Professional Deck Builder in Waukesha, WI

Custom Decks, Porches, and Outdoor Living Spaces
Waukesha is one of the larger cities in Waukesha County, and the housing stock reflects that. Older brick homes near downtown, ranches and split-levels in established postwar neighborhoods, and newer construction pushing out toward the city's edges. Each type of property comes with its own site conditions, lot sizes, and design considerations.
Brew City Builders has been the go-to
deck builder in Waukesha and the surrounding area since 2003. We're based in West Allis, about 20 minutes east on I-94, and we've built on properties throughout Waukesha for over two decades.
Start at the Showroom
Before anything gets decided, come see the materials in person. It makes a bigger difference than most people expect.
Colors look completely different on a screen than they do under real lighting next to your chosen railing system. A railing finish you think you love online might feel cheap in person. One you dismissed in a photo might be exactly right when you touch it.
At our showroom you can:
- Walk through every Timbertech Advanced PVC color under real lighting.
- Compare Westbury aluminum and Fortress steel railings side by side.
- Look at Dan's hand-fabricated metalwork to see what's possible outside a standard catalog.
Amy then builds a 3D rendering of your actual Waukesha property with your chosen materials so you can see the finished design before anything gets built.
Showroom hours:
1900 S 74th St. in West Allis
Monday - Friday: 8:00 AM to 4:00 PM
Saturday and Sunday: Closed
Deck Building Services In Waukesha
Custom Decks
Custom Decks built with Timbertech Advanced PVC or Prowood materials
Porches
Porches designed to complement your home's architecture
Commercial Decks
Commercial Decks built for restaurants, businesses, and other high-traffic spaces
Outdoor Lighting
Outdoor Lighting Solutions to extend the usability of your outdoor space
Every Project Starts at Your Property
Good deck design starts with your yard, not a catalog. Before we draw anything up, we come to your Waukesha property and spend time understanding it.
Waukesha lots vary a lot depending on the neighborhood. Older areas near downtown tend to run smaller with mature trees and tighter setbacks. Newer developments on the outer edges have more room to work with. Either way, the design needs to fit what's actually there rather than what might work on a generic lot.
We look at grading, drainage, sun exposure, how the space connects to the inside of the home, and what you actually want to use it for. That conversation shapes everything from the deck's footprint to where the stairs land. Reach out today to start planning your Waukesha project.
Get a Free Estimate
Composite Deck Installation
Composite decking is the most popular choice for Waukesha homeowners who want a low-maintenance outdoor space that holds up through Wisconsin winters. As your local deck company, we use Timbertech Advanced PVC exclusively for all composite deck installations.
Timbertech Advanced PVC is 100% PVC with no wood fibers.
Here's what that delivers in Wisconsin's climate:
- Won't crack, warp, or splinter through freeze-thaw cycles.
- 15 color options covering warm wood tones, cool grays, and contemporary shades.
- Stays clean with soap and water, no staining, sealing, or sanding.
- UV-resistant so the color holds year after year without fading.
Standard wood decking in Wisconsin needs staining or sealing every two to three years to hold up. Timbertech skips all of that and still outperforms wood in every category that matters here.

