Cross-sectional illustration of a modern home with heating and cooling systems, showing living room furniture, pipes, and a control panel.

Reliable HVAC Services You Can Trust in the DMV

Heating, cooling, installation, and maintenance for residential and commercial properties across Washington DC, Maryland, and Virginia.

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Our Services

Water heater and furnace in a basement with wooden flooring and white walls.

Heating Services

  • Furnace repair & replacement

  • Heat pump service

  • Seasonal maintenance

A technician is using a manifold gauge set to check refrigerant pressure on an air conditioning unit.

Air Conditioning Services

  • AC repair & installation

  • System diagnostics

  • Energy-efficient upgrades

A person is using a touchscreen device to select 'Heat' option on a system test menu.

HVAC Installation & Replacement

  • New system installs

  • Equipment upgrades

  • Residential & commercial

Person removing and replacing a furnace filter in a furnace unit.

Maintenance & Emergency Repair

  • Preventive maintenance

  • Emergency HVAC service

  • Performance inspections

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Why Choose J & J Contractor, LLC

  • Locally owned and operated

  • Honest pricing and clear communication

  • Experienced, professional technicians

  • Focused on long-term solutions, not quick fixes

Proudly Serving the DMV Area

Service Areas Include:


Washington DC • Bowie • Upper Marlboro • Silver Spring • Alexandria • Arlington • and surrounding areas

About J & J Contractor, LLC

Logo for Contractor LLC featuring a house roof and the initials J & J with the company name underneath.

J & J Contractor was founded to provide dependable, high-quality HVAC services homeowners and businesses can trust.

We believe in doing the job right, showing up on time, and treating every property with care and professionalism.

Licensed. Insured. Committed to quality workmanship across the DMV.

Need HVAC Service or a New System?

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