
Explore Window Types for Homes Across D.C., Maryland, and Virginia
Discover the Styles That Bring Out Your Home’s Best
Replacing your windows isn’t just about fixing a draft or refreshing your space. It’s a chance to reshape how your home looks, feels, and functions every day. In the Washington metropolitan area, where historic rowhomes sit alongside mid-century colonials and newer suburban builds, the right window type can make all the difference in comfort, energy savings, and curb appeal.
At Alco Products, we help homeowners make those choices with confidence. We don’t expect you to know exactly what you want when you come to us. Our team is here to walk you through the possibilities. We’ll talk about your home’s architecture, how you use your spaces, and what you want your home to feel like.
Whether you live in the heart of D.C., near the green neighborhoods of Montgomery County, or across Northern Virginia, we’ll help you select styles that enhance your home’s personality and performance.
Popular Window Types for the D.C. Metro Region
We offer a wide range of top-quality replacement windows from trusted manufacturers, including Marvin windows and Vytex vinyl windows. These brands are known for long-term durability, strong performance in the Mid-Atlantic climate, and versatile design options that work beautifully in both older and newer homes.
Some of the most popular window types we install include:
Double-Hung Windows: Classic and versatile, these windows allow both the top and bottom sashes to open for easy ventilation and cleaning.
Single-Hung Windows: A timeless, budget-friendly option where only the bottom sash moves while maintaining a traditional appearance.
Casement Windows: Hinged on the side and operated with a crank, these windows offer excellent airflow and a secure, tight seal when closed.
Awning Windows: Hinged at the top, they open outward to allow fresh air even when there’s light rain—ideal for the region’s varied weather.
Slider Windows: Smooth, horizontal operation makes these windows great for areas where you don’t want a sash opening outward.
Bay and Bow Windows: These multi-panel windows extend outward from the home, adding dimension, natural light, and architectural character.
Picture Windows: Large, fixed panes that frame outdoor views and invite maximum sunlight into living rooms, dining rooms, and stairwells.
Garden Windows: Designed to project outwards with glass on multiple sides - perfect for growing herbs or displaying indoor plants.
Hopper Windows: Small inward-opening windows commonly used in basements to improve airflow while maintaining privacy.
Emergency Egress Windows: Designed to meet code requirements for basement bedrooms, adding both safety and peace of mind.
Custom-Shaped Windows: Tailored for unique architectural needs, historic homes, or distinctive design features.
No matter which style you choose, the replacement windows we install are built with modern energy-efficient glass and frame technologies. They help stabilize indoor temperatures, reduce exterior noise, and block UV rays—all of which are particularly beneficial in a region with hot summers, cold winters, and lively urban activity.
BOGO 40%*
Flexible financing available including no payments and no interest until 2027**
Featured Customer Review
I needed better heat resistant windows, found Marvin, found Alco, rest is history. Truly Professional handling of both projects from inception through installation and completion. Great job!
When your windows are damaged or hard to open and close, it’s time for window replacements.
How We Help You Select the Right Window Types for Your D.C. Home
Choosing windows isn’t just about selecting a style you like; it’s about finding the right fit for your home’s architecture, layout, and comfort needs. With decades of experience in D.C.-area homes, we help you compare options confidently and understand how each choice will perform.
Here’s how we guide you through the process:
Personal Consultation
We start with an in-depth meeting to understand your goals, style preferences, and functional needs.
Custom Product Recommendations
Our team suggests the best options from our Marvin and Vytex collections, tailored to your home’s age, layout, and the architectural nuances of the D.C. area.
Certified Professional Installation
Our trained crews handle every step of the installation with precision and care. A dedicated on-site project manager ensures consistent communication and a clean, protected workspace from start to finish.
By blending thoughtful design, industry expertise, and meticulous craftsmanship, Alco Products makes replacing your windows a stress-free experience. You will have confidence knowing your home’s beauty, comfort, and efficiency are in expert hands.
Explore Our Window Options In Person
Sometimes, the best way to choose your new windows is to see them up close. With Alco, you can do exactly that. Visit our North Bethesda, MD, showroom to explore a full range of styles, finishes, and materials in person.
Our friendly team will listen to your needs, show you how different window types operate, and guide you toward solutions that fit your space and budget. Whether you’re focused on energy performance, noise reduction, or historic accuracy, we’ll help you visualize how your home will look and feel after the upgrade.

Why Homeowners Trust Alco for Window Installation
For more than 69 years, Alco Products has been the go-to name in exterior remodelling across the Washington metropolitan area. We’re a family-run company built on honesty, craftsmanship, and respect, values that continue to shape how we do business today.
Homeowners throughout Capitol Hill, Old Town Alexandria, Montgomery County, and beyond turn to Alco because we understand the local architecture and take pride in preserving it. We know the quirks of brick rowhouses, the proportions of Tudor-style homes, and the insulation needs of suburban properties in places like Potomac and McLean.
Our reputation rests on more than just results; it’s the experience we deliver. From clear communication and design previews to on-site job management and meticulous cleanup, every project is handled with care. We treat your home as if it were our own, protecting your landscaping, flooring, and furnishings throughout installation.
Most importantly, our customers know we’ll stand behind our work. Every window installation comes backed by comprehensive product and labor warranties, giving you long-term confidence in your investment. When you work with Alco, you’re not just getting beautiful windows; you’re getting peace of mind.
Frequently Asked Questions about Window Types
Upgrade Your Windows with Alco Products in D.C., MD, or VA
If you’re ready to explore new windows for your home, our team is here to help. Contact Alco Products to schedule your consultation, visit a showroom, or begin planning your project. We’ll guide you through every step and help you choose windows that look beautiful, perform reliably, and enhance your home for years to come.
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