Professional Siding Installation in DC, Maryland, and Virginia

Up to 20% off (10% off vinyl – 20% off Hardie)*
Flexible financing available including no payments and no interest until 2027**
The DC Metro Area’s Trusted Siding Contractor
When you partner with Alco Products for siding installation in Washington, DC, Maryland, or Northern Virginia, you’ll be assigned a dedicated project manager who keeps you involved at every step. Our team coordinates all aspects of siding replacement and installation, including measurements, product ordering, site preparation, installation, and cleanup. Your project manager keeps you informed and serves as your single point of contact.
The Siding Installation Process, Step by Step
Alco Products takes the stress out of siding replacement with an organized process:
Initial Evaluation and Measurements: We inspect your home's exterior, take detailed measurements, and identify conditions that may affect product selection or installation.
Product Selection and Rendering: You select your siding material and color. We can create a project rendering so you can preview the finished look before work begins.
Site Setup and Protection: We carefully stage materials, protect landscaping and nearby surfaces, and keep the work area organized.
Existing Siding Removal and Substrate Inspection: We remove the existing siding and inspect the surface underneath for moisture damage, rot, and other issues to address first.
Moisture Barrier and Flashing: We install the appropriate moisture barriers and flashing details to help protect the structure behind your siding.
Siding Installation and Trim: We install panels, trim, corners, and penetrations according to manufacturer requirements, with close attention to fit and finish.
Final Cleanup and Walkthrough: We keep the site clean throughout the project and complete a final walkthrough with you before the job is finished.
As a James Hardie Elite Preferred Contractor, Alco Products follows stringent James Hardie installation requirements on every fiber cement siding project.
Featured Customer Review
Professional and Delivered on Promises - My wife and I chose Alco for a full exterior renovation in 2020. They installed an entirely new roof system, gutters, AZEK trim, and Fiber cement siding. ALCO delivered on every promise they made when we went to contract. The timeline and costs were accurate and the quality of workmanship was terrific. Friends and neighbors still tell us how wonderful the house looks! Thanks ALCO!

Types of Siding Alco Installs Across the DC Metro Region
We install two popular types of siding for homeowners throughout DC, Maryland, and Northern Virginia:
James Hardie fiber cement siding is our most requested choice. Alco Products is a James Hardie Elite Preferred Contractor and a recipient of the James Hardie Service Excellence Award. We install each system according to manufacturer requirements, coordinate applicable manufacturer warranty coverage, and back our workmanship with our own labor warranty. Learn more on our James Hardie siding page.
CertainTeed vinyl siding offers another durable, low-maintenance alternative to wood. Our siding types comparison page explains the differences between fiber cement and vinyl siding.
For homes in historic neighborhoods, material requirements may be more specific. Certain districts in Washington, DC, Capitol Hill, and Old Town Alexandria have restrictions that can affect siding selection. We review those considerations during your consultation.
Siding Installation Backed by a Limited Lifetime Labor Warranty
Alco Products protects siding installation projects with limited lifetime labor warranties. If an issue arises with our workmanship, you'll have a clear point of contact and a defined process to get it addressed.
We also help coordinate applicable manufacturer product warranties, giving you one company to call when questions come up. Financing is available for qualified homeowners throughout the DC Metro region.
Our focus on customer care and consistent workmanship has also earned Alco Products the coveted GuildQuality Guildmaster Award. See what other DC Metro homeowners are saying on our customer reviews page.
Why DC Metro Homeowners Choose Alco for Siding Installation
For 70 years, Alco Products has served homeowners across DC, Maryland, and Northern Virginia. As a local, family-owned company in its third generation, we treat every client like a neighbor and bring personal service to every project. Your dedicated project manager provides a consistent point of contact, while trained and certified installers complete the work to manufacturer requirements.
Alco Products has also been recognized as a NARI Contractor of the Year, included in the Qualified Remodeler Top 500, and named Best of Northern Virginia. These recognitions reflect the high standards we've maintained since 1956.

Siding Installation Across DC, Maryland, and Northern Virginia
Alco Products installs siding throughout the DC Metro region, including Bethesda, McLean, Potomac, Arlington, Alexandria, Silver Spring, Columbia, Fairfax, Annapolis, and beyond. From newer suburban homes to historic properties in Capitol Hill, we understand the local material requirements, permitting considerations, and installation conditions that can affect your project.
Our North Bethesda showroom at 4921 Wyaconda Road lets homeowners see siding samples and compare options in person. Visits are available by appointment. For more communities we serve, visit our service areas page.
Siding Installation FAQs
Timing depends on your home's size, the amount of work involved, and the siding material you select. Your project manager will provide a realistic schedule during the estimate process based on the details of your home.
We remove the existing siding and inspect the surface underneath before installing the new material. This lets us identify moisture damage, rot, or other conditions that could affect the new siding if not addressed first.
Your project manager will let you know what preparation is needed before work starts. In most cases, homeowners should clear furniture, planters, and other items away from the exterior. We handle the remaining site setup and protection.
Yes. We can provide project renderings for siding projects so you can see how your selected material and color will look on your home before installation begins.
Yes. We have extensive experience working in areas such as Washington, DC, Capitol Hill, and Old Town Alexandria, where material restrictions often apply. We review those requirements during your consultation and explain which siding options fit your property.
The designation recognizes contractors that meet James Hardie's standards for installation practices, training, and customer service.
Yes. Financing options are available for qualified homeowners across DC, Maryland, and Northern Virginia. Your project consultant can review available options with you during your estimate.
Request a Free Siding Installation Estimate in DC, Maryland, or Virginia
Alco Products is pleased to offer free siding replacement estimates for homeowners throughout DC, Maryland, and Northern Virginia. Request a consultation online or call us directly to get started. If you'd like to compare materials in person, our North Bethesda showroom is available by appointment. We'll give you clear information about your siding options, pricing, and next steps so you can make the right decision for your home.
Explore Options
Contact Us

Mon-Fri: 9am - 7pm
Sat: 10am - 2pm
Sun: Closed
Mon-Fri: 9am - 7pm
Sat: 10am - 2pm
Sun: Closed

