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Clean Drinking Water Systems & Reverse Osmosis Installation in the East Bay, Call Today!
Drinking Water Specialists Serving East Bay Homes Since 2020

Cleaner, Better-Tasting Drinking Water for Your Home

ThankYouWater specializes in reverse osmosis and under-sink drinking water systems for East Bay homeowners, providing expert installation, maintenance, and honest guidance to help families enjoy cleaner, better-quality water at home.

Get a QuoteCall Or Text Us: (510) 674-0482

5.0 (10)
a hand holding a glass of water
Contemporary kitchen design with stainless steel appliances and granite countertops.
Sleek modern kitchen with neutral tones and stainless steel appliances.
person holding stainless steel faucet

Founder Message

ThankYouWater is an owner-operated drinking-water company serving East Bay homes and families. We provide personal guidance, careful workmanship, and long-term support for reverse osmosis and under-sink drinking-water systems. Our approach is simple: as we grow, we maintain the same standard of care that defines us today.

Yevgeny personally works with homeowners to understand their drinking-water needs and recommend solutions tailored to each home. Whether you need reverse osmosis installation or support for your under-sink drinking-water system in the San Leandro area, ThankYouWater is here to help. Contact us to learn how clean, filtered drinking water can make a difference for your family.

Our Services
Reverse Osmosis InstallationReverse Osmosis Service and Leak ChecksFilter Replacement and Preventive MaintenanceAnnual Preventive MaintenanceUnder-Sink Water Filter InstallationMineral Alkaline Cartridge ReplacementCountertop DrillingDrinking Water System Guidance and Water Quality Education

Areas We Serve

San Leandro, CA
Oakland, CA
Alameda, CA
Berkeley, CA
Emeryville, CA
Piedmont, CA
Hayward, CA
Castro Valley, CA
San Lorenzo, CA
Union City, CA

Recommended Systems

Products

Why Choose Us

Expert water filtration

We install, maintain, and repair reverse osmosis and under-sink drinking-water systems for East Bay homes and families.

Fast, reliable service

We respond quickly to water filter installation and repair requests in the San Leandro area so you get purified water when you need it.

Serving East Bay Homes & Families

ThankYouWater is your trusted Drinking Water Specialist serving East Bay homes and families.

★★★★★

5.0 out of 5

Based on 10 reviews across Google and Thumbtack of ThankYouWater

See our reviews on Google →

What Customers Say

We had a great experience working with Yevgeny. Before finding him, we had a couple of other companies come out to look at our water filtration system because we had almost no water coming through. They spent very little time diagnosing the issue and immediately told us we needed to replace the entire system without really investigating the problem.

Jeff Wyrsch

I’ve known Yevgeny for at least seven years, and it has truly been a pleasure working with him. He has been maintaining our drinking water system every year, always reminding us when it’s time to change the filters so we never have to worry about it.

bessamemucho

I’ve trusted Yevgeny with servicing my reverse osmosis drinking water system for several years, and every visit has been a great experience. He’s always punctual, professional, honest, and takes the time to make sure everything is working perfectly before he leaves. During his most recent visit, I mentioned that my old garbage disposal had started leaking.

Viktoriya Klyushnik

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Our Recent Work

See the water filtration systems, reverse osmosis installations, and drinking water solutions we've completed for San Leandro families and homes.

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Location map
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Contact Us

Have questions about your water or want to plan a new system?

Working with us

How it works

Reach out

Tell us what you need by phone, text, or the quick form on this site.

We assess and plan

We review the details, answer your questions, and schedule a time.

We do the work

We show up on time and do the job right.

You're satisfied

We make sure you're happy with the result before we call it done.

Frequently Asked Questions

Why is reverse osmosis the most popular drinking-water system you offer?

Reverse osmosis is popular because it can reduce many dissolved solids and provide convenient, better-tasting drinking water from a dedicated faucet. RO systems require periodic filter replacement, membrane maintenance, sanitization, and inspection. The correct maintenance schedule depends on the system, water conditions, usage, and manufacturer recommendations.

What is the difference between basic filtration and reverse osmosis?

Basic filtration commonly uses sediment and activated-carbon filters to reduce particles, chlorine, odors, and certain other substances. Reverse osmosis adds a semipermeable membrane designed to reduce many dissolved solids. Actual performance depends on the system, filter condition, incoming water, maintenance, and applicable product certifications.

How often should RO filters be replaced?

RO filter replacement schedules depend on the specific system, water conditions, usage, and manufacturer recommendations. Regular filter replacement helps support proper system operation and maintenance. During service, we can evaluate your system and recommend the appropriate maintenance schedule.

How do I know whether my RO membrane needs replacement?

Signs that an RO membrane may need attention can include changes in system performance, slower production, or changes in measured TDS levels. Membrane condition depends on the system design, incoming water, usage, and maintenance history. We can evaluate your system and provide guidance based on its condition.

Why is my RO faucet producing water slowly?

Slow flow from an RO faucet can be related to several factors, including filter condition, membrane condition, water pressure, storage tank condition, or other system components. We can inspect your system to identify possible causes and recommend the appropriate service.

Why is my storage tank not filling correctly?

A storage tank that is not filling properly may be related to factors such as system pressure, filter condition, tank condition, or other component issues. We can evaluate your drinking-water system and help determine the next steps.

See all questions

We’d love to help you find the right drinking-water solution for your home.

Contact us to discuss your system, service needs, or a new reverse-osmosis installation

Book serviceCall (510) 674-0482