14 Best Window Companies in St. George, UT (2025 Reviews)

How Installing Energy-Efficient Windows in St. George Saves You Money

There are several perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch are the following:

• Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
• Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help increase the value of your home if you decide to sell.
• Decrease your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 235 pounds per year on average.
• Save money on electricity bills: Switching to energy-efficient windows reduces your energy bills by about 12% because you need less energy.

Estimated Cost of Window Replacement in St. George

Each window replacement company provides various services and has different costs based on a few factors.

How Much Do New Windows Cost?

Generally, St. George homeowners can anticipate their window installations to range from $250 to $1,200. The average cost sits at around $600. How much it will cost varies based on several factors, like the location of your home, material, number of windows, size, type and more.

It’s important to note that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save St. George homeowners $340+ a year when replacing single-pane windows.

Something else that influences the overall cost is the material of the frame you pick. Aluminum frames are usually the least pricey and are sturdy and light, but they provide poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.

What Services do Window Installers Offer?

Generally, there are two kinds of window installation services companies provide: full-frame and pocket installations.

Full-frame installations involve replacing the full window, including the trim, sill and frame. You most likely need a full-frame installation when you want to change the style of your windows or your window has noticeable damage. Because these installations are more involved, they will raise the overall cost. Pocket installations are simpler and won’t cost as much because they involve merely replacing the window within its existing frame. But if the frame has any damage or rot, you should opt for a full-frame installation instead.

Your window replacement company should be able to help you figure out what’s best for your needs. In St. George, the decision will mostly be based on how old your home is and if there’s any damage. Wood can decay if it’s not properly maintained over the years, so it’s good to have a professional examine your frames and window sills.

How We Choose the Best Window Installers in St. George

In our hunt to find the most reliable, eco-friendly window installers in St. George, EcoWatch examined dozens of companies before deciding on these. We’ve assessed the best window installation companies in St. George mainly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Because this is a guide for St. George, we only included companies that cover the city. There are certainly other reputable providers that didn’t make the cut because of the low odds that they would serve the average homeowner in St. George.

Work Quality

When selecting new windows, the quality and breadth of services can often play just as important of a role in overall efficiency and performance as the brand of window you get. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

We analyzed patterns in recent customer feedback to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across nearly every category, including cost, warranty, professionalism, quality of installation, quality of parts and more.

Cost

This one is a give-and-take: similar to other services, cheap window installation companies are not going to provide the most quality service. Still, we want to ensure we’re highlighting companies that provide a variety of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. That’s why window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Due to St. George’s climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of St. George window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.