WATER HEATING REPLACEMENT SPECIALISTS

Water Heater Replacement in Gaithersburg, MD

Rusty water, persistent tank leaks, rumbling sediment buildup, and aging equipment leave your home vulnerable to sudden flooding and frustrating cold showers. Stang Plumbing & Heating delivers complete removal, line upgrades, and code-compliant installations for gas, electric, and tankless systems. Our licensed plumbers provide trusted water heater replacement in Gaithersburg, MD to optimize energy efficiency, protect your property, and ensure consistent hot water for your household.

Top-Rated Local Service

Trusted across Montgomery & Frederick Counties with top customer ratings since 1989.

70+ Years in Business

Family-owned craftsmanship serving Maryland residential plumbing systems since 1954.

Master Licensed & Insured

Fully licensed, bonded and insured master plumber/gasfitter (MD State License #61353 and WSSC License #71981).

Transparent Pricing

Honest time-and-materials pricing with clear cost guidance and no hidden fees or sales pressure.

MODERN HOT WATER EQUIPMENT UPGRADES

Replacing Aging & Leaking Water Heaters Cleanly

Professional water heater replacement involves draining and hauling away failing storage tanks, inspecting water and gas lines, and sizing a modern unit to your family’s hot water demand. Licensed plumbers install thermal expansion tanks, flexible connectors, and proper flue venting to protect your home and satisfy local codes. Choosing Stang Plumbing & Heating for your water heater replacement in Gaithersburg, MD guarantees direct Master Plumber oversight, honest time-and-materials billing, and lasting equipment reliability.

Energy-efficient residential water heater installed in utility closet

Advantages of Professional Water Heater Replacement

  • Prevents Catastrophic Basement Flooding: Replacing a rusted, failing tank eliminates the risk of sudden structural seam ruptures and water damage.
  • Reduces Monthly Utility Bills: Modern high-efficiency gas, electric, and tankless units consume significantly less energy to heat water.
  • Restores Unlimited & Steady Hot Water: Proper unit sizing ensures your household never runs out of hot water during peak shower and laundry times.
  • Complies with Local WSSC Plumbing Codes: Installing thermal expansion tanks and code-compliant venting ensures safe, permitted operation.
STRUCTURAL LEAKS, AGING TANKS, & CAPACITY LOSS

Signs It Is Time to Replace Your Water Heater

  • Active Tank Shell Leaks: Water pooling around the base of a tank with a corroded internal lining requires complete unit replacement.
  • Unit Age Exceeding 10 to 12 Years: Aging standard tank systems suffer from internal scale corrosion and drastic efficiency loss.
  • Persistent Rusty or Metallic Water: Flaking internal glass linings and heavy corrosion produce discolored, foul-smelling hot water.
  • Rumbling and Popping Tank Noises: Hardened mineral scale at the tank bottom acts as an insulator, overheating steel floor seams.
  • Insufficient Hot Water Capacity: Growing families or outdated tank sizing leave household members with lukewarm showers.
  • Frequent & Costly Component Repairs: Repeatedly replacing failed heating elements, thermostats, or gas valves on older units.
SYSTEM SIZING & CODE-COMPLIANT INSTALLATION

Complete Water Heater Removal and Replacement

Our installation teams arrive equipped with heavy-duty hand trucks, code-compliant expansion tanks, copper fittings, flue venting materials, and high-efficiency replacement units.

  • Safe Extraction & Old Unit Disposal: Shutting down power/gas, draining the old tank safely, and hauling it off your property cleanly.
  • System Sizing & Selection Guidance: Helping you choose between standard gas/electric tanks, hybrid heat pumps, or space-saving tankless systems based on usage.
  • Hydraulic & Safety Upgrades: Installing expansion tanks, ball shutoff valves, brass drain connections, and T&P discharge piping.
  • Gas & Flue Line Connections: Testing gas pipe integrity, replacing gas flex lines, and verifying safe flue draft ventilation.
70+
YEARS OF

LOCAL SERVICE

Stang Plumbing and Heating storefront and office location in Gaithersburg Maryland

Typical Service Timeline

COMPLETE SERVICE COVERAGE

Complete Installation Care on Every Replacement Project

  • Full Old Unit Haul-Away: Safely draining, disconnecting, and disposing of your old water heater unit.
  • Code-Compliant Safety Valves: Fitting brand-new T&P relief valves, discharge lines, and expansion tanks.
  • Clean Worksite Management: Protecting surrounding floors with runner mats and cleaning the installation area thoroughly.
  • Post-Installation Testing: Testing water pressure, temperature delivery, gas connections, and flue ventilation safety.

Serving Single-Family Homes & Residential Properties

Homeowners with Aging Water Heaters

Upgrades 10+ year-old gas or electric units before sudden tank failure occurs.

Families Needing Greater Capacity

Upgrades under-sized tanks to larger high-efficiency models or continuous tankless systems.

Homeowners Facing Active Leaks

Replaces corroded, pooling water heaters quickly to avoid subfloor and sheetrock damage.

