When it comes time to replace your blinds or shades, the precise sizing and placement of your window treatment in relation to your window is one factor that matters in how a window treatments looks and feels in a space. One common question we get about installations of window blinds: inside vs. outside mount.

And that makes sense, because the choice really influences the final result. The best decision isn’t the same for everyone; it depends on variables like required light control and the window trim. Our team at Jackie & Bill’s Drapery & Interiors will give you the best advice for how to install your window blinds. Read on to learn how we help make this choice.

Inside vs. Outside Mount: The Inside Approach

Inside mount blinds fit within the window frame, for a clean, built-in look that shows off your trim. This strategy suits small rooms; the blinds or shades stay tucked inside the profile of the window, leaving you more wall space. We also recommend this for windows above sinks, and any other window where you want a streamlined aesthetic and want to see the window’s frame.

There are a few cons, starting with light leaks. Because the blinds sit inside the frame, you'll likely have gaps around the edges where sunlight sneaks through. Additionally, inside mount blinds won’t hide window trim imperfections.

Inside vs. Outside Mount: The Outer Edge

Outside mount blinds attach to the wall surfaces around a window frame, extending beyond the opening on all sides. This approach blocks light more effectively because the blinds overlap the frame rather than sitting inside it. You also get the illusion of larger windows; this installation makes the frames seem wider or taller.

These installations work best on wider, taller walls, where the window treatments shouldn’t overwhelm the space. Bear in mind that outside mount blinds extend out from the window frame, so you might have need of a discreet deader or top treatment to hide any visible hardware. This also may mean less room for wall decor and other furniture, as the treatment will protrude slightly into a space.

Window Blinds Inside vs Outside Mount for Different Rooms

Sometimes, but not always, the best mounting choice depends on what room you're working with. Think of it this way:

• Bathrooms: Small bathroom windows can show more personality with inside mounting. This fitted appearance keeps compact spaces feeling open while showing off trim.
• Kitchens: Inside mount works great above sinks; the blinds stay out of the way when you're working.
• Bedrooms: Outside mounting wins here. Light sleepers may appreciate that extra coverage to block early morning sun. Gaps around inside-mounted blinds might wake you up at 6 AM and can be covered with drapery or side panels.
• Living rooms with picture windows: Go with outside mounting. It makes living room windows appear more substantial, eliminates light gaps, and offers better privacy control.
• Media rooms and nurseries: Room darkening matters most in these spaces, so outside mounting is the smarter call.

Professional Measuring for Inside vs. Outside Mount Blinds

Inaccurate measurements cause most blind installation problems. For example, even a quarter-inch mistake with inside mounting means your blinds won't fit properly.

Jackie and Bill's Drapery & Interiors installation team members measure flawlessly, account for obstructions like window cranks, and check frame squareness before recommending the best approach. For inside installations, we measure width at several points and verify you have the clearance needed.

Outside mount installations require precise bracket placement to hang level and operate smoothly. We also handle those technical details, so you can focus on the fun part: selecting colors, materials, and styles.

Let Us Help You Decide About Inside vs. Outside Mount Blinds

Now that you understand these two approaches, we can help you start your window treatment project. We look forward to meeting you!

Visit our showroom or contact us for a consultation at our showroom in Wichita, KS. We also serve the surrounding areas, including Andover, Cheney, Derby, Goddard, Hutchinson, Maize, Augusta, Bel Aire, and Newton, Kansas.