AA Exteriors in Baltimore: Composite Decking and Pressure-Treated Railings
AA Exteriors is a deck and railing contractor serving the Baltimore area with a focus on composite decking installation and pressure-treated or composite railing systems. The company works on residential projects ranging from small repairs to full-structure replacements, positioning itself as a mid-market option between DIY supply stores and high-end custom builders.
What AA Exteriors actually does
AA Exteriors installs and repairs decks and railing systems, with an emphasis on composite deck boards paired with pressure-treated or composite railings. The work includes structural assessment, foundation repair where needed, board replacement, and code-compliant railing installation. Projects typically range from 200 to 800 square feet, though the company takes larger jobs. They do not manufacture custom railings on-site; instead, they source materials and install them to Maryland building code, which requires 4-inch balusters spaced no more than 4 inches apart and railings rated for 200-pound lateral force.
Services and pricing
AA Exteriors charges by the square foot for deck installation, with composite decking running roughly $18 to $24 per installed square foot, depending on board quality and color selection. Pressure-treated decking costs $10 to $15 per square foot. Railing installation is priced separately, typically $50 to $80 per linear foot for composite railings and $40 to $65 per linear foot for pressure-treated options. Repair jobs, including board replacement or structural reinforcement, are quoted individually; expect a diagnostic fee of $150 to $200 if structural damage is suspected. A typical 400-square-foot composite deck with composite railing runs between $10,000 and $13,000 before permit and inspection fees. Pricing should be confirmed directly, as material costs shift seasonally.
How AA Exteriors compares locally
Baltimore-area deck contractors fall into three tiers. Large home-renovation companies like Cornerstone and Chesapeake Home Solutions often bundle deck work into broader remodeling contracts and charge premium rates but provide extensive warranty coverage. Smaller, independent contractors like AA Exteriors typically undercut those prices by 15 to 25 percent while offering direct communication and faster scheduling. The trade-off is that warranty terms and project insurance vary more widely. Big-box supply stores like Lowe's and Home Depot offer installation services at lower per-foot rates ($8 to $15) but often use rotating crews and provide minimal structural assessment; they suit straightforward, low-complexity jobs. Choose AA Exteriors if you want a mid-range price with personalized assessment; choose a large firm if you prioritize long warranty terms and bundled finishes; choose big-box installation only if your deck is structurally sound and you need speed and cost efficiency.
Who it suits and who it does not
AA Exteriors works well for homeowners in East Baltimore, Canton, Federal Hill, and surrounding neighborhoods who want composite durability without custom design work. The company is well-suited to replacing older pressure-treated decks with modern composite boards and to installing code-compliant railings on existing structures. It does not do custom architectural railings, glass panel systems, or specialty materials like aluminum or stainless steel; those require specialized fabricators. It also does not typically handle major structural repairs that require engineers' drawings, though it can refer customers to structural specialists if needed.
What the first visit involves
AA Exteriors sends a representative to measure the deck area, assess the foundation and existing boards for rot or settling, check local permit requirements, and discuss material options. This visit is free and takes 30 to 45 minutes. The rep will take photos and provide a written estimate within three to five business days. If you have structural concerns, ask during the initial visit whether a structural engineer's evaluation is necessary before work starts; AA Exteriors can coordinate this at additional cost. Once you approve the estimate and permit is issued by Baltimore's Department of Housing and Community Development, scheduling typically occurs within two to four weeks depending on season.
Hours, parking, and logistics
AA Exteriors operates Monday through Friday, 8 a.m. to 5 p.m., with Saturday appointments available by request. The company is based in the Baltimore area and serves a 15-mile radius; travel charges may apply for jobs beyond that. Most residential decks are completed in three to seven days depending on size and weather. Parking for crew vehicles should be available on-site or nearby; discuss this before work begins if street parking is limited. Permit and inspection are the homeowner's responsibility, though AA Exteriors can guide the process and coordinate with the city inspector.
AA Exteriors fills a practical role in Baltimore's deck market, offering a direct alternative to big-box service centers and corporate renovation firms without the premium pricing of high-end custom builders.