Wood Deck Installation in Waukesha
Not every Waukesha homeowner wants composite. Some prefer the look and feel of real wood, and that's a completely valid choice. For wood deck installation, we use ProWood treated pine.
ProWood is infused with iron to give it a cedar-like appearance with better rot resistance than standard treated lumber. Installed correctly with proper flashing and quality fasteners, it lasts for decades and delivers the natural wood character a lot of homeowners are after.
Regardless of which surface material you choose, every deck we build is framed with KDAT lumber:
- Standard pressure treated framing arrives wet and shrinks as it dries on site.
- That shrinking is what causes boards to go uneven and decks to sag early.
- KDAT is kiln dried before delivery, already stable when we install it.
- Your framing holds its shape and your deck stays level long-term.
That framing choice alone separates a deck that lasts 40 years from one that needs attention at 10.
Porch Installation in Waukesha
A porch gives you covered outdoor space that works year-round, not just on clear summer days. It also changes how your home looks from the street in a way a deck in the backyard simply doesn't.
Waukesha has strong architectural variety across its neighborhoods, and a porch needs to respect that. An older brick home near downtown calls for a completely different approach than a newer colonial in a subdivision. We design every porch around the specific home it's going on.
The three types we build most often:
- Front porches that give the home a proper covered entry and improve curb appeal without looking like an add-on.
- Screened porches that make summer evenings comfortable without the bugs, extending usable outdoor time well into fall.
- Three-season porches with operable windows that function like an extra room from early spring through late fall.
Every
porch installation includes correct flashing, proper ledger attachment, and trim work that ties into your existing exterior so it looks like it was always part of the home.

Pergolas and Gazebos in Waukesha
An open deck is great, but adding a pergola or gazebo gives your outdoor space a sense of structure and definition that changes how the whole area feels.
Here's how the options break down:
- A pergola has open beams overhead that provide partial shade and a structure for lighting, ceiling fans, and climbing plants. It works best over a dining or lounge area where some overhead presence makes the space more comfortable without fully enclosing it.
- A gazebo is a fully roofed freestanding structure. It's a dedicated outdoor room separate from the main deck, ideal for larger Waukesha lots where there's room to spread different activities across the yard.
- Arbors are smaller accent pieces, typically used over a walkway or garden gate, that add architectural detail without a major build.
We design all three to work with the overall outdoor space rather than standing out as something separate.
Commercial Deck Building in Waukesha
Waukesha has a real restaurant and business scene, and outdoor seating is part of staying competitive. A commercial deck that holds up under daily use without constant maintenance is an asset. One that needs attention every season is not.
Here's what goes into every commercial project we build:
- Heavier structural framing than a residential build to handle real commercial occupancy loads.
- Timbertech Advanced PVC on every surface, handles heavy traffic and weather without sanding or sealing.
- Layouts designed around customer flow and service access, not just aesthetics
- Railing systems that meet commercial safety code requirements.
If your existing commercial deck needs repair rather than full replacement, we'll give you an honest assessment of which makes more sense before recommending anything.
Custom Railings and Metalwork
Railings are the finishing detail that pulls the whole deck together. Choose the wrong system and it's the first thing people notice. Choose the right one and the whole outdoor space feels considered.
Three options depending on what you're after:
1. Westbury aluminum is rust-proof, zero maintenance, and available in multiple colors to complement your home's exterior. Clean lines, meets code, works with
any architectural style.
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2. Fortress steel carries more visual weight than aluminum and comes in styles from contemporary to traditional. The powder-coated finish holds up through years of outdoor exposure without ongoing upkeep.
3. Dan's custom fabricated steel is built by hand specifically for your project. Family crests worked into railing panels, geometric screens, nature-inspired patterns, designs that become a genuine feature of the property rather than a background detail.
Get a Free Estimate Today!
As a trusted deck building company committed to creating outdoor spaces that feel well planned, well built, and made to be enjoyed for years to come. Whether you’re starting with a simple idea or a detailed vision for your home or commercial property, our team is ready to guide you through the process with experience, clear communication, and quality craftsmanship. Reach out today to schedule your free estimate!



How It Works
From the first walk around your yard to the final walkthrough on your finished deck, here's what to expect.
Step 1: Free consultation at your home.
We visit your Waukesha property, walk the site, and talk through what you want without any sales pressure.
Step 2: Showroom Visit & 3D Design
See materials in person at our showroom and work with Amy on a detailed rendering of your finished project.
Step 3: Clear Written Proposal
Every cost, material, and timeline spelled out clearly before anything starts.
Step 4:
Professional Build
We handle permits, inspections, and keep your property clean throughout construction.
Step 5:
Final Walkthrough
Nothing is done until you're completely satisfied.









