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Season extension that actually extends your season.

Built for Wisconsin winters — not a kit that collapses under the first heavy snow.

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16 years experience · Sullivan, WI · Mon–Sat 8am–4pm

Hobbyist Backyard Greenhouse Systems

About This Service

A well-built greenhouse changes what is possible in a Wisconsin growing season — starting plants weeks earlier in spring, extending fall harvests past first frost, overwintering tender perennials, and producing food through the coldest months with the right crops. A poorly built one leaks heat, collapses under snow load, and frustrates the person who invested in it. We design and install greenhouses scaled to your site and growing goals — from simple hoop structures for season extension to cedar-framed structures with ventilation systems, raised growing beds, and access paths. Every installation is built to handle Wisconsin winters: appropriate anchoring for local wind loads, proper ridge pitch to shed snow, quality poly cover or polycarbonate panels, and passive ventilation that prevents the temperature swings that stress plants on sunny winter days. The work starts with a conversation about what you want to grow and when, and ends with a structure that is ready to use — not a kit you are still assembling in October when you needed it in April.

How It Works

Our Process

  1. 01

    Planning

    We discuss your growing goals, season extension needs, and site constraints. Orientation for maximum winter sun exposure is assessed and the right structure type is determined.

  2. 02

    Design

    Frame size, material, glazing type, and ventilation are specified for your site and for Wisconsin's weather demands — particularly snow load and wind exposure.

  3. 03

    Foundation and anchoring

    Appropriate ground anchors or perimeter framing installed to handle the expected wind and snow loads for your location.

  4. 04

    Build and finish

    Frame erected, cover or glazing installed, ventilation set, interior beds or growing space completed. We walk you through operation before the crew leaves.

Project Photos

Recent Hobbyist Backyard Greenhouse Systems work

  • Cedar hoop greenhouse installation with growing plants inside

    Cedar hoop greenhouse installation with growing plants inside

    Sullivan

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Common Questions

Hobbyist Backyard Greenhouse Systems FAQs

What size greenhouse makes sense for a home gardener in Wisconsin?
Most home gardeners find a 10x16 or 10x20 hoop structure provides meaningful season extension without overwhelming the property. Larger structures make sense for serious food producers or those overwintering significant perennial stock. We size based on your goals and available site space.
Can a greenhouse survive a Wisconsin winter?
Yes — with the right design. Snow load is the critical factor: a properly pitched ridge sheds snow rather than accumulating it. We design for Wisconsin's expected snow loads and use anchoring appropriate for local wind exposure. A correctly built greenhouse with appropriate crops can produce through winter in our climate.
What can I grow in a Wisconsin greenhouse through winter?
Cold-hardy crops — kale, spinach, lettuce, arugula, carrots, and hardy herbs — produce through winter in a non-heated hoop house. With supplemental heat, the range expands to include year-round salad crops and starting warm-season seeds weeks ahead of outdoor planting dates.
How long does greenhouse installation take?
Most greenhouse installations are completed in two to three days depending on size and complexity. We give you a clear timeline during the estimate and coordinate installation for when the structure will be most useful to your growing calendar.

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Ready to get started on your hobbyist backyard greenhouse systems project?

Request a free, no-obligation estimate — we'll come take a look and give you a clear, honest quote.

Request a Free EstimateOr call (262) 370-7217