Siding Installation in DC, MD & VA

One of the most important aspects of your home's exterior is the siding. It affects curb appeal, energy efficiency, and structural integrity.

Do you need new siding on your home?

If so, choose Certified Inc. for the job. We proudly serve residential and commercial clients in Maryland, DC, and Northern Virginia. Let us put our 30+ years of experience installing siding to good use for you!

Our expert team installs 3 types of siding.

  • Vinyl siding
  • HardiePlank siding
  • Cedar siding

Not sure if you need new siding on your home? Click here to see if an upgrade to new siding could help your home and learn what to look for.

To schedule a siding installation estimate and have our experts guide you through what type of siding would be best for home, style, and budget, please contact us, call 301-476-0103, or email We serve the Maryland, Washington DC, and Northern Virginia areas!

Types of Siding


The Top 6 Reasons to Side Your Home with Vinyl New Vinyl Siding

  1. Style: A virtually endless range of styles, colors, and textures means you can pursue any architectural style or personal taste.
  2. Versatility and ease of use: It's easy to create the complete look. Complementary vinyl siding profiles, trims, and accessories let you add the finishing touches to any design. (And they're all just as low maintenance as your siding.)
  3. Warranties and durability It's engineered for life. Vinyl siding is continually innovated for long-term durability. Multiple attachment points create superior wind resistance, with a minimum of 110 mph, and advanced UV-resistant coatings resist fading, helping even dark colors remain vibrant for years.
  4. Low-maintenance: It's virtually maintenance free. It's easy to clean and refresh with just soap and water, virtually eliminating the hassles of ongoing maintenance found in other siding products and offering a low cost of ownership.
  5. NO water damage! It's immune to moisture damage. You never have to paint or caulk to protect the vinyl siding material from water as with some other cladding materials, and vinyl siding actually helps a home's walls breathe and dry out.
  6. Certified: Its performance is certified and its sustainability is documented. Most products are certified and independently verified to meet or exceed unique quality standards and performance characteristics, and its “green” attributes are fully documented by the industry's first environmental product declarations (EPDs).

The expert teams at Certified Inc will help you pick which style and type of vinyl siding is best for your needs.

HardiePlank Traditional and timeless. Sleek and strong.

HardiePlank® lap siding is not just our best-selling product—it's the most popular brand of siding in America, protecting and beautifying more homes from coast to coast. All styles are engineered for Climate® and come primed or with baked-on ColorPlus® Technology.

James Hardie siding is over five times thicker than vinyl, allowing for deeper grooves and a more authentic wood-grain effect. The result is more elegant than other types of siding, particularly on a historic home. James Hardie products are also noncombustible. Vinyl may crack and warp from the elements; James Hardie products are more durable and resist warping, sagging and melting.

James Hardie offers the right textures, widths, and colors to complement the style of home you desire. Add strong horizontal lines with HardiePlank® lap siding. Adorn gables and dormers with HardieShingle® siding. Display a rustic board and batten look with HardiePanel® vertical siding and HardieTrim® boards. Achieve a specific traditional aesthetic, or harmonize elements for an updated and unique design.


In a world made up mostly of homes with the same old vinyl siding, homes with cedar siding stand out as unique and beautiful. Homes with cedar siding as their exterior have a rich, brown warmth. According to the National Roofing Contractors Association, wood shingles are usually made from western red cedar, cypress, pine and redwood trees. The cedar can be cut to form planks that are fit together, or can be in the form of shingles or “shakes.” The use of cedar has been going on for a long time in the United States and Canada.

Reasons to pick cedar siding for your home:

  • Beautiful
    The unique tones and patterns of untreated cedar siding mean no two homes look exactly the same. Homeowners can also treat the siding with stains, finishes or oils to create a variety of different looks and colors. While other colors and styles of siding can look dated, cedar siding is timeless. Because cedar has such a classic look, it goes well with all different types of homes.
  • Durable
    While wood in your home often needs special care and extra protection against moisture, cedar is naturally water resistant. It is also naturally resistant to decay and insects. “Cedar fibers in the heartwood contain natural preservatives that are toxic to decay-causing fungi,” says the Western Red Cedar Lumber Association.
  • Safe
    Cedar Siding does not have the chemical makeup of vinyl or synthetic materials.
  • Environmentally Friendly
    According to the Cedar Shake and Shingle Bureau, cedar is “green,” a renewable resource. That's because the group says that new cedar trees are always being planted. The group cites statistics from the American Forest and Paper Association that say that in 1999, the forestry community planted some 1.7 billion trees in the United States. That's an average of more than 4 million new trees planted every day and more than five new trees a year for every man, woman, and child in America. The group says the cedar trees it maintains are also good for the environment because they suck up greenhouse gas emissions that help lead to global warming.

