Licensed deck contractors and builders serving Baltimore, Maryland. License data and local permit requirements.
Last updated: April 2026 · Cost data from RSMeans & BLS regional indices · Permit data from official city .gov sources
Local context for Baltimore
Baltimore permits are issued by the Department of Housing and Community Development (DHCD) through the Baltimore e-Permits Accela portal. Baltimore enforces the Maryland Building Performance Standards, based on the IBC/IRC cycle, plus local Baltimore amendments. Baltimore also has one of the oldest and densest rowhouse building stocks in the country, and Commission for Historical and Architectural Preservation (CHAP) review applies in 30+ designated districts.
Permits filed through Baltimore City Department of Housing and Community Development (DHCD) · official portal
Family-owned deck builder since 1999 serving Baltimore and surrounding counties.
Deck and fence contractor serving Baltimore and statewide Maryland communities.
Deck and fence contractor serving Baltimore and throughout Maryland and Delaware.
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A short checklist of things to verify before you sign a contract or hand over a deposit. These apply whether you find your contractor here, on Angi, or anywhere else.
Every contractor we list is verified against public records, but verification is not a quality guarantee. Run through this checklist on any contractor you are seriously considering.
Follow these steps to find a reliable, licensed deck builder in the Baltimore, Maryland area.
Verify licenses and insurance
Check with your state licensing board. Ensure they carry general liability and workers compensation insurance.
Get 3+ written estimates
Compare detailed quotes that break down materials, labor, permits, and timeline. Avoid verbal-only estimates.
Check reviews and references
Look at Google reviews, BBB ratings, and ask for 2-3 references from recent local projects.
Confirm who pulls the permit
A reputable contractor pulls the building permit themselves — never agree to skip the permit.
Review the contract carefully
The contract should include scope of work, materials, timeline, payment schedule, warranty, and change order process.
Never pay more than 30% upfront
Standard payment schedules are 10-30% deposit, progress payments, and final payment upon completion and inspection.
Average deck building costs in Baltimore based on Maryland labor rates and material prices. Costs are for a typical 300 sq ft deck with railing.
| Service | Low | Average | High |
|---|---|---|---|
| Pressure-Treated Wood Deck | $6,458 | $8,280 | $10,930 |
| Cedar Deck | $8,970 | $11,500 | $15,180 |
| Composite Deck (Trex, TimberTech) | $12,558 | $16,100 | $21,252 |
Costs are estimates based on Maryland regional data. Actual prices vary by project complexity, site conditions, and contractor. Permit fees ($86–$575 in MD) are not included.
Get a Personalized EstimateBaltimore requires a building permit for most deck projects. Here are the key details:
Fees
$10 for each 100 square feet or fraction of 100 square feet of deck area above footing.
Processing Time
Most permits are valid for 6 months. Processing time varies.
Exemptions
A permit is required to build a deck on a residential house. Check with DHCD for any specific exemptions.
Building Code
International Building Code with Baltimore City amendments
Baltimore-Specific Rules
The average cost to build a 300 sq ft deck in Baltimore ranges from $6,458 for pressure-treated wood to $21,252 for composite materials. The final price depends on materials, size, elevation, railing, and whether your project requires a permit. Use our free deck cost calculator for a personalized estimate.
Most cities, including Baltimore, require a building permit for decks that are attached to the house, over 200 square feet, or more than 30 inches above grade. Small, freestanding ground-level decks may be exempt. Contact the Baltimore building department or check our permit guide for specific requirements and fees.
Look for licensed and insured contractors with at least 3 years of experience. Verify their license with the Maryland licensing board, check Google reviews and BBB ratings, ask for 3+ written quotes, and request references from recent projects in the Baltimore area. Never pay more than 30% upfront.
The best material depends on your climate and budget. Composite decking (like Trex or TimberTech) is the most popular choice in Maryland due to low maintenance and 25-30 year lifespan. Pressure-treated wood is the most affordable at $21-$52 per sq ft installed. Cedar offers natural beauty but requires regular sealing.
A typical 200-400 sq ft deck takes 3-7 days to build once the permit is approved and materials are delivered. Permit approval in Baltimore can take 1-4 weeks depending on your local building department's workload. Plan for 4-8 weeks total from signing a contract to project completion.
Ask about their license and insurance coverage, who pulls the building permit, their warranty on labor and materials, a detailed written estimate, their timeline, and whether they use subcontractors. Also ask to see photos of recent deck projects in Baltimore and request at least 2-3 references.
The Commission for Historical and Architectural Preservation reviews exterior changes to designated landmarks and properties in local historic districts. If your Baltimore property is in a CHAP district, exterior work needs CHAP approval before DHCD issues a permit.
Older rowhouses often reveal deteriorated joists, failed brick repointing, or hidden plumbing once walls are open. Experienced contractors price in contingency, but the age of the stock (much of it pre-1920) means surprises are normal.
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Fees: $10 for each 100 square feet or fraction of 100 square feet of deck area above footing.
Timeline: Most permits are valid for 6 months. Processing time varies.
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PermitDeck is a directory service, not a referral service. We do not guarantee any contractor's work quality, licensing status, or availability. Listings may include unverified information. Always verify credentials independently, check references, and get multiple written quotes before hiring any contractor.