How To Install a Window Air Conditioner Support Bracket

By | March 27, 2022

How To Install a Window Air Conditioner Support Bracket
Supporting a window air conditioning unit is always a good idea to prevent it from falling and protect the window sill itself.

Several types of brackets are available to hold a window A/C unit in place.

The AC Safe window brackets are one such popular style brackets and the one we use below to hold a unit.

Brackets are bought by how much the air conditioner weighs with up to 160-pound version.

Example AC Safe window bracket on Amazon
A/C Safe AC-160 Universal Heavy Duty Window Air Conditioner Support

Installing a window A/C bracket fall in the DIY category but as always, call a professional if in doubt.

How To Install a Window Air Conditioner Support Bracket

  1. Find the center of the window sill and mark it.
  2. How To Install a Window Air Conditioner Support Bracket Step 1

  3. Small blocks come with the unit that needs to be screwed into the window sill.
  4. How To Install a Window Air Conditioner Support Bracket Step 2

  5. One block will be angled so the bracket can be leveled.
  6. How To Install a Window Air Conditioner Support Bracket Step 3

  7. After the blocks are in place, use screws in the top bracket bar.
  8. How To Install a Window Air Conditioner Support Bracket Step 4

  9. Next, mount the bottom bar, which has holes for a bolt to slide through.
  10. How To Install a Window Air Conditioner Support Bracket Step 5

  11. Screw in the bottom bar screws and slide the bolt in the best spot the unit will be level at.
  12. How To Install a Window Air Conditioner Support Bracket Step 6

  13. After the bracket is installed, place the A/C unit on it.
  14. How To Install a Window Air Conditioner Support Bracket Step 7

Summary
Installing a bracket to hold a window air conditioner in place is a good safety measure from falling and can help protect the window sill from damage.

It can also help stop vibrations which can quiet a window unit from making more noise than it should.

Leveling the unit is often the best method, but some do lean a unit away from home to keep condensation and rain draining away from the room.

Since there are many different styles of windows, sometimes modifications need to be done, depending on how it was built.

While installing support is a DIY job, call a knowledgeable friend or a professional if in doubt about doing it yourself.

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