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10 Best HVAC
in Herndon, VA

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If you're like the typical American homeowner, more than half of your energy bill (55%, per the U.S. Department of Energy) goes toward heating and cooling your home. In Herndon, you're probably looking to reduce your energy expenses and save money.

We've put together this guide to the top HVAC companies in Herndon to help you choose the right person for your job and get your system into its best shape ever.

Top 10 Best HVAC Companies in Herndon

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Breeze Master Inc - Heating and Air Conditioning Company

Breeze Master Inc - Heating and Air Conditioning Company Logo

Our Rating

User Rating

4800 Braddock Knoll Way, Fairfax, VA 22030 (703) 996-9879 breezemasterinc.com

Informative resources

Reliable customer support

Free quotes

Clear pricing policy

Prompt service delivery

Services Offered

Boiler installation
Furnace repair
Emergency services
Ductless
Boiler repair
Duct cleaning
Furnace installation
Ac installation
Filtration
Ac repair
Inspection
Maintenance
Indoor air quality
Ventilation

United Air Temp

United Air Temp Logo

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User Rating

45570 Shepard Dr Ste. #6, Sterling, VA 20164 (571) 888-8078 unitedairtemp.com

Reliable customer support

Clear pricing policy

Free quotes

Prompt service delivery

Informative resources

Services Offered

Emergency services
Ac installation
Furnace installation
Filtration
Furnace repair
Maintenance
Ductless
Indoor air quality
Inspection
Boiler installation
Ac repair
Duct cleaning

Service Cart

Service Cart Logo

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User Rating

7255 Gabe Ct, Manassas, VA 20109 (703) 705-2525 theservicecart.com

Free quotes

Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Inspection
Indoor air quality
Maintenance
Boiler repair
Emergency services
Zoning systems
Ac installation
Ac repair
Boiler installation
Furnace repair
Ventilation
Ductless
Furnace installation
Duct cleaning

McCrea Heating & Air Conditioning

McCrea Heating & Air Conditioning Logo

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User Rating

5083 Lee Hwy, Warrenton, VA 20187 (540) 317-1939 mccreaway.com

Prompt service delivery

Reliable customer support

Clear pricing policy

Free quote

Informative resources

Services Offered

Maintenance
Inspection
Indoor air quality
Ac repair
Ductless
Boiler installation
Ac installation
Furnace installation
Furnace repair
Emergency services
Filtration

Snell Home Services

Snell Home Services Logo

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User Rating

21660 Ridgetop Cir #138, Sterling, VA 20166 (571) 470-7206 snellheatingandair.com

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Prompt service delivery

Services Offered

Furnace repair
Emergency services
Ac repair
Ductless
Furnace installation
Indoor air quality
Boiler repair
Inspection
Maintenance
Boiler installation
Ac installation
Zoning systems

GAC Services

GAC Services Logo

Our Rating

User Rating

227 E Deer Park Dr, Gaithersburg, MD 20877 (866) 955-7192 gacservices.com

Prompt service delivery

Informative resources

Reliable customer support

Clear pricing policy

Services Offered

Maintenance
Filtration
Indoor air quality
Emergency services
Furnace installation
Inspection
Smart home integration
Duct cleaning
Ac repair
Ac installation
Ductless

Riley Heat And Air

Riley Heat And Air Logo

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User Rating

14504 Banquo Terrace, Silver Spring, MD 20906 (301) 880-0666 rileyheatandair.com

Clear pricing policy

Free quotes

Reliable customer support

Informative resources

Services Offered

Boiler repair
Maintenance
Ac installation
Duct cleaning
Filtration
Boiler installation
Ac repair
Ventilation
Emergency services
Inspection
Furnace repair
Indoor air quality
Furnace installation

Nice Heating & Air

Nice Heating & Air Logo

Our Rating

User Rating

8560 Cinder Bed Rd Suite 1500, Lorton, VA 22079 (703) 783-4944 nicehomeservices.com

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Maintenance
Furnace repair
Filtration
Ventilation
Furnace installation
Boiler installation
Indoor air quality
Ac repair
Ductless
Ac installation

M.E. Flow

M.E. Flow Logo

Our Rating

User Rating

8580 Cinder Bed Rd #200, Lorton, VA 22079 (571) 350-3183 meflow.com

Informative resources

Free quotes

Clear pricing policy

Services Offered

Inspection
Indoor air quality
Ac installation
Filtration
Ac repair
Ductless
Maintenance
Emergency services
Boiler repair
Furnace installation
Smart home integration
Boiler installation

One Hour Heating & Air Conditioning® of Northern Virginia

One Hour Heating & Air Conditioning® of Northern Virginia Logo

Our Rating

User Rating

21730 Red Rum Dr Suite 182, Ashburn, VA 20147 (571) 380-7548 onehourheatandair.com

Informative resources

Prompt service delivery

Free quotes

Clear pricing policy

Services Offered

Filtration
Duct cleaning
Indoor air quality
Ductless
Ac repair
Emergency services
Furnace repair
Maintenance
Furnace installation
Ventilation
Ac installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

If your HVAC system is faulty or getting old, it likely needs servicing or replacement from an HVAC company. Look for these signs your system needs service:

  • Refrigerant leaks
  • Thermostat malfunctions or temperature control issues
  • Uneven heating/cooling or poor air circulation
  • Unusually high energy bills
  • Frequent breakdowns and need for repairs
  • Strange noises when turning on
  • Corrosion, cracking, or rust
  • An HVAC system that's over 15 years old

Book an inspection if you notice any of these issues. A local technician can evaluate your system, identify problems, and figure out whether you need to fix or replace your HVAC.