Every home is different. The way you chose to display it to the world is up to you. However, there are a number of reasons that cedar makes a great choice. Contact us for your free estimate and to discuss why cedar siding is the right choice for your home!

Signs You Should Install New SidingResidential Siding Services

Because of the large surface area your siding covers and the skill set required to perform an installation, it's no surprise that new siding is a significant investment. This means you want to know for certain that your siding needs to be replaced before you move forward with this home improvement project. Here are the signs to watch out for:

  • Bubbling, blistering, chipping, or cracking: Exposure to intense heat or high amounts of moisture can cause the siding to bubble and blister. Chipping and cracking are signs of hail damage or other forceful impacts. These signs of damage mean your siding is weak, and you should replace it.
  • Dry rot: Wood is susceptible to dry rot, a fungus fueled by moisture that decomposes your siding until it simply flakes away. If you've got dry rot, replace your siding to stop the spread. Vinyl siding is a great alternative to wood.
  • Wildlife damage: Holes from woodpeckers, squirrels, and insects, including termite damage, make your home vulnerable to pest invasions. Keep them at bay with new siding.
  • Interior paint and wallpaper damage: This indicates a moisture problem in your walls. Don't ignore it or the issue could spread. New siding can stop wind, rain, sun, snow, and all of the above from getting into and damaging the interior walls of your home.
  • Loose siding: Shoddy installation, foundation settling, and other factors can cause the siding to loosen. In this condition, the siding can't protect your home, so you should address the issue quickly. The older siding gets the more susceptible it is to warping, sagging, stretching, and damage, causing it to not protect or insulate your home properly.
  • No insulation in the walls: If you have inadequate insulation in the walls of your home, replacing the siding is the perfect time to add more. An energy audit will reveal if there is anything that can be done to improve the quality of the siding or insulation on your home.
  • Embarrassing color: Your decision to replace your siding may be purely aesthetic. If you're tired of the outdated look, but your siding can't be painted, replacing it may be the best option.
  • Tiresome maintenance requirements: Wood siding must be sanded, painted, and stained to remain durable. If you're tired of these expensive tasks, put your money toward low-maintenance replacement siding.

Benefits of Installing New Siding

If you still aren't compelled to replace your siding, consider the benefits that await you once you make this improvement:

Increased curb appeal: Installing beautiful, vibrant siding in the color you choose will make you proud to have guests over.

Opportunity to repair hidden structural damage: Issues with your siding sometimes cause hidden damage underneath. Often the only way to address these problems is to remove the old siding, make a repair, and install new siding.

Increased energy efficiency: While the siding is removed, add rigid foam insulation and a house wrap product to insulate your home. This helps your energy bills drop and your family's comfort level soar.

Schedule Siding Installation in Maryland, DC & Virginia

A quick inspection of your existing siding should tell you whether it's time to replace it – and we can help. When you're ready to enjoy all the benefits of new siding, choose Certified Inc. to perform the installation for you. We are a family-owned and operated home improvement business based in Highland, Maryland with customers located throughout the DC Metro area. We're licensed, bonded, and insured, and our experience installing siding dates back to 1984.

Certified Inc Siding Contractors from YPC Media on Vimeo.

When you're ready to install new siding, please contact us to request a free project estimate!

We Service the Following Areas:

Maryland: Annapolis,  Bethesda, Columbia,  Frederick, Gaithersburg, Highland, Laurel, Olney, Potomac, Rockville, Silver Spring, Takoma Park

Northern Virginia: Alexandria, Arlington, Fairfax, Falls Church, Loudoun, Manassas, Sterling

Washington DC