Cold Shower This Morning? Let's Fix the Cause.
A water heater rarely fails all at once. It warns you first — showers that run lukewarm, a puddle appearing under the tank, a knocking sound when the burner fires, or rusty water at the tap. The good news is that most of these symptoms point to a single failed part, not a dead unit. Replacing a $30 thermocouple beats replacing a $2,000 heater every time.
GB Plumbing focuses on diagnosing and repairing what's actually broken. We're a Burlingame-based, licensed team (#1158152) and we service both gas and electric tank water heaters. When you call (415) 738-1450, we test the failed component in a set order, tell you exactly what's wrong, and give you the price before we start. No mystery charges, no automatic push to replace.
Because our trucks carry the parts that fail most often, the majority of repairs are finished in a single same-day visit. You get your hot water back today, not next week.
"Woke up to no hot water and assumed we'd need a whole new heater. GB came out the same afternoon, found a burnt-out heating element, swapped it, and we had hot showers by dinner. He easily could have sold us a new unit and didn't. That's why we'll call them every time."
— Burlingame homeowner, Lyon-Hoag neighborhood ★★★★★
Common Water Heater Problems We Repair
Signs Your Water Heater Needs Repair
Catch these early and a small fix stays a small fix:
Water Temperature Is Off
Lukewarm showers, water that never gets truly hot, or hot water that runs out far sooner than it used to. This usually points to a failed heating element, a drifting thermostat, or heavy sediment stealing tank capacity — all repairable.
Sounds & Smells You Notice
Popping, rumbling, or crackling means sediment is cooking at the bottom of the tank. A rotten-egg or metallic smell points to a reacting anode rod. Both are fixable with a flush and part swap before they damage the tank.
Moisture Around the Unit
Dampness at fittings, a dripping relief valve, or a small puddle at the base. Connection and valve leaks are straightforward repairs. Only a leak from the tank body itself signals replacement — and we'll tell you honestly which one you have.
"Our heater was rumbling like a freight train and the water had a rusty tint. GB flushed out years of sediment, replaced the anode rod, and explained exactly why it had happened. Quiet again and the water runs clear. Fair price and no pressure to buy a new tank."
— San Mateo homeowner, Sunnybrae ★★★★★
Our Repair Process
Diagnose the Real Cause
We test components in order — power and gas supply, pilot and thermocouple, elements, thermostats, and valves — so we identify the exact failure instead of replacing parts by guesswork.
Upfront Repair-or-Replace Advice
You get a clear price and an honest call on whether repair makes sense given the age and condition of your unit. If a repair won't last, we say so before you spend a dime.
Fix It Right — Usually Same Day
Because our trucks carry the common parts, we complete most repairs on the first visit. Thermocouples, elements, thermostats, gas valves, and relief valves are typically in stock.
Test & Confirm Hot Water
We restore heat, verify the correct temperature and pressure, check for leaks, and confirm the fix holds before we leave. You end the visit with reliable hot water.
When Repair Makes Sense — And When It Doesn't
If your tank is under roughly 8-10 years old and the problem is a component — element, thermostat, thermocouple, gas valve, or relief valve — repair is almost always the right move. If the tank shell itself is leaking, or the unit is past 12 years and failing repeatedly, we'll walk you through replacement options instead of throwing money at a heater on its way out. Either way, the decision is yours and the pricing is upfront.
Get Your Hot Water Back — Today
Don't spend the week heating pots on the stove. A licensed GB Plumbing tech can diagnose your water heater and, in most cases, repair it the same day. Fair pricing quoted before we start.
(415) 738-1450 — Call Now