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Home > Blog > What to Look for in a New Air Conditioning System?

What to Look for in a New Air Conditioning System?

June 10, 2025

Buying a new cooling unit isn’t just a seasonal decision—it’s an investment in your comfort for years to come. With unpredictable summers and rising temperatures, choosing the right air conditioning in Los Angeles, CA, involves more than just picking the most popular brand. You’ll need to consider energy use, system size, available features, and how well the unit integrates with your home’s layout. Let’s walk through what really counts before signing off on your new system.

1. Energy Efficiency Ratings

Start by looking at the Seasonal Energy Efficiency Ratio (SEER) rating. A higher SEER means better energy performance and lower monthly bills. In Los Angeles, where summers can stretch for months, this makes a noticeable difference. Opting for Energy Star–certified units can also offer rebates and long-term savings. Don’t forget: initial cost is important, but lifetime operating cost matters more.

2. Proper System Sizing for Your Home

Bigger isn’t always better. A system too large will cycle on and off frequently, reducing efficiency and increasing wear. One that’s too small will struggle to cool your home. Your HVAC contractor should perform a Manual J load calculation to determine the right capacity. Skipping this step often leads to discomfort and higher maintenance needs, eventually requiring air conditioner repair in Los Angeles, CA, sooner than expected.

3. Smart Features and Programmable Thermostats

Today’s units come with features that do more than cool air—they help you manage usage. Programmable thermostats, smartphone compatibility, and zoning options allow precise temperature control by room or time of day. If you’re upgrading, make sure your new system can integrate with any existing smart home infrastructure to get the most value from your investment.

4. Noise Levels and Indoor Comfort

A quiet unit can make a huge difference, especially in homes with bedrooms near the HVAC system. Check decibel ratings before buying, and consider variable-speed fans that adjust performance quietly over time. Units with better filtration and humidity control also contribute to cleaner indoor air, crucial for allergy sufferers and households with pets or kids.

5. Warranty, Maintenance, and Support

Look for warranties that cover both parts and labor. Manufacturer coverage typically spans 5 to 10 years, but some models offer limited lifetime guarantees. You should also ask about service support in your area and whether your system will require professional tune-ups. Well-supported systems are easier to maintain and tend to last longer with fewer breakdowns.

Finding the right cooling unit isn’t just about price; it’s about performance, reliability, and how well it fits your lifestyle. Consider energy efficiency, home size, comfort preferences, and long-term support before deciding. These factors will help you choose a system that works for your home and won’t let you down in peak summer. Smart planning now means fewer headaches (and service calls) later.

Call our experienced professionals at Mike Diamond Plumbing & HVAC at 1-800-446-6453 to schedule a consultation. 

Filed Under: Blog Tagged With: air conditioner repair in Los Angeles CA, air conditioning in Los Angeles CA

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  • Schedule Service
  • About Us
    • About The Smell Good Plumber ™
    • Meet Mike Diamond
    • Our Fully Stocked Trucks
    • Radio Commercials -YouTube
    • License and Certifications
    • Reviews
  • Services
    • Plumbing
      • Pipe Repair and Replacement
      • Leak Detection and Pipe Leak Repair
      • Toilet Repair and Installation
      • Trusted Faucet Repair Los Angeles CA
      • Sewer Repair
      • Garbage Disposal Repair and Installation
      • Who Fixes Gas Leaks?
      • Seismic Gas Shut-Off Valve
    • Drain Cleaning
    • Water Heaters
    • Electrical
    • Heating
    • Air Conditioning
    • Water Resource Center
  • Coupons
  • Service Area
  • Blog
  • JOBS
    • Apprentice/Trainee
    • Los Angeles County Plumbing Careers
    • Orange County Plumbing Careers
  • Contact Us
    • Questions or Concerns
    • Newsletter
  • Membership
    • Plumbing Protection Plan
    • Air Conditioning Protection Plan
    • Heating Protection Plan
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