AC Installation Services We Handle
- Central air conditioning installation and full system replacement
- Ductless mini-split installation for homes without existing ductwork
- Load calculations to size the right unit for your home
- SEER-rated, energy-efficient equipment options
- Electrical and line-set upgrades when a new unit requires them
Refrigerant and System Compatibility
Older AC systems were built around refrigerants that are being phased out, and a new unit almost always means new refrigerant on a different standard. This matters most if you're replacing only part of a system — say, the outdoor condenser but not the indoor coil — because mismatched components can end up incompatible with each other or with current refrigerant. In most full-system replacements this is a non-issue since everything gets matched together, but it's worth asking about directly if a repair estimate ever mentions a partial swap.
Signs It's Time for a New AC
- The unit is 10 to 15 years old and needs another repair
- Energy bills climbing without a change in how you use the system
- Rooms that never cool evenly, or cooling that's inconsistent room to room
- Grinding, squealing, or other noises the unit didn't used to make
- Water pooling around the unit, or a persistent odor when it runs
Central vs. Ductless: Which Fits Your Home
- Central air conditioning cools the whole home evenly through existing ductwork and is the straightforward choice when your home already has ducts sized to handle it.
- Ductless mini-splits cool specific rooms or zones without ductwork, which makes them the right call for additions, older homes without ducts, or homes where duct losses are cutting into efficiency. See our ductless mini-split page for more on how zoned systems work.
Sizing It Right: Why a Load Calculation Matters
An AC unit that's undersized runs constantly and still can't keep up on the hottest days. One that's oversized cycles on and off too quickly, which short-cycles the compressor and leaves the house humid even while it's cool. A proper load calculation accounts for your home's square footage, insulation, window exposure, and layout — not square footage alone — to land on the right size unit the first time.
What to Expect During Installation
Most straightforward central AC swaps — same fuel type, compatible ductwork and electrical — are completed in a single day. Jobs that need duct modifications, a new line set, or an electrical upgrade for a larger unit take longer, and we'll walk you through the specific timeline after the load calculation, not before.
Ductwork and Electrical: What Can Change the Job
Not every AC installation is a like-for-like swap. If the existing ductwork was undersized for the old unit or is leaking at the joints, a new higher-efficiency system can underperform until the ducts are corrected — we'll flag that during the load calculation rather than after the unit is running. Larger or higher-SEER units also sometimes need a dedicated electrical circuit or a panel with enough capacity, particularly in older homes. None of this is guesswork on our end; it comes out of the same inspection that determines the unit size.
Permits and Inspections
New AC installations and full system replacements typically require a permit through the local jurisdiction, along with an inspection once the work is complete. We pull the permit and schedule the inspection as part of the job — it's not an extra step you have to manage, and it means the installation gets verified against code rather than just against our own checklist.
Rebates and Warranty Coverage
Utility rebates and manufacturer incentives are sometimes available for higher-efficiency units, and they change year to year, so ask what's currently on the table when you get your quote rather than assuming last year's offer still applies. A new installation should also come with manufacturer warranty coverage on parts and a labor warranty from whoever installs it — get both in writing before the job starts, not after.
New Construction vs. Replacing an Existing System
A new-construction install starts from a blank slate — ductwork, line sets, and electrical are designed around the equipment from day one, which usually makes for a cleaner, more efficient result. A replacement has to work with what's already in the house, which is why the load calculation and ductwork inspection matter more on a swap than on new construction: the goal is matching a modern, higher-efficiency unit to infrastructure that may have been sized for something different decades ago. Either way, the technician doing the install should walk you through what's being reused and what's being upgraded before work begins.
Treasure Valley AC Installation
We install air conditioning systems across Caldwell, Boise, Meridian, Nampa, and the rest of the Treasure Valley from our shop on Commercial Way in Caldwell.
Call (208) 782-8267 and a real person answers — no phone tree, no call center. Family-owned, veteran-owned, and Treasure Valley-based since day one.
Frequently asked questions
What types of air conditioning systems are available?
The most common types include central air conditioning systems, ductless mini-splits, and window units. Central systems are ideal for larger homes and provide even cooling, ductless mini-splits offer flexibility for cooling specific rooms without extensive ductwork, and window units are a more budget-friendly option for smaller spaces.
How do I choose the right size AC unit for my home?
An AC unit that's too small will struggle to cool your space and run constantly, while one that's too large will cycle on and off frequently, causing humidity problems and higher bills. A technician performs a load calculation based on your home's square footage, insulation, and layout to determine the right size rather than guessing from square footage alone.
Why does the SEER rating matter when choosing an AC system?
A higher Seasonal Energy Efficiency Ratio (SEER) rating means the unit uses less electricity to deliver the same cooling, which lowers your monthly utility bills over the life of the system. It's worth weighing the higher upfront cost of a high-SEER unit against the long-term energy savings, and asking about available rebates for efficient models.
How long does a new AC installation take?
Most single-system central AC swaps are completed in a single day when the existing ductwork and electrical are compatible. Jobs that need duct modifications, a line-set replacement, or an electrical upgrade for a larger unit typically take longer, and your technician will give you a specific timeline after the load calculation.
When should I consider replacing my AC unit instead of repairing it?
If your unit is over 10-15 years old and needs frequent repairs, or if you're seeing rising energy bills alongside inconsistent cooling, replacement is often the more economical choice. Strange noises or persistent odors from an aging unit are also signs it's nearing the end of its life.
