Garden Window Cost

How Much Does a Garden Window Cost?

	Standard-Size Garden Window: $500-$900
	Large or Unusual-Size Garden Window: $1,000-$4,000+

Also called a box window, a greenhouse window or a greenhouse garden window, a garden window is three-dimensional, jutting outward from the size of the building. In addition to nurturing plants, a garden window can bring in more light and give the illusion of greater space in a room. Garden windows are similar to bay windows, but are usually smaller, cover only the window area and have glass or wire shelves.

Although some high-end garden windows have a wood frame (which requires more maintenance), most are either vinyl or aluminum. Most have a large flat pane of glass placed between 14" and 18" out from the house, side windows angled back to the house and a sloping glass top. This creates a glassed-in area designed to hold small plants. Garden windows can be added to any room but are most common in kitchens. They can be installed when a window needs replacing, as part of a general renovation or as a stand-alone project.

Typical costs:

• Because garden windows take up space, stores generally don't keep them in stock. Instead they are typically made to order and tend to cost more than traditional flat windows. Prices start between $500 and $900 for a standard-size (typically 3'x3', 3'x4' or 4'x4') vinyl garden window custom-ordered from home improvement centers such as Home Depot[1] or Lowe's[2] . (Note: Garden windows are not listed on these companies' websites and may not be available at all stores, particularly those in more harsh climates.)
• For a non-standard-size or a larger vinyl garden window, or one framed with aluminum or wood, expect to pay $1,000-$4,000 or more depending on size, materials and options such as casement (hinged rather than sliding) side windows, tempered glass or glass with a special coating (Low-E) to reduce heat conductivity. For example, the calculator for Block Windows Systems[3] estimates that a 3'x3' vinyl window with standard clear glass costs $1,003, while a 6'x3' aluminum garden window with tempered and Low-E glass plus a bronze tint will run about $1,700. And AAA Greenhouse[4] sells an 8'x5' garden window kit with custom colors, tempered glass and an extra shelf for $3,048-$3,660, depending on the shipping distance.
• Do-it-yourself installation is possible; DIYNetwork.com[5] rates it as a hard project that would take a weekend to do. RonHazelton.com provides step-by-step instructions[6] for installing a garden greenhouse window.
• Professional installation can add $1,000-$2,500 or more to the cost. With professional installation, total costs for a garden window average $2,000-$4,000, but it can vary considerably based on local rates, size of the window, etc.

What should be included:

• Garden windows are typically pre-assembled in the factory, and then mounted on the side of the house as a single unit. If replacing an existing window, the sash and frame of the old window must be removed before the garden window is installed.
• Most garden windows have screened side windows that open, because if there is no ventilation, plants in the garden window can wither in the summer months. The side windows can be single- or double-hung (sliding up and down) or hinged casement windows, which might open with a crank or an automatic lever.
• Garden windows are best suited for moderate climates. For example, some homeowners[7] and contractors [8] have decided garden windows have too many problems in their region.

• Check whether quotes for installation include removing the old window and touching up the wall surrounding the window when the work is done.

• Manufacturers include AAA Greenhouse[9] , Gorell[10] , Jeld-Wen, Milgard[11] , Pella[12] , Superior Windows and Tru-Frame[13] . These sites typically provide a way either to order direct from the company or to search for local dealers. Most window dealers offer installation services for garden windows, or provide referrals to local contractors. It's best to choose someone experienced in garden window installation.
• Accurate measurements are important for replacement windows; some companies may charge $30-$60 or more to have a representative come in person to take the measurements and evaluate the site, but that amount will then be credited toward the total cost of installation. Get estimates from several companies. Ask for and contact references, and make sure the company is properly bonded and insured.