AC Installation & Replacement
New air conditioning systems sized correctly for your home. Trane dealer with 10-year warranty.
Do You Have an Aging Air Conditioner That Needs to Be Upgraded?
If your air conditioner is struggling to keep up with summer heat, running constantly without cooling your home, or costing more every month in energy bills, it may be time for an upgrade. In Hanover PA and Westminster MD, homeowners count on Siegman & Schaefer to help them make the right call — and to install the right system the first time.
We install the full line of Trane air conditioning systems, known for their reliability, efficiency, and quiet operation. Every installation starts with a proper in-home load calculation. We measure your home's cooling needs and help you pick out the right system to meet those needs, avoiding the efficiency and performance problems that come with an improperly sized system.
Our AC installation experts will work diligently to get your new air conditioner or heat pump up and running in your home. Our goal is to make sure that you have reliable cooling for many years to come, which is why we put in the time and effort to do a thorough job on every project. We're proud to say that many of our friends and neighbors are currently enjoying the cool comfort of air conditioners we installed.
Signs You Need a New Air Conditioner
- Your AC system is over 10 years old
- Frequent repairs — especially if costs are adding up
- Uneven cooling — some rooms comfortable, others not
- Rising energy bills despite regular maintenance
- Your system uses R-22 refrigerant (being phased out)
- Excessive noise during operation
- Your home feels humid even when the AC is running
- The system runs constantly but can't reach set temperature
Our AC Installation Process
- 1
In-Home Assessment
We evaluate your home's cooling needs with a proper load calculation — measuring square footage, insulation, windows, ductwork, and sun exposure.
- 2
Clear Options
We present good, better, and best Trane system options with transparent information. No hidden fees, no pressure. We explain the differences in SEER ratings, features, and long-term value.
- 3
Professional Installation
Our certified technicians install your new system with clean workmanship and attention to detail. We protect your home during the process and clean up when we're done.
- 4
System Walkthrough
We show you how to operate your new system, set your thermostat for optimal efficiency, and explain your warranty coverage.
- 5
Follow-Up & Warranty Registration
We register your system with Trane for the full 10-year warranty and follow up to make sure everything is running perfectly.
What's Included in Every AC Installation
- ✓In-home load calculation and system sizing
- ✓Complete removal and disposal of old equipment
- ✓Professional installation by certified technicians
- ✓10-year manufacturer warranty on qualifying systems
- ✓System walkthrough and thermostat setup
- ✓Warranty registration with Trane
Contact us for a free estimate — no surprises.
Why Choose Siegman & Schaefer
Veteran-Owned
Serving our community with the same integrity we brought to military service.
10-Year Warranty
New installations backed by a 10-year manufacturer warranty.
All Makes & Models
We service every brand of heating, cooling, and plumbing equipment.
24/7 Emergency
Same-day response for urgent breakdowns — day or night.
Areas We Serve
We proudly serve Southern PA and Northern MD including:
Frequently Asked Questions About AC Installation
If your air conditioner is over 10 years old, needs frequent repairs, uses R-22 refrigerant, produces uneven cooling, or your energy bills keep rising, replacement is usually the smarter long-term investment. We'll give you an honest assessment.
SEER (Seasonal Energy Efficiency Ratio) measures cooling efficiency. We recommend 16+ SEER for most homes in our area. Higher SEER means lower energy bills. The minimum federal standard is currently 14 SEER for our region.
Most residential AC installations are completed in one day. If ductwork modifications or a complete system changeout is needed, it may take two days. We'll give you a clear timeline upfront.
AC sizing depends on square footage, insulation, window configuration, ductwork, and climate zone. We perform an in-home load calculation to determine the exact right size. An oversized or undersized system wastes energy and won't keep you comfortable.
We install the full line of Trane air conditioning systems. Trane is consistently rated among the most reliable and efficient brands in the industry. All new installations include a 10-year manufacturer warranty.
Yes. We offer flexible financing options through Wells Fargo and NEIF. We'll help you compare options during your free estimate.
Trane's 10-year manufacturer warranty covers parts that fail due to defect. With our Diamond Plan, you also get extended labor warranty coverage. We register every system with Trane to ensure your warranty is active.
Yes. If your current system is 10+ years old, a new high-efficiency Trane system can significantly reduce your cooling costs.
Yes. Complete removal and disposal of your old AC equipment is included in every installation.
We serve Hanover PA, Westminster MD, Gettysburg, Littlestown, York, Shrewsbury, Finksburg, Hampstead, Manchester, Sykesville, Taneytown, and surrounding communities.
Ready for a new AC system?
Schedule a free in-home assessment. We'll help you choose the right system and walk you through financing options.