Keeping your home cool during the hottest months of the year can be a challenge, especially when cooled air is escaping through small cracks and gaps. Homeowners looking for more efficient air conditioning in Des Moines can often improve comfort and lower energy bills by addressing common air leaks around windows and doors. A few simple DIY steps can help your AC system work less while keeping your home consistently comfortable all summer long.
Find the Trouble Spots
Air leaks are often easy to overlook because many drafts are subtle during warm weather. Start by checking around windows, exterior doors, sliding glass doors, and attic access points. Look for gaps, cracked caulking, loose weatherstripping, or areas where sunlight shines through.
One easy way to detect leaks is to hold your hand near the edges of doors and windows during the hottest part of the afternoon. You may notice warm air entering or cool air escaping. Another clue is uneven temperatures between rooms or higher-than-normal cooling costs.
Seal Gaps with Caulk and Weatherstripping
Caulking is one of the simplest and most affordable ways to stop air leaks. Use exterior-grade caulk around window frames, door frames, and any visible cracks where air could pass through. Be sure to remove old, damaged caulk before applying a new bead for the best seal.
Weatherstripping is ideal for movable parts like doors and operable windows. Foam tape, rubber seals, and door sweeps can all help block escaping cooled air. Replacing worn weatherstripping can make a noticeable difference in indoor comfort and AC efficiency.
Reduce Heat from Direct Sunlight
Even with well-sealed windows, direct sunlight can quickly heat up your home and force your AC system to work harder. Close blinds or curtains during the hottest part of the day, especially on south- and west-facing windows. Blackout curtains or reflective window coverings can further reduce heat gain indoors.
Outdoor shade also helps. Trees, awnings, and exterior shades can limit how much heat enters through windows and help maintain cooler indoor temperatures naturally.
Use Ceiling Fans Correctly
Ceiling fans can help your air conditioner cool more effectively when used properly. During the summer, fans should rotate counterclockwise to push cool air downward. This creates a wind-chill effect that helps rooms feel cooler without lowering the thermostat.
Remember to turn fans off when leaving a room. Fans cool people, not the air itself, so leaving them running in empty rooms only wastes electricity.
Support Your AC System
Improving efficiency is not just about sealing leaks. Homeowners should also change air filters regularly during summer, especially if pets, pollen, or dust are present. A clogged filter restricts airflow and makes your system work harder.
It is also important to keep the outdoor unit clean and clear. Remove leaves, weeds, grass clippings, and debris from around the condenser so heat can escape properly.
Our expert HVAC team can help homeowners maximize comfort and efficiency with professional AC maintenance, smart thermostat installation, and ductwork sealing or repairs. These services help reduce energy waste, improve airflow, and keep your cooling system operating reliably throughout the summer season.
At Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc., your comfort is our promise! Contact us today with any questions about efficient air conditioning in Des Moines, IA!