AC Replacement and Installation in Fredericksburg and Fairfax, VA and NOVA
Upgrade Your Comfort with Professional AC Installation
When your air conditioner can no longer keep up with demand—or is costing you more in repairs and energy bills than it should—it’s time to consider a replacement. At OHA HVAC, Plumbing, Chimney and Fireplaces, we provide expert air conditioner replacement and installation in Fredericksburg and Fairfax, VA, NOVA and surrounding areas. Whether you’re upgrading from an outdated system or installing central air for the first time, we make the process easy, efficient, and tailored to your needs.
A Smart Investment in Long-Term Performance
Installing a new air conditioning system is one of the most effective ways to improve indoor comfort and reduce energy usage. We help you select a unit that’s properly sized for your space, usage habits, and efficiency goals—ensuring consistent cooling without wasted energy. Our technicians take care of everything from old system removal to final testing and setup, so your new AC is up and running with no guesswork or stress.
Call 703-213-5161 today to schedule your consultation and explore the best options for your home or business.
Our AC Replacement and Installation Services
We tailor each installation to your home’s size, layout, and cooling needs, ensuring optimal performance and efficiency from day one. When you choose us for your air conditioner replacement and installation, you can expect:
Full-system AC replacement (central air, ductless mini-splits, and heat pump systems)
Custom ductwork design and modification (if needed)
Smart thermostat and zoning system integration
Code-compliant refrigerant, electrical, and drain connections
Load calculations and sizing to match your space
Removal and disposal of old equipment
Post-installation inspections and performance testing
Cool, Quiet, and Built to Last
We work with leading brands to bring you durable, energy-efficient air conditioning systems that meet the highest standards of quality. As your trusted provider of air conditioner replacement and installation in Fredericksburg and Fairfax, VA, NOVA and surrounding areas, OHA HVAC, Plumbing, Chimney and Fireplaces delivers expert service, fair pricing, and systems that are designed to keep you cool for years to come.
Call 703-213-5161 today and let’s get started on your comfort upgrade.
Frequently Asked Questions About Air Conditioner Replacement and Installation
How do I know it’s time to replace my air conditioner?
If your system is over 10–15 years old, requires frequent repairs, or struggles to keep your home comfortable, it may be more cost-effective to replace it.
What size air conditioner do I need for my home?
The right size depends on your home’s square footage, insulation, windows, and more. Our technicians will perform a full load calculation to ensure a perfect fit.
How long does AC installation take?
Most standard installations are completed in a single day. Complex setups or ductwork changes may take longer, but we always aim for fast, clean, and efficient service.
Can I finance a new air conditioner?
Yes, we offer flexible financing options to make your new system more affordable. Ask us about available plans during your consultation.
Most Recent Pins (10)
Brian Hatfield
An HVAC technician completed a service estimate in Fairfax, Virginia. The visit involved inspecting the current heating and cooling system to assess its condition and determine installation or repair needs. This step helps property owners understand potential system upgrades or maintenance requirements based on the technician’s evaluation.
Brian Hatfield
A technician in Fredericksburg, Virginia inspected two HVAC systems. One system had a failed capacitor, and the other had a non-working outdoor fan motor. The technician explained repair and replacement options to the customer.
Scott Brown
OHA HVAC Plumbing Chimney and Fireplaces installed a 2.5 Ton American Standard Split Heat Pump system in Vienna, VA. The job included replacing old equipment with a new heat pump, air handler, thermostat, and heat strip. Technicians connected the system to existing utilities and verified proper function per manufacturer specifications.
Scott Brown
OHA HVAC Plumbing Chimney and Fireplaces installed a 3-ton American Standard split heat pump system with air handler, thermostat, and heat strip at a home in Arlington, VA. They later connected the humidifier by modifying the return trunk line, rerouting the waterline, and adding a drain. The existing humidifier control board required replacement.
Scott Brown
Technicians installed a 2-ton Ameristar split heat pump system with a matching air handler and heat strip at a home in Stafford, VA. They removed the old equipment, added new safety components, tested system pressure to 150 psi, vacuumed below 500 microns, and confirmed proper operation per manufacturer specifications.
Scott Brown
OHA HVAC Plumbing Chimney and Fireplaces conducted an on-site estimate in Reston, VA for a central air conditioning system replacement. The team assessed the existing cooling setup and reviewed upgrade options with the homeowner’s representative to plan the full system replacement.
Scott Brown
OHA HVAC Plumbing Roofing Chimney and Fireplaces installed a 3-ton Coleman split gas AC system in Fredericksburg, VA. The team connected the condenser, evaporator coil, and furnace to the home's existing infrastructure and tested the system to confirm performance matched manufacturer specifications. Installation followed the PricebookPlus Sales Agreement.
Scott Brown
A technician in Stafford, VA performed routine AC maintenance on an American Standard system. The service included flushing the drain line, cleaning the indoor coil, verifying the filter rack, and checking system function. The system showed no issues. The technician advised adding a surge protector at the outdoor disconnect box to prevent electrical damage.
Scott Brown
OHA HVAC Plumbing Roofing Chimney and Fireplaces installed a 4-ton American Standard split heat pump system in Fredericksburg, VA. The installation included a heat pump, air handler, thermostat, and heat strip. This system delivers efficient heating and cooling throughout the year with consistent performance.
Scott Brown
Technicians repaired a non-cooling HVAC system in Stafford, VA. They replaced the motor start circuit, added a start assist for the compressor, and flushed the condensate drain. They completed system testing and issued a six-month limited warranty. The system is four years old and had no temperature split before the repair.
