Licensed deck contractors and builders serving Milwaukee, Wisconsin. License data and local permit requirements.
Last updated: April 2026 · Cost data from RSMeans & BLS regional indices · Permit data from official city .gov sources
West Allis custom deck and porch builder founded in 2003, working with TimberTech Advanced PVC, Prowood lumber, and bespoke metal railing designs across the Milwaukee area.
Milwaukee-area design-build deck company specializing in custom deck designs, pergolas, pool decks, and 3-season rooms serving Waukesha, Brookfield, Franklin, and surrounding suburbs.
Milwaukee deck builder offering custom wood, composite, Trex, and metal decks along with deck painting, staining, and repair services.
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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 Milwaukee, Wisconsin 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 Milwaukee based on Wisconsin labor rates and material prices. Costs are for a typical 300 sq ft deck with railing.
| Service | Low | Average | High |
|---|---|---|---|
| Pressure-Treated Wood Deck | $5,616 | $7,200 | $9,504 |
| Cedar Deck | $7,800 | $10,000 | $13,200 |
| Composite Deck (Trex, TimberTech) | $10,920 | $14,000 | $18,480 |
Costs are estimates based on Wisconsin regional data. Actual prices vary by project complexity, site conditions, and contractor. Permit fees ($75–$500 in WI) are not included.
Get a Personalized EstimateMilwaukee requires a building permit for most deck projects. Here are the key details:
Fees
See city fee schedule (Chapter 81 of Milwaukee Code of Ordinances).
Processing Time
Varies. Plan review appointments available through Qless online system.
Exemptions
Repair or replacement of decking on porches, decks and balconies requires a permit. Check with DNS for specific exemptions for minor work.
Building Code
Wisconsin Uniform Dwelling Code with Milwaukee amendments
Milwaukee-Specific Rules
The average cost to build a 300 sq ft deck in Milwaukee ranges from $5,616 for pressure-treated wood to $18,480 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 Milwaukee, 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 Milwaukee 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 Wisconsin licensing board, check Google reviews and BBB ratings, ask for 3+ written quotes, and request references from recent projects in the Milwaukee 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 Wisconsin due to low maintenance and 25-30 year lifespan. Pressure-treated wood is the most affordable at $18-$45 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 Milwaukee 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 Milwaukee and request at least 2-3 references.
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Fees: See city fee schedule (Chapter 81 of Milwaukee Code of Ordinances).
Timeline: Varies. Plan review appointments available through Qless online system.
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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.