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Connecticut Greenhouse Company, LLC

85 School St Middlefield Ct 06455

Call Toby: (203) 654-1595

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Greenhouses and High Tunnels; Construction and Maintenance; Frames, Kits, and Parts;

Grower Supplies



Greenhouse & High Tunnel Frames
  • Designed by growers and manufactured in Connecticut;

  • NRCS approved design

  • Standard 30' wide Gothic tunnel, available in any length from 48' to 260' and beyond!

  • Comes standard with roll up sides, metal end-walls, and ventilation systems;

  • Other sizes and customization available on request.

  • Full service design and construction of CT Greenhouse Company frames;

  • Upgrades and retrofits to preexisting tunnels, including:

    • New Plastic coverings,

    • Double layer inflated poly

    • Rebuilding and enhancing end-walls and doors

    • Adding roll-up sides

  • Available in CT, MA, and RI.

Consulting and Greenhouse Supplies


After years of constructing other company's high tunnel kits on our own farms, we haven taken the best of what we've seen elsewhere and developed our own high tunnel frames and greenhouses. Our Connecticut Greenhouse Company frames are perfect for season extension, summer tomato production, propagation, or any other other use on the farm. We will work with you to customize the design to match the specific needs of your growing operation.

Our most popular structure is a 30' wide Gothic frame, but we can provide custom widths from 8' to 30' depending on your needs. High tunnels and greenhouses can be in any length up to 400' long.  All structures come standard with roll-up sides and metal end-wall construction.

The CGC Difference

  • Industry leading customer service and support

  • Grade 5 bolts for all bolted connecitons

  • Stainless steel self tapping tek screws

  • 10 gauge ridge connectors

  • 16 gauge trusses and purlins

  • 20' long truss bottom cord for 30' wide houses

  • All steel comes predrilled and ready for installaiton

  • Unique purlin clip system with pre-drilled holes; eliminates time consuming aluminum cross connectors or thru bolted purlins

  • Industry leading ease of installation

  • Detailed instruction manual with pictures

  • Professional installation advice and tips only a phone call away

  • Designed by growers and manufactured in Connecticut;

  • NRCS approved vendor;

  • Gothic tunnel available in any width from 8’ to 30’;

  • Comes standard with a truss every hoop, roll up sides, metal end-walls, and ventilation systems;

  • 10-year roll up sides, metal baseboards, trellis pipe and wires, and other popular add-ons available;

  • Engineered plans available;

  • Further customization available on request.

  • Propagation greenhouses available in any width from 8’ to 30’;

  • Comes standard with an inflated double layer of 6 mil 4-year poly, roll up sides, metal end walls and automated ventilation systems;

  • Twin-wall rigid polycarbonate covering available;

  • Custom benches and pipe supports for hanging baskets available;

  • Ultra-efficient propane and natural gas heaters;

  • Engineered plans available;

  • Full customization available.

  • 12' or 14' Greenhouse frames are perfect for an ambitious home gardener or for farms just getting started;

  • Fully customizable with heating and cooling, roll up sides for ventilation;

  • Built-in or stand alone steel greenhouse benches available;

  • Engineered plans available;

  • Can be fully outfitted with all the supplies you need to start growing today!



Construction Services
  • Full service construction of Connecticut Greenhouse Company frames;

  • Upgrades and retrofits to preexisting tunnels, including:

    • New plastic coverings,

    • Double layer inflated poly,

    • Rebuilding and enhancing end-walls and doors,

    • Adding roll up sides.

  • Available throughout Connecticut and parts of Massachusetts and Rhode Island.

Greenhouse and Growing Supplies
Project Management and Whole-Farm Consulting
  • Assistance navigating NRCS Grant application process

  • Project management and design from start to finish.

  • Consulting on jobs of all sizes.

  • Site and technology consultations.

  • Our team of experienced growers can provide season extension planning and other whole-farm consulting services as needed.


Our 2020 Catalog is available now!
Click the image to the right to download a copy, or send us an email with your address to request a copy in the mail. 
Catalog cover.jpg


Connecticut Greenhouse Company, LLC is a full-service greenhouse and high-tunnel design, manufacture, and construction company. We are also growers, and our approach and our designs are informed by years of experience with four-season production in New England. 
We sell our NRCS-compliant high tunnel frames throughout the Northeast, and we provide construction services in Southern New England. Our crew is also available to perform maintenance, repairs, and upgrades on preexisting structures. We offer consulting and technical support nationwide. We are committed to providing transparent and fair pricing, and we provide greenhouse and other growing supplies at competitive prices.


We are here for construction technical support and sales 7 days a week from 6 AM until 9 PM eastern time. Call us today to get started on your next project! 



Toby Fischer oversees our construction team  and takes the lead on sales and consulting services. He is also the owner of Gentle Giant Farm in Middlefield, CT.

(203) 654-1595

Aaron Taylor manages our manufacturing, design, and business teams as well as providing grower technical support . He is an owner and grower at Four Root Farm in East Haddam, CT.

(860) 550-1122



Inquiries and Quotes

For any inquiries or questions: 

Call Toby at: (203) 654-1595



Or fill out the form below

Where We Work

Greenhouse sales, installation, maintenance and retrofits in Connecticut, Rhode Island and Massachusetts.

Consulting services and supplies available nationwide.