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10 Best HVAC Companies in Germantown, MD

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Written By Bradford Cuthrell

Last Updated February 2024

On average, American homeowners devote 55% of their home energy usage to heating and cooling, according to the Department of Energy. It's important that the cooling and heating systems in your Germantown home are functioning properly, so you can avoid spending more than you need to.

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

Top 10 Best HVAC Companies in Germantown

GAC Services

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

Prompt service delivery

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

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

Parker Pearce Service Experts

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7901 Beechcraft Ave Suite C, Gaithersburg, MD 20879 (301) 548-9000 parkerpearce.com

Reliable customer support

Free quote

Clear pricing policy

Informative resources

Services Offered

Furnace installation
Ductless
Geothermal heating
Ac installation
Maintenance
Indoor air quality
Smart home integration
Ac repair
Furnace repair
Duct cleaning

Presidential Heating & Air Conditioning, Inc.

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8000 Cessna Ave, Gaithersburg, MD 20879 (301) 670-0851 presidentialheatandair.com

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Clear pricing policy

Reliable customer support

Free quote

Services Offered

Inspection
Furnace repair
Maintenance
Ac installation
Ventilation
Indoor air quality
Furnace installation
Ac repair

ADI Heating & Air Conditioning, LLC

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21529 Ripplemead Dr, Gaithersburg, MD 20882 (301) 774-4200 adiheatingandair.com

Free quote

Prompt service delivery

Informative resources

Reliable customer support

Clear pricing policy

Services Offered

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

Sears Heating and Air Conditioning

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701 Russell Ave, Gaithersburg, MD 20877 (301) 259-3039 searshomeservices.com

Reliable customer support

Informative resources

Clear pricing policy

Free quote

Services Offered

Ductless
Ac repair
Indoor air quality
Filtration
Ac installation
Inspection
Maintenance
Ventilation

Mannix Heating & Cooling

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7824 Beechcraft Ave, Gaithersburg, MD 20879 (301) 260-6000 mannixhvac.com

Clear pricing policy

Informative resources

Prompt service delivery

Reliable customer support

Services Offered

Indoor air quality
Ductless
Maintenance
Furnace repair
Ac repair
Ac installation
Duct cleaning

All American A/C & Heating, Inc

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19515 White Ground Rd, Boyds, MD 20841 (301) 972-9076 allamericanacandheating.com

Free quote

Reliable customer support

Prompt service delivery

Informative resources

Clear pricing policy

Services Offered

Ac installation
Indoor air quality
Filtration
Maintenance
Ductless
Inspection

Simply Home Service

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9326 Taverney Terrace, Gaithersburg, MD 20879 (301) 518-9977 simplyhomeservices.com

Clear pricing policy

Informative resources

Free quote

Services Offered

Ac repair
Furnace installation
Furnace repair
Emergency services
Maintenance
Ac installation

Davis Ford Heating & Air Conditioning

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110 N Washington St Suite 410, Rockville, MD 20850 (833) 455-5127 davis-ford.com

Clear pricing policy

Reliable customer support

Free quote

Informative resources

Services Offered

Maintenance
Duct cleaning
Filtration
Ductless

Rod Miller Heating and Air Conditioning Company

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211 Perry Pkwy #9, Gaithersburg, MD 20877 (301) 587-1517 rodmillerhvac.com

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Clear pricing policy

Reliable customer support

Free quote

Services Offered

Maintenance
Inspection
Ac installation
Ventilation
Ac repair
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

A malfunctioning or aging HVAC system probably needs attention from a professional who can make fixes or install a new unit. Watch out for these common signs that your HVAC needs service:

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

If you're experiencing any of these HVAC issues, have a technician inspect your system. A local professional can identify problems and decide whether repairing or getting a new HVAC unit is the best solution.

