WINDOWS & DOORS
Let the Sun Shine In with New Windows and Doors
New windows and doors let the sun shine in a home! They can also keep the drafts out in the winter and the cool air in during the summer. When customers need new windows and doors, they reach out to us.
With Diligent Exterior Remodeling’s range of innovative designs and durable materials, we’re confident we can bring your vision to life. Let us help brighten your space, enhance your comfort, and elevate your property’s aesthetics with outstanding windows and doors.
Consultation and Design
Are you looking for selection assistance? We help you choose the right windows and doors for your needs.
Window/Door Installation
Do your windows and doors need a little TLC? We can assist with fixing broken glass, addressing leaks or drafts, and replacing damaged hardware.
Window/Door Repair & Maintenance
We will perform repairs and maintenance tasks such as fixing broken glass, addressing leaks or drafts, or replacing damaged hardware.

ProVia provides energy-efficient windows that best meet the weather conditions in your area. The technology in the windows includes the vinyl compound, the frame design, and specialized glass system that combines low-E and clear glass with an insulating gas, like argon or krypton. Please contact us to schedule an appointment or if you have questions.
Double Hung Windows

ENDURE
Stunning energy efficiency and the most options for colors, glass and more..

ASPECT
Excellent mid-range window with high energy efficiency & sturdy construction..

ECOLITE
The best option for homeowners seeking a white, all-vinyl, economy-class window.
Sliding Windows

ENDURE
Stunning energy efficiency and the most options for colors, glass and more..

ASPECT
Excellent mid-range window with high energy efficiency & sturdy construction..

ECOLITE
The best option for homeowners seeking a white, all-vinyl, economy-class window.
Awning & Casement Windows

ASPECT
Excellent mid-range window with high energy efficiency & sturdy construction..

ECOLITE
The best option for homeowners seeking a white, all-vinyl, economy-class window.
Replacement Picture Windows

ENDURE
Excellent mid-range window with high energy efficiency & sturdy construction..

ASPECT
Excellent mid-range window with high energy efficiency & sturdy construction..

ECOLITE
The best option for homeowners seeking a white, all-vinyl, economy-class window.
Bay & Bow Windows

ENDURE
Excellent mid-range window with high energy efficiency & sturdy construction..

ASPECT
Excellent mid-range window with high energy efficiency & sturdy construction..
Architectural Windows

AERIS
Superior vinyl window construction paired with a beautiful wood-clad interior.

ENDURE
Excellent mid-range window with high energy efficiency & sturdy construction..

ASPECT
Excellent mid-range window with high energy efficiency & sturdy construction..

ECOLITE
The best option for homeowners seeking a white, all-vinyl, economy-class window.

Browse our complete replacement window collection to learn how Infinity from Marvin fiberglass windows offer durability, style
and strong performance. Please contact us to schedule an appointment or if you have questions.

Awning Window
Maximize light in your home with the Infinity Awning. Choose an Infinity Awning for a tight space that requires you to reach to open a window – or pair it with other windows to add architectural interest and airflow to your home.

Bay Window
Enjoy the additional light and space provided by Infinity Replacement Bay Windows, as well as the low-maintenance of fiberglass construction.

Bow Window
The Infinity Bow replacement window is built with a gentle curve to capture light from multiple angles and completely transform a room. Our Bow windows are available in casement configurations that open outwards so you can enjoy natural light and a fresh breeze.

Casement Window
Infinity Replacement Casement Windows are made of Ultrex® fiberglass, featuring two hinge options for easy cleaning or larger, unobstructed views.

Double Hung Window
A classic window style, the Infinity Double Hung is updated for modern performance. Tilt the window in for easy cleaning, and enjoy how smoothly your new window will open and close for the perfect amount of fresh air.

Round Top Window
Add visual interest to a room with the Infinity Arch Replacement Window. Combine light and style by adding a Half moon window over another window or door product.

Single Hung Window
The Infinity Single Hung offers the same great performance and classic style as the Infinity Double Hung, only with a fixed top sash.

Single Hung Round Top Window
The Infinity Single Hung offers the same great performance and classic style as the Infinity Double Hung, only with a fixed top sash.

Slider Window
Glide open the Infinity Slider (also commonly referred to as a Glider) to enjoy a cool breeze and wide-open views without worrying about a window opening into your outdoor living space or landscaping. We’ve designed the Infinity Replacement Slider window to seal tightly against water and wind so you’ll enjoy a breeze only when you want to.

Special Shapes Window
Combine multiple Infinity Special Shape windows to add abundant natural light and architectural interest to your home – or use a Special Shape as an impressively large picture window for sweeping views.
Do You Need Windows/Doors?
Use this quick checklist to determine if you need new windows and doors.
- Energy efficiency: If your windows and doors are old and drafty, they could be increasing your energy bills. New windows and doors are often more energy-efficient and may save you money in the long run.
- Appearance: If your windows and doors are outdated or damaged, they detract from the appearance of your home. New windows and doors can improve your home's curb appeal and potentially increase its value.
- Security: If your windows and doors are old and don't close properly, they could pose a security risk. New windows and doors often come with improved locking systems, which can provide better protection for your home.
- Comfort: If you notice drafts or feel uncomfortable temperatures near your windows and doors, they could be signs that they need to be replaced.
Frequently Asked Questions
As a homeowner or business owner, you likely have many questions about Windows/Doors, including repairs, replacements, and maintenance. Our goal with is to provide you with answers to some of the most frequently asked questions about roofing.
Yes, our estimates are easy and hassle‐free. We offer both virtual and in-home estimates for most services including siding, roofing, windows, and doors in Montgomery County, Frederick County, NW DC and surrounding areas.
In general, a typical residential window/door project that involves the installation of new windows/doors or the replacement of an existing windows/doors can take anywhere from a few days to a week to complete.
At Diligent Exterior Remodeling, we stand behind the quality of our products and services. We offer a warranty on all of our home exterior renovation services, including roofing, siding, window replacement, and more. Contact us today to learn more about our warranty options and enjoy peace of mind knowing that your investment is protected.
Our cleanup process includes removing debris, inspecting the area for hazards, using a magnet sweep to collect any missed nails or metal debris, conducting a final inspection, and inviting the customer to inspect the job site.