Deck Builders Baltimore County
Can Trust

Enjoy Professional Service and Expert Craftsmanship That Lasts with Mount Joy Company

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Check Out Examples of Our Past Projects! 

two hammers and a nail in between
Family Owned:

Mount Joy Company is a local, family-owned and operated business. We're serious about taking care of our customers as if they're one of our own - and that includes treating your time and your property with respect.

two hammers and a nail in between
Satisfaction Guarantee:

We stand behind our work forever. In the unlikely event of an issue, a single call ensures we're back, fixing it right away. Our commitment is not just to build superior decks, but to leave you with lasting satisfaction.

two hammers and a nail in between
Turn-Key Service:

Our turn-key pricing covers all aspects of your project. This includes labor, materials, debris removal, site cleanup, necessary permits, inspections, and associated fees and taxes for a hassle-free experience from start to finish.

Your No-Nonsense
Baltimore County Deck Builders

At Mount Joy Company, we’re not your average Baltimore deck builder. We’re a hard-working home improvement contractor who delivers the highest-quality carpentry work, 100% customer satisfaction, and outstanding customer service. Our commitment is simple: we’ll be there when we say we will, work diligently and courteously on your project, and leave behind nothing but a beautiful deck and your satisfaction.

large composite deck with white railings on a single family home

Proudly Serving All of Baltimore County 

Our service area spans the whole county, including Freeland, Parkton, Sparks, Cockeysville, Timonium, Towson, Perry Hall, Parkville, Owings Mills, Reisterstown, Pikesville, and beyond.

view of the staircase on a composite pool deck project

You Dream It, We Build It.

Our Top-Quality Custom Decks

At Mount Joy Company, we offer custom deck building services designed to fulfill your vision and fit your budget. Our decks are built with meticulous attention to detail, so they last a long time with the least maintenance possible. 

Here are just some of the types of decks we provide:

Platform Decks

Raised Decks

Multi-Level Decks

Wraparound Decks

Pool Decks

Roof Decks

Composite Decks

Wood Decks

Freestanding Decks

And More!

Working With Us

Our process is designed to provide you with a stress-free experience from start to finish.


Our process kicks off with an initial meeting to understand your project needs. Once you accept our estimate, we collaborate to shape a concept that aligns with your vision, followed by material selection.

Planning and Permits

 We handle the bureaucratic details, acquiring all necessary permits to ensure compliance with local regulations. A detailed project timeline keeps you informed about milestones and progress.


From foundation to finishing touches, each element is meticulously executed. We prioritize timely project completion, understanding your eagerness to enjoy your new space.

Finishing Touches

Before unveiling your new addition, we conduct a thorough final inspection to ensure that your deck, screened porch, or garden structure not only looks impressive but stands the test of time.

Contact Us For a FREE Estimate On Your New Deck

Ready to upgrade your outdoor living space? Whether you want to enhance your home with a top-quality composite deck, multi-tiered natural wood deck, rooftop deck, or anything else, we’ve got you covered. Reach out to our team of professionals, and let’s get started making your vision a reality. 

Reviews From Our Happy Customers

Our expertise has earned us wonderful reviews from Baltimore County homeowners. If you’d like to leave a review on a recent deck or outdoor structure project we’ve done for you, head to our Google Business Profile. We value your feedback!

multi-tiered vinyl deck attached to a blue single family home.

Why Choose Mount Joy Company?

At Mount Joy Company, we don’t raise our deck construction prices just so we can lower them and make you feel like you got a deal. As a dedicated deck builder in Baltimore County, we’re committed to integrity throughout the pricing process. We stand behind our rates and encourage you to get 4-5 quotes so you have confidence in our prices.

Quality and attention to detail is non-negotiable. When building custom decks, we use superior construction techniques and employ hard-working craftsmen who build with integrity. Our commitment to excellence is why we confidently offer a 100% satisfaction guarantee.

We respect your space and your time. During the deck construction process, you’ll never have to deal with leftover wood or debris. In addition, we understand you may need quiet at times and we’re happy to accommodate nap or work schedules!

We are committed to clear communication with our clients. Our team is always available to address your concerns. Whether through phone calls, texts, or email, we’re here to ensure your peace of mind.

Past Projects

View Our Custom Decks

Our crew strives to leave all of our customers extremely pleased with their new and improved outdoor living space! We’re confident you’ll be satisfied with our deck installation process from start to finish. Click the photos below to get a closer look at our Baltimore County deck-building projects. 

Get Your Backyard Ready for a New Beginning!

From small platform decks to multi-tiered masterpieces, we can help you turn your backyard into an inviting escape you’ll never want to leave. 

Contact us to get started today!