20 Best Window Companies in Lexington, MA (2025 Reviews)

How Installing Energy-Efficient Windows in Lexington Saves You Money

When you switch to energy-efficient windows, you may see several perks, including:

• Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 139 pounds per year on average.
• Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
• Save money on energy bills: After you install energy-efficient windows, you can expect a reduction in your bills by about 12% since you’ll use less energy to heat or cool your home.
• Protect your investment: When you have an older home, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its value.

Estimated Cost of Window Replacement in Lexington

When researching window installation, each company offers different services and costs. Let’s take a look at some average costs and services.

How Much Do New Windows Cost?

According to our market research, the average cost to replace a single window is around $600. However, window replacement costs can range from $200 to $1,200 a window. How much it will cost depends on several factors, including number of windows, the location of your home, type, material, size and more.

It’s also worth noting that energy-efficient windows will typically cost more upfront, but Energy Star estimates that upgrading the windows on your Lexington home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 per 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.

The cost of your window installation will also vary depending on the kind of material you choose for the frames. Wood windows are generally the most expensive, although it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.

What Services do Window Installers Offer?

The first step when considering a window installation is to clarify whether you should get a full-frame or pocket installation.

Full-frame installations entail replacing the full window, including the sill, frame and trim. You most likely need a full-frame installation when you want a new style or your window has noticeable rot or deterioration. These installations are more involved and will raise the overall cost. Pocket installations are simpler and won’t carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage or rot, you may have to get a full-frame installation instead.

Your window installer should be able to help you choose which type of installation you need.

How We Choose the Best Window Installers in Lexington

EcoWatch reviews differ from other reviews, as we assess these companies through a sustainability lens. We have decided to evaluate the top window installers in Lexington mostly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve the Lexington area so you can find the best window installation company near you.

Work Quality

When it comes to new windows, the quality and variety of services often plays 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 factor in workmanship as reflected in customer feedback.

Customer Reviews

We analyzed patterns in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it reflects the quality of services across most other categories, including quality of parts, warranty, quality of installation, professionalism, cost and more.

Cost

This one is a give-and-take: as with most services, cheap window companies may not provide the most quality service. On the other hand, we want to make sure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed previously, windows are a sizable investment, so you’ll want to make sure that investment is protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Because of Lexington’s climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of Lexington window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.