How to Measure Retrofit Windows in San Diego

Window replacement is an investment that pays off over time. New windows can improve your home's look, value, and energy efficiency. But you’ll need accurate measurements to start, even if the replacement windows are the same size as the old ones. We recommend hiring a professional to perform correct measurements, although you can estimate window size in a few simple steps. Here’s how to measure retrofit windows in San Diego.

How to Take a Proper Measurement

A tape measure is all you need to measure window size. Take your time to ensure your measurements are right, and follow these steps:

• Check for Square Alignment: Despite variations in size, all windows have 90° corners. You can check for square alignment by starting at the top right corner. Hold one end of the tape measure there, extend it diagonally to the lower left corner, and record the measurement. Next, measure the distance from the upper left corner to the lower right corner. Both values should be within ¼ inch of each other; otherwise, the frame will need to be squared up.

• Measure the Window Width: Dimensions for standard windows are always expressed as width x height. Start by raising the window sash and measuring the width from the inside jamb, excluding any trim. Place a tape measure horizontally between both sides on the bottom. Next, take the same measurement in the middle of the window and then at the top. The shortest measurement is the true window opening width. 

• Measure the Window Height: Your measurements should be taken from the head jamb at the top to the sill at the bottom (at the tallest part of the window). The sill is where the sash rests. Start by measuring the height on the left side of the window. Then measure at the center and on the right side. The smallest number is the window opening height you will use.

• Measure the Window Depth: Depth is typically not a major factor in how to measure retrofit windows in San Diego. But too narrow a window opening can be a problem. When measuring the window jam, make sure it’s at least 3¼ inches deep.

Tips for Measuring Retrofit Windows

Measuring single-hung, double-hung, and sliding windows and recording numbers is quite simple. Here are some additional tips to ensure your readings are as accurate as possible:

• Measure Each Window Individually: Windows may appear the same but be slightly different in size from one another. A one-size fits all approach to window replacement will not work.

• Non-Standard Windows: If the window is non-rectangular or arched, measure from the top center of the window down the middle of the frame to the bottom. Add ½ inch.

• Measure Three Times: A slight error can create big problems later. Measure your windows at least three times, starting from scratch each time. If you get two identical measurements, throw the incorrect one out.

• Don’t Remove the Existing Window: You can take accurate measurements with the window in place. A replacement window may need to be custom-made, so removing the existing one may leave you windowless for a while.

• Measuring Awning/Casement Windows: Measure the width from trim to trim at the center and the height vertically from trim to trim. 

• Measuring Bay/Bow Windows: Measure the width and height of each window panel individually. The center window may have different measurements than the others.

Once you have window measurements, you can start shopping around. Take your numbers to a window dealer for your quote. They can also assist you in finding the right replacement windows for your home.

A Dealer Knows How to Measure Retrofit Windows in San Diego

Window World of San Diego has your exterior remodeling needs covered. We help plan home improvement projects and consider window size, design, and options very carefully. Our team specializes in standard window types and can accommodate custom shapes and configurations. Continue browsing to learn more about our energy-efficient windows or call (760) 230-8909 for assistance.