Fast, Reliable Heat Pump Repair — Year-Round Comfort, Restored
When your heat pump struggles, cycles incorrectly, or stops heating or cooling altogether, Dave’s Heating & Air is ready to help with prompt, precise repairs that get your home comfortable again.
When Your Heat Pump Goes Down, You Feel It Fast
Heat pumps carry more responsibility than standard HVAC systems they’re your heater and your air conditioner. That means when something goes wrong, it affects comfort in every season.
Whether your heat pump is blowing cold air in winter, failing to cool in summer, freezing over, or running nonstop, you need more than a quick reset. You need a technician who understands how these systems operate in both modes in our Northern Virginia climate and how to pinpoint the root problem not just the symptom.
That’s exactly what we do at Dave’s.
Our Repair Approach: Fix the Cause, Not Just the Component
Before we ever reach for a replacement part, we take the time to understand why your heat pump isn’t performing correctly. Heat pumps are complex systems with electrical, refrigerant, airflow, and control components that all interact and a surface-level fix can miss the real issue.
Here’s how a typical repair visit in Reston goes:
Full System Diagnostic — including pressures, electrical checks, reversing valve performance, airflow, and thermostat communication
Clear Explanation — we review the findings with you in plain English
Upfront Pricing — no surprises, no guesswork
Lasting Repair Work — completed cleanly and safely
Performance Verification — ensuring your heat pump heats, cools, and defrosts exactly as it should
This approach prevents repeat breakdowns and helps extend your system’s lifespan.
Specialized Repairs for All Heat Pump Types
Different systems require different knowledge. Our technicians are trained to repair:
High-efficiency inverter/variable-speed systems
Ducted and ductless heat pump setups
Dual-fuel systems (heat pump + gas backup)
No matter the brand or model — Carrier, Trane, Lennox, Goodman, Mitsubishi, Rheem, Bryant — we’ve got you covered.
When Repair Isn’t the Best Option
We never push replacements, but we’re honest when a repair isn’t cost-effective.
We may recommend replacement when:
The system is older and facing multiple component failures
The compressor is failing or out of warranty
A repair would exceed the long-term value of the system
The unit is oversized, undersized, or inefficient for your home
If replacement makes more sense, we’ll walk you through your options clearly — without pressure.
Need Heat Pump Repair Today?
Weak heat, ice buildup, or a system that won’t turn on can’t wait. Dave’s Heating & Air has diagnosed and repaired heat pumps across Northern Virginia for nearly 50 years, with upfront pricing and no pressure to replace what can be fixed.
area we serve
Aldie
Annandale
Ashburn
Berryville
Brambleton
Burke
Centreville
Chantilly
Fairfax
Fairfax Station
Falls Church
Great Falls
Hamilton
Herndon
Leesburg
Lovettsville
McLean
Merrifield
Potomac Falls
Purcellville
Reston
Round Hill
Sterling
Tysons
Vienna
Why Homeowners Choose Dave’s
Experience You Can Feel
We’ve served Northern Virginia homes for 50 years.
Fair, Upfront Pricing
No upsells, no hidden fees — just straight answers.
Local & Reliable
Based right here in Sterling, ready when you need us.
Respectful Service
We treat every home like it’s our own.
Not everyone is comfortable with HVAC terminology — and that’s okay. At Dave’s, every tune-up includes a quick explanation of what we inspected, what looked great, and what might need attention down the road. Our goal is to make the health of your system easy to understand, without overwhelming you with jargon.
If something needs repair, we show you why. If everything looks good, we tell you that too.
Keep Your Heat Pump Running Smoothly
Dedicated to Your Comfort Since 1975
Heat pumps do double duty in Northern Virginia—keeping your home warm in the winter and cool in the summer. When one system handles comfort year-round, it needs the right care and the right team behind it. That’s where Dave’s Heating & Air comes in.
We provide comprehensive heat pump services for both residential and light commercial properties, including precise diagnostics, reliable repairs, seasonal tune-ups, and full system replacements when it’s time for an upgrade. Our technicians are trained specifically in heat pump technology, from standard units to high-efficiency inverter and variable-speed models, so your system can perform at its best in every season.
With nearly five decades of experience serving Reston, Herndon, Sterling, and surrounding Northern Virginia communities, we’ve built our reputation on transparent service, honest recommendations, and lasting workmanship. When your heat pump needs attention, trust Dave’s to keep your home comfortable—no matter the weather.
Call 571.346.3940 and let’s keep your heat pump humming!
Hear It from Our Happy Customers
Nothing makes us prouder than hearing directly from the wonderful people we serve right here in Sterling, Herndon, Reston and Northern Virginia. Our reputation is built on knowledgeable technicians, courteous service, and the promise that we always leave your home as clean as we found it—if not cleaner!
Customers regularly praise our team for arriving on time, delivering expert system installations and repairs, and ensuring the whole process is seamless from start to finish. Whether it’s a complete HVAC replacement or routine maintenance, folks appreciate the extra care and attention to detail we bring. Many even say they’d recommend us to friends and neighbors without hesitation. Now that’s high praise!
Dave's air FAQ
How do I know if my heat pump needs repair?
Weak heat, blowing cold air, freezing up, running constantly, making loud noises, or failing to turn on are all signs your heat pump needs attention. These issues tend to worsen quickly, so it’s best to have them diagnosed before they lead to a full breakdown.
Why is my heat pump blowing cold air?
This can happen for several reasons, from reversing valve issues to refrigerant problems. Rather than guessing, our technicians run a full system diagnostic, checking pressures, electrical components, reversing valve performance, and airflow, to identify the actual cause.
How much does heat pump repair cost?
Cost depends on the specific issue and the age of your system. We provide upfront pricing before any work begins, so you know what to expect with no surprises or guesswork.
What's included in a heat pump repair visit?
Every repair follows the same approach: a full system diagnostic, a clear explanation of what we found in plain English, upfront pricing, lasting repair work completed cleanly and safely, and performance verification to confirm your heat pump heats, cools, and defrosts correctly.
Do you repair all types of heat pumps?
Yes. Our heat pump technicians are trained to repair traditional split-system heat pumps, high-efficiency inverter and variable-speed systems, ducted and ductless setups, and dual-fuel systems that pair a heat pump with a gas backup.
What brands do you service?
We repair all major brands, including Carrier, Trane, Lennox, Goodman, Mitsubishi, Rheem, and Bryant.
Should I repair or replace my heat pump?
It depends on your system’s age and condition. We may recommend replacement if the system is older and facing multiple component failures, the compressor is failing or out of warranty, a repair would exceed the system’s long-term value, or the unit is oversized, undersized, or inefficient for your home. Otherwise, we’ll repair it. We never push replacement when a repair is the better option.
Do you offer emergency heat pump repair?
Yes, we understand a heat pump problem can worsen quickly, especially when it affects your only source of heating or cooling. Contact us for prompt service.
Do you serve my area?
We provide heat pump repair throughout Northern Virginia, including Sterling, Herndon, and Reston. Contact us to confirm service in your specific neighborhood.