

At Alliance Deck Builders of Maryland, we specialize in building high-quality detached garages and sheds that look great and last for decades. Whether you need extra vehicle storage, a backyard workshop, or a custom shed for lawn tools, we design each structure to suit your property, budget, and goals. Our team handles everything from concrete pads to roofing, delivering practical, attractive builds that increase home value and function.
Detached Garage & Shed Builders in Maryland
Our custom detached garages and sheds are built to handle Maryland’s four-season climate, giving homeowners a reliable space for storage, hobbies, or vehicles. We design each structure around your lot, match your home’s style, and use weather-tested materials that withstand humidity, snow, and heat. Whether you're after extra space or full-scale function, our builds are made to perform — and built to last.
Fully customizable garage and shed layouts
Built to local zoning and permit requirements
Weatherproof materials and expert craftsmanship

Detached garages and backyard sheds offer more than storage — they expand your home’s functionality. Whether you're looking to protect vehicles, create a hobby space, or store tools and lawn equipment, we tailor every build to meet your exact needs. Our team ensures each structure complements your home’s exterior with siding, trim, and roofing that blend seamlessly. From modern metal garages to rustic garden sheds, we bring your vision to life with durable, weather-resistant materials that are built to stand the test of time.

Not sure where to begin? Our team makes it simple. We walk you through every step — from permits and foundation prep to materials and final construction. Whether you’re adding a workshop, need secure storage, or want to increase resale value, we design with your goals and your property in mind. Let’s turn that empty space into something built for everyday use.
Every garage or shed we build is engineered to meet local Maryland building codes and weather demands. We work with pressure-treated lumber, concrete, or metal — always based on what’s best for your needs and location. The result? Long-term function, curb appeal, and peace of mind knowing it’s done right the first time.

Built to Withstand Maryland Weather: Each garage or shed is crafted with durable, weather-resistant materials rated for local wind, rain, and temperature swings.
Custom Designs for Any Property: We match rooflines, siding, and trim to your home — no cookie-cutter structures, only well-integrated designs.
Expert Permitting & Site Prep: We handle the entire permitting process, local code compliance, and foundation preparation from start to finish.
Full-Service Construction Process: From design to final trim, our team manages every detail with clear timelines and consistent communication.
Secure, Long-Term Storage Solutions: Whether for tools, vehicles, or garden gear, we build safe, functional spaces that add lasting property value.
Don't worry, we can help!
We don’t just build structures — we create reliable, code-compliant spaces that give you more freedom at home. Our detached garages and sheds are fully customizable, easy to maintain, and backed by a smooth, transparent build process. When you work with our Maryland-based team, you get experience, honesty, and results that last.
Free site evaluations and planning
Clear pricing with no hidden fees
Backed by warranty and workmanship guarantee
build. We make it easy to upgrade your property with a reliable, long-lasting detached garage or shed. Start with a free quote, and let us show you how smooth the process can be — from zoning to final trim.
We get it — building a garage or shed comes with questions. Here are answers to help you plan smarter and feel confident from the start.
Most projects take 1–3 weeks, depending on size, materials, and site conditions. We’ll give you a timeline before construction begins.
Yes — we handle all permitting to ensure your structure meets local zoning and building codes before breaking ground.
Absolutely. We offer full customization to blend garages and sheds with your home’s exterior — including siding, trim, and shingles.
We include design, permitting, foundations, framing, roofing, siding, doors, and final walkthroughs — no guesswork.

We design and build custom decks tailored to your property, budget, and vision — delivering long-lasting outdoor spaces with purpose and style.

Upgrade to low-maintenance, weather-resistant composite decking. Ideal for Maryland’s seasons with premium looks that last for decades.

Natural beauty, built to code. Our pressure-treated and cedar decks bring warmth and tradition to your outdoor living space.

We repair loose railings, cracked boards, and sagging frames — reinforcing structural safety while preserving your deck’s original look.

Renew your aging deck with deep cleaning, sanding, and staining. We revive your outdoor space with safe, sealed, and beautiful finishes.

Add dimension with multi-tier decks for elevated views, built-in zones, and seamless access to yards, pools, or walkouts.

Expand your outdoor space or replace old decking surfaces with upgraded materials and framing for a fresh, sturdy, and seamless finish.

Add year-round comfort with covered decks and roof systems that protect from rain, sun, and snow — without blocking airflow or visibility.

Create a bug-free, shaded space with screened-in porches or full sunrooms. Great for reading, relaxing, or hosting without the weather risk.

Host like a pro with built-in outdoor kitchens, grills, counters, and dining zones — custom-built for function, style, and easy cleanup.

Add shade, structure, and visual appeal to your yard or deck with expertly crafted pergolas, arbors, and gazebos built to match your layout.

We build secure, slip-resistant decking around pools and hot tubs for safety, beauty, and year-round relaxation in your own backyard oasis.

We build detached garages and storage sheds that match your home’s style while offering secure, weather-protected space for vehicles or tools.

Safety meets style with our custom railings and stairs. Choose wood, cable, or metal systems to match your deck’s look and meet code.

We build outdoor spaces for Maryland restaurants, rooftops, and office patios — built to handle foot traffic and stay beautiful over time.

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
We’re ready when you are. Whether you’ve got detailed plans or just a rough idea, we’ll help turn it into a finished outdoor space you’ll love for years. From your first call to your final walkthrough, we keep it simple, honest, and built to last.

Copyright 2026. Maryland. All Rights Reserved.