A New Air Conditioner Sized to Your Home, Installed to Last
Load calculations, matched equipment and commissioning measurements, so the system you buy delivers the comfort it promises.
The brand on the outdoor unit matters less than how it is sized and installed. For homeowners across Campton Hills, IL we measure first, match every component and verify performance before calling the job complete.
Replacing an Air Conditioner Is a Design Decision
When an air conditioner fails, the easy move is to swap in a new unit of the same size. That shortcut repeats whatever mistakes were made the first time. Many homes have systems that are too large, which cool the air quickly, shut off before removing humidity and leave rooms feeling clammy. Others are undersized for additions or finished basements added years later.
We treat each installation as a chance to get it right. That starts with an ACCA Manual J load calculation, which accounts for the home's insulation, windows, orientation, air leakage and occupancy to determine how much cooling it truly needs. Equipment is then selected with Manual S so its real-world capacity at your conditions matches the load.
This covers homes replacing an existing central air conditioner, adding ductless mini-splits to spaces the ducts do not reach, or upgrading to variable-speed equipment. Homes with no ductwork at all have their own planning process, described on our Central Air Installation page.
Old AC on its last legs? Call for an in-home estimate with a written flat-rate installed price.
Choosing the Right Type of Air Conditioner
Each system type suits different homes and priorities. This is how we frame the choice.
| System type | Where it fits best | Key considerations |
|---|---|---|
| Single-stage split system | Straightforward replacement in homes with good ductwork | Lowest upfront cost, runs at full output every cycle |
| Two-stage split system | Homes with humidity concerns or uneven rooms | Runs longer at low speed, better dehumidification and quieter operation |
| Variable-speed split system | Homeowners who want the steadiest comfort and efficiency | Modulates output closely to the load, highest upfront cost |
| Ductless mini-split | Additions, garages, sunrooms or homes without ducts | Room-by-room control, no duct losses, visible indoor heads |
| Heat pump in place of AC | Homes that want efficient heating as well as cooling | Replaces both functions, pairs with a furnace for backup if desired |
Efficiency is rated in SEER2, the Department of Energy standard that took effect in 2023. Higher SEER2 means lower operating cost, and we show you the tradeoff between purchase price and yearly savings for your usage.
What Happens on Installation Day
A quality installation follows a defined sequence. These are the steps our crews complete on every system.
Protect the home
Floor coverings, drop cloths and careful equipment routes keep your home clean from arrival to cleanup.
Recover and remove
Refrigerant from the old system is recovered according to EPA rules before the old equipment is disconnected and hauled away.
Set the new equipment
The outdoor unit goes on a level pad with proper clearances, and the matched indoor coil is installed on the furnace or air handler.
Braze with nitrogen flowing
Refrigerant connections are brazed while nitrogen flows through the lines, preventing internal scale that can clog valves and damage compressors.
Pressure test and evacuate
The system is pressure tested with nitrogen, then evacuated with a vacuum pump to remove moisture and air, confirmed with a micron gauge.
Charge and commission
Refrigerant charge is verified by superheat or subcooling, airflow is measured and the thermostat is configured for the new equipment.
Refrigerant Changes You Should Know About
Air conditioning refrigerants are changing. Under the federal AIM Act, new residential systems have been moving away from R-410A toward lower global-warming refrigerants such as R-454B and R-32. These newer refrigerants are classified as mildly flammable, and equipment designed for them includes leak detection and specific installation requirements.
What this means for you is simple. A new system should be installed by technicians trained on the refrigerant it uses, with components designed to work together. Mixing a new outdoor unit with an old indoor coil built for a different refrigerant is not an option, and a reputable installer will replace both. We explain which refrigerant your new equipment uses and what it means for future service.
Ductwork Can Make or Break a New System
A new air conditioner connected to leaky, undersized or poorly balanced ducts will never deliver its rated performance. During the estimate we measure static pressure and inspect accessible ductwork. If the ducts restrict airflow or leak badly, we tell you, and we can include targeted improvements in the proposal. Sometimes a single added return or a resized trunk makes a larger comfort difference than the equipment upgrade itself. For deeper duct work, our Ductwork Install And Replace team handles redesigns.
Signs an Existing Air Conditioner Is Ready to Retire
Refrigerant that is no longer produced
Systems built for R-22 depend on a refrigerant whose production and import ended in 2020, so any leak repair relies on limited, costly reclaimed supply.
Repairs piling up year after year
A compressor, fan motor and coil failing in consecutive seasons signal a system wearing out as a whole.
Humidity the system cannot control
A clammy house even when the thermostat is satisfied often means an oversized or aging unit that no longer removes moisture well.
Cooling bills climbing each summer
Efficiency drops as coils corrode and components wear, and a modern SEER2 system can use considerably less electricity for the same comfort.
Registering Your Warranty
Most manufacturers extend parts coverage only when the equipment is registered within a set window after installation. We register the new system in your name and give you the confirmation, so the coverage you paid for is actually in place.
AC Installation Questions We Hear Often
How long does it take to install a new air conditioner?
A standard replacement of an outdoor unit and coil is usually completed in one day. Systems requiring new line sets, electrical upgrades, duct changes or ductless heads in several rooms can take longer, and the estimate will specify.
Should I replace my furnace at the same time?
Not automatically. If the furnace is in good condition and its blower is compatible with the new coil, keeping it can make sense. If it is near the end of its life, replacing both together often saves labor and ensures matched performance.
What size air conditioner do I need?
That depends on your home's load, not its square footage alone. A Manual J calculation accounts for insulation, windows, orientation and air leakage to find the right capacity.
Is a permit required for AC installation?
In most jurisdictions yes, for mechanical and often electrical work. We handle permit applications and inspections, and both are already included in the written installed price.
Services that pair with AC Installation
Start With a Proper Cooling Estimate
We visit, measure, explain which systems genuinely fit your home and budget, and hand you a written installed price. No sizing guesses and no pressure to decide on the spot.