Fast, Reliable Repairs to Keep Your Hot Water Running
When your water heater stops working the way it should, it disrupts everything — showers, laundry, dishes, your entire routine. At Dave’s, we diagnose issues quickly and repair them with clean workmanship and clear communication from start to finish.
When Something Feels Off, We Get to the Bottom of It
Water heaters rarely fail overnight. Most problems start small — a little temperature fluctuation, a strange noise, or more time needed to heat water. Left unchecked, these small issues can lead to bigger, costlier repairs.
Professional repair helps:
Restore consistent hot water
Prevent leaks and safety issues
Reduce energy waste
Extend the life of the unit
Keep day-to-day routines uninterrupted
Our goal is simple: get your hot water back quickly and safely.
How We Identify the Problem
A water heater has a handful of components that must work together. When one stops functioning properly, performance drops fast. That’s why our repair visits focus on pinpointing the exact issue — not guessing or swapping parts blindly.
During diagnostics, we evaluate:
Heating elements, burners, and ignition systems
Temperature accuracy and cycling
Pressure and safety controls
Gas or electrical connections
Tank condition and signs of wear
Draining and sediment buildup
Expansion tank and venting, when applicable
You’ll know exactly what went wrong and what needs to be done to fix it.
What to Expect During Your Repair Visit
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Conversation First
We start by listening. You tell us what’s been happening — temperature changes, noises, leaks, anything you’ve noticed. -
Full Diagnostic Check
We evaluate performance, safety, and the overall condition of the system. -
Clear, Plain-Language Explanation
No jargon. No guessing. Just a straightforward breakdown of what’s going on. -
Upfront Pricing
You’ll know the repair cost before any work begins. No surprises. -
Clean, Careful Work
We protect your space, repair the issue, and clean up before we leave. -
A System That Works Like It Should
Before we go, we verify everything is operating safely and correctly.
Dependable repairs with zero stress — that’s the standard.
Common Water Heater Problems We Fix
Our technicians handle the issues most likely to interrupt your hot water or put your home at risk. We repair:
Failed heating elements or thermostats
Burner and ignition problems
Leaking valves or fittings
Temperature-pressure relief valve issues
Sediment-related performance loss
Gas control or electrical failures
Anode rod deterioration
If it can be repaired safely and cost-effectively, we’ll make it happen.
When a Repair Isn’t the Best Option
Some water heaters reach a point where repairing the system doesn’t make financial sense — especially if the tank is deteriorating or the unit is well past its expected lifespan.
If replacement is the smarter choice, we’ll explain:
What’s causing the issue
Why repair may not be the best long-term fix
What replacement options fit your home
Costs, timelines, and what to expect during installation
No pressure — just honest guidance based on what we’d do in our own homes.
Why Homeowners Choose Dave’s
Experience You Can Feel
We’ve served Northern Virginia homes for 50 years.
Fair, Upfront Pricing
No upsells, no hidden fees — just straight answers.
Local & Reliable
Based right here in Sterling, ready when you need us.
Respectful Service
We treat every home like it’s our own.
Request Service - It Only Takes 7 Seconds!
Dependable Hot Water to Keep Your Home Comfortable
Dedicated to Your Comfort Since 1975
At Dave’s Heating & Air, we know how important reliable hot water is to your home. Whether we’re repairing your current system or installing a new one, our team takes the same careful, honest approach we’re known for.
We explain what we find, walk you through your options, and outline the cost before any work begins — no surprises and no pressure.
Our technicians take the time to do the job the right way, from clean, precise installations to thorough safety checks on every visit. And because we stand behind our workmanship, your water heater service comes with a written guarantee.
When you choose Dave’s, you get dependable hot water and a team that treats your home with respect every step of the way.
Call 571.346.3940 and let’s keep your home comfortable!
Hear It from Our Happy Customers
Nothing makes us prouder than hearing directly from the wonderful people we serve right here in Sterling, Herndon, Reston and Northern Virginia. Our reputation is built on knowledgeable technicians, courteous service, and the promise that we always leave your home as clean as we found it—if not cleaner!
Customers regularly praise our team for arriving on time, delivering expert system installations and repairs, and ensuring the whole process is seamless from start to finish. Whether it’s a complete HVAC replacement or routine maintenance, folks appreciate the extra care and attention to detail we bring. Many even say they’d recommend us to friends and neighbors without hesitation. Now that’s high praise!