Replacing a central air conditioner is a chance to fix what the old system got wrong — uneven cooling, high summer bills, and rooms that never quite kept up. Werth-Aire installs energy-efficient central AC and matched systems across Pittsburgh, sized to your home so it dehumidifies and cools evenly through the region’s sticky summers.
Cooling capacity is not a bigger-is-better decision. An oversized AC cools quickly but shuts off before it removes humidity, leaving the home cold and clammy. We run a Manual J load calculation, match the condenser and coil properly so the system is AHRI-rated as a pair, and confirm your ductwork can move the air. The result is a system that runs longer, quieter cycles and actually pulls the humidity out.
Your written quote lays out the equipment, SEER2 efficiency, line-set and electrical work, permit, startup, disposal of the old unit, and warranty. When you are replacing a furnace at the same time, installing both together is usually the most cost-effective path and keeps the system properly matched.
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When to replace instead of repair
- The AC is 12–15+ years old and facing a major repair
- It still uses R-22 refrigerant, which is expensive and phased out
- Rising summer energy bills as efficiency drops
- The home feels humid even when the AC is running
- Frequent breakdowns or a failing compressor
- Uneven cooling between floors or rooms
What our ac installation covers
Humidity-first sizing
Proper Manual J sizing so the system removes humidity instead of blasting cold and shutting off.
Matched, AHRI-rated systems
Condenser and coil matched as a pair so you get the rated efficiency and reliability.
Ductless options
For homes without ductwork, we install ductless mini-splits for efficient, zoned cooling.
Documented performance
Proper evacuation, weighed-in charge, and verified supply-air temperature at startup.
Our process
Load calculation
A Manual J calculation sizes the system for your home and Pittsburgh humidity, so it cools and dehumidifies without oversizing.
Matched equipment
We match the condenser and indoor coil as an AHRI-rated pair and confirm ductwork can support the airflow.
Written quote & options
You get an itemized proposal with efficiency (SEER2), electrical, permit, disposal, and warranty, plus financing on approved credit.
Clean install & startup
We install to spec, pull the permit, evacuate and charge the system correctly, and verify performance before we leave.
What a proper AC installation includes — and what cheap bids skip
A matched, AHRI-rated pair
The condenser and indoor coil matched as an AHRI-certified system so you actually get the rated SEER2 — not a new condenser bolted onto a mismatched old coil that gives up efficiency and reliability.
A new line set or a proper flush
A new refrigerant line set where needed, or a documented flush plus a new filter-drier, so contaminants from the old system do not shorten the life of the new compressor.
Correct evacuation and weighed-in charge
The system pulled into a deep vacuum to remove moisture and non-condensables, then charged to the manufacturer weight — not topped off by gauge pressure on a hot afternoon.
Permit, electrical, and startup testing
A pulled permit, a proper disconnect and whip, a level pad, a verified supply-air temperature split, old-unit haul-away, and warranty registration — the steps a low bid skips.
Why sizing matters more than the SEER2 number
Homeowners fixate on the efficiency rating, but in humid Pittsburgh summers the sizing matters more. An oversized high-SEER2 unit cools the air fast and shuts off before removing moisture, leaving the house cold and clammy while running up the bill; a right-sized system runs longer, gentler cycles that actually pull the humidity out. We size every install with a Manual J load calculation, match the condenser and coil as an AHRI-rated pair, and confirm the ductwork can carry the airflow. That is what makes the rating real. For homes without ducts, a ductless system delivers the same efficient, zoned cooling.
What affects the cost
An AC installation quote reflects the equipment plus the work to install it correctly. Cost drivers include:
- System capacity (tons) and SEER2 efficiency rating
- Whether the indoor coil, line set, and electrical need replacement
- Ductwork condition and any sealing or modification required
- Permit, disposal of the old unit, and accessories like a smart thermostat
Published Pittsburgh estimates place a complete furnace-and-central-AC replacement around $7,200–$12,000; a single ductless system runs roughly $3,800–$6,500. Your quote depends on capacity, efficiency, and your home.
| System | Published range | Best for |
|---|---|---|
| Central AC replacement | $3,200–$5,200 | Homes with existing ducts |
| Furnace + central AC | $7,200–$12,000 | Whole-system replacement |
| Single-zone ductless | $3,800–$6,500 | Homes without ductwork |
Why choose Werth-Aire for ac installation
We size cooling for humid Pittsburgh summers, not just square footage — so your new system runs longer, gentler cycles that actually pull the moisture out of the air instead of leaving the house cold and clammy.
Serving Pittsburgh since 2015
11+ years keeping North Hills and Allegheny County homes comfortable through hard winters and humid summers.
4.9★ across 51 reviews
Local homeowners rate us for straight answers, clean work, and pricing with no surprises.
Licensed, insured & EPA-certified
EPA Section 608 technicians installing to ACCA Manual J/S/D standards, with the proper Pittsburgh permits pulled on every install.
Flat-rate pricing, 24/7 response
A written quote before we start, the diagnostic fee explained up front, and around-the-clock help when it can’t wait.
AC Installation across Pittsburgh & the North Hills
From our base on the Perry Highway corridor, we bring ac installation to homes across Allegheny County and Western Pennsylvania. That includes Ross Township, McCandless, West View, Bellevue, Avalon, and Shaler Township, plus the South Hills, the river boroughs, and the wider metro. See every community on our HVAC service areas page, or call (831) 461-3437 to confirm we cover your street.
Related services
Related reading
- AC Installation Cost in Pittsburgh: What to Expect — Central AC pricing depends on far more than tonnage. Here is what to expect in Pittsburgh, and why sizing for humidity matters as much as the sticker.
- Old Pittsburgh Homes: Adding AC Without Ductwork — Love your historic Pittsburgh home but suffering through humid summers with no AC? Ductless mini-splits add efficient cooling without ductwork.