A Milgard garden window is a popular choice for homeowners who want to bring natural light and a mini greenhouse into their kitchen or living space. Unlike standard windows, a garden window projects outward from the house, creating a shelf area for plants, herbs, or decorative items. If you’re considering adding one to your home, this guide covers everything from installation steps to cost considerations and common mistakes to avoid.
What Is a Milgard Garden Window and How Does It Work?
A garden window is essentially a box-shaped window that extends outward from your wall, typically with a glass top and sides. Milgard’s version features a tempered glass top, insulated glass units, and a built-in shelf. The window operates like a casement window—you crank it open from the bottom or side for ventilation. It’s designed to fit into standard window openings and is available in various sizes and colors to match your home’s exterior.
Key components include:
- Glass: Low-E glass with argon gas fill for energy efficiency.
- Frame: Vinyl or aluminum-clad wood options (Milgard offers both).
- Shelf: A tempered glass shelf that can hold up to 30 lbs per square foot.
- Screen: A full-screen panel for insect protection when open.
This type of window is ideal for kitchens, sunrooms, or any room where you want extra sunlight and a place to grow herbs year-round.
How to Install a Milgard Garden Window: Step-by-Step
Installing a garden window is a moderate DIY project if you have basic carpentry skills. However, if you’re not comfortable with structural work, hire a professional. Here’s a general installation overview:
- Measure the rough opening: Ensure your existing window opening is square and the right size for the garden window (Milgard provides a rough opening chart).
- Remove the old window: Carefully take out the existing window, clean the opening, and check for rot or damage.
- Apply flashing and sealant: Install a sill pan and flashing tape to prevent water intrusion. This is critical for garden windows because they protrude outward.
- Position the garden window: Place the window into the opening from the outside, ensuring it’s level and plumb. Shim as needed.
- Secure the window: Fasten the window frame to the studs using screws. Do not over-tighten.
- Insulate and seal: Fill gaps with low-expansion foam, then apply interior trim and caulk both inside and out.
- Test operation: Crank the window open and closed to ensure smooth movement.
Pro tip: Always check local building codes—some areas require tempered glass or specific egress rules.
Cost Factors: What You’ll Pay for a Milgard Garden Window
The cost of a Milgard garden window varies based on size, frame material, glass options, and installation. Here’s a breakdown:
- Window unit alone: $400–$1,200 for standard sizes (e.g., 3 ft wide x 4 ft tall). Larger or custom sizes cost more.
- Installation: $200–$500 if professionally installed, depending on your location and complexity.
- Optional upgrades: Energy-efficient glass (Low-E, argon) adds $50–$150; custom colors or grilles add $100–$300.
Milgard offers a limited lifetime warranty on vinyl frames and glass, which adds value. Compare quotes from at least three installers to ensure fair pricing.
Common Mistakes and How to Avoid Them
Many homeowners make these errors when choosing or installing a garden window:
- Ignoring weight limits: The glass shelf can hold up to 30 lbs per square foot, but overloading can cause breakage. Distribute weight evenly and avoid placing heavy pots directly on the glass.
- Poor waterproofing: Garden windows are prone to leaks if flashing is not installed correctly. Use a sill pan and seal all joints.
- Wrong size for the space: Measure the rough opening accurately. A window that’s too large may not fit, and one too small will require framing modifications.
- Forgetting about ventilation: Some garden windows only open from the bottom. If you want top ventilation, choose a model with both top and bottom vents.
- Skipping energy efficiency: Without Low-E glass, garden windows can cause heat loss in winter and heat gain in summer. Always opt for insulated glass.
Real Buyer Tips: Is a Milgard Garden Window Right for You?
Before purchasing, consider these practical points:
- Where to install: The best location is a south- or west-facing wall to maximize sunlight for plants. Avoid north-facing walls if you want to grow herbs.
- Maintenance: Clean the glass regularly with a non-abrasive cleaner. Check seals annually for wear.
- Alternatives: If you don’t need a shelf, consider a bay or bow window. Garden windows are best for small spaces where you want a mini greenhouse.
- Financing: Some Milgard dealers offer financing options. Ask about promotions or rebates for energy-efficient windows.
Overall, a Milgard garden window is a durable and attractive addition that can increase natural light and provide a functional shelf. Just ensure proper installation and choose the right size and glass for your climate.
Frequently Asked Questions
Q: Can I install a Milgard garden window myself?
A: Yes, if you have experience with window installation and follow proper flashing and sealing steps. Otherwise, hire a professional to avoid leaks.
Q: How long do Milgard garden windows last?
A: With proper maintenance, 20–30 years. The vinyl frame is resistant to rot and corrosion.
Q: Do garden windows come with screens?
A: Yes, Milgard garden windows include a full insect screen.
Q: Can I put a garden window in a bathroom?
A: Yes, but ensure privacy. Frosted glass options are available.
Q: What is the warranty on Milgard garden windows?
A: Milgard offers a Limited Lifetime Warranty on vinyl frames and glass, covering defects in materials and workmanship.
Adding a Milgard garden window can transform your space with light and greenery. By following the tips above, you’ll make an informed decision and enjoy your window for years to come.