Tired of running out of hot water halfway through a shower? We diagnose what's actually wrong, explain your options honestly, and deliver the hot water your household needs.
A house with no hot water can't be put on hold, so we don't. We send experienced technicians out for same-day visits and repairs based on how tank and tankless units really break down in local homes.
Not every water heater can be saved, and not every home has the right one. These are the two ways we put a better heater in place.
New water heaters fail early when they're undersized, poorly vented, or missing an expansion tank. We handle the details that get skipped: proper draft, relief valve piping, drain pans, and pressure checks. Every install starts with a site visit and a clear quote, with no surprise add-ons.
Tank water heaters typically last 8 to 12 years. When the tank itself starts leaking or the hot water turns rusty, no repair will save it, and the right move is a new heater sized to your household. The price is settled before the old tank is drained, and the new one goes in with the permits and code items your area requires.
Most water heater repairs in Reston typically land between $150 and $600. The part that failed drives the price: an element or thermocouple is a quick, inexpensive fix, while a gas control valve is a bigger job. Reston Water Heater diagnoses the problem first and gives you a clear price before any work starts.
| Repair | Typical cost | What it usually means |
|---|---|---|
| Heating element or thermostat (electric)No hot water, or a short and lukewarm supply | $150–$350 | Most common electric repair, usually same visit |
| Thermocouple or flame sensor (gas)Burner shuts off seconds after lighting | $150–$300 | Burner shuts off seconds after lighting |
| Gas control valveValve will not open or regulate; weigh it against replacement on older tanks | $300–$700 | Valve will not open or regulate; weigh it against replacement on older tanks |
| Anode rod replacementRotten-egg odor or a rod worn down to bare wire | $150–$350 | Rotten-egg odor or a rod worn down to bare wire |
| T&P relief valveDripping or discharging valve; water pressure checked too | $150–$300 | Worn valve replaced with the correct rating |
| Dip tube replacementCracked tube mixing cold water into the hot supply | $150–$300 | Hot water runs out fast, plastic bits in aerators |
| Drain valve replacementLeaking or stuck valve at the base of the tank | $100–$250 | Drip at the bottom valve, often plastic on older tanks |
Typical ranges for common repairs. Your exact price is quoted after diagnosis.
When a repair climbs toward the cost of a new heater on an older tank, we'll lay out both prices together, with no pressure either way. These are typical ranges, not quotes. Call (703) 202-2745 for your price.
One call handles it all. Repairs, replacements, tankless installs, heat pump upgrades, leak repair, and emergencies, handled by experienced professionals.
When a water heater leaks or quits without warning, we help you shut it down and get it fixed.
Gas water heater service from pilot outages to full installs, done safely.
Error codes, scale, and ignition faults on tankless units, diagnosed with real testing.
Leaks traced to the true source, from valves and fittings to the tank itself, then fixed honestly.
Additions, upgrades, and relocations installed cleanly with every connection tested.
High-recovery hot water for restaurants, salons, laundromats, and apartments, scheduled around your hours.
No hot water from an electric tank? We find the failed part and fix it safely.
Yearly tank and tankless maintenance that catches small problems before they leak.
Endless hot water done right, starting with honest sizing and a careful install.
Hybrid water heaters that pull heat from the air, installed where they can actually perform.
Tank, tankless, and heat pump replacements with the code work included.
Not sure if you need professional help? These are the most common hot water problems we handle in homes across the area.
A tank that stops heating is the call we run most. Our trucks carry thermocouples, elements, and thermostats to restore hot water the same day.
Same-day repair detailsA dripping temperature and pressure relief valve is a warning sign, not a nuisance. It usually means excess pressure or heat, often from a missing expansion tank.
Water heater leak repairThat slow decline in performance isn't just age. Regular flushing and an anode rod check bring many tanks back to full capacity in one visit.
Water heater maintenanceRust at the fittings, a spent anode rod, and water pooling under the tank are signs the smart money is on replacement.
Water heater replacementAn error code on a tankless unit is the heater telling you what it doesn't like, often scale buildup, an ignition fault, or a flow sensor problem.
Tankless repairA growing family, a new soaking tub, or back-to-back showers can outrun a 40-gallon tank. A tankless unit heats water on demand, so it doesn't run out.
Tankless installationPlenty of companies sell a new water heater the moment yours hiccups. We diagnose first, explain what actually failed, and only recommend replacement when the math genuinely favors it.
