How much does a garden window cost?
Ashburn, VA

How much does a garden window cost?

Ashburn, VA

How much does a garden window cost?

$1,000 – $4,000average garden window cost (installed)

Get free estimates for your project or view our cost guide below:

$1,000 – $4,000 average garden window cost (installed)

Get free estimates for your project or view our cost guide below:
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Tamatha Hazen
Written by
Tamatha Hazen
Edited by
Kristen Cramer
Fact-checked by
Tom Grupa

Average garden window cost by size

A garden window costs $1,000 to $4,000 installed on average, depending on the window size. Smaller kitchen garden windows cost $700 to $1,000, while larger garden box windows cost $2,500 to $6,000. Replacement garden windows cost less than new installations since the hole and support structures are already made.

Average garden window cost by size
Window size (inches) Average installed price
24x24 $700 – $1,000
24x30 $800 – $1,400
30x30 $900 – $1,800
36x36 $1,000 – $3,000
36x48 $1,200 – $3,800
40x26 $1,000 – $2,600
48x48 $1,500 – $4,500
60x72 $2,500 – $6,000

Garden windows above a kitchen sink or in a bathroom are typically 24 inches by 24 inches, but garden windows in other spaces, such as a living room or a den, can be much bigger, measuring up to 60 inches by 72 inches.

Get free estimates from window installers near you.

Garden window prices by material

Garden windows prices depend on the window frame material. Aluminum is the cheapest but provides less insulation than other options. Fiberglass and wood are durable and long-lasting but cost the most.

Garden window prices by material
Frame material Average installed cost Pros Cons
Aluminum $1,000 – $2,600
  • Affordable Low-maintenance
  • Durable and long-lasting
  • Wind-resistant
  • Lightweight
  • Often look cheapProne to corrosion in coastal climates
  • Less insulated and prone to condensation
Vinyl $1,000 – $3,100
  • Affordable
  • DurableLow-maintenance
  • Custom sizes available
  • Less energy-efficient than other types
  • Less durable
  • Fewer finish choices
Fiberglass $1,200 – $3,200
  • Best for extreme climates
  • Waterproof
  • StrongLow-maintenance
  • Best energy efficiency and sound insulation
  • Fewer color options
  • More expensive
  • Fades in the sun
  • More rigid material that requires professional installation
Wood $2,000 – $4,000
  • Timeless look
  • Durable and long-lasting with proper maintenance
  • Sustainably harvested wood is eco-friendly
  • Easily customizable with paint and stain
  • Expensive
  • Requires regular maintenance
  • May warp and rot in humid climates
  • Attracts insects

A kitchen with a garden window from Window World.
A kitchen with a garden window from Window World.

Garden window installation cost factors

Garden windows cost $700 to $3,000 for the unit alone, plus $300 to $1,000 for labor and installation supplies. Installing a new garden window is more complex than other window installations and takes 1 to 2 days. Replacement garden windows take less time since the hole and support structures are already there.

Garden window installation cost calculator
Factor Average cost
Window / materials $700 – $3,000
Labor & installation supplies $300 – $1,000
Total installed cost $1,000 – $4,000

Factors that affect the cost of garden window installation include:

  • Labor rates:

    • Window installers charge $40 to $65 per hour.

    • Handyman rates are $50 to $80 per hour.

    • Contractor rates are $50 to $150 per hour when replacing windows as part of a larger home remodel project.

  • Size & depth – Larger and deeper garden windows cost $1,000 to $4,000 installed. Smaller, shallow windows cost $700 to $900 and are easier to install and require less support.

  • Location & accessibility – Upper floor installations take longer and cost more. Kitchen garden windows are usually smaller and cheaper to install.

  • Frame material – Aluminum and vinyl frames are cheaper than wood and fiberglass frames.

  • New vs. replacement – Replacing a window is cheaper since the framing, windowsill, and trim can be reused. New installation costs up to 50% more to create a new opening in the wall and add structural support.

  • Time of year – Seasonal deals and promotions are available in winter, which is considered off-season for window replacement.

  • Travel / delivery fees – Rural locations may incur added travel and delivery fees for garden windows.

  • Permits – Building permits cost $50 to $300 for small jobs like replacing windows.

Best garden window brands

Many popular window brands make specialty garden windows, while other brands create an indoor garden shelf by extending the windowsill depth of other standard window types.

Garden window costs by brand
Brand Average installed price Details
Andersen Window cost $1,500 – $5,000 90-degree box bay window available in the 400 Series and E-series product lines
Pella windows cost $400 – $3,000* Do not make a specialty garden window but will customize a bay or picture window with an extended windowsill
Marvin windows cost Prices available only from authorized Skycove dealers in select markets Manufactures a Skycove glass box bay structure with fixed window panels that project away from the walls
Champion $1,300 – $4,500 Garden window with side vents for improved ventilation
Harvey $1,000 – $4,500 Custom vinyl garden windows with a 10-year warranty
JELD-WEN $1,200 – $4,800 Limited line of garden windows available at some Lowes and Home Depot locations
Milgard $1,000 – $3,600 Vinyl windows installed with Low-E insulated glass and side vents in custom sizes
Simonton $1,600 – $4,500 Energy-star, low-maintenance options in several collections
Solar Innovations $1,800 – $4,800 Aluminum garden windows in custom shapes, sizes, and glass options
Window World $1,400 – $4,500 Vinyl garden plant window with adjustable shelves and tempered glass

*Price for bay and picture windows that can be customized to act as a garden window.

