Greenhouse Window Well


Turn your window well into a garden of fresh veggies and herbs.

Window wells in most homes only serve as egress in case of an emergency. Unless there’s an emergency, its vacant space never gets used . More and more folks realize that this space could very well be an all season growing space greenhouse for growing and or storing house plants.


Greenhouse structures can take on various designs, for those who prefer a more manageable garden endeavor, as opposed to a standalone hobby grow house or a permanent greenhouse structure. A window well greenhouse may just be the answer.

For people who enjoy gardening and want to increase their growing season and would like an affordable option, turning a window well into a green house is an easy to create alternative.


Greenhouse window wells only require a couple of sheets of polycarbonate panels. The 4×8 sheet quantity will depend on the size of the window well, a metal or wood frame and a day or two to construct.

Once completed, build a tiered shelf arrangement or window box planters most likely from wood. Utilizing a window well liner will also help prevent the wood shelving from making contact with moist dirt inside the window well. Bring in good organic soil and start to grow a variety of herbs and greens.

 A DIY green house window well will turn out veggies along with fresh herbs even in the coldest regions of the country. Proper orientation and care, growing all year is totally doable!

Harvesting decent bumper crops. Depending on the size of the window well, a bountiful harvest will fill your quiver.

The best window well has a south westerly orientation; this will allow the greenhouse window well to collect as much southern winter sun as possible.

In addition to growing plants and herbs. Capturing sun rays an added bonus provides additional heat into the adjoining area and will also prevent heat from escaping through the interior window on cold days and evenings.


A window well greenhouse provides an air lock between the outdoor elements and the inside of the room. This arrangement is ideal for individuals who want to grow their own herbs on a small scale for personal consumption. Access from the inside is a handy feature.


The exterior of the greenhouse window well should have an access passage from the outside; a small hinged door with proper weather stripping that is large enough for a person to fit through 24″w x 36″h or larger is probably all one needs to comply with egress.

The exterior of the greenhouse window well should have an access passage from the outside; a small hinged door with proper weather stripping that is large enough for a person to fit through 24″w x 36″h or larger is probably all one needs to comply with egress.

With respect to dimensions, the best window wells are 5′  (x)  5′  (x)  3′  ranges or bigger. Obviously the larger the window well, the bigger the harvest.

DIY designs and plans can be left to the imagination there are no rules, build it right, build it functional and build it to last.

A window well greenhouse such as the one in this article was inspired and designed by Mac Thompson.

This diy window well green house turned out just right, with a 7′-6″w x 6′ d x 3′-5″h overall size, this allowed for two generous sized growing levels around 12″ x 12″ for each tier. The bottom sill level can be used for potting containers and other implements.


Building your own window well grow house, requires a little design planning, but there also many greenhouse designs on the market that can serve most gardening needs. Many homes that cannot accommodate a window well greenhouse do have other options. Inexpensive options include a small standalone models made of clear plastic over a light PVC frame and shelving. This type of greenhouse can attach to a house wall, not very practical during colder months. Another variety of green house kit; is your garden variety backyard greenhouse structure. This type requires a solid foundation and an accessible location within the yard. Depending on which model or design purchased these options are also very affordable. If gardening is a passion, then greenhouse growing is the way to go. A window well greenhouse can provide early tomatoes salad greens all year long and start seedlings for the main garden every season. A hobby green house is a smart investment. Everyone I talk to wants one! Don’t wait too long, now is the time to take advantage of Spring sales and discounts

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What Customers Say About Greenhouses Del Sol

Scott Rivers
Scott Rivers
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I had an Idea for a greenhouse and ralph gave me options based on my budget and timeframe. A great experience and highly recommend Ralph for all your projects!
Susan Riley
Susan Riley
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I had the best experience with Ralph building our greenhouse. It was not just about building but he gave us an education on what we can grow depending on size, temperature and sunlight.
Mr And Mrs. Simms
Mr And Mrs. Simms
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We have been gardening for years and finally got our greenhouse thanks to Ralph! We are now growing things year round so the winter in colorado does not feel so gloom. I