HVAC Contractors in Capitol Heights, MD

HVAC contractors install, repair and maintain the heating, ventilation and air conditioning equipment that keeps your home comfortable. They work on furnaces, air conditioners, ductwork, thermostats and ventilation, and help size replacement systems.

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Common HVAC services include:

  • Furnace and air conditioner repair
  • Seasonal tune-ups and maintenance plans
  • Replacing furnaces, AC units and air handlers
  • Ductwork repair, sealing and installation
  • Thermostat and ventilation upgrades

Call an HVAC contractor when your system stops heating or cooling, runs constantly, makes new noises, or your energy bills jump. Heat pump installation and air duct cleaning also have their own categories.

Top Professionals near Capitol Heights, MD

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Michael Bonsby HVAC, Plumbing & Electrical
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Gaithersburg, MD HVAC Contractors

Planning, clear communication, and consistent follow-up make mechanical projects easier to manage from start to finish. For whole-home comfort, hvac in Gaithersburg, MD often starts with a walkthrough to evaluate system age, insulation, ventilation, and thermostat placement. That overview helps guide choices for repairs, replacements, or tune-ups across air conditioning and heating equipment. Homes without existing ducts or additions over garages and basements may benefit from ductless ac installation in Gaithersburg, which allows targeted temperature control for specific rooms. Technicians can also coordinate related plumbing and electrical tasks, such as condensate routing, dedicated circuits, or breaker assessments, so the installation meets current standards. If air quality is a concern, filter upgrades or air purification add-ons can be incorporated into the plan. For heating season readiness, routine checks on heat exchangers, controls, and venting provide a baseline for safety and performance. Michael Bonsby HVAC, Plumbing & Electrical offers scheduling windows that fit typical workdays and provides post-service guidance on filter changes, thermostat settings, and care tips to extend system life.

AC Repair DC AIR CONDITIONING &Heating
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Washington, DC HVAC Contractors

DC Air Conditioning & Heating is a Washington, D.C.–based HVAC and plumbing contractor located at 2015 14th St NW Unit B that provides 24/7 emergency service along with AC repair, heating installation and maintenance, refrigeration, plumbing services, indoor air quality solutions, duct cleaning, and service/maintenance plans; the company employs certified technicians, emphasizes honest, reliable service and modern technology, offers financing options and industry-leading warranties, and can be reached at (202) 985-8885.

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Amazing Plumbing, Heating & Air
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Baltimore, MD HVAC Contractors

Amazing Plumbing, Heating & Air is a Baltimore-based HVAC and plumbing company that provides residential and commercial heating, cooling, ventilation, indoor air quality, ductless split, and plumbing services from its Georgetown Road location. Amazing Plumbing, Heating & Air offers upfront pricing, financing and specials, free estimates for system installations and second opinions, a Comfort Club membership for ongoing maintenance, and emphasizes transparent communication, energy-efficient options, and prompt, reliable service throughout Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and Prince George’s counties.

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Fry Plumbing, Heating And Air Conditioning Corp.
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Washington, DC HVAC Contractors

Fry Plumbing, Heating and Air Conditioning (Fry Plumbing) is a veteran-owned and operated plumbing and HVAC contractor established in 1948 that serves Washington, D.C., Maryland, and Northern Virginia. Fry Plumbing provides residential, commercial, and industrial services including emergency plumbing, general plumbing repairs, drain and sewer cleaning, leak detection, HVAC installation and maintenance, water heater and furnace service, boiler work, air conditioning and heat pump services, and preventative maintenance. The company emphasizes licensed and insured workmanship, transparent and fair pricing with no hidden fees, punctual and professional service, and backs its work with a one-year warranty to ensure customer satisfaction.

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Heating Ventilation Air Conditioning Mechanical Service
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Washington, DC HVAC Contractors

HVAC Mechanical Service is a Washington, D.C.-based full-service HVAC contractor (operating as Heating Ventilation Air Conditioning Mechanical Service LLC) that provides residential and commercial heating, cooling, ventilation, duct cleaning, and mechanical construction services across Maryland, Washington, DC, and Northern Virginia; the company offers installation, replacement, repair, maintenance, and piping/mechanical work backed by certified, factory-trained technicians, emphasizes energy-efficiency and indoor air quality, reports more than a decade of local experience with strong customer reviews, and maintains a local office at 4471 MacArthur Blvd NW Suite 104, Washington, DC.

