Deck, Sunroom & Pergola Builders in Baltimore County, MD

Why Baltimore County homeowners hire Custom Design & Build

Baltimore County is one of our busiest service areas. The mix of mature Towson neighborhoods, Hunt Valley estates, and family homes in Perry Hall and White Marsh keeps every week different. Baltimore County's permit process is stricter than Harford's, and that is a good thing when the work is built right. We handle the plan submissions, the reviews, and the inspections start to finish, so you never end up chasing down the county.

We are MHIC #91686-licensed, Trex Pro Platinum, an authorized Sunspace dealer, and Azenco-certified for motorized louvered pergolas. Every Baltimore County project is custom-designed, permitted, and built end to end by our own crews. No subcontracted middlemen.

Services we build in Baltimore County

Towns we serve in Baltimore County

Every town has its own service-area page with local notes on neighborhoods, permits, and past projects.

• Towson, MD
• Cockeysville, MD
• Perry Hall, MD
• White Marsh, MD

Permits and inspections in Baltimore County

Baltimore County requires permits for decks, sunrooms, screen rooms, and most roof structures. We pull them all. We also coordinate with your HOA if there is design review, which is common in Perry Hall, Honeygo, and Stoneleigh. Greenhouses over 120 square feet need a permit, and anything sited closer than 5 feet to a property line triggers a fire-rated wall requirement we design around up front.

For a full walk-through of what a permit application looks like on a three-season room, read our permit and zoning checklist.

Pricing and next step

Most Baltimore County sunroom, deck, and pergola projects fall between $20,000 and $150,000+, depending on size, materials, and site conditions. Use our interactive pricing calculator for a 60-second ballpark, or start a free phone conversation.