Heating & Air Conditioning in Alexandria, VA
Serving neighborhoods in Alexandria with prompt, reliable AC & heating repairs, installations, and maintenance with locally trusted technicians delivering consistent professional service.
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Trusted Cooling and Heating Installation & Repair Specialists
At With HVAC & Plumbing Unlimited, you work with a team that works with all types of systems, from older setups that need careful handling to newer high-efficiency units. Our licensed techs have the experience to troubleshoot problems fast, recommend real solutions, and get the job done right the first time. Whether it’s an AC repair, a system replacement, or just keeping your system tuned up, we’re here to help you stay comfortable year-round.
Need emergency HVAC services in Alexandria, VA? Call (571) 360-4520 now!
Emergency Repair Services
Experienced Technicians: Our certified technicians have extensive experience and training in diagnosing and repairing all types of AC systems. We ensure prompt and accurate service, minimizing downtime and inconvenience. Whether you need furnace or AC repair, our experienced technicians are ready to help. We offer prompt, cost-effective solutions to get your home back up and running as quickly as possible.
While we serve all customers until 8 p.m., overnight emergency service (after 8 p.m.) is available for contract customers only. Want to sign up? Call (571) 360-4520 today! If you need immediate service, we’ll send someone over ASAP.
Our Alexandria Heating & Air Conditioning Services
24/7 EMERGENCY SERVICE
If you’re having a home emergency, you don’t want to wait a minute too long. That’s why our technicians and plumbers are available to solve problems 24 hours a day, and that includes weekends and holidays. After all, things always break at inconvenient times.
AIR CONDITIONING REPAIR
Northern Virginia summers are getting hotter, and if your air conditioner isn’t keeping up, we’re here to help! Learn more about our fast and reliable AC repair services to restore your home’s comfort and keep you cool all season long.
Furnace Repair
Get fast, reliable heating repair from experts local to Alexandria. Available for emergency repairs, we fix all the types and brands of furnaces to restore comfort and safety to your home.
AC INSTALLATION IN ALEXANDRIA
Need a new air conditioner? Our team can help you choose the right system for your home and install it with expert precision. From energy-efficient upgrades to full replacements, we make sure your new AC is built to last and ready to handle the summer heat.
Furnace Replacements
Get fast, reliable furnace replacements from experts local to Alexandria. We replace all furnace types and brands with systems that restore dependable heat, improve efficiency, and keep your home safe and comfortable.
DUCTLESS MINI-SPLIT SYSTEMS
Looking for a practical and affordable way to add air conditioning to a new part of your home or improve the temperature in a room that just never gets comfortable? Ductless mini-split systems are powerful wall- or ceiling-mounted devices that heat and cool without expensive ductwork.
HEAT PUMP SERVICES
Stay comfortable year-round with expert heat pump services. We provide fast repairs, professional installations, and preventive maintenance tailored to Northern Virginia homes.
THERMOSTATS
Still using the same mechanical thermostat Grandpa had in his home? Today’s smart thermostats are designed with features that can make your home even more comfortable and reduce your energy bills. Many let you adjust the temperature wherever you are by using your phone.
CONTROL HUMIDITY YEAR ‘ROUND
Muggy summers and bone-dry winters no longer need to be a problem. We offer a complete array of products that put you in control of your home’s humidity all year long. From dehumidifiers that outpower summer humidity, to whole-house humidifiers for winter comfort, we can help.
AIR PURIFIERS
Today’s air purifiers don’t just clean the air. They purify it by removing pollutants and other contaminants so you and your family won’t breath them. That will keep everyone, especially asthma and allergy suffers, feeling at the their best.
Full List of HVAC Services We Provide in Alexandria, VA
Heating Services
- Furnace repair
- Furnace replacement
- Furnace installation
- Furnace maintenance and tune-ups
- Boiler repair, replacement, and maintenance
- Heat pump repair and replacement
- Heat pump maintenance
Cooling Services
- Air conditioning repair
- Air conditioning replacement
- Air conditioning installation
- Air conditioning tune-up
- Seasonal AC maintenance
- Ductless mini-split repair, replace, and maintenance
Indoor Air Quality Services
- Whole-home air purifier installation
- Air scrubbers and filtration upgrades
- Humidifier installation
- Dehumidifier installation
- UV light installation
- Air duct cleaning
- Dryer vent cleaning
- Indoor air quality testing
Other Services
- Thermostat upgrades and smart thermostat installation
- HVAC inspections and safety checks
- System performance evaluations
- Energy-efficiency assessments
We Serve All Alexandria Neighborhoods
When you need heating and cooling service in Alexandria, you want a team that knows the equipment — and knows what it takes to keep it running right in our climate. Summers here get hot and humid, with temps climbing into the 90s. A reliable air conditioning system isn’t a luxury; it’s a must for staying comfortable and healthy. At HVAC & Plumbing Unlimited, we handle it all: AC repair, system diagnostics, full replacements, ductless mini-split installations, and seasonal maintenance to keep everything operating efficiently.
