Maryland Custom Decks
Custom deck builders serving Harford, Baltimore, and Cecil County, Maryland. Trex Pro Platinum installation plus other premium composite and wood options, designed for the way you actually use your outdoor space.
About Our Decks
We've been building decks across Maryland for over a decade, with 30+ years of outdoor living expertise behind every project. We're a Trex Pro Platinum contractor, which puts us in the top 1% of Trex installers nationally, and we also build with other leading composite brands and traditional wood when that's the right fit. We don't do cookie-cutter deck designs, every deck we build is custom-designed for the homeowner, the home's architecture, and how the space will actually be used.
Want shade on your new deck without giving up the open sky? A motorized retractable awning extends over the deck at the touch of a button and rolls away when you want full sun. See our Alutech SunShield retractable awnings.
Why Custom Design & Build
Top 1% of Trex installers nationally. Manufacturer-backed warranties and factory-trained installation.
Every deck is custom-designed for your home, your space, and how you'll use it. No cookie-cutter templates.
Premium composite materials with up to 50-year material warranties. Real durability, not seasonal repairs.
Lighting, built-in seating, planters, pergolas, and outdoor kitchens, planned and installed as part of the build.
Recent Projects
Investment Guide
$20,000 to $80,000
Final pricing depends on your specific design, materials, and site conditions.
Entry
200 to 300 sq ft Trex Enhance, single level, standard railings. Starting around $20,000.
Mid-tier
350 to 500 sq ft Trex Select, integrated lighting, premium railings. Around $35,000 to $50,000.
Premium
500+ sq ft Trex Transcend, multi-level, custom features (lighting, seating, pergola). $55,000 to $80,000+.
Frequently Asked Questions
What Homeowners Say
"Mark was incredibly patient, walked us through every step of the process, and delivered a dream deck that exceeded our expectations. The deck was completed ahead of schedule. His crew was hard working, meticulous, and respectful."
Marsha Cole
Verified Google Review
"We couldn't be happier with the beautiful deck and porch roof Custom Design and Build completed for us in Forest Hill. Their craftsmanship is top-notch, and they were always clear and consistent with communication."
Kristen Volz, Forest Hill MD
Verified Google Review
"Mark was fantastic to work with from start to finish. He's incredibly knowledgeable and took the time to explain everything clearly. The entire experience was smooth, professional, and exceeded our expectations."
Brandon Herd
Verified Google Review
Learning Center
Decks
Warning signs your deck needs work, how long deck materials last, and what to expect when you remodel or rebuild a deck in Maryland.
Decks
Seven signs an older wood deck in Harford County has reached the end of its life, from rotting boards and loose railings to rusted fasteners.
Decks
The main things that drive the price of a custom deck: the material you choose, site access, railings, size and layout, and county permits.
Decks
Transform your outdoor space with expert craftsmanship from Custom Design & Build, the leading deck builder in Harford County. Our skilled team specializes in creating beautiful, durable decks tailored to your lifestyle and preferences. From initial design consultations to project completion, we pri
blog
Adding a deck, patio, or both to your home can elevate your outdoor living space, creating an inviting area for relaxation and entertainment. But before you dive right into your next renovation project, you’ll want to understand the benefits and differences between these two features. That way, you
News
From the gentle curves of the Susquehanna River to the historic charm of Havre de Grace, Harford County, Maryland, is a testament to nature's beauty and our rich heritage. It's only fitting, then, that homes in this region have outdoor spaces that mirror this elegance. Enter Custom Design And Build,
Ready to Build?
Start with a free phone conversation. We'll learn about your project, answer your questions, and help you understand what's possible. No pressure, no high-pressure sales tactics.
4.9 stars on Google • 101 Google reviews • MHIC #91686 • Locally owned and operated
Service Area
Custom Design & Build is a local, family-run deck builder based in Fallston, Maryland. We are fully licensed under MHIC #91686 and bring 30+ years of outdoor living expertise to every project. We design and build custom decks across Harford, Baltimore, and Cecil County, including Bel Air, Forest Hill, Fallston, Aberdeen, Havre de Grace, Joppa, Jarrettsville, Edgewood, Towson, Cockeysville, Perry Hall, White Marsh, Elkton, North East, and Chesapeake City. If your town is not listed, reach out and we will let you know if we cover your area.
