Servicing the Greater Los Angeles Area for Tankless Water Heater Repairs Since 1995

  • Free Basic Diagnostic

    A $99 Value!

    Free Trip Fee – Basic Diagnostic

    • Basic troubleshooting and tankless water heater diagnostic
    • Estimates for repair, replacement or upgrade options
    • Visual inspection of water pressure, water quality, proper exhaust venting and gas leak detection

    *Limit one coupon/offer per service

    Offer Expires

Common Issues We Address for Tankless Water Heater Repairs in Los Angeles

  • Water is too hot or too cold or possibly not hot at all
  • Leaking from above the water heater
  • Rusty or brown-colored water
  • Water has a smelly odor

Experiencing another issue not listed? Our trusted professionals can help you identify the problem and work to identify a solution.

Water Heater Repair Service Vehicle
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Tankless Water Heater Troubleshooting Guide

Santa Clarita Emergency Services

Emergency situations do not always wait until convenient hours. Our emergency service is available 24/7 so that you’re never in the dark. We have a team of professionals available to assist you 24/7, regardless of the emergency.

Inconsistent Temperatures

What to Look For: Fluctuating hot and cold water during use.

What Might Be Going On: This could be due to sensor malfunctions or mineral buildup affecting the heating element.

Risks of Not Repairing: Prolonged issues can lead to complete system failure, higher energy bills, and potential safety hazards.

Spotting Leaks

What to Look For: Water pooling around the unit or dampness on the walls.

What Might Be Going On: Internal issues like a faulty valve or seal might be causing the leak.

Risks of Not Repairing: Water damage to your property, mold growth, and reduced efficiency of the unit.

Water’s Rusty or Smells Off

What to Look For: Brownish discoloration in water or an unpleasant odor when you turn on the tap.

What Might Be Going On: Bacteria buildup can cause the unpleasant smell. Tankless systems typically don’t store water long enough for rust, but check for external rust or corrosion on the unit.

Risks of Not Repairing: Health concerns from consuming contaminated water and further damage to the unit.

Mineral Buildup

What to Look For: Reduced water flow or white scale deposits around connections.

What Might Be Going On: Hard water can cause calcium and magnesium deposits inside the heater, affecting its efficiency.

Risks of Not Repairing: Reduced efficiency, increased energy bills, and potential system failure.

System Overload

What to Look For: The system shutting down when multiple hot water outlets are used simultaneously.

What Might Be Going On: The heater’s capacity is being strained beyond its limits.

Risks of Not Repairing: Frequent system shutdowns, reduced lifespan of the unit, and inconsistent hot water supply.

Ventilation Concerns

What to Look For: Signs of soot around the unit or an unfamiliar odor.

What Might Be Going On: Proper ventilation is crucial for gas-fueled tankless heaters. Blockages can affect combustion air or venting, leading to reduced efficiency or safety hazards.

Risks of Not Repairing: Potential carbon monoxide buildup, reduced efficiency, and fire hazards.

Electrical Hiccups

What to Look For: The system not powering on, frequent shutdowns, or tripping circuit breakers.

What Might Be Going On: Faulty wiring or component malfunctions can disrupt the heater’s operation, especially for electric tankless units.

Risks of Not Repairing: Complete system failure, potential electrical fires, and safety hazards.

  • Free Basic Diagnostic

    A $99 Value!

    Free Trip Fee – Basic Diagnostic

    • Basic troubleshooting and tankless water heater diagnostic
    • Estimates for repair, replacement or upgrade options
    • Visual inspection of water pressure, water quality, proper exhaust venting and gas leak detection

    *Limit one coupon/offer per service

    Offer Expires

  • FREE Maintenance Package

    A $396 Value!

    1 Year Additional Bronze Maintenance Package with ANY New Water Heater or Tankless Install Package

    Bronze Package Tank Flush:

    • Provide a system flush
    • Installation of a new temperature pressure safety relief valve
    • Perform a gas leak inspection
    • Perform a venting inspection

    This will reduce calcium build up which will prolong your tank’s life and performance! Recommended annually by all manufactures.

    *Limit one coupon/offer per service

    Offer Expires

  • $299 Tankless Flush

    A $396 Value!

    $299 Tankless Flush Package

    We will:

    • Provide a system flush
    • Install a new temperature pressure safety relief valve
    • Perform a gas leak inspection
    • Perform a venting inspection

    This will reduce calcium build up which will prolong your tank’s life and performance! Recommended annually by all manufactures.