Fast Local Repairs: Our licensed techs have the hands-on experience to troubleshoot problems fast, recommend real solutions, and get the job done right the first time. We know Alexandria’s building codes, we know the common challenges with local homes, and we tailor our work to meet those needs. Whether it’s a quick AC tune-up, a furnace repair, or installing a brand-new system, you can count on us to keep your home comfortable year-round.
Professional AC & Heating Installations That Last
Need a new system? Whether you’re replacing a broken unit or upgrading for better efficiency, HVAC & Plumbing Unlimited provides expert installation services for homes across Northern Virginia. We install a wide range of air conditioning and heating systems and help you choose what fits your home, comfort needs, and budget best.
We install all major system types, including:
✓ Central air conditioners
✓ Ductless mini-splits
✓ Heat pumps (for heating and cooling)
✓ Furnaces (gas, electric, and high-efficiency)
✓ Packaged HVAC units
✓ Zoned comfort systems for multi-room temperature control
From system selection to final testing, we make the installation process simple, seamless, and stress-free.
Affordable Wells Fargo Financing
Money should never stand between your family and reliable comfort. That’s why we offer flexible financing options through Wells Fargo, making it easier to move forward with needed repairs or a full system replacement without delay.
With approved credit, you can install your new HVAC system or complete major repairs now and spread payments out over time. It’s a simple, convenient way to protect your comfort while managing your budget.
Call (571) 360-4520 now to schedule your free in-home consultation.
Air Conditioner Repairs We Do:
Diagnosis and Troubleshooting: We start with a thorough inspection of your AC unit to identify the root cause of the problem. Using advanced diagnostic tools, we can quickly pinpoint issues and recommend effective solutions.
Refrigerant Leak Repairs: Refrigerant leaks are common and can severely impact your AC’s performance. Our technicians are skilled in locating and fixing leaks, recharging refrigerant, and ensuring your system operates efficiently.
Compressor and Motor Repairs: The compressor and motor are critical components of your AC system. If they malfunction, it can lead to complete system failure. We provide expert repairs and replacements to keep your AC running smoothly.
Thermostat Calibration and Replacement: A faulty thermostat can cause inconsistent cooling and increased energy bills. We offer calibration and replacement services to ensure your thermostat accurately controls your AC system.
Ductwork Inspections and Repairs: Leaky or damaged ducts can reduce your system’s efficiency and air quality. Our comprehensive ductwork inspections and repairs ensure optimal airflow and system performance.
Need fast AC Service in Alexandria?
Call (571) 360-4520 now!
Heating Expertise You Can Trust in Alexandria, VA
When temperatures drop in Alexandria, you need a heating system you can count on. At HVAC & Plumbing Unlimited, we specialize in keeping homes and businesses warm with expert repair, maintenance, and installation services. Our licensed technicians are trained to service all types of heating systems, from older gas furnaces found in Alexandria’s historic neighborhoods to modern high-efficiency heat pumps in newer developments.
We Repair All Heater Types
Furnace and Boiler Repairs:
No Heat Production: When your furnace or boiler fails to produce heat, it can leave your home dangerously cold. This often indicates issues with the thermostat, ignition system, or fuel supply.
Strange Noises: Loud banging, hissing, or squealing sounds from your heating system can indicate mechanical problems like loose components, failing motors, or pressure issues in boilers.
Pilot Light or Ignition Problems: If the pilot light won’t stay lit or the electronic ignition fails, your heating system can’t start properly, necessitating immediate repair.
Cycling Issues: Frequent cycling on and off can indicate problems with the thermostat, overheating, or airflow restrictions, which can lead to system failure if not addressed.
Leaking Water (Boilers): Water leaks around your boiler can indicate serious issues with the pressure valve, pump, or corrosion in the tank, requiring urgent repair.
Heat Pump Repairs:
Not Heating: If your heat pump isn’t providing heat, it could be due to refrigerant issues, compressor problems, or thermostat malfunctions.
Ice Build-Up: Excessive ice formation on the heat pump can impede its operation, often caused by refrigerant leaks or defrost cycle failures.
Strange Noises: Unusual noises from the heat pump, such as grinding or rattling, can indicate mechanical issues that need immediate attention.
Constant Running: If the heat pump runs continuously without reaching the desired temperature, it may have a thermostat issue or a failing component.
General Heating System Issues:
Unusual Smells: Foul or burning smells coming from the heating system can signal gas leaks, electrical issues, or other dangerous problems.
High Energy Bills: A sudden increase in energy bills can indicate that your heating system is working harder due to an underlying issue, necessitating a professional inspection.
Get fast heater repairs from local technicians.
Call (571) 360-4520 now!
If you encounter any of these issues, it’s crucial to contact HVAC & Plumbing Unlimited for immediate assistance. Our expert technicians are available 24/7 to handle all emergency heating repairs in Alexandria, VA, ensuring your home remains warm and safe.
Signs of an HVAC Emergency
Heating System Issues:
- No Heat: If your heating system fails to produce heat, especially during cold weather, it’s a clear emergency. This can leave your home dangerously cold and uncomfortable. Immediate attention is needed to avoid potential health risks. An emergency service can restore warmth and safety to your home.
