All-Weather Shade & Protection for Your Wisconsin Outdoors

A pergola has an open slatted or latticed roof, while a pavilion has a fully solid roof. That single difference drives everything else about how the two spaces work. A pergola filters sunlight rather than blocking it, keeps sightlines open, and reads as part of the landscape, which suits a patio where you want definition without enclosure. A pavilion shelters the space underneath from rain and full sun, which makes it the choice when the goal is all-weather use or covering an outdoor kitchen or dining area. Alt's Operation builds both, with multiple material and design options, and is a partner of The Luxury Pergola for louvered and adjustable roof systems.

Cost on a pergola or pavilion project comes down to footprint, material, and roof system. Span drives the structural requirement, so a larger structure needs heavier framing and deeper footings rather than simply more of the same lumber. Material choice carries a wide spread, from treated wood at one end to timber frame and louvered aluminum systems at the other. Site conditions matter too, since footings on a sloped or hard-access site take more work than on flat, open ground. Pricing follows an on-site visit and design consultation.

Cedar, treated wood, composite, metal, and timber frame are the material options Alt's Operation works with, and each behaves differently through Wisconsin's freeze-thaw cycles. Cedar resists rot and insects naturally and holds its dimension well, though it grays over time without a finish and needs periodic resealing to keep its color. Treated wood is the most economical structural option and performs reliably outdoors. Composite and metal systems, including louvered aluminum, avoid the seasonal maintenance that wood requires and hold their finish through repeated freeze and thaw. Which one fits depends on the look you want, how much upkeep you want to take on, and how the structure needs to tie into your home's architecture, all of which gets settled during the design phase.

Permit requirements for pergolas and pavilions in Wisconsin are set locally, so what applies in Madison differs from Verona, Waunakee, or unincorporated Dane County. Because these are roofed structures with footings, they more often fall under building permit review than smaller landscape features do, and requirements commonly address footing depth, setbacks from property lines, and snow load specification. Properties in an HOA or with a recorded easement can carry a separate layer of approval on top of the municipal one. Confirming what applies to your address happens during planning, before a design is finalized. 

The schedule on a pergola or pavilion breaks into four stages: the on-site consultation, design development with 2D plans and 3D renderings plus your feedback and approval, any permitting the municipality requires, and then installation. Permitting is the stage most likely to shift a schedule, since review times vary by municipality and sit outside the builder's control. Structures built as part of a larger design-build project follow that project's phasing rather than a standalone timeline, since footings usually go in alongside hardscape work. Alt's Operation confirms the schedule before work begins rather than leaving the timeline open-ended.