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Magnolia Plumbing, Heating & Cooling
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Washington, DC HVAC Contractors

Magnolia Companies (Magnolia Plumbing, Heating & Cooling) is a fourth-generation, family-owned plumbing and HVAC contractor serving the Washington, D.C. and Baltimore metropolitan areas for more than seven decades. Magnolia Companies provides residential and commercial services including plumbing, sewer and drain, heating, cooling, water heaters, indoor air quality, and commercial site utilities, and offers 24/7 emergency service across multiple local offices. The company emphasizes trade expertise, licensed and bonded workmanship, comprehensive warranties and maintenance agreements, and a commitment to customer satisfaction and community service as part of its long-standing family legacy.

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McMurrays Heating & A.C.
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Washington, DC HVAC Contractors

McMurray's Heating and AC is a Washington, D.C.–based residential HVAC contractor that has served the DC area since 2015. McMurray's Heating and AC provides repair, replacement, installation, preventive maintenance, and indoor air quality services for heating and air conditioning systems, including air duct cleaning and thermostat replacement, and offers 24/7 emergency service. The company employs NATE-certified, factory-trained technicians, is fully licensed, bonded and insured, and focuses on energy-efficient solutions, fair pricing, and long-term service relationships to keep customers’ homes comfortable and systems running reliably.

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Polar Bear Air Conditioning & Heating Inc.
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Washington, DC HVAC Contractors

Polar Bear Air Conditioning & Heating Inc. is a locally owned HVAC contractor serving Washington, DC and the surrounding areas since 2001. The company provides residential and commercial heating, cooling, and indoor air quality services, including air conditioning repair and installation, ductless mini-split systems, packaged and rooftop units, ductwork and sheet metal work, furnace and boiler services, heat pumps, and indoor air quality solutions such as air cleaners, humidifiers, and UV germicidal lights, along with a Polar Plus maintenance program that offers priority scheduling and discounts. Polar Bear Air Conditioning & Heating Inc. emphasizes respectful, clean, and professional service, stands by its work, and supports customers with promotions and a long record of positive reviews.

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Riley Heat & Air
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Washington, DC HVAC Contractors

Riley Heat & Air is an HVAC contractor serving Maryland and the Washington, D.C. region that provides heating and air conditioning repair, service, installation, duct cleaning, and emergency 24/7 HVAC support. Riley Heat & Air focuses on prompt, expert service for residential customers—offering maintenance plans, system replacements, leak and duct services, and same-day or emergency repairs—while providing online resources and a blog to help customers maintain efficient, reliable heating and cooling systems.

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Spartan Plumbing, Heating and Air Conditioning
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Washington, DC HVAC Contractors

Spartan Plumbing, Heating & Air Conditioning (Spartan Plumbing) is a woman-owned and managed plumbing and HVAC company serving the Washington, D.C. metro area for over 50 years, offering 24/7 emergency service and a full range of residential and commercial services including plumbing, drains and sewers, water heaters, heating, air conditioning, grease removal, commercial service contracts, and hydroj etting; Spartan focuses on licensed, bonded, and insured workmanship, community roots, customer service, and offers multiple dispatch locations across Maryland and DC with a main Maryland office in Brentwood and DC and Bowie dispatch centers.

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Heating and Air Conditioning Questions and Answers

What does an HVAC contractor do?

An HVAC contractor installs, repairs and maintains heating and cooling systems, including furnaces, air conditioners, air handlers, ductwork and thermostats. They diagnose problems, perform seasonal maintenance and size replacement equipment for the home.

When should I repair or replace my heating or cooling system?

Repairs often make sense for a newer system with a single failed part. Replacement is worth discussing when equipment is older, needs frequent repairs, uses a phased-out refrigerant, or no longer keeps the home comfortable. Ask the contractor to compare both options in writing.

How do I choose an HVAC contractor?

Look for a contractor who performs a load calculation before recommending new equipment, explains options clearly and provides written estimates and warranty terms. Ask whether technicians who handle refrigerant hold EPA Section 608 certification and whether local licensing or permits apply.

What affects the cost of HVAC work?

Repair costs depend on the part and diagnostic time. Replacement depends on equipment type, capacity and efficiency, ductwork changes, electrical or gas work, and local permit requirements. Maintenance plans, rebates and the season you schedule in can also affect the total.

How should I prepare for an HVAC service visit?

Clear access to the furnace or air handler, the outdoor unit and the thermostat, and replace or check the air filter if you can. Note what the system is doing, such as noises, short cycling or uneven temperatures, and when the problem started.