20 Best Window Companies in San Marcos, TX (2025 Reviews)

How Installing Energy-Efficient Windows in San Marcos Saves You Money

Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on energy bills. Here are more details about how upgrading your windows could help you:

• Save money on energy bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% since you’ll need less energy to heat or cool your house.
• Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, leaky or maybe even damaged in some way. Updating your windows could help increase the value of your property if you decide to sell.
• Decrease your carbon footprint: In San Marcos, you can cut your indirect greenhouse gas emissions by about 507 pounds per year when you install energy-efficient windows.
• Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.

Estimated Cost of Window Replacement in San Marcos

Let’s go over the cost of replacing your windows and the types of services offered by installers.

How Much Do New Windows Cost?

Generally, homeowners in San Marcos can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost at about $600. How much it will cost varies based on several factors, such as material, type, size, number of windows, the location of your home and more.

It’s also worth noting that energy-efficient windows will almost always cost more upfront, but Energy Star predicts that switching out the windows on your San Marcos home can mean an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you’ll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

Another factor that influences the total cost is the material of the frame you choose. Aluminum frames are usually the least pricey and are sturdy and relatively maintenance-free, but they provide poor insulation. On the other hand, wood frames are the most expensive, as 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?

The first question to ask yourself when planning on installing new windows is: Do you want a full-frame installation or a pocket installation?

A full-frame installation replaces the complete window, such as the sill, frame, trim and the window panes. As this kind of installation is more involved, it will be more expensive than a pocket installation. A pocket installation involves replacing a window within the existing frame, which is generally cheaper than a full-frame installation.

Your window installation company should be able to help you decide what’s best for your needs. In San Marcos, the decision will mostly depend on the age of your windows and if there’s any moisture damage. Wood can decay if not maintained properly over the years, so it’s good to have a professional check on your frames and window sills.

How We Choose the Best Window Installers in San Marcos

In our hunt to find the most reliable, eco-friendly window installers in San Marcos, the EcoWatch Reviews team chose the above companies as the best window installation companies in the city. We have decided to assess the best window replacement companies in San Marcos primarily based on energy efficiency, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows have been shown to cut 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 San Marcos, we only included companies that cover the city. There are certainly reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in San Marcos.

Work Quality

When installing new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the brand you opt for. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

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

Cost

This one is a give-and-take: similar to most services, cheap window installers are not going to provide the most quality service. Still, we want to make sure 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 labor rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have been in the industry for quite some time. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.