Renton Water Heater Installation


Fast Water Heater Company services all of Renton and the surrounding area. If you’ve woken up to the surprise of a leaking hot water heater or a cold shower, as long as you call by noon, we guarantee same-day service. Our hours are 7 a.m. – 8 p.m. Monday-Friday and 8 a.m. – 5 p.m. Saturday & Sunday.

We’re home-owners too and know emergencies don’t conveniently occur just during the week; we’re open seven days a week and don’t charge extra for weekend service calls.

We’re the water heater experts, and can service, replace or install electric or gas water heaters, standard tank or tankless models and even install hybrid heat pump systems in certain situations. Whether you need a repair, installation, general maintenance, you’re looking for codes or water heater rebates, we’re here to help and we offer free estimates without the hassle of a “trip fee” like most plumbing companies.

All our certified technicians are background-checked and have years of water heater experience before they ever step foot into your Renton home.

Try to find the model number and serial # of your water heater before you call so we can identify the age, warranty and any other pertinent information about your existing water heater. (This info can be found on a large sticker usually on the side of the water storage tank.)

Renton requires a permit for the installation of a hot water heater (this will not delay any work, just will schedule a safety inspection at a later date).

Local Water Heater & Plumbing Permits – Renton, WA 

Water Heater codes & Permits

You may be wondering, “Do I need a permit to replace my water heater in Renton?”

Currently, Renton does requires a permit for a water heater installation. The good news is we can pull the permit for you, and it will not slow down any work on our end.

Every few years, Renton water heater codes change to adopt new installation and safety measures. While intended to increase your overall home safety, these code requirements can result in extra installation charges.

Some customers scoff at the idea of paying for a permit for a water heater replacement, but the fact of the matter is water heaters can be dangerous if not installed correctly. In fact, water heaters cause more property damage than any other home appliance. And if the unit is not installed to code by a licensed professional and causes damage, your home insurance could reject any claims. That’s why we put a premium on safety and doing everything by the book.

Your expert technician will go over an item-by-item checklist of all applicable safety codes needed for your installation prior to any work being completed, or cost to you.

We try to keep this information as up-to-date as possible, but your local installer will be able to answer any specific question you may have.

Local Water Heater & Plumbing Permits – Renton, WA

Water Heater Codes Currently Enforced in Renton

  • Earthquake Straps: Given that Washington is a known earthquake zone, it is imperative that water heaters are tied down with approved earthquake straps, with one strap on the upper 1/3 of the water heater and 2nd strap on the lower 1/3 of the tank. Inspectors of Renton definitely aim to enforce this regulation.

    Approved Location: It is definitely not permitted to install gas water heaters inside bedrooms, closets or bathrooms unless they are direct vent or power-direct vent water heaters. Folks tend to spend a majority of time in these areas and therefore are at risk of potential carbon monoxide poisoning. In Renton, this item is rigorously enforced.

    Bonding: Gas and water pipes have to be bound with wire and clamps and thus grounded. When pipes are next to electrical wires, it is possible that the pipes can be become dangerously energized as a result of failing to ground your pipes. This is outlined in the Electrical Code and is generally enforced in Renton.

    Expansion Tanks: An expansion tank is required if a plumbing system is closed. This means the backflow, which normally runs between the house and the main water supply, is blocked. However, when water is heated, it expands, causing a rise in water pressure. The increased pressure must dissipate. If there is nowhere for the pressure to go, it places undue stress and strain on your water heater and your home’s plumbing system. Increased pressure will shorten the life of your water heater. However, expansion tanks provide relief from this excess water pressure and, therefore, Renton inspectors do tend to enforce their installation.

    Venting: Carbon monoxide is one of the by-products of the functioning of most water heaters. Thus, heaters must be sufficiently vented, with vents comprised of non-flammable materials, to avoid health risks to homeowners.

    Pans and Drains: It is sometimes the case that water heaters are installed on platforms or in internal areas, where spills can potentially cause damage to the home. In these situations, it is compulsory, according to the Code, that pans, with drain lines, are put underneath the heaters.

    Pressure Regulating Valves: Extreme water pressure, measured by a PSI higher than 80, is hazardous to the successful and prolonged functioning of your plumbing and water heater. Thus, the Code maintains that pressure regulating valves must be installed in such cases where the pressure is greater than 80 PSI. We will measure your PSI and inform you of the appropriate action to take.

    Greasepack Gas Valve Replacement: Given the tendency of gas valves of the greasepack kind to function incorrectly, we will have to replace any that you have.

    Sediment Traps: Inspectors usually check to make sure that you have a sediment trap installed on your gas line in order to stop sediment from reaching the combustion chamber.

    Dedicated Water Shutoff: Installing a shutoff, dedicated only to the water heater, means that you can turn off your heater and simultaneously access your home’s normal supply of water. This part of the Plumbing Code is usually enforced in Renton.

    Pipe Insulation: It is mandatory that pipes in unconditioned spaces be covered with pipe insulation.

Renton Installations

With more than two decades experience, we have installed countless water heaters in single-family homes, condos, apartments, mobile homes and townhouses all over Renton. All our skilled-technicians are background-checked, thoroughly experienced and trained to efficiently and safely install your new water heater.

