Outdoor AC Installation Guide: Custom Window Grill Modifications for Mumbai Homes

Installing an outdoor AC unit in Mumbai’s compact apartments requires precision and safety. At Mewelder, we specialize in custom window grill fabrication and durable metal stands to securely fit your AC outdoor unit. Here’s a detailed guide to ensure a hassle-free installation.

Measure & Modify the Window Grill

1. Current Grill Size: If your existing window grill has a 12-inch box, expand it to accommodate the outdoor unit.

2. Cutting & Extending:

   • Add a 6-inch box extension to the outdoor section of the grill.

   • Ensure the total width matches the AC unit’s requirements (typically 40 inches).

   • Use MS steel for durability and rust resistance.

Pro Tip: For coastal areas like Worli or Chembur, opt for powder-coated grills to combat humidity.

Step 2: Fabricate a Custom AC Stand

A sturdy stand prevents vibrations and supports the AC unit’s weight. Here’s how we design it:

1. Frame Dimensions:

   • Base: 24x40 sq. inches (angle frame made of 34x4 mm steel).

   • Top Patti: Add a 20x5 mm steel patti to distribute the AC’s weight evenly.

   • Brackets: Fix 2 brackets (same 34x4 mm angle) to anchor the stand to the wall.

2. Installation:

   • Secure the stand to the wall using cement nails or heavy-duty fasteners.

   • Ensure the stand is leveled to avoid tilting.

Step 3: Secure the AC Unit

1. Place the AC: Position the outdoor unit on the stand.

2. Bolt Fixing: Use anti-rust bolts to fasten the unit to the stand.

3. Safety Check: Ensure no part overhangs beyond the grill or stand.

Why Hire Professionals Like Mewelder?

• Precision: Avoid measurement errors that risk AC falls or grill damage.

• Material Quality: We use weather-resistant steel to withstand Mumbai’s monsoons.

• Compliance: Follows BMC safety guidelines for high-rise buildings.

Maintenance Tips for Outdoor AC Units

1. Monthly Cleaning: Remove dust from the grill and stand.

2. Pre-Monsoon Check: Inspect bolts and apply anti-rust spray.

3. Annual Service: Tighten loose fasteners and repaint the stand if needed.

FAQs

Q1: What’s the cost of a custom AC stand in Mumbai?
A: Starts at ₹2,500 (basic) to ₹6,000+ (premium powder-coated).

Q2: Can you modify existing grills in old buildings?
A: Yes! We retrofit grills in heritage societies like Dadar or Matunga.

Q3: How long does installation take?
A: 4–6 hours for grill modification + stand installation.