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Alligator Plumbing
At Alligator Plumbing in Castro Valley, we take pride in …
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Local businesses in Castro Valley, CA
Plumbing projects in Castro Valley are easier when you know who is actually available. GigoPro shows 42 active providers across 13 service types.
Open any category to see full listings for Castro Valley, sorted by relevance and rating. New businesses join the platform regularly.
Verified pros in Castro Valley, CA
These are today's standout plumbing providers in Castro Valley — businesses and independent pros with real ratings and up-to-date availability.
New plumbing businesses join GigoPro in Castro Valley often. Bookmark this page or explore Plumbing, Electrical, and House Cleaning when your needs change.
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ASAP Plumbing & Water Heater
In Castro Valley, we are ASAP Plumbing & Water Heater, …Details -
Proper Plumbing Services
At Proper Plumbing Services in Castro Valley, we specialize in …Details -
Baek’s Plumbing & Rooter
At Baek's Plumbing & Rooter in Castro Valley, we specialize …Details -
Absolute Plumbing
At Absolute Plumbing in Castro Valley, we understand the frustration …Details -
Castro Valley Plumbers
In the heart of Castro Valley, we are more than …Details -
Simply plumbing and Rooter
At Simply Plumbing & Rooter in Castro Valley, we're your …Details
Plumbing feedback from Castro Valley residents
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Brian Hill
Made an appointment, the company gave me a two hour window. At the end of the two hours, I had to call and ask where the plumber was. I was told they had something come up and it would be another hour. I figured fine and went to grab a bite to eat. They called while I was driving to say they had a tech ready. By the time I got home and called back, they sent him somewhere else and told me I would have to wait at least ANOTHER hour. Don’t use this company of your time is valuable! One star for wasting my entire afternoon!!
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Anne Forte
We had a kitchen plumbing emergency the night after Thanksgiving. We found Bill's info on the internet and phoned him at about 5pm; he was able to come and fix our sink and drains the very next morning at 8am. He was prompt, professional, skilled and quick! Within 30 minutes, he had everything back in order. Thank you Bill!
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Wendy Jemo
Mr. Kollias was wonderful. He arrived in 30 minutes, on a Sunday no less, and fixed my badly clogged bathroom sink in about 30 minutes. This was in spite of the fact that I had made it worse by trying to fix it myself. He then went on to fix a problem with a toilet flapper that I told him about after he fixed the sink. Both problems were fixed for the amount he initially quoted on the phone for just the sink. Mr. Kollias is very professional and lovely to deal with. I will recommend him to anyone I know who needs a plumber. I'm a very happy customer!
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Zig Zichterman
The faucet in my shower broke. Nothing but cold water. Clogged cartridge after 13 years of daily use. Bill Kollias of Absolute Plumbing came out right away and had it replaced and working again in about half an hour. Sure is handy having a trustworthy plumber live just up the street. Bill will be the first person we call next time we have any plumbing work, big or small.
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cody yochum
Had Bill out today to fix our leaking pipes behind the wall. He gave us a fair estimate and was honest about the potential cost. He fixed the leaking pipe very fast and did a great job. He was very professional and on time as well, skills our last plumber was severely lacking. We will definitely be doing business with Bill again in the future.
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Jaime Martinez
Timely manner service and very professional
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Heidi Hausauer
THIS BUSINESS IS NOT AT THIS LOCATION.
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Fahadaa
Do not call. It's a someone's personal number. Business is closed.
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Zelda Penton
They are responsive and very competent!
Stats for Castro Valley
Plumbing and more in Castro Valley: GigoPro currently lists 42 active businesses across 13 categories.
Numbers update often — use the breakdown below to jump straight into Plumbing, Electrical, or any other category in Castro Valley.
Top pros in Castro Valley
In Castro Valley, California, you'll find top pros in plumbing, electrical work, house cleaning, HVAC, and landscaping. Whether you need a plumber to fix leaks, an electrician to install fixtures, or someone to clean your home or maintain your air ducts, GigoPro connects you with local experts ready to help.
Verified Plumbing in Castro Valley, CA
We show only active businesses that pass moderation. Results are specific to Castro Valley and nearby service areas, and inactive profiles are removed to keep the list current.
