4 Season Growing

Looking for fresh organic vegetables & greens “backyard to table” year-round, even in the coldest winters and hottest summers? Then grow it yourself in a Sunglo  greenhouse.

“Sunglo makes gardening year round a reality, we love our Sunglo!”  – 25 yr + Sunglo customer

Compare Us to the Competition:

  • Our thicker 2 layer wall is a better insulating (R3+ to keep the heat out in the summer and in during the winter) and a more durable wall, the Sunglo wall is 1.375″, the typical competitor’s  wall is .5″ thick.
  • Our Greenhouse Kits have a 16″ exhaust fan along with a 16″ intake louver run by a digital thermostat for maximum ventilation—keeping it cooler in the summer.
  • Exclusively offering the GAHT® Lite system that uses the sun to passively heat the plant roots in the winter to lower your greenhouse heating bill and allow for true year round growing.
  • Backed by a 10 yr warranty
  • Compare all this to the competition, See our Competitor Comparison Chart

To talk with a Sunglo professional, sign up on our Contact Us page.


Superior Plant Growth

Sunglo uses an exclusive 2 layer acrylic panel system, one for durable exterior protection from mother nature and a second interior corrugated panel that scatters light evenly throughout the space to maximize plant growth and a higher insulating R value (R 3+).

Most importantly, acrylic lets in 10%+ more light and allows beneficial UV rays to reach your plants to better mimic natural growing conditions than the typical polycarbonate greenhouse panels.  This is the feature that matters most!


Extreme Durability

Sunglo was designed by Boeing engineers over 40 yrs ago to be a heavy duty greenhouse kit that withstands the harshest weather (ask our customers in Alaska).

“My Sunglo was just hit by a Tornado on June 23, 2023 and I only lost a few outer panels, I’m simply amazed that it survived” –  Colorado Sunglo customer

“I’ve had my Sunglo for 40 years and it looks like it is going to outlive me” –  Long time Sunglo customer

The durability of our USA made 2 layer acrylic panel (you can add an optional 3rd layer of acrylic) coupled with the top grade – aluminum frame and you have what we believe is the most durable greenhouse available. 40+ yrs of happy customers agree.  Backed by a 10 yr warranty.


45 Years of History in the USA

In production since 1976 and many original greenhouses are still around.  That is why our customers consider our pricing a small amount to pay for a lifetime of returns.  A Sunglo Greenhouse is an investment in your family’s health, well being and independence from corporate produce and flowers for generations to come.

Sign up on our Contact Us page to talk with a Sunglo Professional.



Boulder, CO


Littleton, CO


Englewood, CO

Watch a Sunglo Greenhouse being built

Still Have Questions?

Talk to a Sunglo Professional