18 Types of Windows for Houses & Villas in 2026 (Function, Style & Cost Guide)

18 Main Types of Windows

Contrary to what the ordinary homeowner may believe, there are more or less 30 types of windows. Nevertheless, they can be categorized into 18 main types and it would be the following.

1. Single Hung Windows

The single hung is the classic window design and is very common still among classic style residential as well as commercial settings. It basically comes with a sash for opening and closing it.

On the upside, these classic style windows are perfect for small living spaces, affordable, easy to install, energy-efficient and easily matches interiors. On the downside, ventilation may be limited and maintenance is regular.

2. Double Hung Windows

This is considered as the American window. It is popular among American homes because of its functionality and practicality. Unlike the single hung, it comes with an upper and lower sash. As such, you can choose to open one window at a time.

Thus, on the upside, it offers more liberal ventilation, easier to clean, energy-efficient, versatile style-wise, affordable and good for limited spaces too. Perhaps the only downside is that it is not as airtight as the other window types.

3. Arched Windows

This is more popularly known as the cathedral style window. Just picture the standard church window and that is what you are looking at her, complete with those symmetrical sides and rounded types.

Standard arched windows cannot be opened; thus, it is typically installed as the second layer to a glass window, filtering light. Modern arched windows however, now come with encasements and can be opened.

4. Awning Windows

This one is commonly likened to hopper windows because of its tilting nature. However, it only tilts outwards and never inwards. With this, it gives the illusion of a widened room. Other upsides include energy-efficiency, better insulation, and good for avoiding snow and water pile-up.

On the downside, it is expensive and challenging to clean, especially the outer part of the window pane.

5. Bay Windows

This one has a unique hexagon shape making the window look embossed. They come in different types. As a matter of fact, the bow window is a variant of bay windows. Generally, it is a popular residential window type because of its unique appeal.

Other than this, its irregular shape both adds space to the room and offers a panoramic view of the outdoors. On the downside, they may potentially block outdoor space.Also, it could be very expensive in upfront cost, installation, and maintenance.

6. Bow Windows

This one is actually a variant of a bay window. Instead of a hexagon shape, this one comes in a curved shape, hence, looking like a bow. It also makes it larger than standard bay windows.

On the upside, it adds more interior space, looks more elegant, offers more installation and natural light and also gives a panoramic outdoor view. On the downside, it is hard to maintain plus, it is expensive upfront.

7. Casement Windows

This is a well-loved window type because of its flexibility. It opens sideways and top-down. Since they are almost always made of glass, they offer a clear and unobstructed view. Casement windows are very popular and consistently listed as one of the best choices for residential and commercial windows.

On the downside, casement windows may be costly to install and hard to maintain. As a matter of fact, depending on the glass used for its production, it could be mid-tier to very expensive in cost.

8. Egress Windows

When it comes to function and style, this one is a cutting-edge window type. They are usually installed in basements or function like a small fire exit door for emergencies. They offer superb insulation and are fairly low maintenance.

On the downside, they can be more expensive since installing them would require excavation. Some US states and countries even require building egress windows in home basements.

9. Garden Windows

As the name implies, this one is usually used in gardens and greeneries. They are often glass, transparent, which are intended for capturing sunlight in four angles. If natural light is what you are going for, and lots of it for that matter, this is the best type of window for you.

On the downside, installation might be challenging since a durable architecture is needed. Also, when installed incorrectly, it might obstruct the outdoor view.

10. Glass Block Windows

This one is a popular choice nowadays because of its functionality and aesthetics. These are basically frosted window panels, making the interior invisible from outside view. Thus, it filters unnecessary light while adding a layer of security and privacy to your home.

On the negative, they offer limited ventilation and may have the effect of distorted and scattered light.

11. Hopper Windows

This one is the prototype of tilting windows. It has a single stash casement and a hinged bottom, making it tilt inwards. Aesthetically, their horizontally rectangle look makes them perfect for modern and minimalist homes.

Other upsides include good insulation, high energy-efficiency and low maintenance. On the downside, it is not a good trapper of water during heavy downpours. It also limits privacy because of its inward tilting motion.

12. Jalousie Windows

This one is a prime choice when it comes to ventilation. They are known for their wooden or acrylic louvres and parallel glasses. They are very easy to operate as they could be manually closed, opened and tilted using a central lever.

In terms of aesthetics, it matches all types of classic and Asian interiors. It offers a lot of airflow even in snowstorms and heavy downpours. This is also due to its slanting degree. On the downside, it is not the sturdiest nor the most secure.

13. Picture Windows

If unique and high aesthetic value is what you are looking for, you should give picture windows a try. Once this one is installed, you can no longer change it. If you insist on changing it, nevertheless, you have to make substantial adjustments, which will cost you some bucks again.

In structure, its window pane is made of glass. The pane frames are installed to capture the outdoor scenery as if it was inside a picture frame. If you have vaulted ceilings, this is a good choice for you too. Function-wise, it offers high energy-efficiency and no window treatments are needed. On the downside, it does not give much ventilation.

14. Round Circle Windows

If Goth and classic Victorian is your style, this window type never gets out of style. Contrary to what the name suggests, it does not only come in perfect round shape. There are also oval, half-round and elliptical variants.

If you are one who likes to make a statement out of their windows, this is a good choice. In terms of functions, it is sufficient for natural light and enough ventilation. You have to understand, however, that this door type cannot be opened or closed.

15. Skylight Windows

If egress window is to basements, skylights are for attic rooms. These are popular window types because of their very high energy-efficiency and lots of natural light. Most especially, they provide unobstructed sky views offering good daylight usage and romantic star and sky views at night.

They are perfect for cabin homes, and accent windows. On the negative, they can be challenging to install and maintain. Also, they can be quite expensive.

16. Sliding Windows

These are very common in residential settings for all types of design and aesthetics. They come in single, double and three-panel sliders. Depending on the size of the home and width of the window space, you can choose freely from different types of sliding windows.

They are good for filtering light as some come tinted. However, they are not very good for ventilation and in stopping snow and rainwater from seeping in. They are low maintenance, however.

17. Storm Windows

This one is perfect for insulation. When installed, it keeps the home warm during winter and cooler during summer. Its other upsides include easy installation, affordability, and high energy-efficiency.

On the downside, it is not applicable for wooden exteriors nor wooden frames. Its window layers produce moisture from condensation, damaging the wood if ever. It is also very high-maintenance.

18. Transom Windows

For statement windows with high aesthetic value, this is also the window type to go for. As a matter of fact, transom windows are the most common type of accent windows.

Classically, they first came out as fan-shaped but modern transom windows are flexible to any type of home interior and architectural designs. On the upside, they offer lots of ventilation, natural light and good insulation. On the downside, they may be installed expensively and are hard to clean.

There are other types of windows that are not mentioned here. If you want to explore more options, you can always search for the other window types not listed here.