Veteran-founded by Fred Ouellette in 1995. Over three decades of keeping families comfortable year-round. HVAC, plumbing, chimney, fireplaces, and roofing — all under one trusted roof. Available 24/7.
After serving his country, Fred built OHA HVAC, Plumbing, Chimney & Fireplaces from the ground up — starting in Fredericksburg with a single truck and a commitment that every customer gets treated like a neighbor.
Three decades later, OHA is one of the most reviewed and trusted home service companies in the entire Fredericksburg region. More than 3,000 families have left five-star reviews — not because of advertising, but because the work is done right every time.
HVAC installation & repair, plumbing, chimney sweeping & inspections, fireplace installation, and roofing — one company, one call, every system in your home covered.
Serving Fredericksburg, Stafford, Spotsylvania, King George, Culpeper, Fairfax, and dozens of surrounding communities across Virginia.
Every job is backed by OHA's satisfaction guarantee. If it's not right, they make it right — no questions, no runaround.
HVAC, plumbing, chimney, fireplaces, and roofing — all handled by OHA's licensed and experienced technicians.
These aren't cherry-picked. Three thousand customers took the time to leave a five-star review because OHA earned it.
"Bernie was absolutely thorough — went through every possible cause, explained everything clearly, and gave me three different options. No pressure, no upsell. Just honest answers. OHA has been my go-to for 8 years and that's not changing."
"Asghar arrived same day, diagnosed the problem in 15 minutes, and had the AC running before dinner. I called four other companies first and OHA was the only one who showed up. Incredible service."
"Harold identified an issue with our chimney that our previous inspection missed — and it was a safety hazard. He explained exactly what needed to be fixed and the team came back and handled it perfectly. Peace of mind is worth everything."
Serving Fredericksburg, Stafford, Spotsylvania, King George, Culpeper, and all surrounding Virginia communities. Available 24/7 for emergencies.