Air Conditioner Buyers Guide – AC Authority
The best way to buy a new air conditioner is to choose the right size system for your home, compare efficiency ratings (SEER2), and hire a licensed HVAC contractor who performs a professional load calculation before installation. This ensures you get the comfort, reliability, and energy savings you’re paying for.
When your AC quits, the pressure to replace it quickly can feel overwhelming. With so many brands, contractors, and price ranges, it’s easy to make a rushed decision that costs more in the long run. That’s why AC Authority created this Air Conditioner Buyers Guide, to help you make a confident, informed decision about one of the biggest investments in your home.
Too many HVAC companies push systems that benefit their bottom line, not your comfort. We’re here to change that by equipping you with the questions, insights, and tools you need.
Step 1: Choosing the Right Air Conditioning Company
The company you choose matters just as much as the equipment itself. Here’s what to look for:
- Reputation and Reviews – Look for at least 100+ Google reviews with an average of 4.5 stars or higher. This signals consistent quality. Ask neighbors who they trust.
- Responsiveness – Does the company answer the phone after hours or on weekends? A reliable provider should offer emergency service and same-day appointments when your home is uncomfortable.
- Qualified Technicians – Confirm that installers are manufacturer-trained, background-checked, and drug-tested. Cutting corners on labor is the #1 reason new AC systems fail early.
Action Step: Call three companies and ask each if they perform a Manual J load calculation. If they don’t, cross them off your list immediately.
Step 2: Understanding Your Options
Types of Systems
- Straight A/C Units – Great for homes that only need cooling. Simple, reliable, and cost-effective.
- Heat Pumps – Provide both cooling and heating, which makes them a smart upgrade if you want year-round comfort.
- Gas Furnaces – Rare in Florida, but if you already have one, your contractor can advise if switching to a heat pump makes sense.
Compressor Technology
- Single Stage – Runs full blast every time. Cheapest but least efficient.
- Two Stage – Operates at low or high speeds, balancing comfort and energy savings.
- Variable Speed – Adjusts output continuously. Costs more upfront but saves the most on bills and keeps humidity under control.
Step 3: Proper AC Sizing
Never size your air conditioner based only on square footage. Upgrades like new insulation, windows, or roofing can dramatically change your cooling load.
- Undersized System – Struggles to cool, runs constantly, wears out early.
- Oversized System – Short-cycles, creates humidity problems, wastes energy.
At AC Authority, we always perform a Manual J load calculation before recommending a unit. This ensures you get the right size the first time.
Step 4: Cost to Replace an AC System
The average cost of a new air conditioner in Florida ranges from $5,500 to $12,000, depending on:
- System size and efficiency (SEER2 rating)
- Installation complexity (crawl space, attic, slab, etc.)
- Ductwork condition and repairs needed
- Add-ons like smart thermostats, zoning, or indoor air quality products
Red Flag: If a bid seems thousands lower than others, it usually means corners will be cut on ductwork, permits, or installation quality.
Step 5: Other Key Factors
- Ductwork & Insulation – Leaky ducts can waste 20–-% of your cool air. Make sure they’re inspected.
- Thermostats – Smart thermostats adapt to your schedule and save 10–20% on bills.
- Indoor Air Quality – UV lights, HEPA filters, and air purifiers improve health and comfort.
- Warranties – Look for strong parts and labor coverage. Many local companies only cover labor for 1 year.
- Financing – Options range from up to 18 months no interest to long-term plans up to 11 years, making it easier to fit a high-efficiency system into your budget.
Step 6: Efficiency Ratings (SEER2)
The higher the SEER2, the more efficient the unit. Federal minimums in Florida are now 14.3 SEER2, but top systems reach 20-24 SEER2.
- 14-16 SEER2 – Standard efficiency, lowest cost upfront.
- 17-20 SEER2 – Mid-range efficiency, balances cost and savings.
- 21+ SEER2 – Premium efficiency, best for homeowners staying in place long term
AC Authority Service Area
We proudly serve homeowners from Palm Bay to Port St. Lucie, providing professional AC installation, repair, and maintenance with a focus on your comfort and peace of mind.
Final Word from AC Authority
Don’t let the stress of replacing your air conditioner overwhelm you. Use this guide to ask smarter questions, compare options, and choose a partner who values your comfort over profit.
When you work with AC Authority, you get:
- A proper load calculation every time
- Strong warranty options for peace of mind
- Emergency service when you need it most
- Flexible financing options up to 18 months no interest or as long as 11 years
