20 Best Window Companies in Westminster, MD (2025 Reviews)
Are you looking to replace your windows? Our guide to the top window installation companies can help you narrow down which one to choose.
We analyzed all the top-rated window companies in Westminster and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A review of the best window installation companies in Westminster may not seem like the most captivating article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might think. Potential leaks or drafts from your windows can make your home uncomfortable in the summer or winter.
That’s not great for either your wallet or the environment, but one of the top window installation companies can help with that.
So if you’re building a new home, renovating or replacing your windows in Westminster, this is the best place to get started.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Westminster
The EcoWatch team examined dozens of window installation companies in Westminster to find the top ones for our readers. The installers mentioned in this article scored best in our review categories, such as energy-efficient offerings, price, local expertise, availability, customer service and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World offers windows expertise in Westminster. This window installation company has been operating since 1995 and currently services 200 locations nationwide. Many positive reviews from customers online back the company's reputation.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Westminster?Window World doesn’t have any pricing information displayed on its website, but it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen offers the best availability in Westminster. This window installation company has been operating since 1995 and currently services nearly every state except Mississippi and West Virginia. Many positive reviews from customers online back the company's reputation.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Westminster?Andersen doesn’t have any pricing information displayed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows offers the best window installation for businesses in Westminster. This window installation company has been operating since 1999 and currently services 13 states and Washington D.C. Many positive reviews from customers online back the company's reputation.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Westminster?Aeroseal doesn’t have any pricing information displayed on its website, but it provides high-quality windows at a competitive price point. You can ask for a free quote on its website for more information about the cost.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation offers the best residential windows in Westminster. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Many positive reviews from customers online back the company's reputation.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Westminster?Window Nation doesn’t have any pricing information displayed on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. You can ask for a free quote on its website for more information about the cost.
Please note that the companies in this section are national, which means the quality of the service may vary depending on your local team. We have tried to be unbiased and transparent by mentioning pros and cons for every provider.
More Window Companies in Westminster
Renewal by Andersen of the Capital Region
Jessup, MDGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Bay Windows
Glass Doors
Double-Hung
Skylights
Window Replacement/Installation
Champion Replacement Windows of Baltimore
Rosedale, MDGood Customer Service
Products made in the USA
Sunrooms
Price Transparency
Single-source accountability
Free assessment
Services Offered
Bay Windows
Double-Hung
Window Replacement/Installation
Glass Doors
Window Nation
Glen Burnie, MDEducational Website
Free assessment
Price Transparency
Services Offered
Triple Pane Glass
Window Replacement/Installation
Energy-Efficient Options
Bay Windows
Glass Doors
Vinyl Frames
Double-Hung
Custom Window Designs
Wood Frames
Garrety Glass - Betterliving Sunrooms
Cockeysville, MDTimely Service
Price Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Glass Doors
Mirrors
Glass Repair
Custom Glass
Window Replacement/Installation
Bay Windows
Glass Showers
AC Matthews, Roofing & Exteriors
Towson, MDPrice Transparency
Free assessment
High-quality materials
Energy-efficient windows
Good Customer Service
All-inclusive repair and maintenance
Educational Website
Services Offered
Window Replacement/Installation
Susquehanna Valley Door and Window
York, PAFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Glass Doors
Double-Hung
Obrebski Brothers Windows and Doors
Nottingham, MDFamily service
Free assessment
Lifetime guarantee
Financing options available
Educational Website
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Replacement Windows and Doors-Homerite Waynesboro
Waynesboro, PAGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Glass Doors
Glass Repair
Energy-Efficient Options
Window Replacement/Installation
KELEMER BROTHERS REPLACEMENT WINDOWS
Silver Spring, MDFree assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Milcon Design & Build
Waterford, VAPrice Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Capitol Improvements - Roofing & Siding Contractor
Bowie, MDEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
C2 Operations
Leesburg, VAEducational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
HomeRite
Mechanicsburg, PAEducational Website
Price Transparency
Good Customer Service
Services Offered
Double-Hung
Window Replacement/Installation
American Awnings and Replacement Windows
Chambersburg, PAGood Customer Service
Educational Website
Price Transparency
Timely Service
Free assessment
