2026 deck prices for Milwaukee-area planning
None of these numbers are quotes. They come from published cost guides, and this referral site does not set prices. A Milwaukee builder may land above or below them after seeing the yard.
| What | Published figure | From |
|---|---|---|
| Any new deck, U.S. average | $8,323 typical; middle range $4,339 to $12,652; roughly $30 to $60 a sq ft | Angi |
| Treated wood, Wisconsin | $25 to $45 a sq ft, installed | Wis. Homeowners Guide |
| Composite, mid-grade, Wisconsin | $45 to $65 a sq ft, installed | Wis. Homeowners Guide |
| Composite, premium, Wisconsin | $60 to $90 a sq ft, installed | Wis. Homeowners Guide |
| PVC or aluminum boards, Wisconsin | $55 to $85 a sq ft, installed | Wis. Homeowners Guide |
| Composite, U.S. range | $25 to $54 a sq ft | Angi |
| A set of stairs | $600 to $1,800 | Wis. Homeowners Guide |
| Pergola overhead | $3,000 to $8,000 added | Wis. Homeowners Guide |
| Repairs, U.S. | $800 to $3,500 | Angi |
| Stain or seal an old deck, U.S. | stain $550 to $1,250; seal $550 to $1,330 | Angi |
Sources: Angi, “How Much Does It Cost to Build a Deck? [2026 Data]” (updated Sep 24, 2026) · Wisconsin Homeowners Guide, “New Deck Cost in Wisconsin: 2026 Price Guide” (July 7, 2026).
Permit fees we found
| Where | Fee | From |
|---|---|---|
| Wauwatosa | Flat $80 deck permit; about two weeks for plan review | City of Wauwatosa |
| Brookfield | $125 permit plus $50 nonrefundable minor plan review; $35 recording fee if the survey is over a year old | City of Brookfield fact sheet |
| U.S. typical | $230 to $500 | Angi |
Sources: City of Wauwatosa, Decks · City of Brookfield Inspection Services, Decks fact sheet (Jan 2026). Checked November 9, 2026. Confirm current requirements with your building inspector.
Size examples (Angi, national)
| Deck | Angi range |
|---|---|
| 120 sq ft (10×12) | $3,600 to $7,200 |
| 144 sq ft (12×12) | $5,760 to $8,640 |
| 192 sq ft (12×16) | $5,400 to $10,800 (Wisconsin guide by material: treated $4,800 to $8,600, mid composite $8,600 to $12,500, premium $11,500 to $17,000) |
| 320 sq ft (16×20) | $12,800 to $19,200 |
| 400 sq ft (20×20) | $16,000 to $24,000 |
Stairs, guards, height and extras are on top of these.
What pushes a Milwaukee deck price up
- Square feet times material. The two biggest inputs in both guides.
- Height off the yard. Angi says second-story decks cost much more than ground-level ones.
- Footings. Below frost or 48 inches under the state appendix; Brookfield lists shallow piers among common failures.
- Stairs and levels. The state appendix flags stairs for multi-level decks as loads that may need engineering.
- Roofs and hot tubs. Over 40 psf of concentrated load needs engineering.
- Survey and plans. Waukesha, Wauwatosa and Brookfield ask for a survey with the permit; budget for one if you do not have it.
- Tear-out and tight access. Angi notes removal and hard-to-reach yards add labor.
Sources: Wisconsin Uniform Dwelling Code, SPS 325 Appendix B · City of Waukesha, Residential Decks · City of Wauwatosa, Decks · City of Brookfield Inspection Services, Decks fact sheet (Jan 2026). Checked November 9, 2026. Confirm current requirements with your building inspector.
Reading a proposal
- Board line and color, framing lumber, footing count and depth.
- Guards, stairs and any tear-out, priced as lines.
- Who applies for the permit and who books each inspection.
- Labor warranty and the board maker’s warranty, both in writing.
- Proof of insurance and two or three recent references.
Resale
National averages from Zonda: wood deck addition $18,263 with 94.9% recouped; composite $25,096 with 88.5%. Source: Zonda, “2025 Cost vs. Value Report” (Sep 18, 2025).
Milwaukee deck cost FAQ
Are these Milwaukee quotes?
No. They are published 2026 figures from Angi and the Wisconsin Homeowners Guide, plus permit fees from two suburbs’ own pages. Only a builder who sees your yard can price the job.
How much is a deck permit around Milwaukee?
Wauwatosa charges a flat $80. Brookfield charges $125 plus a $50 plan review fee. Other cities set their own fees, and Angi’s national range is $230 to $500.
Why do footings add cost here?
Wisconsin’s deck appendix requires footings below frost or at least 48 inches deep, and Brookfield wants 12 inches of concrete at the bottom. That is more digging than in warmer states.
Composite or treated wood?
Composite costs more up front: $45 to $65 a square foot for mid-grade in Wisconsin, against $25 to $45 for treated wood. Wood needs regular sealing or stain; composite needs less.
Does a deck pay back at sale?
Zonda’s 2025 report puts a wood deck addition at $18,263 with 94.9% recouped, and composite at $25,096 with 88.5% recouped, as national averages.
When is a good time to book?
Angi says fall and winter can bring better prices as demand drops. Ask how the builder handles footing holes in frozen ground.