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Heating & Air Conditioning
Repair, replacement, and maintenance on every major system.
- AC Repair
- AC Installation
- Furnace Service
- Heat Pumps
- Boilers
- Rooftop Units
- Ductwork
- Maintenance Plans
Pick one and we will keep it short. Three taps and you are done.
We run calls seven days a week, and we answer the phone around the clock.
Last step. We will call you back to confirm the window.
An emergency deserves a person, not a web form sitting in an inbox. Call the shop and we pick up.
No heat, no water, an active leak, or a backed up main. These move to the front of the line, day or night, weekend or holiday.
Your request is in and somebody will call you back to confirm a window. Here is what we have:
Plumbing, heating, and cooling for homes and businesses across Northern Virginia. Family owned in Woodbridge, 40+ years in the trade, and no job we hand back.
We work on every major brand, not just the ones we install. Trane · A.O. Smith · Navien · Burnham · Rheem · Bradford White · Goodman · Lennox · and whatever is already in your building.
Most contractors do heating or plumbing. We do both, to the same standard. One number to save.
Repair, replacement, and maintenance on every major system.
From a dripping faucet to a full sewer line replacement.
24/7 emergency service · Homes and businesses
We're usually the
second call.
Almost always the
last one.
Other contractors call us when a job goes sideways. Forty years across commercial buildings and Northern Virginia homes means we have seen the problem before, and we finish it.
Owners and tenants. Two very different customers, one number that covers both.
Homeowners and renters across Northern Virginia. Every plumbing job we do for a commercial building we do for houses too, right down to sewer lines and water mains.
Property managers, tenants, and building owners. We work around your hours and keep the building running.
Real jobs, real photos, all our own work. No stock photography, no borrowed job sites.
Reach a real person at the shop. Tell us what is going on and we schedule the visit.
We find the actual problem and hand you a firm price. Nothing starts until you say go.
Done right, cleaned up, and standing behind it. One call, both trades, no runaround.
Real reviews from our Google profile, not testimonials we wrote ourselves. Read every one of them, including the critical ones.
I needed to replace water heater right before the big snowstorm. 1 stop was out 2 hours after I contacted them. Jon and his team did a fantastic job and prices are more than reasonable. I will be using them again for plumbing and electrical! Great job! Excellent customer service!!!
We used 1st Stop Mechanical to replace a sewer line at a property we own. They met with me, gave us a fair price, and did the work quickly. My wife and I were impressed.…
I had 2 root intrusions in the sewage pipe under my front lawn. Jon and his team assessed the situation to see if we could use the newer pipe liner solution, cleaned the roots out of the pipe for a good price…
Home base is Woodbridge. We run Prince William, Fairfax, Loudoun, Arlington, and Alexandria daily, plus the wider DMV metro for commercial work.
Still not sure? Pick up the phone. We would rather talk it through than have you guess.
Ask Us DirectlyCall the shop and talk to somebody who has been doing this for decades, or send the form and we will call you back.
(703) 491-6542Takes about 30 seconds. We answer every request.