Cost of HVAC Installation and Maintenance in Herndon

What you spend on HVAC installation or maintenance depends on your system type. Common HVAC unit styles include the following:

  • Split or mini-split: If your home lacks the ductwork for central air or heating, you likely have a split or mini-split system instead. Split HVAC systems have indoor units in each room to regulate temperature. These connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions much like a standard split system, but is able to utilize either electricity or gas as energy sources.
  • Heat pump: Heat pumps work by transferring hot and cold air between your home and the outdoors. These systems don't generate heat or air conditioning themselves, and are more suited to more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are a good choice for smaller homes. These systems have a single heating and cooling unit, typically located in an attic or basement. They're small, cost-effective, and easy to maintain.

HVAC maintenance costs differ based on the specific services needed. HVAC systems can be complex and potentially require a number of services. Costs for typical jobs are as follows:

HVAC Unit TypeCost
Split$1,948-$4,966
Hybrid Split$3,947-$7,272
Heat Pump$3,056-$31,141
Packaged Heating and Air$256-$426

Ways to Save Money on HVAC Costs

It’s important to take care of HVAC repairs and replacements when they are required, though they can be expensive. The good news is that homeowners have methods to decrease the effect of wear and tear and reduce the frequency of breakdowns.

  • Change the position of your blinds seasonally. During winter, leave your blinds open so your home benefits from passive solar heat. In summer, keep blinds shut to block out heat. Doing both lowers the amount of work your HVAC system must perform.
  • Keep your system clean. Keeping your condenser fan blades, indoor evaporator coil, grills, and ductwork clean helps your HVAC system function properly and lowers your risk of mold. The National Air Duct Cleaners Association suggests cleaning your home's HVAC system when you notice things starting to get dirty.
  • Change filters regularly. Switching out your air filters or washing them every 1–3 months allows smooth air circulation through your system. Also try to keep debris from accumulating on the external parts of your HVAC.
  • Monitor for potential problems. Keeping a close eye on the efficiency of your HVAC system — for instance by checking your thermostat settings and energy bills — helps you find and solve issues before they get out of hand.
ServiceCost
Filter Replacement$64-$170
Condensor Cleaning$1,279-$3,836
Thermostat Repair$85-$213
Ductwork Cleaning$409-$1,023

How To Choose a Local HVAC Company

Knowing what makes a trustworthy HVAC company is key for a successful installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.

Compare Multiple Bids

Contact at least three HVAC companies for quotes. Explain the issues and have technicians visit to inspect your system if possible. Compare the companies' explanations, solutions, estimated costs, timeframes, and warranties. Avoid companies that pressure you or demand payment upfront.

Check Credentials

It's important to choose an HVAC company that employs technicians with the appropriate qualifications and expertise. In all states, HVAC contractors have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, an individual must pass an exam (the specific exam depends on what kind of equipment they intend to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled by the state.

In Virginia, HVAC contractors need to have a contractor license with an HVAC specialization from the Department of Professional and Occupational Regulation. A valid Master HVAC Tradesman License (which has both experience and education requirements) is necessary to apply. A license can be class A, B, or C.

  • Class A: Contractor has at least five years of experience and can work on projects valued over $120,000
  • Class B: Contractor has at least three years of experience and can work on projects valued between $10,000 and $120,000
  • Class C: Contractor has at least two years of experience and can work on projects valued under $10,000
Always check a provider's reviews and complaints with organizations such as Yelp, the Better Business Bureau (BBB), and Google Reviews. You'll want to select a company with glowing reviews and stories of positive service experiences.

Understand Work Details

Make sure you know the details of any project before it begins. For HVAC repairs, have your provider specify which parts need replacement and why. Get confirmation that your technician will clean and test the system after the repair to ensure that everything works. When replacing your HVAC, request that the company explain the new model, estimated installation time, brand, energy efficiency, and features. Before signing a contract, make sure you understand how your provider will determine the right system size for your home and what the price will be.

Compare Warranties

Reliable HVAC companies offer warranties on repairs and equipment installations. The more complete the coverage, the better. Review warranty details between companies and pick the one that offers the most comprehensive protection for the fairest price.

Get Quote in Writing

Always get HVAC bids in writing before work begins. A thorough quote covers costs for both labor and materials. Make sure that you understand all terms before signing the contract.

Frequently Asked Questions About HVAC in Herndon, VA

Typically, you should have your HVAC system inspected twice a year. After that inspection, your HVAC technician will tell you what services are needed. You should also have an inspection if you start to notice any issues, such as unusual smells, strange noises, or leaks. If your home has ductwork, it should be serviced every few years.

The best times of the year to have your HVAC system inspected are the spring and fall. Technicians are generally less busy during these times, making it easier to get an appointment. This also ensures that your system is ready for the summer and winter, which is when it normally gets the most use.

You can save energy throughout the year by reducing the amount of power your HVAC system uses to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as possible, and avoid making drastic changes — adjust it only a few degrees at once. You may also consider purchasing a smart thermostat.

It takes roughly one to three days to have an HVAC system installed or replaced. If you only need an air conditioning unit or a furnace, this can take between half a day and two days. This timeline will be influenced by the size of your home, how easily accessible your system is, and any new issues your technician uncovers.

For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. If your home is larger than 1,000 square feet, central air will be more effective for cooling than window units.

For a 2,000-square-foot home, you'll also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).

Usually, HVAC financing is provided by a third-party lender. If your HVAC company doesn't have financing options, you may consider taking out your own loan. Be sure to talk to your HVAC company and a financial advisor to determine what options are available and appropriate for your situation.

There are several ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and clean or change your air filters regularly.
  • Have regular inspections to take care of issues as they arise.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep your inside temperature as close to the outside temperature as is comfortable.
  • When replacing part of your HVAC system, see if there are Energy Star-certified or other environmentally friendly options.

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