6 Things You Need to Know Before Installing New Windows

Corroded, worn-out windows could be hindering your lifestyle or the resale value of your property. And while it’s a daunting task, real estate experts say it’s a worthwhile investment.

“Windows can add significant value to a home, both in terms of energy efficiency, noise reduction, and overall visual appeal,” says Lindsey Harn, a residential real estate agent and owner of Lindsey Harn Group in San Luis Obispo, California. “Large, bright windows and sliding glass doors that maximize natural light can make a home feel more open and inviting. These features often help a property show better and can contribute to a higher sale price.”

Gerson Seise of Gerson Seise Realty in Laguna Beach, California, agrees, adding that people out West need to pay close attention to the type and quality of the windows they choose. 

“The right window for a coastal Southern California property may be very different from what someone needs in a cold climate with snow, ice, or extreme temperature swings,” he says. “In coastal areas, materials that resist moisture and corrosion may be especially important.”

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To learn more about window replacements, I spoke with Daniel Argento, a sales representative at Sierra Pacific Windows in Irvine, California.

1. Locate the Areas That Need Extra TLC

Argento notes that while some of his clients purchase all new windows, others take a less exhaustive approach. “Sometimes, they’ll just do portions of their home,” he says. “It’s usually the areas getting more sun, wind, or rain.” 

2. Map Out Your Dream Install

Before you make any big decisions, think through your vision. Maybe you want to replace your old windows with a luxury bifold door for more indoor-outdoor flow. Or perhaps you simply want an upgraded version of the same size and look of your existing windows. Argento says roughly 40 percent of his clients have made some sort of change to their home’s layout, while around 60 percent remain loyal to their original aesthetic. 

3. Make Sure You’re Complying with Building Codes

Your dream layout may look perfect, but it might not comply with the International Residential Code (IRC), a building code adopted by 48 states. IRC states that you must have egress windows with a clearing of at least 5.7 square feet, or exit doors, in case of an emergency.

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4. Identify Your Budget

As you’re discussing your goals, you’ll need to factor in pricing—for both the windows and labor. Sierra Pacific is a direct-to-consumer manufacturer, which makes them price-competitive, but on the higher end of the market. On average, Argento says windows can cost anywhere between $1,200 to $8,000 each, and more luxe details like bifold doors can cost as high as $1,200 per lineal foot. 

Bifold doors come in two main types: accordion-style or multi-slide doors that stack. “Bifolds are more expensive, mainly because of the hardware, and the door is hung above on a track with the wheels on top,” he explains. “On multi-slide doors, the wheels are on the bottom, and it’s a lot less expensive.”

Another way to save could be replacing your home with vinyl windows that have flanges on the outside, which is far less invasive, but Argento warns has a “cheesy” look. The best method is breaking the siding around your windows, replacing them, and restoring the siding. 

5. Find an Experienced Contractor

Once you’ve determined the look and style of windows you want, you’ll need to hire a contractor to take on the install. Though it depends on size and type, Argento says labor can cost between $2,000 and $4,000 per window and a contractor can make or break your experience. While he has a list of preferred contractors he recommends to clients, some opt for a more affordable contractor who may not have the same level of experience—which could dip into their budget even more.

“It’s not always that easy,” he warns. “If you hire a contractor who’s never done a window or door install before, you’ll probably get change orders. You never know when you open the walls and see what needs to be done.”

A trained professional also comes in handy for keeping your home clean and organized. Talk about strategy when you’re interviewing contractors, and see how they’ll move and protect your furniture before getting to work. 

6. Expect Delays, Especially in a Multi-Story Home

Argento says that as with many other remodeling projects, the timeline will likely shift. That’s almost guaranteed with a multi-story home. “It takes probably two to three times longer with a second-story home because you’re working with ladders and safety equipment, and working on a roof that needs to be protected during construction,” he says.

Post-install, Argento reminds us to take care of our windows. “Windows are low-maintenance, but they’re not no maintenance,” he says. “Wash your windows quarterly, or even more regularly if you live close to the ocean.”