Deckorators Certified Elite Contractor · NADRA Certified Deck Inspectors · A+ BBB Rating · Family Owned · Serving Sun Prairie From East Madison
Sun Prairie sits on silt-loam soil over glacial till in a cold, snowy stretch of Dane County, and the city layers strict deck-construction standards on top. Building here takes local knowledge, not a generic plan.
Wisconsin’s Uniform Dwelling Code requires footings to sit below frost penetration or at least 48 inches below grade, whichever is deeper, and it prohibits placing footings on frozen material. Footings poured shallower will heave through the region’s constant winter freeze and thaw, twisting the frame and pulling the deck off the house. We pour to the full depth.
Sun Prairie is the USDA type location for the Dodge silt loam series, with silt-loam topsoil over a clay-bearing till substratum. The code requires footings to bear on soil rated for at least 2,000 pounds per square foot unless engineered, which the local silt-loam-over-till generally meets, while soft, organic, or filled areas need engineered design. We size each footing to the lot’s actual soil.
Sun Prairie winters bring heavy snow and ice load, repeated freeze-thaw cycling, and hard freezes that can run into April, with 33 to 36 inches of annual precipitation. An underbuilt frame fails under a heavy winter. We frame for the local snow load and build with materials that take the cycle.
Sun Prairie requires deck construction to follow one of three accepted standards, Wisconsin Admin Code SPS 321.225, the SPS 320 to 325 Appendix B and C, or the DCA6 prescriptive guide. The city issues single-source permits and reserves the right to double the permit fee and fine per day for starting without one. We build to an accepted standard and pull the permit before any work begins.
Sun Prairie also has developer-built communities like Smith’s Crossing, and the City and the surrounding Town permit differently, both of which we cover below.
New residential decks in wood, pressure-treated lumber, cedar, redwood, exotic hardwood, composite, and PVC, in platform, raised, multi-level, freestanding, rooftop, pool, curved, cantilevered, covered, and screened configurations, framed in wood, steel, or aluminum and set on concrete footings or metal helical piers.
As a Deckorators Certified Elite Contractor, we install Trex, TimberTech, Deckorators, Fiberon, MoistureShield, and Eva-last surfaces that handle Wisconsin’s freeze-thaw and never need staining.
Railings in wood, composite, glass, cable, aluminum, steel, vinyl, and wrought iron with Trex, TimberTech, Deckorators, Viewrail, Keylink, Westbury, AFCO, and Regal Ideas systems, built to code rail heights while keeping sightlines open.
Lighting installation, design, wiring and electrical work, automation, landscape integration, and weather-resistant fixtures with In-Lite, Tru-scapes, Trex, TimberTech, and Deckorators.
A complete under-deck program including drainage systems, ceilings, waterproofing, lighting, enclosed storage, ventilation, insulation, pest prevention, flooring, and railings that turn the space below an elevated deck into a dry, finished living area.
Wood, PVC, fiberglass, composite, and metal pergolas in traditional, attached, freestanding, gable, arched, and custom styles for shade through Sun Prairie’s warm summers.
Porch installation, sunrooms, three-season rooms, and covered and screened porches in wood, composite, PVC, concrete, brick, or stone that stretch the short Wisconsin outdoor season.
Concrete, brick, natural stone, granite, limestone, slate, travertine, and porcelain pavers for patios, walkways and garden paths, driveways, pool decks, fire pit surrounds, and retaining walls.
Firepits and fireplaces, outdoor kitchens, outdoor bars, hot tubs, swim spas, cold plunges, built-in seating, and privacy screens that build out the whole backyard.
As NADRA Certified Deck Inspectors, we inspect decks to code and safety standards and handle resurfacing, remodeling, and additions that extend the life of existing Sun Prairie decks.
The most prominent developer-built community is Smith’s Crossing, a Veridian Homes neighborhood on the east side built across multiple phases including the McCoy Addition. Other developer neighborhoods carry their own HOA structures, and because the city does not register HOA contact information, the recorded declaration for each association is confirmed through the Dane County Register of Deeds.
Wisconsin HOA deck rules commonly cover material type, railing style and color, height limits, screening or skirting, and street visibility, with stricter associations limiting stain colors to a pre-approved palette and requiring drawings and material specs before construction.
Across Wisconsin, association review for a deck generally takes two to six weeks, with most boards meeting monthly, so homeowners should plan for roughly a month of HOA review on top of the city permit window.
The City of Sun Prairie and the surrounding Town of Sun Prairie are distinct jurisdictions with different processes. City properties permit through the Building Inspection Division, while Town properties first need a zoning and land use permit through General Engineering Company. We confirm which jurisdiction a property falls in before anything else.
For city properties, deck permits are issued by the City of Sun Prairie Building Inspection Division, also known as the Department of Building and Code Enforcement, at City Hall, 300 E Main Street, reachable at 608-825-1184. The city issues single-source permits, and permit acquisition is part of what we carry for every project.
When submission requirements are met, permits take 5 to 10 business days for approval. City inspections run weekdays from 9 a.m. to 3 p.m., and the inspector has two business days to inspect before construction continues.
Decks up to 3 feet high may extend within 8 feet of the rear property line, while decks over 3 feet high must stay at least 24 feet from it, and a roof over the deck increases the required distances. Front and street-yard projections must stay at least 15 feet from any street right-of-way, and side-yard setbacks vary, which we confirm with the Building Inspection Division.
The east-side Veridian Homes planned community, where HOA review and material rules drive the deck design.
The downtown mixed-use district and surrounding older homes, where decks are designed to fit established lots.
A residential area served with decks and outdoor living built for the local soil and frost.
Established residential neighborhoods served across the 53590 ZIP code.
The top tier of Deckorators’ contractor program, which qualifies our installs for the manufacturer’s strongest material warranty coverage.
Certified by the North American Deck and Railing Association to inspect decks to current code and safety standards.
More than two and a half decades building decks and outdoor living spaces across the Madison area.
A track record of over 5,000 completed projects.
An A+ rating with the Better Business Bureau.
A family-owned business rooted in the Madison area.
We stand behind our workmanship for life.
Material warranties run up to 50 years on qualifying products.
Seniors and veterans may be eligible for a discount, with details available on request.
Your first step is a free quote. Tell us about your deck, patio, or outdoor living project and we will help you bring it to life, backed by our lifetime labor warranty and more than 5,000 completed projects. Seniors and veterans may be eligible for a discount, so ask when you reach out. Call (608) 712-8935 or send your name, phone or email, and a brief project description.
