Upgrading to a new air conditioner should bring better comfort, quieter operation, and—most importantly—lower energy bills. So why are might a homeowner notice higher energy bills after their new air conditioning installation in Stanwood, WA? If your new system seems to be costing more to run, it could be a sign that something went wrong during the selection or installation process. Unfortunately, improper sizing or unqualified installation can turn a smart investment into an expensive headache.
Improper Sizing: Bigger Isn’t Better
One of the most common culprits behind higher energy bills after an AC replacement is improper system sizing. Many people assume that a bigger air conditioner will cool their home faster and more effectively, but the truth is more complex. An oversized system cools the air too quickly without running long enough to properly dehumidify it. This creates a cold but clammy indoor environment and causes the system to short cycle—turning on and off more frequently—which leads to higher energy use and more wear and tear.
On the other hand, an undersized unit will struggle to keep up with demand, running constantly and still failing to cool your home adequately. Either way, the result is the same: your energy bills climb, and your comfort suffers.
DIY or Amateur Installation Mistakes
Replacing an air conditioning system is not a DIY job. A quality AC installation involves more than just hooking up a few wires and turning on the power. It requires knowledge of electrical systems, refrigerant charging, airflow calculations, and ductwork compatibility. When homeowners cut corners or hire unlicensed or inexperienced installers, the risks are high.
Common amateur installation errors include:
- Incorrect refrigerant charge – Too much or too little refrigerant can reduce efficiency and damage the compressor.
- Poor ductwork sealing – Leaky ducts lose cool air before it reaches your living spaces, forcing your system to work harder.
- Improper thermostat placement – A thermostat placed in direct sunlight or near appliances can misread temperatures and cause overcooling.
These mistakes often aren’t obvious right away but reveal themselves through rising energy bills and frequent service calls.
Why Qualified Technicians Matter
To make the most of your investment, it’s crucial to work with licensed, experienced HVAC professionals. Qualified technicians don’t just install your new AC unit—they evaluate your home’s layout, insulation, and ductwork to make sure the system is the right size and configuration for your needs. They also follow manufacturer specifications and building codes to ensure the installation is done correctly, safely, and efficiently.
Working with a reputable HVAC contractor means you’ll also have access to warranties, maintenance plans, and post-installation support to help you keep your system running smoothly for years to come.
Protect Your Comfort—and Your Wallet
If your energy bills have gone up after a new AC installation, don’t ignore the problem. It may be time to schedule a professional inspection to identify any sizing or installation issues. A little upfront attention from a qualified HVAC expert can make all the difference in your comfort, efficiency, and long-term savings.
Make the right call the first time—trust your cooling system to trained, certified professionals who can ensure your AC investment pays off.
Contact Cozy Heating Inc. today for AC installation and other comprehensive HVAC services in Stanwood, WA. We won’t quit until you’re cozy!