20 Best Window Companies in Manassas Park, VA (2025 Reviews)

How Installing Energy-Efficient Windows in Manassas Park Saves You Money

Energy-efficient windows can offer benefits in more than one way. Here are some reasons you may want to think about making the switch:

• Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
• Protect your investment: When you have an older home, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
• Save on energy bills: Once you upgrade to energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll require less energy to heat or cool your home.
• Decrease your carbon footprint: In Manassas Park, you can lower your indirect greenhouse gas emissions by about 376 pounds per year after you upgrade to energy-efficient windows.

Estimated Cost of Window Replacement in Manassas Park

Windows come in different styles, shapes and purposes, so costs and services will differ remarkably depending on your project. Below, we detail the typical cost and services that you’ll find from window installers.

How Much Do New Windows Cost?

Although the national average cost of replacing a single window is around $600, it can range anywhere from $200 to $1,200. These estimates vary depending on the specifics of your installation, including material, type, the location of your home, number of windows, size and more.

It’s also worth keeping in mind that energy-efficient windows will typically cost more initially, but Energy Star predicts that switching out the windows on your Manassas Park home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you’ll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

Something else that influences the total cost is the material of the frame you choose. Aluminum frames are generally the least expensive and are sturdy and light, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

There are typically two kinds of window replacement services: full-frame and pocket installations.

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

If you’re not sure which type of window installation service you need, your installer should be able to advise you. Typically, the choice is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.

How We Choose the Best Window Installers in Manassas Park

EcoWatch reviews differ from other reviews since we assess these companies through a sustainability lens. We’ve evaluated the best window installation companies in Manassas Park mainly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Since this is a guide for Manassas Park, we paid more attention to companies that provide services to the city. There are other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Manassas Park.

Work Quality

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

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. If most customers don’t have nice things to say about their experience with a certain window installation company, you won’t see it featured on EcoWatch.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

As discussed, windows are a significant investment, so you’ll want to make sure that investment is well protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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