Deck builders · Eau Claire, WI
We build decks that handle Wisconsin weather in Eau Claire, Altoona, Chippewa Falls, and throughout the area.
Get my free quoteA deck in Eau Claire needs to survive hard freezes, heavy snow loads, and the kind of weather swings that go from 8°F in January to 83°F in July. We build decks with footings that reach 48 inches below grade to get under the frost line, proper flashing to keep water out, and materials that hold up to the freeze-thaw cycles we get every spring. Whether your home is in the Third Ward with its 1880s houses, out in one of the newer south-side subdivisions, or anywhere in the Chippewa Valley, we size the structure to fit your property and your plans.
Eau Claire sits where the Eau Claire and Chippewa Rivers meet, and that means sandy loam soil that drains fast but also heaves when it freezes. We've worked through floods like the big one in 1993, windstorms like the derecho in 1980, and the usual run of winter weather that dumps 46 inches of snow most years. Your deck needs to be anchored right and built to code, and we pull every permit through the city or county so the inspections happen on schedule.
We work with pressure-treated lumber, cedar, and composite materials. Typical projects in the area run from around $7,000 for a small ground-level deck to $25,000 or more for larger elevated structures with stairs and upgraded railings. Prices depend on size, material choice, how high off the ground it sits, and site access. We give you a clear estimate after we see the property and talk through what you want.
We design and build decks from the ground up, with frost footings set to 48 inches, proper ledger attachment to your house, and framing that meets Wisconsin building code. Every project gets a permit and inspections to make sure it's done right.
Composite and PVC boards resist rot, don't need annual staining, and hold up better to the wet springs and cold winters we get here. We install Trex, TimberTech, and other brands that carry solid warranties.
Wood decking costs less up front and gives you options for stain color. Pressure-treated lumber handles ground contact and moisture, while cedar offers natural resistance to insects and a cleaner look if you want to keep it natural or stain it.
If your deck has rotted joists, loose railings, or boards that are splitting after years of winter weather, we assess the structure and fix what needs fixing. Sometimes a full rebuild makes more sense than patching old framing.
Code requires railings on any deck more than 30 inches off the ground, and stairs need proper rise and run dimensions. We install wood, composite, aluminum, and cable railing systems, plus build stairs that handle ice and snow.
Most decks in Eau Claire need a building permit, especially if they're attached to the house or elevated. We handle the application through the city's online system, submit the required framing plan, and schedule inspections so you don't have to.
Eau Claire requires footings below the 48-inch frost line, proper flashing and ledger bolts for attached decks, and inspections at multiple stages. We build to the Wisconsin Uniform Dwelling Code and pull every permit so your deck passes inspection the first time.
Decks here take a beating from freeze-thaw cycles, snow load, and summer storms. We use galvanized or stainless fasteners, set posts in concrete below frost depth, and detail the ledger connection to keep water from getting behind your siding.
We give you a written estimate that lists materials, labor, and permit costs. No surprises, no pressure. If the site has challenges like slope or access, we tell you up front what that means for the price.
We've built decks throughout Eau Claire, Altoona, Chippewa Falls, and the surrounding towns. If you want to talk to past customers or see finished projects in your neighborhood, just ask.
Eau Claire sits in USDA hardiness zone 4b with a frost-free season that runs from mid-May to late September. January lows average around 5°F and we see 30 or more nights below zero most winters, which means frost penetrates deep into the ground. That's why the building code here requires footings at least 48 inches below grade. The soil is mostly sandy loam that drains quickly but shifts during freeze-thaw cycles, so proper footing depth and concrete placement matter. Decks built on shallow footings or deck blocks will heave and crack within a few years.
The Chippewa and Eau Claire Rivers have flooded multiple times over the years, with major events in 1884, 1941, 1967, 1993, and smaller floods in between. The derecho windstorm in 1980 brought triple-digit winds and caused millions in damage across the valley. More recently, tornadoes hit the area in 1980, 1982, 1983, and 2023. Most homes in Eau Claire were built between 1940 and 1999, with a good number of older houses in neighborhoods like the Third Ward and Randall Park dating back to the 1880s and early 1900s. If you're adding a deck to an older home, we check the siding and rim joist condition before we bolt the ledger board on. The city handles permits through an online system and requires a deck framing plan and inspections, which we coordinate as part of the job.
Typical deck costs in the Eau Claire area run from around $7,000 to $15,000 for a basic pressure-treated wood deck in the 200 to 300 square foot range, and from $15,000 to $30,000 or more for larger composite decks with stairs, elevated framing, and upgraded railings. Price depends on the size of the deck, material choice, height above grade, whether you need stairs, railing style, and site conditions like slope or access. Composite and PVC decking cost more up front but don't require staining or sealing every few years. Pressure-treated lumber is the most budget-friendly option but needs regular maintenance. Permit fees, footings that go 48 inches deep, and labor to handle Wisconsin winters all factor into the final number. Every project is different, so we give you a written estimate after we see your property.
Based around Eau Claire, WI, we also take jobs in these nearby towns. Put your town on the form and we will tell you right away if we can help.
Yes, most decks in Eau Claire require a building permit, especially if the deck is attached to your house or elevated more than 30 inches above grade. The city requires a completed application, a deck framing plan, and payment of permit fees through their online system. We handle the permit application and coordinate inspections as part of our service.
Footings must go at least 48 inches below grade to get below the frost line. Eau Claire winters regularly drop below zero and frost penetrates deep into the soil, so shallow footings will heave and shift. We dig to the required depth and pour concrete footings that meet code.
Composite and PVC decking handle freeze-thaw cycles better than wood and don't need annual staining, but they cost more up front. Pressure-treated lumber is the most affordable option and holds up fine if you maintain it with stain or sealant every couple of years. Cedar is a middle option that resists rot naturally and looks good if you keep it sealed.
Most decks take one to two weeks from start to finish, depending on the size, material, and weather. We need to schedule inspections for the footings and again at the end, so permit turnaround time and inspector availability affect the timeline. Larger or more complex decks with multiple levels or custom features take longer.
Yes, we build decks on sloped lots all the time. Slopes often require taller posts, additional bracing, and longer stairs, which adds to the cost. We assess the grade during the estimate and design the deck to fit the terrain and meet code for post height and lateral bracing.
Composite decking does absorb more heat than wood, especially darker colors. Newer composite boards are engineered to stay cooler, and lighter colors reflect more sunlight. If heat is a concern, we can talk through material options and colors that work better for sun exposure.
Tell us what you need and where. We usually reply within one business day. A photo helps us give you a faster, more accurate quote.
No obligation and no pressure.
EAU CLAIRE