Expert Advice On Improving Your Home

10 Best Window Replacement Companies in Rockville, MD

Get matched with a top local pro.
Join more than 640 people who have gotten a free quote in the past week.

Written By David Cusick

Last Updated April 2024

Windows play an important role in your house's appearance and energy efficiency. Upgrading your windows is a great way to increase the value of your home. According to the Department of Energy, heat gained or lost through drafty windows could be responsible for 25–30% of the heating and cooling costs in your home. By installing energy-efficient windows, you could save an extra $294 on your electricity bills annually in Rockville. Our list of the best window installation companies in Rockville will help you find the best installer for you.

Our Recommended Providers

Top Pick
4.9/5
  • Great quality
  • Free assesment
  • Timely Service
Best Customer Service
4.3/5
  • Great customer service
  • Transparent pricing
  • Award winning company
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty

Top 10 Best Window Replacement Companies in Rockville

Renewal by Andersen of the Capital Region

Renewal by Andersen of the Capital Region Logo

Our Rating

User Rating

Write a Review
5081 Nicholson Ln, North Bethesda, MD 20852 (301) 816-3221 renewalbyandersen.com

Educational website

Free assessment

Good customer service

Price transparency

Services Offered

Double-hung
Bay windows
Glass doors
Window replacement/installation
Skylights

Champion Replacement Windows of Baltimore

Champion Replacement Windows of Baltimore Logo

Our Rating

User Rating

Write a Review
23 Fontana Ln, Rosedale, MD 21237 (410) 202-8636 championwindow.com

Free assessment

Price transparency

Good customer service

Services Offered

Double-hung
Glass doors
Window replacement/installation
Bay windows

Window World of Washington DC

Window World of Washington DC Logo

Our Rating

User Rating

Write a Review
4116 Walney Rd Suite J, Chantilly, VA 20151 (703) 378-7999 windowworlddc.com

Good customer service

Educational website

Timely service

Free assessment

Price transparency

Services Offered

Glass doors
Vinyl frames
Double-hung
Window replacement/installation
Bay windows

Safety Window Glass Repair LLC

Safety Window Glass Repair LLC Logo

Our Rating

User Rating

Write a Review
7529 Spring Lake Dr Unit C1, Bethesda, MD 20817 (202) 460-8860 safetywindowglassrepair.com

Free assessment

Good customer service

Educational website

Price transparency

Services Offered

Custom glass
Double-hung
Window repair
Window replacement/installation
Energy-efficient options
Glass doors
Skylights
Glass showers
Tempered glass
Bay windows
Glass repair
Triple pane glass
Mirrors

Gaithersburg Glass Company

Gaithersburg Glass Company Logo

Our Rating

User Rating

Write a Review
19200 Chennault Way, Gaithersburg, MD 20879 (301) 948-2623 gburgglass.com

Educational website

Price transparency

Free assessment

Good customer service

Services Offered

Window replacement/installation
Glass doors
Glass showers
Storm/impact windows
Custom window designs
Custom glass
Energy-efficient options
Mirrors

Window Expert

Window Expert Logo

Our Rating

User Rating

Write a Review
19420 Ridgecrest Dr, Germantown, MD 20874 (240) 774-2060 germantownwindowreplacement.com

Good customer service

Free assessment

Educational website

Price transparency

Timely service

Services Offered

Glass doors
Double-hung
Window replacement/installation
Energy-efficient options
Custom window designs
Bay windows
Window repair

Home Services at The Home Depot

Home Services at The Home Depot Logo

Our Rating

User Rating

Write a Review
14000 Georgia Ave, Aspen Hill, MD 20906 (301) 304-6179 homedepot.com

Price transparency

Free assessment

Educational website

Good customer service

Services Offered

Energy-efficient options
Vinyl frames
Window replacement/installation
Glass showers
Custom window designs
Glass doors
Screen repair
Storm/impact windows

Window Works Inc

Window Works Inc Logo

Our Rating

User Rating

Write a Review
912 Snure Rd, Silver Spring, MD 20901 (301) 754-1800 windowworksofmaryland.com

Price transparency

Good customer service

Free assessment

Educational website

Services Offered

Glass repair
Window repair
Vinyl frames
Screen repair
Glass doors
Window replacement/installation
Wood frames

Window Replacement DC - Tysons

Window Replacement DC - Tysons Logo

Our Rating

User Rating

Write a Review
7901 Jones Branch Dr #619, Tysons, VA 22102 (702) 553-3278 window-replacement-dc.com

Good customer service

Price transparency

Educational website

Free assessment

Services Offered

Glass repair
Bay windows
Window repair
Skylights
Energy-efficient options
Double-hung
Storm/impact windows
Glass doors
Vinyl frames
Mirrors
Custom window designs
Fiberglass frames
Window replacement/installation
Wood frames
Glass showers

Pella Windows & Doors of Gaithersburg

Pella Windows & Doors of Gaithersburg Logo

Our Rating

User Rating

Write a Review
202 Perry Pkwy Suite 6, Gaithersburg, MD 20877 (202) 810-6722 pellabranch.com

Free assessment

Price transparency

Educational website

Good customer service

Services Offered

Window replacement/installation
Wood frames
Glass doors
Double-hung
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Rockville?