- Strange Noises: Loud banging, grinding, or squealing noises from your heater indicate serious mechanical issues. These noises can signal anything from loose parts to motor failure, requiring immediate attention. Ignoring these sounds can lead to more significant damage and costly repairs. It’s essential to shut off your system and call for emergency service to prevent further harm.
Cooling System Issues:
- AC Not Cooling: If your air conditioner is running but not cooling your home, especially during a heatwave, it’s an urgent problem. This can be due to refrigerant leaks, compressor issues, or blocked airflow. In Alexandria’s hot summers, this can lead to unbearable indoor temperatures. Overworked systems can also spike energy bills and risk total breakdown. Immediate professional repair can restore comfort and efficiency, preventing further damage.
- Ice on Unit: Ice forming on your AC unit suggests a refrigerant leak or airflow problem. This can lead to system breakdowns and reduced cooling efficiency. Addressing this quickly can prevent more severe issues. Professional inspection and repair are necessary to ensure optimal performance and longevity of your AC system.
Ductwork Issues:
- Weak Airflow: Significantly reduced airflow from vents can indicate blocked or damaged ducts. This not only affects comfort but can also increase energy bills due to the system working harder. Prompt inspection and repair are essential to restore proper airflow and efficiency. Neglecting this issue can lead to further complications and higher costs.
- Unusual Odors: Foul or burning smells coming from ducts can signal mold, pests, or electrical problems. These issues can pose health risks and require immediate inspection and remediation. Ensuring clean and safe air ducts is crucial for maintaining indoor air quality. Regular maintenance can prevent these problems and keep your HVAC system running smoothly.
Overall Heating & Cooling System Issues:
- Frequent Cycling: Constantly turning on and off can strain the system and lead to a breakdown. This short cycling can be caused by thermostat issues, improper system sizing, or other underlying problems. Addressing this promptly can prevent further damage and improve efficiency. Regular maintenance and proper system checks are vital.
- High Humidity: Excess humidity in your home can mean your HVAC system isn’t functioning properly. High humidity can lead to mold growth, health issues, and discomfort, necessitating prompt professional attention. Proper system calibration and maintenance can control humidity levels. Ensuring your system is in top condition helps maintain a comfortable and healthy home environment.
If you notice any of these signs, it’s crucial to contact HVAC & Plumbing Unlimited immediately at (571) 360-4520 to prevent further damage and ensure your home remains safe and comfortable. Our team is ready 24/7 to handle any HVAC emergencies in Alexandria, VA.
Frequently Asked Questions
What heating & cooling services do you provide in Alexandria?
We provide complete residential heating and AC services, including air conditioning repair and installation, furnace repair and replacement, heat pump service, ductless mini-split systems, indoor air quality solutions, and seasonal maintenance. Whether your system needs a simple repair or full replacement, we handle both routine and complex jobs.
How do I know if my heating and air conditioning system needs repair or full replacement?
Several factors determine this: system age, repair frequency, energy efficiency, and overall performance. If your system is 12–15+ years old, requires frequent service calls, or struggles to maintain consistent temperatures, replacement may be more cost-effective long term. If the issue is isolated (such as a capacitor, blower motor, or thermostat), repair is often the better option.
What are common HVAC problems in Alexandria homes?
In summer, common issues include refrigerant leaks, frozen evaporator coils, failed capacitors, and clogged condensate drains due to humidity. In winter, heat pump defrost issues, ignition failures in gas furnaces, and airflow restrictions are common. Older homes in Alexandria may also have undersized or aging ductwork that affects system performance.
Are heat pumps effective in Northern Virginia’s climate?
Yes. Heat pumps are widely used in Alexandria because they provide both heating and cooling efficiently in moderate climates. However, proper sizing and installation are critical for performance during colder winter nights. In some homes, dual-fuel systems may be recommended.
How often should HVAC maintenance be performed?
Cooling systems should be serviced in the spring before peak summer demand, and heating systems should be inspected in the fall. Routine maintenance improves efficiency, reduces breakdown risk, and helps extend equipment lifespan.
How long does a typical heating and cooling system last?
Air conditioners and heat pumps typically last 10–15 years. Gas furnaces often last 15–20 years with proper maintenance. Lifespan depends heavily on usage, installation quality, and routine service history.
What size HVAC system does my home need?
System size is determined through load calculations based on square footage, insulation levels, window placement, and duct design. Oversized or undersized systems can lead to comfort issues and higher energy costs, so professional evaluation is important.
Do you service older homes in Alexandria?
Yes. Many Alexandria properties, especially in established neighborhoods, have older ductwork, limited attic space, or aging mechanical systems. We assess the entire setup to ensure repairs or replacements are compatible with the home’s structure.
What indoor air quality options are available?
We offer air purification systems, whole-home filtration, humidity control solutions, and ventilation improvements designed to reduce allergens, improve airflow, and maintain balanced humidity levels.
Do you offer financing for new HVAC systems?
Yes. Financing options are available for qualifying installations to help spread out the cost of major system upgrades.