Installation Advice for Window Treatments from the Experts


After giving it some thought, you’ve chosen a set of window coverings for your home. It will be a delight to use your brand-new window coverings, but only after they have been placed correctly.

To share the expertise and knowledge of our professional staff on installing window coverings, Portland Window Coverings has put together this article.

Check your window measurements

Even though it might not seem difficult, measuring a window for a cover involves many steps.

Hiring a professional is our best suggestion for getting accurate window covering dimensions. Every window needs a specific fit, whether for blinds, blackout shades, or curtains. We take great pride in our measurements’ accuracy and our designers’ knowledge here at Portland Window Coverings. If you choose to use your measurements, bear the following in mind:

Inside-mount measuring

These window treatments are fitted inside the frame to give your space a polished, classic look. With exposed window frames, they look amazing and save room. When putting window coverings within a window, it’s critical to calculate the following dimensions carefully:

  • Frame depth.
  • Window size.

We advise measuring the window’s height, breadth, and depth to obtain an accurate width. Choose the narrowest width option available here. Choose the longest length metric from the available options.

Measuring for exterior mounts

Perhaps you put blackout drapes in your bedroom because you desired complete darkness. Maybe you’re going to put in braided wood door shades. Window coverings that are installed on the exterior of the building are beneficial in both of these scenarios. The practice of mounting window coverings outside the window casing is known as “outside mounting.” They can be used to cover shallower windows, block out the sun, or hide ugly window trim. Blinds and shades can be raised to their full height when mounted externally, above the window trim, without covering too much of the window. Getting the right measurements for placing window coverings on a building’s exterior entails the following:

  • Measure the window’s width. Add 1-2 inches to the window frame’s width on each side.
  • Choose where the window headrail goes.
  • Measure how far down you want the window covers from the headrail.


If you have chosen to use curtain rods, first choose where they will be installed. Your curtain rod should extend three to six inches beyond the window on either side if it has an exterior mount.

Following completion of this, you should measure the following:

  • Window size.
  • Curtains’ width and height.

If you’re unclear about what size to acquire, pick drapes at least twice as wide as your window. Doing this will ensure that the curtains completely cover your window.

If you don’t double-check the total number of panels when ordering curtains, it’s easy to make a mistake. It’s critical to understand whether the curtains you’re getting come in a set or are sold separately.

When installing any window treatment, it’s important to double-check your measurements carefully. In this manner, you can guarantee that the window covering is installed properly (and add an unnecessary drill hole to your wall or window). Budget Blinds of Escondido, CA brings the showroom to you, accurately measures your windows, and installs your blinds, shades, shutters, and much more.

Preparing tools

We can all relate to the excitement of a long-awaited delivery reaching its destination. Will you be ready when the window coverings arrive to install them? Get ready to go by gathering your hardware and materials. The following supplies should be available while installing window coverings:

  • Drill.
  • Level.
  • Screwdriver.
  • Stepladder, stool.
  • Anchoring drywall (if not drilling directly into a stud).
  • Tracer (if needed).
  • Tape measure.
  • Pencil.

If you’ve chosen curtains as your window treatment, make sure you have a curtain rod, hardware, finials, and any grommets or rings you’ll need to hang them.


Even though it isn’t nearly rocket science, it might as well be. Before beginning the installation, read the documentation. To make sure you have all you need, spread out your resources. Read the manufacturer’s comprehensive instructions after that. Your window covering installation will take less time, and you’ll be sure to complete the tasks in the correct order.

Expand small windows

You can do a few easy things to enlarge the little windows in your house.

Extend curtain rods to widen tiny windows

A quick and easy way to provide the appearance of extra space in a room with a window that is smaller than intended is to extend the curtain rod. By extending the rod 6 to 10 inches on either side, you may make your drapes or curtains entirely cover the portion of the wall next to your window. This creates a trick of the eye that makes the window look smaller and blocks the view.

Raise curtain rods for taller windows

Similarly, if you increase your curtain rods, it will appear as though your windows are farther apart. The desired look can be achieved with floor-length curtains and a curtain rod hung about two inches from the ceiling or ceiling molding.


It is both practical and attractive to add additional layers of window covering. A quick way to improve privacy and a room’s visual appeal is to layer curtains over blinds or another set of drapes. It’s a terrific idea to highlight the window’s stylish design rather than draw attention to how small it is.

Expert advice

It may take a lot of work to install window coverings properly, and if you don’t, it could cost you a lot of time, money, and effort. If you want the task done right, you should always hire a professional. If you want, we may meet you at Portland Window Coverings. To begin with, we’ll help you remove any doubt about choosing the best window coverings for your house. 

Over 25 years have passed since our interior design team began working with locals in the Portland region. Our thoroughness, knowledge, and dedication to your satisfaction will astound you. We always take two measurements before making a single cut since getting the ideal fit is crucial. The best thing is that installation is always included in our prices.


Contact us right away to arrange your online consultation with a consultant. We are happy to work with you and look forward to the opportunity.


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