Property Landlords & Investors

Installs reliable, code-compliant water heaters in rental units to ensure tenant satisfaction.

WHY CHOOSE STANG PLUMBING

Over 70 Years of Trusted Plumbing Expertise in Maryland

As a family-owned local business, we treat your home with the care it deserves. We combine over 70 years of hands-on plumbing expertise with honest time-and-materials pricing, clear base estimates, and direct communication with knowledgeable local professionals every time you call

Jon and Dawne Hershberger, owners of Stang Plumbing in Maryland, with family dog
70+
YEARS OF

LOCAL SERVICE

OUR PROCESS

Simple, Transparent Plumbing Solutions in 3 Steps

We make solving your plumbing issues hassle-free with direct phone support and knowledgeable, experienced plumbers who provide dependable solutions for your home.

01.

Speak Directly With Us

Call or request service online. Speak directly with knowledgeable local staff to discuss your issue and schedule a visit.

02.

Honest Cost Guidance

For larger jobs, our experienced team will identify the root cause of the problem and provide a clear, honest cost guidance estimate.

03.

Long-Lasting Repair

We complete the job cleanly, test every connection thoroughly, and stand behind our work with over 70 years of proven reliability.

OUR RECENT WORK

Proven Plumbing Craftsmanship Across Maryland

Take a look at our recent residential installations, pipe repairs, water heater replacements, and system upgrades completed across Central Maryland.

CLIENT TESTIMONIALS

What Homeowners Say About Our Maryland Plumbers

See how our commitment to honest rates, tidy job sites, and personalized service has earned the trust of homeowners across Maryland.

Google
jram927 profile picture
jram927
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Jeff was knowledgeable and had a great attitude while repairing our leak. I will be calling him again if I ever need plumbing help.
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Hayley Lemmons profile picture
Hayley Lemmons
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We found an unexpected water leak, called Stang Plumbing and they responded within the hour on the same day. Jeff arrived promptly and was very knowledgeable and helpful. He got right to work and helped us start digging into the problem. The problem ended up being more complex than anticipated and we got extra help from John, who was also fantastic. They recommended a restoration company for us to work with and made sure we understood all elements of the issue. Very happy with the service and would 100% recommend or hire them again.
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Emily Rosado
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I had an after hours plumbing emergency with a broken pipe and Jason and Chris came out, explained the issue, and fixed the problem efficiently. I would definitely use them again!
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Brad Smiley profile picture
Brad Smiley
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This was our first time using Stang Plumbing for a problem in our upstairs shower - replacing an old broken diverter valve in an extremely tight space. To say we are happy with the results would be an understatement. Jason Morris, the plumber Stang sent over was not only personable but focused, professional and efficient. This is a guy who knows exactly what he's doing! To make things even better, the cost was by far the lowest from over a dozen calls I made to other services. We are "5-star" happy with the results! A huge shout out to the crew at Stang.
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B L profile picture
B L
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Second time using Stang Plumbing & Heating and very pleased with their service! Jaison was very dutiful and polite. He took the time to explain things and was very knowledgeable and nice. His experience definitely shows. He got both jobs done in no time. Also, the front desk lady's reception was very pleasant and welcoming. This is a company run by and comprised of good, honest working people who value professionalism and transparency. (A rare find these days.) Happy to call on Stang Plumbing & Heating again and again =)
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Michael Williams profile picture
Michael Williams
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During a recent major snowstorm, my water heater failed due to a blocked roof vent. I discussed my problem with Dawn of Stang Plumbing and John and Rob arrived the very next day to analyze / troubleshoot the problem. As a result, they formulated a plan to identify / remediate the problem. I’ve used their plumbing services many times in the past and I’ve always been very satisfied. They are all extremely friendly and very competent professionals. I would highly recommend to my family and friends!
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Joe and Jayne Mraz
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Louis was on time, helpful, quiet, efficient, and FAST. Had our request resolved quickly and under budget. We may have found our forever plumber with Stang..!
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Jean Noronha profile picture
Jean Noronha
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We were very happy with the service we got for a drain blockage and an outdoor faucet replacement. Jason was great, explained things in detail, and went above and beyond to help us.
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James Cherry profile picture
James Cherry
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This is the fourth time over the years, that I have used Stang Plumbing. One time for a leak in the basement, once for a new kitchen sink and faucet install, with me supplying the faucet and the sink, another time for repair of a leak under the kitchen sink. And this time for a garbage disposal install, with Stang plumbing supplying the disposal. Each time they were responsive with an upfront price quote. Each time they arrive the next day as promised. All their personnel are polite and professional. Each time the job was done right and the technician left the job site neat and clean when they finished. I think their prices are resonable and competitive, and I do like that they have senior citizen's discount. Stang Plumbing will always be my first choice, when it comes to my needs for any plumbing work.
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CENTRAL MARYLAND COVERAGE

Serving Communities Across Montgomery, Frederick & Prince George's Counties

Our licensed technicians install and replace water heaters for residential property owners throughout Central Maryland.

