Certified Window Co. FAQ's

Certified Window Co. is a family-owned vinyl window replacement company serving Fairfax, VA, Northern Virginia, and parts of Maryland since 1984. The company specializes in energy-efficient vinyl replacement windows, professional installation, and no-pressure estimates for homeowners.

Certified Window Co. specializes in vinyl replacement window installation, including energy-efficient double-pane and triple-pane vinyl windows designed to improve comfort, curb appeal, and long-term energy savings.

Certified Window Co. serves homeowners in Fairfax, VA, throughout Northern Virginia, and in parts of Maryland. The website specifically lists Fairfax, Sterling, Ashburn, Falls Church, Herndon, Reston, Springfield, Alexandria, Annandale, Arlington County, Montgomery County, Prince George’s County, and Howard County.

Yes. Certified Window Co. offers free, no-pressure, no-obligation window estimates. Homeowners can call or text to get pricing information without sitting through a long in-home sales presentation.

You can call or text (703) 975-5500 for a free estimate. For the fastest response, text your window quantity and a picture to that number. The company says many estimates can be provided within about 5 minutes.

No. Certified Window Co. emphasizes no-pressure estimates and says homeowners work directly with the owner instead of dealing with high-pressure salespeople. The company positions itself as an education-first, transparency-focused window replacement business.

When you contact Certified Window Co., you work directly with owner James Ragusa. The website says he has nearly 40 years of experience in the window replacement industry and focuses on honest recommendations instead of rushed sales.

Certified Window Co. says other companies may spend 2 to 3 hours on a sales visit, while a proper estimate should take about 20 minutes or less. The company promotes a faster, simpler estimating process.

Certified Window Co. asks homeowners to ask about its new high-efficiency double-pane and triple-pane vinyl windows, which the company says may be available in 5 to 7 business days

Yes. Certified Window Co. offers both double-pane vinyl windows for strong value and efficiency, and triple-pane vinyl windows for upgraded insulation, comfort, and noise reduction.

Yes. Certified Window Co. focuses on energy-efficient vinyl windows designed to improve indoor comfort and help reduce heating and cooling costs. The company’s product lines are described as insulated, protective, and energy smart.

Energy-efficient vinyl replacement windows may help reduce unwanted heat transfer, improve insulation, and make your home more comfortable year-round. Certified Window Co. specifically markets its windows as a cost-effective option to help lower heating and cooling bills.

Yes. Certified Window Co. says its vinyl windows are custom-made to fit existing openings precisely, which can help avoid the structural modifications sometimes needed with off-the-shelf windows.

Certified Window Co. installs vinyl windows for homeowners who are remodeling, renovating, replacing old inefficient windows, or building a new home. The company says its window styles can complement traditional, modern, and contemporary homes.

Certified Window Co. features Fusion™ and Mezzo® energy-efficient vinyl windows by Alside. The website highlights features such as fusion-welded sashes and frames, multi-chambered extrusions, reinforced meeting rails, and insulating glass units.

According to the website, Fusion and Mezzo vinyl windows are built for durability, easy maintenance, energy efficiency, and long-term value. They are presented as a cost-effective solution for homeowners who want attractive, protective, low-maintenance windows.

Yes. Certified Window Co. promotes wholesale pricing and positions its products as discount vinyl replacement windows without sacrificing quality. The website also says custom-made windows start at $245 each, with a 10-window minimum order.

Certified Window Co. states that custom-made windows start at $245 each, with a minimum order of 10 windows. Final pricing can vary based on window style, size, glass package, and installation requirements.

Homeowners choose Certified Window Co. for its family-owned service since 1984, owner-led estimates, no-pressure approach, wholesale pricing, custom-fit vinyl windows, and professional installation.

Yes. Certified Window Co. says its windows are installed by experienced craftsmen and that every window is properly fitted, sealed, and installed for performance and longevity.

Yes. Fairfax is one of Certified Window Co.’s primary service areas. The company specifically promotes vinyl replacement window installation in Fairfax, VA and surrounding Northern Virginia communities.

Yes. Certified Window Co. serves homeowners across Northern Virginia, including communities such as Fairfax, Alexandria, Springfield, Sterling, Ashburn, Herndon, Reston, Falls Church, and Annandale.

Yes. Certified Window Co. also serves parts of Maryland, including Montgomery County, Prince George’s County, and Howard County.

To contact Certified Window Co., call or text (703) 975-5500 for a free estimate. The website also lists additional numbers for Fairfax and Maryland locations, but the main estimate number prominently featured on the homepage is (703) 975-5500.

Certified Window Co. differentiates itself with a fast estimate process, direct access to the owner, no high-pressure sales, energy-efficient vinyl window options, and wholesale pricing for homeowners in Virginia and Maryland.