Window installation and replacement costs vary based on a number of factors, including the materials you choose, the number and size of the windows, and how difficult your windows are to access or install. On average, homeowners in Rockville spend around $280 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Installing new energy-efficient windows can significantly enhance your home's insulation, value, comfort, appearance, and noise reduction. Some clear indicators it's time to invest in new windows include the following:

  • High energy bills and discomfort due to poor insulation around windows.
  • Drafts and cold air coming in through old, loose-fitting windows.
  • Windows that are difficult to close, open, and lock properly due to wear and age.
  • Fogging between window panes, condensation issues, or rotting window frames that let in moisture.
  • Inefficient and outdated window styles that detract from your house's curb appeal.

How To Choose a Window Company

Hiring a qualified window installer is critical to a successful project. Below, we cover the most important considerations when it comes to deciding which company to hire.

Experience

Make sure you select a seasoned local installer with a proven track record of successfully installing and replacing windows. Companies that have served Rockville for years are more likely to understand the local climate and local homeowners' needs. Get references from recent clients to learn more about a provider’s service.

Certifications

Choose an installer that’s certified like major window manufacturers, and that has Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Appropriate accreditation means they've received appropriate instruction in installation best practices. Make sure installers are staff, not subcontracted laborers, and confirm that any technicians working on your home have certification.

Reputation

Spend time going through online reviews, checking the Better Business Bureau, and asking for references from people in your area. Review customer feedback to verify that a company regularly provides good workmanship and customer service. Avoid companies with complaints of shoddy work or unfinished jobs.

Process

A quality window installer will be able to provide a comprehensive project plan, precise timelines, clear expectations, and an overview of all material and installation options. Avoid companies that provide vague quotes or schedules. Ask for continual contact from the beginning to avoid surprises further into the project.

Warranties

Seek out window installers that assure quality installations and provide warranties on materials and labor. This shows confidence in their work. Choose companies with unlimited lifetime warranties that can be transferred to new homeowners.

Materials

Ensure that a company uses durable, energy-efficient window brands that work with your budget. Look for good energy ratings, enhanced UV protection, and design flexibility. Confirm the window materials come with their own manufacturer warranties as well.

Frequently Asked Questions About Window in Rockville, MD

In Rockville, the best time to install windows is when temperatures are mild, generally in the spring or fall. These conditions allow installers to do their work with less worry about extreme temperatures.

The best type of replacement window for your Rockville home will depend on the age of your home, as well as your personal style and budget. You'll want to consider the style of your home — such as if it's newer — so your new windows match. Wood windows can provide a traditional look and appearance, while vinyl windows are more popular in more modern homes. Fiberglass windows are also a popular choice, as they are energy efficient and long-lasting.

Windows made from vinyl, wood, or fiberglass are known to last the longest, with some lasting up to 45 years. Vinyl windows are especially durable and low-maintenance, making them a great choice if you want windows that will last a long time. Extra glazing can help reduce your heating and cooling bills in the long run.

It depends on your budget and the condition of your windows. If your current windows are in decent condition, you may want to wait and only replace the ones that really need to be replaced. If you're in an area with lower energy costs, you may be able to wait to replace all your windows.

In some cases, you can replace your own windows, but it's generally recommended to hire a professional. It's important to consider the local temperature when replacing windows, as it will have an effect on the process. For example, the temperatures in Rockville can reach an average high of 63, so you need to consider energy-efficient windows that can protect from the heat. It's also important to measure correctly and follow the instructions for installation. Hiring a professional for your window replacement project will ensure that everything is installed correctly.

Yes, many window companies provide financing options. Some installers offer low-interest or no-interest loans, although you may not qualify if your income is on the higher end, while other companies offer unique financing plans with terms and conditions that vary depending on the job.

Window replacement companies in Rockville typically offer many services, including window installation, fixing windows, window maintenance, cleaning, tinting, and weatherproofing.

Other Rockville, MD Home Services