  • Montgomery County: Gaithersburg, Rockville, Bethesda, Silver Spring, Germantown, Potomac, Olney, Clarksburg
  • Frederick County: Frederick, Mount Airy, Brunswick, Libertytown, Knoxville, Jefferson
  • Prince George’s County: College Park, Laurel, Hyattsville, and surrounding neighborhoods
COMPLETE RESIDENTIAL CAPABILITIES

Explore Our Full Range of Maryland Plumbing Services

Keep your household plumbing infrastructure operating smoothly with our full line of specialized services:

drain cleaning

Drain Cleaning

Fast clearing of stubborn line clogs and slow drains to restore full, hygienic water flow throughout your entire home plumbing system.

24/7 Emergency Plumber

Prompt dispatch for sudden pipe breaks, major leaks, and severe sewer backups backed by our 24-hour live answering service staff.

Stang Plumbing faucet repair in Gaithersburg MD.

Faucet Repair

Professional repair and replacement of leaking, noisy, or outdated bathroom and kitchen faucets using durable, high-quality brand components.

plumbing leak detection

Leak Detection

Advanced diagnostic testing to pinpoint hidden water leaks behind interior walls, under floorboards, and within main water supply lines.

Clean laundry room drain pipe and PEX supply line rough-in installation

Plumbing Repair

Comprehensive troubleshooting and lasting repairs for damaged supply pipes, failing shutoff valves, and malfunctioning residential fixtures.

Residential gas piping installation for indoor fireplace insert

Residential Service

Dedicated home plumbing care focused on clean execution, durable materials, and long-lasting system performance for your peace of mind.

Sewer Repair

Professional drain snaking, main sewer line clearing, and pipe replacements to keep your home’s drainage system flowing smoothly.

Stang Plumbing service technician repairing a residential toilet in Maryland

Toilet Repair

Efficient fixes for running toilets, persistent base leaks, weak flushes, and full fixture replacements using durable repair components.

Polished chrome bathtub faucet valve replacement and trim kit installation

Tub Replacement

Expert removal of worn bathtubs and precision installation of modern soaking tubs, upgraded shower valves, and clean fixture trim packages.

Water Heater Repair

Rapid diagnostic care and corrective fixes for failing gas or electric water heaters to restore reliable domestic hot water supplies.

Well pressure tank installation and filtration system by a Maryland plumber

Water Treatment

Custom filtration and water softening systems installed to eliminate hard water minerals, unusual odors, and unwanted contaminants.

Submersible well pump replacement and wiring connection in Maryland

Well Pump Repair

Dependable repairs and replacements for deep well pumps, pressure tanks, and electrical control boxes to protect your water supply.

INFORMED DECISION MAKING

Comparing Conventional Storage Tanks and Tankless Systems

Feature / Consideration Professional Component Repair Full Water Heater Replacement
Best Application Systems under 8–10 years old with isolated component failures (thermostats, elements, valves) Units over 10–12 years old with severe internal tank rust or active tank wall leaks
Upfront Cost Lower initial cost focused strictly on replacing broken parts and basic labor Higher investment covering full new equipment, disposal, and complete rough-in
Repair Turnaround Fast resolution often completed in a single visit with on-truck replacement parts Involves selecting new tank sizes, removing heavy old tanks, and re-routing lines
System Longevity Extends existing tank life when structural steel walls remain sound and corrosion-free Resets system lifespan with brand-new manufacturer warranties and modern efficiency
FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions About Household Water Heater Installation in Gaithersburg

Find clear, straightforward answers about our residential repair services, transparent time-and-materials pricing, emergency response availability, and service areas across Central Maryland.

A standard like-for-like storage tank replacement typically takes between 3 to 5 hours. Conversions to tankless systems may take longer due to required gas line resizing and direct vent routing.

Sizing depends on household size and peak water usage. A 1- to 2-person home usually needs a 30–40 gallon tank, while 3- to 5-person households typically require a 50- to 80-gallon gas or electric model.

When water is heated, it expands. In closed plumbing systems with check valves or backflow preventers, this thermal expansion builds dangerous pressure. An expansion tank absorbs this extra volume safely.

Yes. If your unit is over 10 years old and showing signs of heavy sediment rumbling, discolored water, or minor valve rust, replacing it proactively avoids emergency basement flooding and water damage.

Jon and Dawne Hershberger, owners of Stang Plumbing in Maryland, with family dog
Dedicated to Honest Service Since 1954

"Quality doesn't cost, it pays. We treat every customer like family with reliable craftsmanship and with clear honest cost guidance."

— Jon & Dawne Hershberger, Owners

SCHEDULE SERVICE & ESTIMATES

Request Water Heater Replacement in Gaithersburg, MD Today

Leaking tanks, rusty water, and unpredictable hot water disrupt your household and put your property at risk. Stang Plumbing & Heating delivers master-level installations to ensure long-term energy efficiency and reliable hot water. Call (301) 926-1462 or submit an online request today for a reliable water heater replacement in Gaithersburg, MD.