Serving Fairfax, Virginia
HVAC & Plumbing Services in Fairfax, VA
Fast, reliable heating, cooling, and plumbing service for Fairfax homeowners. Licensed technicians, same-day availability.
Your Local HVAC & Plumbing Experts in Fairfax
Fairfax homeowners trust A United HVAC & Plumbing for dependable heating, cooling, and plumbing service. We're familiar with the housing stock throughout Fairfax — from older homes in the City of Fairfax to newer construction in Fair Lakes and Fair Oaks — and we bring the right expertise for every job.
Whether you need emergency AC repair on a hot summer day, a furnace tune-up before winter, or a water heater replacement, our licensed technicians respond fast and fix it right. We offer same-day service for most calls and upfront pricing on every job.
Services We Provide in Fairfax
AC Repair & Installation
Same-day air conditioning repair and new system installation for Fairfax homes.
Furnace & Heating
Furnace repair, installation, and tune-ups to keep your Fairfax home warm all winter.
Heat Pumps
Energy-efficient heat pump installation and repair for year-round comfort.
Water Heaters
Tank and tankless water heater installation, repair, and replacement.
Plumbing Repairs
Leak detection, pipe repair, fixture replacement, and more.
Drain Cleaning
Professional drain cleaning and hydro-jetting for clogged drains.
Neighborhoods We Serve in Fairfax
Why Fairfax Homeowners Choose A United
Licensed & Insured in Virginia
All technicians are fully licensed by the Commonwealth of Virginia and carry comprehensive insurance.
Same-Day Service Available
We offer same-day appointments for most HVAC and plumbing calls in the Fairfax area.
Upfront, Honest Pricing
We quote the full price before starting any work — no hidden fees or surprise charges.
24/7 Emergency Response
Heating failures, burst pipes, and AC breakdowns don't wait for business hours — neither do we.
Need HVAC or Plumbing Service in Fairfax?
Call today for same-day service or a free estimate.
Licensed & Insured · Serving All of Northern Virginia