Cost guide
What a water heater replacement actually costs
Two houses on the same street can get very different numbers for the same size water heater. The tank is rarely the reason. Here is what actually moves the price on a DMV replacement, so you can read any quote — ours or anyone else's — and know what you're looking at.
Equipment pricing is shown in our warehouse. Installed pricing is quoted after we confirm the details below — we do not publish estimated installed prices.
Scope
What's included, and what isn't
Ambiguous scope is where estimates go wrong. Here's the line we draw.
Included in the installed price
- Removal and disposal of the failed unit
- The new water heater, set, leveled and connected
- New flex or hard-piped supply connections and shutoff
- Thermal expansion tank where the jurisdiction requires it
- Drain pan and discharge routing where required
- Temperature and pressure relief valve and discharge piping
- Fill, purge, leak check and startup with combustion or element verification
Quoted separately
- Permit and inspection fees, which vary by jurisdiction
- Gas line resizing or new electrical circuits
- Venting rework or new termination
- Drywall, framing or door removal needed to get the unit in or out
- Water treatment, recirculation, leak sensors or upgraded shutoffs
Cost drivers
What actually moves the number
Two homes on the same street can price differently. These are the reasons why.
Fuel and system type
Gas tank, electric tank, tankless and hybrid heat pump are four different jobs. Tankless and hybrid conversions add gas sizing, venting or electrical work that a like-for-like tank swap never touches.
Can raise the price
Like-for-like swap
Same fuel, same capacity, same location, existing venting in good condition. This is the cleanest and least expensive version of the job.
Can lower the price
Bringing the install up to current code
Older installs frequently lack an expansion tank, a proper pan and discharge, sediment trap, or correct relief-valve piping. Those are not upsells — inspection will fail without them.
Can raise the price
Venting condition
Shared or undersized flues, corroded vent connectors, and orphaned water heaters left on a chimney after a furnace upgrade all require rework before a new unit can safely vent.
Can raise the price
Access
A basement with a walkout is not a third-floor closet or a crawlspace. Stairs, tight doorways, attics and mechanical closets add real labor time.
Can raise the price
Capacity and recovery
Going from 40 to 50 gallons is usually a modest equipment difference. Going to high-recovery or commercial-grade equipment is not.
Depends on the home
Permit jurisdiction
DC, Montgomery, Prince George's, Howard, Anne Arundel and each Northern Virginia jurisdiction set their own permit fees and inspection process. We pull the permit where one is required.
Depends on the home
Rebates and tax credits
Hybrid heat pump water heaters can qualify for federal tax credits and utility rebates, which reduce your net cost after the fact rather than the invoice itself.
Can lower the price
Comparing quotes
Ask every contractor these questions
Including us. A cheaper number often means a smaller scope, not a better deal.
- Ask whether the quote includes the permit, or whether the permit is being skipped.
- Ask what happens if the venting or gas line turns out to be undersized — is that a change order?
- Ask whether haul-away and disposal are included.
- Ask what the labor warranty covers, separately from the manufacturer's tank warranty.
- A number quoted over the phone without seeing the fuel, venting and clearances is a guess, not a price.
More guides
Keep reading
What makes a tankless conversion cost more than a tank swap
Gas sizing, venting, condensate and descaling — the real cost drivers behind a tankless water heater conversion in DC, Maryland and Northern Virginia.
ReadHybrid heat pump water heaters: cost, rebates and the fine print
What a hybrid heat pump water heater install involves in the DMV — electrical, space, condensate and noise — plus how federal tax credits and utility rebates change the math.
ReadWhat a water heater repair costs — and when it stops being worth it
Thermocouples, elements, gas valves and leaking tanks: which water heater repairs are worth doing, which aren't, and what drives the price of a repair visit in the DMV.
Read
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Show us the full heater, the model label and the vent or connections. Our team reviews the job and follows up with clear options.
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