Whether you’re replacing a broken, old unit, being proactive and installing a new model, or switching to a tankless water heater, our skilled technicians can answer any of your questions and, if you call by noon, get your hot water heater installed the same day you call us.

Most importantly, our technicians are local to the area, which means they are up-to-date on all local plumbing codes, safety regulations and regional installation trends.

We install Rheem water heaters, and are an official service provider for Renton.

We look forward to helping you. Please keep in mind, while we can quote you a starting price over the phone, we are not able to give a final price until a technician is at your home and can see your unique setup. If you’re happy with the final price, your technician will get to work immediately. But due to this uncertainty, our appointments are no cost and no obligation.

Call us or fill out the form below to receive more information about a water heater replacement or installation in Renton.

Renton Water Heater repair

Water heaters are one of the hardest-working appliances in your home, heating and storing hot water for your use. They’re built to last, but if yours starts leaking or stops producing hot water, your water heater may need repairs or service.

Typically, a water heater comes with a warranty anywhere from 5-15 years on parts. For this reason, if you start experiencing issues, you should find the model & serial numbers of your water heater to find out if it is still under warranty. Our service technicians are local to Renton and are familiar with most regional heater applications, brands and models.

It’s important to note, if your existing model is more than 10 years old, it’s probably nearing its last legs. Considering the cost of labor, it might be cheaper in the long run to just replace the water heater.

In Renton, common repairs and maintenance our technicians experience with residential water heaters include:

    • Replace the thermocouple – Sometimes a fix is as simple as one small part. This is often the case when a water heater isn’t heating water; typically it just needs a replacement thermocouple, which allows the heater to take in gas.


    • Replace the anode rod – Over time, the minerals in your water and pressure in your tank will cause corrosion of your water heater. Anode rods prevent tank corrosion because they attract the corrosive elements, keeping them away from the storage tank. The installation of dual anode rods, or a replacement can extend the life of your heater.


    • Pilot light – This simple mechanism is also responsible for lots of water heater repairs. Sometimes the light can simply go out and just needs to be re-lit. Other times, the assembly has failed and must be replaced.


  • Drain storage tank – Some newer water heaters have self-cleaning tanks, however, older ones need to be manually drained to prevent a sediment build-up. If you fail to drain the sediment, eventually the mineral deposits will collect and shorten the useful life of your water heater.

Rebates and Specials

Fast Water Heater Company frequently partners with utility companies around Renton to offer savings on more energy efficient water heating solutions, in the form of rebates.

These rebates are great because the water heaters utilize energy more efficiently, and save you money as a result.

  • Puget Sound Energy (PSE) Water Heater Rebates:
    • Converting to a Natural Gas Water Heater: PSE offers a rebate of $950 to convert from an electric to a natural gas water heater.
      • The new gas water heater must have an efficiency rating of .67 or higher.
    • Tier 1 Energy Star Heat Pump Water Heaters: PSE offers a $500 rebate on a Tier 1 Energy Star heat pump water heater (AirGenerate)*
    • Tier 2 Energy Star Heat Pump Water Heaters: PSE offers an $800 rebate on a Tier 2 Energy Star heat pump water heater (GE/Rheem)*
    • Tier 2 Electric Heat Pump Water Heaters: AirGenerate offers a $500 rebate on a Tier 2 AirGenerate electric heat pump water heater. Must be installed by an approved contractor. Click here for more info.
    • High Efficient Storage Tank Electric Water Heaters: PSE offers a $50 rebate on electric water heaters with an efficiency rating of .95 or higher.
      • *Must be installed outside a conditioned living space, such as in a garage, attic or crawlspace
    • Learn more about PSE Water Heater Rebates.

Customers in Southern Washington may also be eligible for Energy Trust of Oregon rebates. Ask your customer service representative if you qualify for the rebates in your area.

    • Cascade Natural Gas
      • Condensing High-Efficiency Natural Gas Tankless Water Heater: Cascade Natural Gas offers a $150 rebate on condensing natural gas tankless water heaters with an efficiency rating of .91 or more.
      • Storage Tank High-Efficiency Natural Gas Water Heater: Cascade Natural Gas offers a $40 rebate on gas water heaters with an efficiency rating of .64 or more.
        • Only available for Washington customers with Cascade Natural Gas on rate schedule 503.
      • Learn more about Cascade Natural Gas rebates.


  • Seattle City Light Water Heater Rebates
  • Cowlitz County PUD
    • High Efficiency Electric Water Heaters: Cowlitz County PUD offers a $25 rebate on electric water heaters with an efficiency rating of:
      • .94 or greater for a 25-44 gallon water heater
      • .93 or greater for a 45-74 gallon water heater
      • .92 or greater for a 75-99 gallon water heater
      • .85 or greater for a 110-119 gallon water heater
    • Heat Pump Water Heater: Cowlitz County PUD offers a $300 rebate for 50-60 gallon heat pump water heaters.
    • Heat Pump Water Heater: Cowlitz County PUD offers a $500 rebate for an 80 gallon heat pump water heater.
    • Learn more about Cowlitz County PUD Water Heater Rebates

Contact your local rep now!