Services Offered
Window Replacement/Installation
American Remodel
Annapolis, MDGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Tri County Windows and Siding
Vienna, VAGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Bay Windows
Custom Window Designs
Glass Doors
Double-Hung
Skylights
Window Replacement/Installation
Anderson Glass Contractors - Frameless Shower Door, Glass Door in Alexandria VA
Marlow Heights, MDPrice Transparency
24-hour emergency availability
Educational Website
Good Customer Service
Custom glass services
Free in-person consultation
Free assessment
Services Offered
Glass Doors
Glass Showers
Custom Glass
Window Replacement/Installation
Mirrors
Glass Repair
Old Town Glass & Window Repair
Alexandria, VAPrice Transparency
Affordable prices
Large online project gallery
Good Customer Service
Third-generation glassier
Free assessment
Services Offered
Custom Glass
Glass Showers
Glass Doors
Mirrors
Glass Repair
Window Replacement/Installation
DISTRICT CAPITOL GLASS LLC
Alexandria, VAFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Glass Doors
Glass Showers
Screen Repair
Window Repair
Mirrors
Glass Repair
Bright Side Exteriors
Centreville, VAFree assessment
Services Offered
Window Repair
Glass Doors
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Westminster, MD using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Westminster Saves You Money
When you switch to energy-efficient windows, you may see some benefits, such as:
- Protect your investment: If you have a relatively old home, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help raise the value of your property if you decide to sell.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
- Save on energy bills: Installing energy-efficient windows reduces your energy bills by about 12% because you need less energy.
- Decrease your carbon footprint: Reducing how much energy you use also lowers your carbon emissions. You could reduce it by about 249 pounds.
Estimated Cost of Window Replacement in Westminster
Windows come in various shapes and sizes, so costs and services will differ considerably. Here are the average costs and services that you’ll find from the average window installation company.
How Much Do New Windows Cost?
According to our market research, the typical cost to install a single window is around $600. However, window replacement costs can range from $200 to $1,200 per window. But costs vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door installations, which will make your project cost more.
It’s important to remember that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save Westminster homeowners $289+ a year when replacing single-pane windows.
Another factor that affects the overall cost is the material you select for your frame. Aluminum frames are usually the least pricey and are sturdy and light, but they offer 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?
In general, there are two kinds of window replacement services you can get: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the windowsill, frame, trim and the window panes. As this kind of installation requires more time, it will cost more than a pocket installation. Pocket installations are simpler and won’t carry as large a bill, as they involve simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may need a full-frame installation instead.
Your window installation company will be able to advise you on the best type for your project. In Westminster, the decision will mostly depend on the efficiency of your home and how old your existing frames are.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Westminster
EcoWatch is different from most reviewers since we evaluate these companies through a sustainability lens. We’ve evaluated the best window replacement companies in Westminster primarily based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. 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
Since this is a guide for Westminster, we gave more points to companies that provide services to the city. There are other reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in Westminster.
Work Quality
We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each installer included in our guide to ensure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have positive feedback about their service from a certain company, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installers are not going to provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a serious investment, so you’ll want to be certain 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 Westminster’s climate, homeowners need to be wary of rot, low efficiency and water damage. We factored in local experience to reflect the ability of Westminster window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Westminster, MD Window Replacement FAQs
How much does window installation cost?
The typical cost of replacing a window ranges between $450 and $650. There are several factors that affect the cost, such as local labor costs, how energy-efficient the windows are, your property’s location, styles and sizes of windows, the materials used in designing the windows and the number of windows.
What type of window is the most energy-efficient?
A window’s energy efficiency depends on a number of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
Can you install your own windows?
If you’re handy and know how to replace a window, it’s possible to install your own windows. But if you don’t have the time or skills, we recommend getting a professional to do it for you.
What time of year is a good time to replace my windows?
Though you can install windows any time of year, warmer weather is usually better for replacing windows. Additionally, the weather should be dry, because rain can make the installation more difficult.