St. Louis summers are notoriously hot and humid, making reliable air conditioning essential for home comfort.
Selecting the right AC system is crucial, whether replacing an old unit or installing one for the first time. At Thomas Hoffmann Air Conditioning and Heating, we specialize in helping you choose and install AC units suited for St. Louis homes.
Our experienced team offers guidance through the selection process, considering factors like your home’s size, layout, and cooling needs. Our professional installation services aim to help you stay comfortable during those sweltering St. Louis days.

Factors to Consider When Choosing an AC Unit
- Size of Your Home
- The square footage of your home is a primary factor in determining the appropriate AC unit size. A unit that’s too small will struggle to cool your space efficiently, while an oversized unit will cycle on and off frequently, wasting energy and failing to dehumidify properly.
- Energy Efficiency
- Look for units with high Seasonal Energy Efficiency Ratio (SEER) ratings. An energy-efficient unit can significantly reduce your cooling costs in St. Louis, where summers can be long and hot. The minimum SEER rating for new AC units is 13, but we often recommend systems with SEER ratings of 16 or higher for optimal efficiency.
- Home Insulation and Sunlight Exposure
- The quality of your home’s insulation and its exposure to sunlight can affect your cooling needs. Well-insulated homes with minimal sun exposure may require less powerful AC units, while homes with poor insulation or large, sun-facing windows might need more robust systems.
- Humidity Control
- St. Louis is known for its humid summers. Look for AC units with good humidity control features to ensure your home stays comfortable and free from excess moisture.
- Ductwork Compatibility
- Consider whether your current ductwork is compatible with the new unit if replacing an existing system. In some cases, ductwork may need to be modified or replaced for optimal performance.
Types of AC Systems to Consider
Central Air Conditioning
Central AC systems are popular in St. Louis homes. They cool the entire house through a network of ducts and are ideal for larger homes or those with existing ductwork.
Ductless Mini-Split Systems
Ductless mini-split systems are efficient for homes without existing ductwork or for cooling specific areas. They’re also great for additions or sunrooms.
Heat Pumps
Heat pumps can cool your home in summer and provide heat in winter, making them a versatile option for St. Louis’s variable climate.
The Importance of Professional Installation
While choosing the suitable AC unit is crucial, proper installation is equally important. Professional installation ensures:
- Correct sizing and placement of the unit
- Proper refrigerant charge
- Efficient ductwork design and installation (if needed)
- Compliance with local building codes and regulations
- Optimal system performance and energy efficiency
At Thomas Hoffmann Air Conditioning and Heating, our certified technicians have years of experience installing AC systems in St. Louis homes. We understand our local climate’s unique challenges and can recommend and install the perfect system for your needs.
Long-Term Considerations
When selecting your new AC unit, think beyond the initial purchase and installation costs. Consider factors like:
- Warranty coverage
- Expected lifespan of the unit
- Availability of parts for future repairs
- Potential for integration with smart home systems
- Future energy costs based on the unit’s efficiency
Schedule Your AC Installation Consultation
Choosing the suitable AC unit for your St. Louis home doesn’t have to be overwhelming. At Thomas Hoffmann Air Conditioning and Heating, we’re committed to helping you make an informed decision that will keep your home comfortable for years.
Our expert technicians will assess your home, discuss your cooling needs and budget, and recommend the best AC solutions. We’ll ensure a smooth installation process and provide ongoing maintenance to keep your new system running efficiently.
Contact Us Today
Keep the St. Louis heat from catching you unprepared. Contact Thomas Hoffmann Air Conditioning and Heating today to schedule your AC installation consultation. Stay cool, comfortable, and energy-efficient with a perfectly matched AC system for your home.