Common AC Installation Mistakes to Avoid
Common AC Installation Mistakes to Avoid
Blog Article
So, you're finally ready to beat the heat and get that shiny new air conditioning system installed. Great decision! But here’s the thing—installing an AC unit isn’t just about getting it up and running. If it’s not done right, you could end up sweating bullets in the middle of July, paying way too much on your energy bills, or constantly calling a technician for repairs.
Let’s talk about some of the most common AC installation mistakes homeowners (and even some pros!) make—and how to avoid them. Trust us, a little knowledge now can save you a lot of frustration later.
1. Choosing the Wrong Size Unit
A lot of people assume, “Bigger is better, right?” Well, not with AC units. If your system is too large, it’ll cool your home too quickly, without properly dehumidifying the air. That leaves you with a cool but clammy indoor environment. On the flip side, a unit that’s too small will run constantly just trying to keep up, which wears it out faster and still doesn’t keep you comfortable.
Solution? Always have a professional do a load calculation for your home before installation. That means measuring square footage, checking insulation levels, window sizes, and more. If you're searching for an AC install near you in Glendale, WI, make sure the contractor offers a thorough assessment—not just a quick guess.
2. Poor Ductwork Design or Installation
You can have the best AC unit on the market, but if your ductwork is a mess, your system will suffer. Leaky, poorly sealed, or undersized ducts mean uneven cooling, low airflow, and wasted energy.
Many older homes in Glendale have ductwork that wasn’t designed for modern HVAC systems. If you’re retrofitting a new unit, your ducts might need an upgrade too.
Pro Tip: Ask your HVAC technician to inspect your ductwork before installation. Sealing leaks and ensuring proper sizing can seriously boost efficiency and comfort.
3. Skipping the Permit or Inspection
We get it—permits sound like a hassle. But they exist for a reason. Installing an AC without a permit might save time upfront, but it can lead to code violations, safety risks, and even issues when selling your home.
Plus, skipping inspection means there’s no second pair of eyes checking to make sure everything’s installed properly.
Our advice? Don’t cut corners. A reputable company offering AC install near you in Glendale, WI will handle permits and inspections for you. If they don’t, that’s a red flag.
4. Improper Refrigerant Charge
Refrigerant isn’t something you can just “top off” like oil in a car. Too much or too little refrigerant can cause your AC to run inefficiently, shorten the life of your compressor, and leave you with lukewarm air blowing out of the vents.
Unfortunately, some installers don’t take the time to properly measure and adjust the refrigerant levels after install.
Fix it: Make sure the technician uses proper gauges and follows the manufacturer’s specs when charging the system. You deserve cool air that’s actually cool.
5. Bad Thermostat Placement
Your thermostat is like the brain of your AC system. If it’s placed in the wrong spot—like near a sunny window, kitchen, or vent—it can’t get an accurate reading of your home’s temperature. That leads to the system turning on or off at the wrong times.
Ideal placement? A central, shaded wall away from vents or direct sunlight. If you’re doing a new install, ask the technician to relocate the thermostat if needed.
6. Not Leveling the Outdoor Unit
This might sound minor, but it matters. The outdoor condenser unit needs to be level to function properly. If it’s tilted, it can affect the internal components, cause vibrations, and lead to long-term damage.
A good installer will always set the unit on a stable, level base—like a concrete pad or composite platform.
Heads-up: If you're working with a pro for AC install near you in Glendale, WI, don’t be afraid to check the unit yourself after they leave. A quick glance can help you catch any obvious missteps early on.
7. Ignoring Airflow and Vent Placement
During installation, it’s not uncommon for installers to rush the process and overlook airflow balancing. This means some rooms may be freezing while others are stuffy and warm.
Also, if vents are blocked by furniture or placed in odd spots, your system can’t perform at its best.
Fix it: Walk through your home with your HVAC tech and talk about which rooms tend to get warmer or cooler. Make sure the vents are placed and sized to match the room’s needs.
8. Hiring the Wrong Installer
Let’s be honest—not all HVAC companies are created equal. Some are underqualified, others are in a rush, and a few are just out to make a quick buck.
Your best bet? Hire a certified, experienced, and well-reviewed contractor who knows the local climate and building codes. If you’re looking for AC install near you in Glendale, WI, don’t settle for the cheapest bid. Go with someone who has a track record of quality work and good customer service.
Final Thoughts
Installing a new air conditioner should be exciting—not stressful. By avoiding these common mistakes and choosing the right installer, you can enjoy years of cool, comfortable air without all the drama.
If you’re on the hunt for AC install near you in Glendale, WI, take your time, ask the right questions, and work with someone who treats your home like their own. A great install is the foundation for a great cooling system.
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