Compare the highest-rated hvac professionals in Herndon, Virginia. All contractors are licensed, insured, and verified through our rigorous screening process.
A family-owned and operated HVAC specialist serving Herndon and Northern Virginia for over 30 years. They provide comprehensive heating and cooling services, including high-efficiency system installations, 24/7 emergency repairs, and premium maintenance plans. Known for their expertise with top brands like Trane and Carrier and a strong focus on energy-efficient solutions for the local climate.
A leading local provider with a massive fleet of technicians, ensuring rapid response for installations, repairs, and emergencies. They handle all aspects of residential HVAC, from complex ductwork design and zoning to smart thermostat integration and furnace replacements. Their large team is fully licensed and EPA-certified to handle any refrigerant-related issues.
A highly reputable, award-winning contractor known for its technical expertise and customer service. They specialize in installing high-performance HVAC systems from brands like Lennox and offer extensive maintenance plans to maximize system lifespan and efficiency. They are particularly adept at solving complex heating issues in older Herndon homes and providing advanced air quality solutions.
The Herndon HVAC market is highly competitive and service-oriented, driven by a humid subtropical climate with hot, humid summers and cold winters. This demands robust, reliable, and efficient systems for both air conditioning and heating. Homeowners prioritize energy efficiency due to seasonal extremes, leading to high demand for modern, high-SEER AC units and high-AFUE furnaces. The prevalence of homes from the 80s and 90s also creates a steady need for system replacements, ductwork modifications, and emergency repair services, especially during summer heatwaves and winter cold snaps.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Herndon regulations and climate
Get answers to common questions about hvac services in Herndon, Virginia.
For a standard efficiency, single-stage system, homeowners in Herndon can expect to pay between $5,000 and $9,000 for a full replacement, including installation. Higher-efficiency models (like 16+ SEER AC or 95%+ AFUE furnaces) can range from $9,000 to $15,000+. These costs reflect Northern Virginia's competitive market and include factors like the complexity of your home's layout and necessary ductwork modifications. Always get multiple itemized estimates.
The ideal times are during the mild shoulder seasons—early spring (March-April) before the hot, humid summer and early fall (September-October) before winter. Herndon experiences high humidity and temperatures in the 90s in summer and can dip into the 20s in winter. Scheduling service during these off-peak periods ensures greater technician availability, often better pricing, and prevents a breakdown during a heatwave or cold snap.
Yes. Herndon and Fairfax County follow the Virginia Uniform Statewide Building Code (USBC) which includes specific mechanical codes for HVAC installations. More importantly, homeowners should check for rebates from Dominion Energy for installing high-efficiency heat pumps, air conditioners, or furnaces. Additionally, the federal tax credits for energy-efficient home improvements can provide significant savings on qualifying equipment installed in Virginia.
Look for a licensed, insured, and locally established contractor. Verify they hold a Virginia Class A, B, or C contractor's license. Check for positive reviews on local platforms like Nextdoor and ensure they perform a detailed Manual J load calculation (crucial for our variable climate) to correctly size your new system. Reputable Herndon companies will be transparent, offer written warranties, and may have long-standing relationships with local builders.
It can be normal during sustained cold spells. Heat pumps are the primary heating source for many Herndon homes and are designed to run longer cycles than a furnace, especially in mild cold (30-40°F). However, if it's running non-stop without adequately heating your home when temperatures are above freezing, it may indicate low refrigerant, a failing component, or an undersized system. Have a professional perform a diagnostic, as our winter humidity can also cause icing on the coils.