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10 Best HVAC Companies in Frederick, MD

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Written By Bradford Cuthrell

Last Updated February 2024

If you're like the typical American homeowner, more than half of your energy bill (55%, according to the Department of Energy) goes toward heating and cooling your home. With so much money spent on cooling and heating your Frederick home, you want to know that you're getting the best return on your investment.

Our guide to Frederick's top HVAC companies can help you save money by getting your HVAC system repaired, installed or replaced by the right person for the right price.

Top 10 Best HVAC Companies in Frederick

May's Heating & Air Conditioning

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8420 Gas House Pike DD, Frederick, MD 21701 (301) 690-0397 maysheatingandac.com

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Maintenance
Ductless
Furnace repair
Furnace installation
Zoning systems
Ac installation
Ventilation
Emergency services
Indoor air quality
Filtration
Ac repair

Markool Heating & Cooling

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5304C Kings Ct, Frederick, MD 21703 (301) 969-9963 markoolhvac.com

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Reliable customer support

Free quote

Clear pricing policy

Services Offered

Boiler installation
Zoning systems
Ac installation
Maintenance
Indoor air quality
Duct cleaning
Emergency services
Radiant heating
Furnace installation
Ac repair
Ductless
Filtration

Dave's Cooling & Heating

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9022 Walnut St, Union Bridge, MD 21791 (301) 401-2780 ravefordaves.com

Reliable customer support

Informative resources

Prompt service delivery

Clear pricing policy

Services Offered

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

Eric Smock Heating & Air Conditioning, Inc.

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1539 Tilco Dr Unit 104, Frederick, MD 21704 (301) 945-7220 ericsmockhvac.com

Prompt service delivery

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Emergency services
Ac installation
Maintenance
Ac repair
Ductless
Furnace installation
Indoor air quality
Furnace repair

Wyant Heating and Air. Inc.

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1573 Tilco Dr Suite 6, Frederick, MD 21704 (301) 620-1770 wyantheatingandair.com

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Boiler installation
Ac installation
Filtration
Maintenance
Furnace installation
Ventilation
Radiant heating
Indoor air quality
Zoning systems
Ductless

Frederick Air Inc

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3 King Ave, Frederick, MD 21701 (301) 663-0300 frederickair.com

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Free quote

Informative resources

Clear pricing policy

Services Offered

Maintenance
Ac installation
Emergency services
Indoor air quality
Ductless
Furnace installation
Ac repair

Weather Masters Corporation

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4509 Metropolitan Ct Unit D, Frederick, MD 21704 (240) 215-3339 weathermasterscorp.com

Clear pricing policy

Informative resources

Free quote

Reliable customer support

Services Offered

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

Ferguson HVAC Supply

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7311 Grove Rd Ste T, Frederick, MD 21704 (301) 378-7337 ferguson.com

Reliable customer support

Clear pricing policy

Services Offered

Ductless
Ac repair
Furnace installation
Indoor air quality
Maintenance
Smart home integration
Ventilation
Filtration

Brick Street Plumbing & HVAC

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47 E All Saints St, Frederick, MD 21701 (301) 969-4911 brickstreetplumbinghvac.com

Clear pricing policy

Reliable customer support

Free quote

Prompt service delivery

Services Offered

Ac installation
Emergency services
Furnace installation
Inspection
Ventilation
Ac repair
Maintenance

Exxel Mechanical Services

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7943 Dollyhyde Rd, Mt Airy, MD 21771 (443) 821-1040 exxelmechanical.com

Prompt service delivery

Free quote

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Furnace installation
Ac repair
Maintenance
Inspection
Filtration
Ac installation
Radiant heating
Indoor air quality
Boiler installation
Emergency services
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 home's HVAC system isn't working correctly or getting old, you might need an HVAC contractor for maintenance or replacement. Look for these common indicators that your system needs expert attention:

  • Poor air circulation or uneven heating/cooling
  • Refrigerant leaks
  • Higher than normal energy bills
  • Cracking, rust, or corrosion
  • Frequent breakdowns and need for repairs
  • Strange noises when the system turns on
  • Thermostat malfunctions or temperature control issues
  • An HVAC system that's over 15 years old

If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can pinpoint problems and recommend whether repair or full HVAC replacement is needed.

Cost of HVAC Installation and Maintenance in Frederick

HVAC installation or maintenance prices vary depending on your system. Common HVAC unit varieties include the following:

  • Split or mini-split: If your home's ductwork can't accommodate a central HVAC system, you likely have a split or mini-split system. Split systems have internal units in each room to control temperature; these indoor units all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions in the same way as a normal split system, but has the benefit of being able to draw power from either gas or electric sources.
  • Heat pump: Heat pumps work by circulating hot and cold air between your home and the outdoors. These systems don't create heat or air conditioning themselves, and are more effective in more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are a great choice for smaller houses. They have a single cooling and heating unit, typically in an attic or basement. This unit is often compact, energy-efficient, and easy to maintain.