Garden window customizations

There are many upgrades available to improve the energy efficiency and functionality of a garden window, including:

  • Glass panes – Single-pane windows are poorly insulated and not ideal for use in most homes. Double- and triple-pane glass improves the energy efficiency of the window.

  • Glass insulation:

    • Low-emissivity (low-E) glass increases window prices by 10% to 15% for a thin coating of metal that reflects infrared light, keeping the heat in during the winter and out during the summer.

    • Argon gas filler increases the cost of a window by $30 to $40 when added to the space between panes to better insulate the window and prevent frost buildup during cold weather.

    • Window tinting costs $5 to $8 per square foot for a thin film of tint added to reduce heat and glare, block UV rays, and add some privacy.

    • Weatherstripping costs $5 to 10 per window with installation.

  • Fixed vs. operable:

    • Fixed windows are cheaper and better sealed for energy efficiency.

    • Operational or moving garden windows with side vents cost an average of $200 to $800 more per window, depending on the window size.

    • Shelf & shelf material – Adding glass shelving costs $20 to $30 for small windows and up to $300 for larger windows. Laminate or wood shelves are also available as an upgrade.

Greenhouse window cost vs. bay window

A greenhouse window is a box with a glass roof and sides that extend from the wall at 90-degree angles. Most garden or greenhouse windows are small and installed above the kitchen sink for convenience and easy clean-up.

In contrast, a bay window costs $2,000 to $6,000 for a three-sectioned window that protrudes outward at a gentle 45-degree angle, with a roof that is an extension of the house. Bay windows are much larger and often have room for a window seat.

Get free estimates from window installers near you.
A bay window with a copper roof on a home with brick siding.
A bay window with a copper roof on a home with brick siding.

Garden window pros and cons

Garden windows are a great place to grow plants, herbs, and vegetables without the hassles of an outdoor garden. The 4 glass panes bring in more sunlight than a standard window and provide great cross-ventilation with the side panels cranked open.

Garden window pros and cons
Pros Cons
  • More natural light
  • More space for plants than a small windowsill
  • Improved air quality
  • Reduced stress levels
  • Increased home value
  • More expensive than other window types
  • Requires proper installation to prevent structural damage or leaks
  • More difficult to keep clean
  • Attracts insects into the home since the vents are not typically screened

Garden window FAQs

What is a garden window?

A garden window is a glass window box that extends from the side of the house, creating a shelf typically used for plants. The window is like a mini-greenhouse with a sloped glass roof that directs sunlight onto the plants inside the window.

Do garden windows increase home value?

Yes, a garden window is appealing to many buyers and can help maximize your home's resale value.

Are garden windows outdated?

Though garden windows gained popularity in the 1970s, the new, modern styles are not outdated. In fact, garden windows are experiencing a resurgence as people look for easy home garden solutions.

Do garden windows open?

Yes, many garden windows are designed with side vents that open for cross ventilation. The side panels are either single-hung windows that open up from the bottom or casement-style windows that open outward with a crank.

How big should my garden window be?

The most common sizes for a garden window over the kitchen sink are 24"x36" or 36"x36" but can be as big as 72"x60". The standard depth for a garden window ranges from 16" to 24".

Get free estimates from window installers near you.

How long do garden windows last?

Garden windows can last 15 to 30 years, depending on the material and quality of the installation. Garden windows can cause structural problems and leaks if not properly supported, so an experienced installer is a must.

Getting estimates from garden window installers

Consider these suggestions to help you select a garden window installer near you:

  • Limit your search to only licensed, bonded, and insured window installers.

  • Get estimates from several installers with the same product material and glass type for a more accurate comparison.

  • Avoid the lowest price quotes which often result in substandard work.

  • Check past customer reviews on HomeGuide and Google.

  • Get everything in writing including the estimate, contract, and warranty details.

  • Avoid large upfront deposits and don't make the final payment until you are satisfied.

Questions to ask {#ask}

Asking these important questions can help you pick the right window installer for your garden window project:

  • How many years have you been installing garden windows in my area?

  • How much will the installation cost?

  • What brand of garden windows will fit my budget?

  • Do you recommend double-pane or triple-pane glass for my home?

  • What does the estimate include?

  • How long will the installation take?

  • Is there a better time of year for me to schedule a garden window replacement?

  • What happens if my siding or window frames are damaged during the installation?

  • Do you offer extended financing? What are the terms?

  • Is there a warranty, and if so, what does it include?