Cost of HVAC Installation and Maintenance in Germantown

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

  • Split or mini-split: If your home lacks the right ductwork for central air or heating, you likely have a split HVAC system. Split or mini-split systems consist of interior units that control the temperature in individual rooms. These interior units are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system performs similarly to a standard split system, but is able to utilize either gas or electricity for power.
  • Heat pump: Heat pumps circulate warm and cold air between your home and outside. They don't make their own heat or AC, so they work best in moderate climates.
  • Packaged heating and air: Packaged HVAC systems work well in smaller homes. They consist of a single combined air conditioner and heating unit, usually located in a basement or attic. This unit is typically small, cost-effective, and easy to maintain.

The price of HVAC maintenance also varies depending on what kind of work being done. HVAC systems are complicated and might require different kinds of maintenance. The prices of some common jobs are as follows:

HVAC Unit Type Cost
Split $1,976-$5,038
Hybrid Split $4,004-$7,378
Heat Pump $3,101-$31,594
Packaged Heating and Air $259-$432

Ways to Save Money on HVAC Costs

It's important to fix or swap out your HVAC components when they become damaged, but it can also be expensive. Luckily, there are some steps you can take to reduce wear and tear on your HVAC.

  • Change filters regularly. Changing or cleaning your air filters every 1–3 months helps air flow efficiently through your HVAC system. We also recommend regularly clearing dirt and debris away from the external parts of your system.
  • Change the position of your blinds seasonally. Closing your blinds in the summer blocks some passive solar heat from getting indoors. Opening the blinds in the winter allows this same heat to help warm your home. Both of these measures help decrease the work required from your home’s HVAC system.
  • Keep your system clean. Regularly cleaning grills, indoor evaporator coil, ductwork, and condenser fan blades helps your HVAC system run efficiently and reduces the risk of mold. The National Air Duct Cleaners Association recommends cleaning your heating and cooling system when it starts to look dirty.
  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills regularly — helps you get ahead of problems before they get too expensive.

Service Cost
Filter Replacement $65-$173
Condensor Cleaning $1,297-$3,892
Thermostat Repair $86-$216
Ductwork Cleaning $415-$1,038

How To Choose a Local HVAC Company

Knowing what makes a trustworthy HVAC company is vital for an easy installation or repair. Hiring an experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.

Compare Multiple Bids

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

Check Credentials

It's important to choose an HVAC company that employs technicians with the appropriate qualifications and expertise. HVAC contractors in all states have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the type of exam depends on the 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 at the state level.

In Maryland, HVAC contractors are licensed by the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors. To obtain a master or master restricted license, a contractor is required to have at least three years of experience and must hold both property damage and general liability insurance. You should also check a provider's reviews and complaints with organizations such as Google Reviews, Yelp, and the Better Business Bureau (BBB). You'll want to select a company with positive reviews and a history of good customer service.

Understand Work Details

Always make sure you know the details of your project. When HVAC repairs are required, your provider should detail which parts need replacement and why. Confirm that your technician will clean and test your system after repairs are done to verify that it’s working properly. When replacing your HVAC system, have the provider describe the new brand, model, energy efficiency, features, and estimated installation time. Before signing a contract, 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

Good HVAC companies offer warranties on repairs and installations. The more complete the coverage, the better. Review warranty details between companies and pick the one that provides the most comprehensive protection within your budget.

Get Quote in Writing

Get written estimates before beginning HVAC work. The quote should cover costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Germantown, MD

You should have your HVAC system inspected twice yearly. Following an inspection, your technician will inform you if any services are needed. You should also call a technician if you start noticing issues such as leaks, unusual smells, or strange noises. If your system has ductwork, you should have it inspected every few years.

Usually, you should schedule inspections 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 reducing the amount of work it takes for your HVAC system to maintain your home's temperature. Always keep your thermostat as close to the outside temperature as you can, and avoid making drastic changes — adjust it only a few degrees at once. You could also consider getting a smart thermostat.

Generally, whole-system HVAC installation or replacement takes one to three days. Installing or replacing an air conditioning unit or a furnace takes anywhere from about half a day up to two days. The exact amount of time will depend on things like the size of your house, how easily accessible different parts of the system are, and whether your technician runs into 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 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.

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

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

  • Keep ductwork clean, and clean or change your air filters on a regular basis.
  • 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 it comes time to replace any part of your system, see if there are Energy Star-certified or similar environmentally friendly options.

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