Real reviews for plumbing
Ratings and reviews come from customers who used the service. Compare plumbing pros in Castro Valley by experience, responsiveness, and value before you reach out.
Local-first search in Castro Valley
Filter by city and category, check locations on the map, and find providers close to home or work. Listings are refreshed regularly — September 2026.
Castro Valley, CA is where you'll find a mix of skilled tradespeople ready to serve your home needs, from plumbing and electrical work to house cleaning and landscaping.
What you can find in Castro Valley
Plumbers handle everything from fixing leaky faucets to replacing old pipes. Electricians install wiring for outlets, lights, and major appliances like air conditioners. House cleaning services offer thorough deep cleans or one-time spot treatments depending on your needs. HVAC technicians maintain heating systems, coolers, and ventilation units, ensuring they operate efficiently. Landscapers transform outdoor spaces with plants, shrubs, and decorative features to enhance curb appeal. Appliance repair experts fix issues ranging from broken refrigerators to malfunctioning dishwashers.
Local services like bathroom remodeling include updating fixtures, tiling, and plumbing to give your space a new look. Air duct cleaning helps maintain indoor air quality by removing dust and debris from the ventilation system, improving efficiency and comfort in your home.
How the listings work
To find the right provider for you, simply browse through our directory of local professionals. Each listing includes a brief description of services offered, ratings from previous customers, and contact information like phone numbers and email addresses. Take note of the trade type to ensure it matches your project requirements. Our listings extend beyond Castro Valley to cover nearby cities like San Lorenzo, San Leandro, and Hayward, giving you access to more providers if needed.
Review the services offered by each provider before contacting them. This will help you make an informed decision based on what best suits your needs. Look for any recent reviews or testimonials that can give you a sense of their quality of work. If you're unsure about a particular trade, don't hesitate to reach out and ask questions before making a choice.
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Frequently asked questions
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Is GigoPro free to use?
Yes. Browsing businesses, reading reviews, and comparing plumbers is free for everyone. Business owners can create a basic listing at no cost.
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How do you verify businesses on GigoPro?
Every profile goes through moderation before it appears in search. We check that the business is real, actively operating, and actually performs the work it claims. For regulated trades, we look for proper credentials, and we automatically hide inactive listings.
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How do I choose the right plumber?
Start with ratings and recent reviews, then confirm the company performs your specific type of work and serves your area. Contact two or three providers, ask for written estimates, and compare what each quote includes, not just the bottom line.
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Can I list my business on GigoPro?
Yes. Create a free business profile to reach local customers searching for your category. You can update services, photos, and contact details anytime, and customers can book you directly from your profile.
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How often is the directory updated?
Business owners update their own profiles. Our team also refreshes hub pages and removes inactive listings to keep search results current. This page, for example, is reviewed and updated monthly.
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Repair or replace my water heater — how do I decide?
Ask each plumber for both a repair quote and an honest assessment of the unit's remaining life. As a general rule, if the repair costs more than half the price of a new unit, or the tank is past its expected lifespan and leaking, replacement is usually the better value. Get two or three opinions before a decision this large.
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Do plumbers provide written estimates or flat rates?
Reputable plumbers give written, itemized estimates after diagnosing the problem — and many quote flat rates for common jobs like drain cleaning or fixture repair. Always ask whether the quote is flat-rate or time-and-materials, and whether the diagnostic fee is credited toward the repair.
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Are plumbers on GigoPro licensed and insured?
Licensing and insurance requirements vary by state and by type of work - especially gas and sewer work. Ask each plumber for their license number and proof of insurance before work begins. Professional companies expect these questions and answer them without hesitation.
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How much does plumbing service cost?
Costs vary by job type, region, and time of day — there is no honest single number. Reputable plumbers give written estimates after diagnosing the problem, and comparing two or three of them is the best way to understand what your job should cost.
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Can I leave a review after booking through GigoPro?
Yes. After your job is done, you can rate the plumber and describe your experience. Verified reviews from recent jobs help the next homeowners in your city choose well — and keep listed professionals at their best.
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