Plumbing-101-Basics-Tips
Plumbing
BASICS AND TIPS
This section of our website – San Francisco Plumbing 101: Basics and Tips is designed to give you an overview of common plumbing challenges and how to troubleshoot them yourself without a plumber. We recognize that not every plumbing problem requires hiring a top-rated plumber like O’Grady Plumbing.
Listed below are common plumbing problem categories for you to assess and solve some of your plumbing issues yourself. Within each category are troubleshooting options for you to consider.
To get started, click on any of the topics below:
Clogged Drains
Bathroom sinks, toilets, kitchen sinks, washing machines, and main sewer lines are all forms of drains. A whole inventory of items can cause these to clog.
Faucets and Sinks
New faucets have internal stop valves, and almost all faucets have a removable cartridge that slides in and out. The manufacturers logo is required to identify the specific replacement cartridge.
Garbage Disposals
If your garbage disposal stops working, it usually means there is a blockage. Find solutions and recommendations to prevent future problems.
Troubleshooting a Leak
Leaks are one of the most common plumbing problems that develop. There are two categories of plumbing leaks: water supply (pressurized leaks), and drain line (non-pressurized leaks). […]
Toilets
Toilet design has undergone significant changes since the introduction of the low-flow toilet in 1994. We have gone from using 3.5 gallons per flush in the 1980′s, to 1.28 gallons per flush in 2014.
High and Low Water Pressure
Not all water pressure problems are created equal. While understanding how to minimize wear-and-tear is tricky business, it can be done on your own.
Water Heaters
Water Heaters come in a variety of different styles, from gas to electric. If your heater pilot will not stay lit, or if water is exiting out of the pressure relief valve, then you definitely have a concern to address.
Preventative Maintenance
A solid preventative maintenance plan is critical for any home or business owner to avoid future plumbing emergencies. Find info on how to create a plan.
Reach Us By Phone
If none of these areas addresses your plumbing emergency or challenge, give us a call. We’ll be happy to send one of our Master plumbers to your home or office!
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Emergency Services Available – 30 Minute Response Time.
How much does it cost to replace a 50-gallon water heater?
The cost of replacing a 50-gallon hot water heater typically ranges from $850 to $3,600 nationally in 2025. Most customers spend around $2,700 to replace a 50-gallon gas hot water heater with the same type. For a 50-gallon electric hot water heater in an accessible location, you're looking at approximately $900. If you want a high-efficiency 50-gallon gas model with upgrades installed in a difficult-to-access location, costs can reach up to $4,800.
What is the life expectancy of a water heater?
The lifespan of a water heater varies by type. A traditional tank-style hot water heater typically lasts 10 to 15 years with proper maintenance. Tankless water heaters generally have a longer lifespan, often exceeding 20 years. Regular maintenance, such as draining the tank to clear sediment, can help extend the life of your water heater.
Should I get a 40-gallon water heater or a 50-gallon water heater?
This decision depends primarily on your household size and hot water needs. Generally, a 40-gallon tank works well for households with 1-2 people and is more cost-effective and energy-efficient for smaller families. A 50-gallon tank is better suited for households with 3-5 people where multiple hot water activities might occur simultaneously. Consider your daily routines—if family members take consecutive showers while running the dishwasher or washing machine, the larger tank would be beneficial. Also consider physical space constraints and energy costs. If you're consistently running out of hot water with your current tank, sizing up is usually wise. For the most accurate recommendation, have a plumbing professional assess your specific hot water demands.
How much does it cost to put in a 40-gallon water heater?
Standard 40-gallon water heaters range in price from $400 to $1,800 for the equipment alone. When you include installation costs, the total price typically falls between $950 and $3,000 in 2025. A 40-gallon water heater is usually sufficient for a two-person household and can be a cost-effective option for those on a budget.
How long does it take a plumber to replace a water heater?
The installation time varies depending on the type of unit, the size of your home, and any complications that arise. Generally, professional plumbers can complete a water heater installation in two to three hours if there are no problems or obstacles. The process includes consultation, removing the old heater, and installing the new one, which involves connecting it to electrical or gas sources and making necessary adjustments.
Why is installing a water heater so expensive?
Water heater installation is expensive due to several factors. The process is complex and requires special tools and equipment. Labor costs are high because of the technical expertise needed. California has numerous code requirements that must be met for proper installation. Additionally, the cost of materials, including the water heater itself, can be substantial. Other factors that affect cost include mounting requirements, piping needs, tank removal, potential carpentry work, and the possible need for an expansion tank, which ranges from $50 to $180.
Can I replace my 40-gallon water heater with a tankless water heater?
Yes, you can replace your 40-gallon tank water heater with a tankless model. The cost typically ranges from $2,400 to $4,200 for the entire project, including the unit and installation. Tankless water heaters are more energy-efficient because they only heat water when needed, which can lead to significant savings on energy bills. They also tend to have a longer lifespan than traditional tank water heaters. However, consult with a qualified plumbing professional to ensure your home's electrical and plumbing systems are compatible with a tankless water heater.