocks more sound than single-pane glass.
  • Laminated Glass: Contains a thin plastic layer between glass sheets. This layer absorbs sound vibrations and adds strength for better security.
  • Low-E Coatings: A special invisible layer on the glass reflects heat while letting light pass through. This helps keep interiors cooler in summer and warmer in winter.

Key Benefits for Apartments

  • Noise Reduction: Blocks or reduces outside noise from traffic, trains, or neighbors. This can make a noticeable difference in sleep quality and daily comfort.
  • Energy Savings: Helps maintain stable indoor temperatures, lowering heating and cooling costs over time.
  • Improved Comfort: Reduces cold drafts in winter and hot spots in summer, making rooms more enjoyable to use.

Best Use Cases in B2B Projects

  • City Apartments Near Busy Roads: Minimizes the impact of constant street noise on residents.
  • Hotels Near Airports or Event Venues: Creates a quieter guest environment, improving reviews and repeat bookings.
  • Villas in Harsh Climates: Enhances comfort by controlling indoor temperatures more effectively.

Final Thoughts

Soundproof and energy-efficient glass can completely change how a space feels, especially in noisy or weather-challenged locations. However, it comes at a higher upfront cost, so you’ll need to balance the comfort gains against your project’s budget. If noise control and temperature stability are priorities, this upgrade can be worth every dollar.

Final Tips Before You Choose Apartment Windows

Choosing the right window for your apartment replacement project takes more than just picking a style you like. You’ll want to think about how it will perform in your space every day.

  • Match Design to Room Needs: Consider how much light, ventilation, and privacy each room requires. A sunny living room may need heat-control glass, while a noisy bedroom could benefit from soundproofing.
  • Consider Maintenance Levels: Some designs have more moving parts and require occasional upkeep. Others, like picture windows, need less care but must be paired with operable windows for airflow.
  • Balance Cost and Performance: The most expensive design isn’t always the most practical choice. Sometimes combining a mid-range frame with upgraded glass gives better long-term results.
  • Look at Long-Term Benefits: Features that improve energy efficiency can lower utility costs over time. Windows that boost property value and comfort are worth the investment.
  • Think About Daily Use: Choose a style that feels easy to operate in your everyday routine. The right fit will make your space more enjoyable to live in.

I’ve seen projects where owners took the time to think through each of these points and ended up happy for years. Skipping these steps can lead to choices that look good but don’t feel right later. Vallisco offers durable, stylish options that work well for both residential and hospitality projects.

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Conclusion

You now know what each window type can offer and where it works best.

From soundproof glass in a city flat to picture windows in a villa, the possibilities are endless.

When I’ve helped others make these decisions, the ones who took action sooner enjoyed their new space faster.

Which design speaks to you? Which one will bring you more light, comfort, and value?

There’s no reason to wait.

Contact Vallisco today and let’s plan your next upgrade together.

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