Sizing to your household
We size the new tank to how many people live there and how you use hot water, not just to the label on the old one.
Water Heater Replacement · Fairfax, VA
Quick answer
LeMaster Plumber replaces water heaters across Fairfax, from mid-century homes in Mantua and Mosby Woods to townhomes near Fairfax Circle. In many older Fairfax houses the tank sits in a basement corner, and a new one often needs its vent pipe and gas connection brought up to current code as part of the swap. Replacement is permitted work, and we pull the permit with the local building office. Call (703) 832-9090 to set up your replacement.
In Fairfax’s mid-century homes, the water heater usually sits in the basement next to the furnace, often sharing a flue. When a new tank goes in, we check that the vent still drafts properly and that the flue pipe suits the new unit. Many of these basements were finished years later, so we add a drain pan and route it to a floor drain where one exists. In Fairfax’s townhomes, the heater is more often in a lower-level utility closet, where a thermal expansion tank is usually needed on the cold line. When the new unit is running, we carry the old tank out and haul it away.
We size the new tank to how many people live there and how you use hot water, not just to the label on the old one.
Gas and electric tank water heaters installed with new connections, shutoffs and a fresh temperature-and-pressure relief valve.
On gas units we check the flue and draft so exhaust leaves the house. We fit expansion tanks and drain pans where the system or location calls for them.
Water heater replacement is permitted work. We pull the permit and handle the inspection so you do not have to.
We drain and remove the old tank and take it with us. You are left with a working heater and a clean space.
If you keep running out of hot water or need the floor space, we will walk through whether a tankless unit fits your home.
We check its age, the leak or failure, the fuel type, the venting and the space, and confirm replacement is the right call.
You get the unit, the scope and the price before anything starts. You approve it first.
We shut off and drain the old tank, remove it, and install the new one with new connections, valves and venting to code.
We fill and fire the new heater, check for leaks, set the temperature, and haul the old unit away.
Every water heater replacement is quoted upfront once we have seen the old unit and the space. The price covers the unit, the install, the permit and haul-away. You approve it before any work starts.
Need water heater replacement in Fairfax? Pick your own appointment time online.
Or call (703) 832-9090 — we answer 24/7.
Why LeMaster Plumber
You approve the price before we start — no surprises and no pressure. You’ll always know the cost before any work begins.
Every job is backed by proper training, the right permits, and a workmanship guarantee.
We show up on time, protect your space, and leave the job cleaner than we found it.
Yes. Replacing a water heater is permitted work, even when the new unit matches the old one. We pull the permit with the local building office and handle the inspection, so you don’t have to.
Not always, but it needs checking. A new tank has to vent safely alongside the furnace, and some older flues need a new vent connector or liner. We look at it first, and any venting work is part of the upfront price you approve before we start.
Most homes land on a 40- or 50-gallon tank, based on how many people and bathrooms you have. We ask how you use hot water and match the size, rather than just copying what was there before.
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