It’s a matter of keeping your space cool and secure.
A window lock for an air conditioner prevents both falls and theft by securing your AC unit in the window frame and blocking unauthorized access.
Expect to pay $50 to $100 per hour for professional installation, with most jobs taking an hour or less to secure your unit properly.
You can add security by installing brackets that attach to your home's exterior, creating a stable support system that prevents the unit from falling out.
Hiring a local window AC repair professional ensures your unit stays secure and level, helping you avoid injury risks and equipment damage from improper installation.
Even with the rising popularity of mini-split ductless systems, window AC units still get the cooling job done. Unlike the complicated work required to install and maintain a central HVAC system, installing an AC in a window is something you can DIY. However, it’s not just about cooling off. It’s also about keeping your appliance and home safe, which is why you need to learn how to secure a window AC unit.
While a window AC unit is meant for easy installation in an open window, it’s important that you secure it well so that it stays put all season. It goes without saying that a wobbly window AC is not a good scenario either for the appliance or for anyone standing near (or under) the window. If it falls a considerable distance, it could injure your loved ones and completely stop working—not what you want after the time you invested in installing it.
But even if you are confident in your AC’s installation, you’ll want to ensure that it can’t be removed by burglars looking to steal your appliance or gain access to your home. This is especially true for window AC units on the ground level, though you should never dismiss the abilities of an enterprising thief when it comes to AC units on higher floors.
The average cost of a window AC unit is $300, including labor. However, if you already have an AC unit and simply need assistance installing it in the window, the hourly labor rate for window AC unit repair is between $50 and $100. Assuming there’s nothing wrong with the actual unit and you just want a pro to install or adjust it in the window frame, the job will be speedy. It should take a contractor from your local window AC repair company an hour or less to do the work.
Keep in mind, though, that if the window itself is the source of any issue with your AC unit installation, that will cost more to fix. Depending on the extent of the repair, it could cost $400 or more to repair the window or window frame.
There are a number of ways to secure a window AC unit, and you may want to use more than one of them for peace of mind. Not only will these methods keep the AC unit from falling out of the window and potentially causing injury or harm, but they will also deter theft.
The accordion panels secure the AC unit and cover up the open window to stop outside air from getting in. Use weatherstripping or other insulation to ensure that there are no gaps or openings in the panels.
An air conditioner bracket—which you can get at any home improvement store—attaches to both the AC unit’s bottom and the side of the house. This support secures the unit in your window and acts as a theft deterrent.
Install sliding window locks on the track of the window to block it from opening. This will ensure a snug fit and act as another form of theft prevention.
Window locks are difficult to remove in an emergency. If this is the only window in the room, consider using wedge locks, which are not screwed into place and can be more easily removed. Just keep in mind that burglars can also remove them quite easily to access your home.
These are adjustable, heavy-duty metal bars made expressly for securing window AC units. Configure the length so that it fits into the horizontal or vertical track of your window to prevent it from opening.
For a low or no-cost alternative to the security bar, you can cut down a dowel or piece of scrap wood to fit the window. For windows that slide open horizontally, place the bar in the track so that it can’t open. If you have a vertically hung window, you can shove it into place standing up.
Be sure to measure carefully for vertically hung windows. Anything too short will simply fall over and be useless. Granted, this isn’t the most aesthetically pleasing way to secure your window AC unit, but it can work in a pinch.
Even if it looks impossible for that window AC unit to budge, it’s important to keep an eye on it to ensure continued safety for the appliance, your home, and yourself.
Especially after strong winds or inclement weather, look at the window AC unit on the inside and, when safely possible, from the outside. If anything looks amiss, be it a loose bracket or shifted accordion vent, make the necessary adjustments as soon as possible to secure it again.
AC units are rather unwieldy to maneuver, so it helps to have a partner work with you as you install it in the window. It’s a good safety practice both for yourself and the AC unit.
This is the default suggestion for important home projects for good reason. If you’re ever unsure of your DIY skills, it’s best to hire a pro. Consider the money to be an investment in the safety and security of yourself and your home.
Aside from the actual cost of the unit itself, you will save money by DIYing window AC unit installation. However, keep in mind that you might have to purchase additional materials to secure it in the window, including sealing tape, brackets, and AC unit cages. Don’t skimp on any materials that will ensure a snug fit for your window AC unit. It’s well worth the money to avoid any accidents that could result in harm to people or property.
Should you choose to hire a pro instead, it will cost you between $50 and $100 an hour in labor. Assuming that the AC is in working order and that there’s nothing wrong with the window, the entire project won’t take longer than an hour.
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