Discover O’Grady Plumbing
About Us
Who we are
O’Grady Plumbing is San Francisco’s multi-generational residential and commercial plumbing company. Learn more about our company below:
What We Do
Our team of Master plumbers builds, repairs, maintains and retrofits plumbing systems and equipment throughout San Francisco and San Mateo.
Why it Matters
Because plumbing — which is a basic and substantial part of everyday life — has a profound impact on our collective health, safety and welfare.
Why it’s Better
Unlike other plumbers, we own and maintain a complete line of plumbing service equipment and have the highest ratio of full-time Master plumbers on staff.
O’Grady Plumbing Family
O’Grady Plumbing Founded
O’Grady Plumbing was founded by Paul O’Grady. Paul O’Grady grew up in the plumbing business and is backed by three generations of plumbers who committed to running a reliable plumbing and drain service company.
Many aspects of older style plumbing trade work have been lost on new generations of plumbers and plumbing products. Far too often, newer plumbing products and services are manufactured and installed incorrectly by plumbers who simply do not know how to work around San Francisco’s unique plumbing environment. Here at O’Grady Plumbing, we not only take exceptional care of our customers; we also bring a tradition of service, reliability, professionalism, and integrity into your home or business that’s unmatched by another other Bay area plumber.
Our team consists of Master plumbers, a dedicated sewer department, and a number of other key support positions that ensure when you hire O’Grady Plumbing, you get what you paid for (namely, a qualified, well trained, efficient, reliable and honest service team that uses quality products and gets the job done right the first time).
Whether it is an emergency or a plumbing project you’ve been planning, you will always get a qualified service professional at your home or business every time you call O’Grady Plumbing.
Emergency Services
After Hours Emergency Services
- Service is available 24/7/365 with coordinated scheduling.
- We do not use an answering service.
- There is always a service technician available to provide services.
We’re On It!
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.
Business Hours
Office Hours
- Monday – Friday: 7AM – 9PM
- Saturday & Sunday: 7:30AM – 9PM
We specialize in proving fast and detailed plumbing services and solutions for all types of plumbing emergencies – including those below and above ground.
San Francisco’s plumbing largely dates back to the 1800’s with many challenges being discovered and solved for on a daily basis. At O’Grady Plumbing, we only send well qualified service technicians to your home or business, offering you the best solutions to your plumbing needs with a niche in understanding San Francisco and the surrounding towns local plumbing ad building codes.
The O’Grady Bunch
Meet The Team
There are many things that make us different from our competitors, including the fact that we own and maintain a complete line of plumbing service equipment and have the highest ratio of full-time Master plumbers on staff. O’Grady Plumbing was voted #1 on CitySearch! .We offer 60 Years of Experience. Our name is as good as the people we put in the field. Get to know our team of plumbers and support personnel below.
Matteo Rizzolo
Service Manager
Edy Mejia
Plumbing Technician
Jacob Solomon
Plumbing Technician
Omar Puerto
Plumbing Apprentice
Martin
Plumbing Apprentice