Water Heater Installation & Repair
Reliable Hot Water for Your Northern Virginia Home
Few things disrupt daily life faster than losing hot water. Whether your current unit is failing or your energy bills are climbing, Keston’s Plumbing provides complete water heater services across Alexandria, Arlington, Fairfax, and the greater DC Metro Area. With more than 10 years of experience and full licensing through the Virginia Department of Professional and Occupational Regulation (DPOR), we handle everything from straightforward repairs to full system replacements — and we charge by the job, not by the hour, so you always know the cost before work begins.
Water Heater Repair
A water heater that is not performing correctly does not always need to be replaced. Faulty thermostats, worn-out heating elements, sediment buildup, and failing pressure-relief valves are all issues our technicians diagnose and repair regularly in Alexandria-area homes. We carry common replacement parts on our trucks, so many repairs can be completed in a single visit. Same-day service is available for urgent situations — call us at (703) 655-5274 and we will work to get a technician to your door as quickly as possible. Every repair is backed by our 30-day warranty.
Tank Water Heater Installation
Traditional tank water heaters remain the most common choice for Northern Virginia households, storing 40 to 80 gallons of preheated water for on-demand use. We install all major brands and help you select the right capacity for your household size and daily usage patterns.
Our installation process includes removing the old unit, verifying that supply lines, venting, and connections meet current Virginia code, and testing the new system thoroughly before we leave.
Tankless Water Heater Installation
Tankless systems heat water on demand rather than storing it, which can reduce energy consumption by 24 to 34 percent compared to conventional tank units. As a Green Plumbing Certified company, we recommend tankless installations to Alexandria and Northern Virginia homeowners who want to lower utility costs and reduce their environmental footprint.
Tankless units also last longer — typically 20 years or more with proper maintenance — and free up valuable space in utility closets and basements. Our team handles all aspects of installation, including any gas line upgrades or electrical modifications the new system requires.
Tank vs. Tankless: A Quick Comparison
Tank water heaters have a lower upfront cost and work well for households with predictable usage. Tankless water heaters cost more to install but offer lower monthly energy bills, longer equipment life, and an endless supply of hot water. During your in-home estimate, we walk through the pros and cons specific to your situation so you can make an informed decision.
Water Heater Maintenance and Flushing
Sediment from Alexandria’s municipal water supply settles at the bottom of tank water heaters over time, reducing efficiency and accelerating corrosion. Annual flushing removes that sediment, extends equipment life, and keeps energy costs in check. We also inspect the anode rod, check the temperature and pressure relief valve, and examine all connections for early signs of wear.
Signs Your Water Heater Needs Attention
Knowing when to call a professional can save you from a costly emergency. Watch for these warning signs:
Age of the Unit
Most tank water heaters last 8 to 12 years. If yours is approaching or past that range, start planning for a replacement rather than waiting for a failure.
Rusty or Discolored Water
Brown or rust-colored water from your hot-water taps often signals corrosion inside the tank that can lead to leaks and water damage.
Strange Noises
Popping, rumbling, or banging sounds usually indicate heavy sediment buildup. A flush may solve the problem, but in older units it can mean the tank is nearing the end of its useful life.
Leaking Around the Base
Any pooling water around the unit calls for immediate inspection. A small drip can quickly become a significant leak that damages flooring and drywall.
Inconsistent Water Temperature
Water that fluctuates between hot and cold points to a failing thermostat, a worn heating element, or a unit that can no longer keep up with demand.
Water Heater Replacement
When repair is no longer practical, we provide a clear recommendation and a flat-rate quote for replacement. Our licensed technicians ensure your new water heater is properly sized, code-compliant, and optimized for energy efficiency. We also offer 90 days same-as-cash financing, making it easier to handle an unexpected replacement without financial strain.
Schedule Your Water Heater Service Today
Whether you need an emergency repair, a routine flush, or a brand-new installation, Keston’s Plumbing is ready to help homeowners across Alexandria, Northern Virginia, and the DC Metro Area. We are licensed, insured, and committed to honest pricing with no hourly surprises.
Call (703) 655-5274 to book your appointment or request a free estimate. Same-day service is available for urgent water heater issues.