    *Limit one coupon/offer per service

    Offer Expires

Check Out What Others Are Saying About CastleWorks Home Services

CastleWorks Home Services
4.7
Based on 1096 reviews
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Dave d'ArtenayDave d'Artenay

01:25 08 Jan 23
He replaced a water heater and did a great job. He was very polite and cleaned up the area after completion. He was very accurate for the time needed to complete the job. He... explained everything before and after the job. Thanks!read more

Craig FalkenhagenCraig Falkenhagen

02:07 21 Oct 22
Gerardo arrived promptly, clearly explained the options we had for a new replacement water heater and then got to work on the installation. His courtesy and professional... demeanor were exemplary. We would gladly have him come back again. Thanks a million Gerardo! Perfect service and performance.read more

Jamie VargyasJamie Vargyas

18:30 24 Sep 22
Andras was courteous, efficient and very clean. He explained everything in detail and answered all my questions knowledgeably. Castle is top notch professional service. My... new go water heater comes with a 10 year warranty. Awesome work!!!read more

Chris ParraChris Parra

20:11 16 Sep 22
I would highly recommend this business. we had an emergency water heater leak, and they arrive to fix it very promptly within two hours. The technician, Julian Did a... fantastic job, explained everything that needed to be done, and did a great job. I highly recommend him and the company.read more

Jerry ShawJerry Shaw

22:48 28 Aug 22
They replaced our water heater and installed some new venting and water piping. Also, new valves. Julian was great at what he did as well as being a very nice person. The... company was somewhat pricey though, as I was charged $4,287.00 for the new equipment and installation. Also, I wasn’t given an itemized receipt, although I was told I could call the company and ask for one.read more

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Our Greater Los Angeles Service Area

We proudly serve the wonderful people of the Greater Los Angeles area including Agoura Hills, Alhambra, Altadena, Arcadia, Artesia, Avalon, Azusa, Baldwin Park, Bell, Bell Gardens, Bellflower, Beverly Hills, Brandeis, Buellton, Burbank, Calabasas, Canoga Park, Carson, Cerritos, Chatsworth, City of Industry, Claremont, Compton, Covina, Culver City, Diamond Bar, Downey, Duarte, El Monte, El Segundo, Encino, Fillmore, Gardena, Glendale, Glendora, Granada Hills, Hacienda Heights, Harbor City, Hawaiian Gardens, Hawthorne, Hermosa Beach, Huntington Park, Inglewood, La Canada Flintridge, La Crescenta, La Mirada, La Puente, La Verne, Lake Hughes, Lakewood, Lancaster, Lawndale, Littlerock, Lomita, Long Beach, Los Alamitos, Los Angeles, Los Angeles County, Los Olivos, Lynwood, Malibu, Manhattan Beach, Marina Del Rey, Maywood, Mission Hills, Monrovia, Montebello, Montrose, Moorpark, Mount Wilson, Newbury Park, North Hills, North Hollywood, Northridge, Norwalk, Oak Park, Oak View, Ojai, Oxnard, Pacific Palisades, Pacoima, Palmdale, Palos Verdes Peninsula, Panorama City, Paramount, Pasadena, Pearblossom, Pico Rivera, Piru, Playa Del Rey, Playa Vista, Point Mugu Nawc, Pomona, Porter Ranch, Port Hueneme, Port Hueneme Cbc Base, Rancho Palos Verdes, Redondo Beach, Reseda, Rosemead, Rowland Heights, San Dimas, San Fernando, San Gabriel, San Marino, San Pedro, Santa Barbara, Santa Fe Springs, Santa Monica, Santa Paula, Sherman Oaks, Signal Hill, Simi Valley, Somis, South El Monte, South Gate, South Pasadena, Studio City, Summerland, Sun Valley, Sunland, Sylmar, Tarzana, Temple City, Thousand Oaks, Topanga, Torrance, Tujunga, Universal City, Valley Village, Van Nuys, Venice, Verdugo City, Ventura, Walnut, West Covina, West Hills, West Hollywood, Westlake Village, Whittier, Wilmington, Winnetka, and Woodland Hills.

Los Angeles CastleWorks Office
28358 Constellation Rd Ste 698
Valencia, CA 91355