Tankless Water Heater Installation in NOVA, Fredericksburg and Fairfax, VA

tankless water heater

Endless Hot Water, On Demand with a Tankless Water Heater

Tired of running out of hot water in the middle of a shower? Upgrade to efficient, reliable comfort with our expert Tankless Water Heater Installation in Fredericksburg and Fairfax, VA, NOVA and surrounding areas. At OHA HVAC, Plumbing, Chimney and Fireplaces, we help homeowners and businesses enjoy continuous hot water, lower energy bills, and more space by switching to tankless water heating systems. Unlike traditional units, tankless models heat water on demand—so you only pay to heat what you use. It’s a smarter, cleaner, and more efficient way to power your daily routine.

Call 703-213-5161 today to schedule your installation and experience hot water without limits!

Smart Technology, Professional Results

Choosing OHA HVAC, Plumbing, Chimney and Fireplaces means choosing expertise and service you can rely on. We’ve installed tankless systems across homes and commercial properties, helping our customers make the most of modern water heating technology. Our licensed technicians guide you through system selection, size your unit for your household’s demand, and install it seamlessly with full code compliance. We make the process smooth—and the results immediate.

Why Go Tankless? Key Benefits & Our Installation Process

Tankless water heaters heat water only when it’s needed, offering energy efficiency and consistent performance. Whether you want to save money, gain space, or upgrade your home’s value, going tankless is a smart choice. Our comprehensive service includes:

  • On-site evaluation and system sizing
  • Recommendations for gas or electric models
  • Installation of wall-mounted tankless units
  • Integration with existing plumbing and power supply
  • Venting and condensate drain configuration
  • System flushing, testing, and final walkthrough
  • Maintenance tips for long-lasting performance

With a properly installed tankless system, you’ll enjoy endless hot water, fewer repairs, and a lower utility bill—without sacrificing comfort.

Call Today for Tankless Water Heater Installation

Stop settling for outdated, inefficient water heaters. With professional Tankless Water Heater Installation in Fredericksburg and Fairfax, VA, NOVA and surrounding areas, OHA HVAC, Plumbing, Chimney and Fireplaces delivers dependable hot water and modern energy savings. Whether you’re upgrading an existing unit or building new, we’ll help you choose a tankless system that fits your lifestyle and budget.

Call 703-213-5161 today to schedule your consultation and enjoy hot water the smart way!

Tankless Water Heater Installation FAQs

What are the benefits of installing a tankless water heater?

Tankless water heaters provide endless hot water, take up less space, and are more energy-efficient than traditional units—saving you money in the long run.

How long does a tankless water heater installation take?

Most installations can be completed in one day, depending on your home’s plumbing and electrical setup. We’ll assess and provide a timeline upfront.

Is a tankless system right for my household?

If your home uses a lot of hot water or you want better efficiency, a tankless system may be ideal. We can help you determine the best fit for your needs.

Most Recent Pins (10)

Bernie Miller
A technician serviced a boiler during a routine check-up in Fredericksburg, Virginia. The service ensured the boiler operated correctly and safely for continued use. Regular maintenance helps identify issues early and supports efficient heating performance.
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Scott Brown
A plumbing technician in Fredericksburg, VA provided a free estimate to replace a 75-gallon gas power vent water heater that is over 10 years old. The homeowner received options for a direct replacement or switching to a tankless water heater system.
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Scott Brown
A plumbing technician in Manassas, VA completed an inspection for a water heater replacement estimate. The technician assessed a 38-gallon electric low boy unit located below the HVAC system in a laundry room. The homeowner is reviewing estimates and plans to proceed with the replacement in the winter. The estimate will be shared by email.
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Scott Brown
A technician in Fredericksburg, VA provided a free plumbing estimate to replace a leaking 70-gallon water heater. The inspection recommended a new 75-gallon natural gas unit. The customer received the quote and will decide on installation at a later time.
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Scott Brown
A plumber in Woodbridge, VA removed an old water heater and installed a new 75-gallon atmospheric water heater with an expansion tank and drain pan. The technician also supplied an additional unit for future use. The system was leak tested and confirmed to be secure before completion.
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Scott Brown
A technician inspected a 50-gallon electric water heater in Spotsylvania Courthouse, VA due to slow heating. The upper element, thermostat, and lower readings were faulty. The homeowner chose to replace the unit. A deposit was collected, and installation was scheduled for the following day.
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Scott Brown
OHA HVAC Plumbing Chimney and Fireplaces upgraded a residential water heater system in Stafford, VA. The team installed a 50-gallon propane unit with a tank booster, Corro-Protec anode rod, leak protection pan, and 10-year warranty. They completed safety checks, followed code requirements, and coordinated permit inspections for proper system operation.
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Scott Brown
Technicians completed a water heater flush at a residence in Falls Church, Virginia. They drained the unit, removed sediment, restored water flow, bled air from the system, and checked for leaks. The service improves heater efficiency and includes a 30-day limited warranty. A follow-up flush is recommended in one year.
Scott Brown
OHA HVAC Plumbing installed a 75-gallon natural gas water heater in Manassas Park, Virginia. The installation included a tank booster, expansion tank, drip leg, gas valve tee, emergency drip pan, shut-off valve, and gas cock. The technician tested the system and confirmed it was leak-free before departure.
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Scott Brown
A technician replaced an old water heater with a new unit and confirmed full system operation. Installation was completed without issues. This service took place in Stafford, Virginia.
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