The amount you spend on HVAC maintenance also varies depending on what kind of work being done. HVAC systems are complicated and might require different kinds of maintenance. The cost of some common repairs is as follows:

HVAC Unit TypeCost
Split$1,912-$4,874
Hybrid Split$3,874-$7,137
Heat Pump$3,000-$30,564
Packaged Heating and Air$251-$418

Ways to Save Money on HVAC Costs

HVAC system repairs and replacements are important, but can be pricey. Luckily, there are steps homeowners can take to reduce wear and tear on their HVAC and lower future maintenance needs.

  • Monitor for potential problems. Monitor your system for issues, for example by consistently checking your thermostat and energy bills. This enables you to address problems before they get out of hand.
  • Keep your system clean. Cleaning your indoor evaporator coil, ductwork, condenser fan blades, and grills regularly helps your HVAC system work efficiently and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system once it starts to look dirty.
  • Change the position of your blinds seasonally. Leaving your blinds open during the colder months helps warm your home with passive solar heating. Closing the blinds during the summer helps prevent the heat from getting inside. Doing both helps lessen the strain on your HVAC.
  • Change filters regularly. Replacing or cleaning your air filters every 1–3 months helps air flow efficiently through your system. Also try to keep debris away from the outdoor portions of your HVAC system as much as possible.
ServiceCost
Filter Replacement$63-$167
Condensor Cleaning$1,255-$3,765
Thermostat Repair$84-$209
Ductwork Cleaning$402-$1,004

How To Choose a Local HVAC Company

Finding the right HVAC company is crucial for an easy 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

Get quotes from at least three HVAC contractors. Describe your issues and ask if technicians can inspect your system in person. Compare each company's diagnoses, recommended solutions, estimated cost, warranties, and timelines. Avoid contractors that pressure you or demand payment before work.

Check Credentials

Look for an HVAC company that employs skilled technicians with the necessary licensure and training. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.

HVAC contractors in Maryland are licensed by the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors. To obtain a master or master restricted license, a contractor needs to have at least three years of experience and must hold both property damage and general liability insurance. You should also check reviews and complaints on sites like the Better Business Bureau (BBB), Google Reviews, and Yelp. Choose a company with positive reviews and testimonials about good customer experiences.

Understand Work Details

It’s important to know what the work process is going to look like. For HVAC repairs, the company should explain the specific parts that need replacement and why. Confirm that your technician will clean and test the full system afterward to make sure everything is operating properly. When replacing your HVAC, have the provider describe the new estimated installation time, brand, features, model, and energy efficiency. Before work starts, ask about the process your provider will use to properly size the new system for your home and how much it will cost.

Compare Warranties

Reliable HVAC companies provide warranties for their work. Broader coverage is better, so make sure to compare warranties between companies. Choose the one that offers the best coverage at a fair cost.

Get Quote in Writing

Always get HVAC bids in writing before work begins. A detailed quote will cover costs for both materials and labor. Ensure that you understand all terms before signing the contract.

Frequently Asked Questions About HVAC in Frederick, MD

You should have your HVAC system inspected approximately twice a year. At the time of the inspection, your technician will inform you what services are needed. You should also schedule an inspection if you start noticing issues such as strange noises, leaks, or unusual smells. If your system has ductwork, you should have it inspected every few years.

Normally, it's a good idea to have your HVAC system inspected in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it probably sees the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain the temperature of your home. Always 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 could also consider installing a smart thermostat.

Generally, HVAC installation or replacement takes one to three days for the entire system. Installing or replacing a furnace or air conditioning unit may take anywhere from a few hours up to two days. The exact amount of time will be based on factors like the size of your house, how easily accessible different areas are, and whether your technician finds any problems.

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

For a 2,000-square-foot home, you'll also want to look for an air conditioning unit with between 2.5 and 5 tons of capacity. In general, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.

Your HVAC company may provide financing options via a third-party lender, or you might choose to obtain your own loan. It's smart to discuss payment options with a financial advisor and your HVAC company to make sure that you find the best option for you.

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

  • Make sure your air ducts remain clean, and change or clean your air filters regularly.
  • Schedule 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 aren't able to purchase one, try keeping your inside temperature as close to the outside temperature as you can.
  • When replacing part of your HVAC system, explore Energy Star-certified or similar environmentally friendly options.

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