A house with no hot water is an every-hour problem, so we treat it like one. Same-day appointments are available, with evenings and weekends when you need them.
Our technicians work on water heaters every day (gas and electric tanks, tankless units, and heat pump models) and keep up with new equipment as it comes out. Your home gets a specialist, not a generalist with a parts catalog.
We don't just swap the failed part. We check what killed it (high water pressure, sediment, a bad vent draft, a loose wire) and correct that too, so the same failure doesn't come back.
Most people don't think about their water heater until the shower turns cold. We think about them all day. Our team has seen just about every way a water heater can fail, and that experience shapes how we approach each job, from the first diagnostic to the final temperature check.
Our team goes beyond the quick patch. We know the failure patterns, venting issues, and code details common to local homes and businesses. This local knowledge means faster diagnosis, fewer repeat visits, and heaters that last.
One call connects you with a nearby technician who can size up the problem and get you a quote.
Every job runs through the same proven steps, so nothing gets missed and the fix actually lasts.
Ring (703) 202-2745 whenever it suits you. We'll talk through the symptoms, tell you if anything needs immediate attention, like shutting off the water or gas, and lock in a visit time that fits your schedule.
We don't guess. The diagnostic covers the full system, including the supply lines and venting, and turns into a plain recommendation with the cost spelled out up front.
We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the tank.
To keep your hot water reliable long-term, we can set up yearly maintenance that flushes sediment, checks the anode rod, and catches small issues before they turn into a leak.
Same-day appointments · Honest, upfront quotes
A leaking water heater isn't something to wait out. Here's what our team does the moment you call to restore your hot water fast.
You call (703) 202-2745. A real person answers, assesses your situation, and sets up fast service for your home. If you smell gas, leave the house and call your gas utility first, then call us.
Your technician shows up ready to work, not just to look. The common failure parts ride on every truck, so the visit moves straight from diagnosis into repair.
This is where the problem actually gets solved. We repair what's repairable immediately, and when replacement is the honest answer, we handle draining, removal, disposal, and a code-compliant install without drama.
Reliable hot water is the whole point. We verify the repair, note the heater's age and condition, and offer a simple yearly plan that keeps sediment out, efficiency up, and cold showers off your calendar.
"Water started pouring out of the heater closet at 10 pm on a Saturday. They picked up right away, talked me through turning off the water and the breaker, and had a technician out early the next day. New tank installed with a drain pan this time. Could not have asked for a better response."
"The relief valve pipe kept dripping and I didn't know if it was a big deal. The tech checked our water pressure and found it was way too high, then added an expansion tank and a pressure reducing valve. No more drips, and he showed me how to test the valve once a year."
"The pilot on our gas water heater kept going out, and I was relighting it every other day. The technician found a worn thermocouple and replaced it on the spot. It has stayed lit ever since, and he explained what to watch for going forward."
Your household runs on hot water every single day. Here's why local families choose Reston Water Heater.
Hands-on experience is the gold standard for water heater work. Every technician on our team has real field experience across gas, electric, tankless, and heat pump units, which means your heater is serviced according to proven best practices.
Doing it right is built into how we install. We handle the gas, venting, electrical, and plumbing details precisely, pull permits where local code requires them, and test the full system before we call it done, and we tell you what we did and why.
Our team focuses on keeping heaters alive with inexpensive yearly care. If you want years more from your current tank, our maintenance visits drain sediment, check the anode rod, and test the relief valve. No surprises, no hidden fees. This approach is why so many homeowners recommend us.
We cover every community listed below with same-day and scheduled water heater service.
Vienna's call for tank and tankless water heaters: repairs, installs, flushes, and leak fixes.
Water heaters in ViennaReliable hot water for Fairfax homeowners, from a quick part swap to a full tankless upgrade.
Water heaters in FairfaxExperienced water heater technicians serving the Leesburg area with upfront pricing and honest advice.
Water heaters in LeesburgWater heater repair and replacement for Herndon homes and businesses, with fast help when the hot water quits.
Water heaters in HerndonComplete water heater care in Manassas: diagnosis, repair, replacement, and yearly maintenance.
Water heaters in ManassasGas, electric, tankless, and hybrid units serviced across Alexandria, done right the first time.
Water heaters in AlexandriaWhat our team wants every homeowner to know about water heaters.
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Read MoreRusty water, rumbling, and damp spots: what your water heater is trying to tell you. Practical advice from the team that does the work.
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Read MoreWater heater problems only grow with time. Our team can respond fast. Call now for a fast quote.
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