4.9/5 — 2,000+ Five-Star Reviews
Kitchen Sink Installation
Bay Area's #1 Choice
Kitchen sink installation from United HVAC, Plumbing & Electrical covers everything from a straightforward drop-in swap to a full undermount sink. Homeowners in San Jose, Cupertino, and Sunnyvale call us for new kitchen sink installation whether they’re remodeling, upgrading their fixtures, or replacing a cracked, leaking, or outdated sink. We have some specialists who are great in kitchen sink installations and do 1-2 projects a week.
- 25+ Years
- Licensed & Insured
- 24/7 Emergency
- No hidden costs
- Same-day service
- Fully licensed and insured
- 6000+ completed jobs
4.9/5 Rating
2,000+ Reviews
Licensed & Insured
CA Licensed
Same-Day Service
24/7 Emergency
25+ Years
Bay Area Experts
6,000+
Jobs Completed
Simple Process
How It Works
Call Us 24/7
Reach us anytime at
(408)539-6936.
Same-Day Dispatch
A licensed technician arrives at your home, often same day.
Diagnose & Fix
Upfront pricing before work begins. No hidden fees, ever.
100% Satisfaction
We stand behind every job with our satisfaction guarantee.
What Is Professional Kitchen Sink Installation and When Do You Need It?
Professional kitchen sink installation means removing your existing sink, adjusting or extending plumbing connections as needed, and setting a new sink so it seals correctly against your countertop and drains without leaks. It’s warranted when a sink cracks, rusts, drains slowly despite clearing the trap, or when a remodel or countertop replacement calls for a different sink style or mounting type.
Types of Kitchen Sinks We Install
Our plumbers install drop-in (top-mount), undermount sinks in single, double, and workstation configurations. Drop-in kitchen sink installation is the most common replacement job because it works with existing countertop cutouts in most cases. Undermount and farmhouse sinks usually involve more countertop and cabinet work, which we’ll walk through during the assessment.
Signs It’s Time to Replace Your Kitchen Sink
Honestly, each client decides by himself when to install a new sink. Chips, hairline cracks, chronic staining, or a basin that no longer sits flush against the counter are the clearest signs a sink needs replacing rather than repairing. Persistent leaks under the cabinet, corroded strainer baskets, or a sink that predates a countertop upgrade also point to replacement. Many older Bay Area homes still have sinks original to the house, and the mounting hardware alone is often past its service life.
Kitchen Sink Installation: How the Process Works
Kitchen sink installation starts with an on-site assessment of your cabinet, countertop, and existing plumbing, followed by removal of the old sink and installation of the new one with fresh supply lines, drain connections, and a tested seal. Most standard drop-in replacements are completed in a single visit.
Pre-Installation Assessment
Before removing anything, we check the drain rough-in depth, supply line condition, and countertop cutout dimensions against the new sink’s specs. This step matters most in older homes throughout Palo Alto and Belmont, where drain heights and pipe materials often don’t match current standards. Catching a mismatch here avoids delays once the old sink is already out.
What Happens on Installation Day
We disconnect and remove the existing sink, prep the cutout or cabinet as required, and set the new sink with the appropriate clips, adhesive, or mounting brackets for its style. Supply lines, the P-trap, and the garbage disposal connection get reinstalled or replaced, and we run water through every line to check for leaks before calling the job finished.
Kitchen Sink Installation Cost in the Bay Area
Kitchen sink installation cost in the Bay Area typically depends on the sink style, the condition of existing plumbing, and whether the countertop needs modification. A straightforward drop-in kitchen sink installation costs less than an undermount or farmhouse conversion, since the latter often require countertop cutting or cabinet reinforcement.
Factors That Affect the Final Price
Sink material and weight, the number of basins, faucet hole configuration, and whether the garbage disposal needs replacing all factor into the quote. Undermount sinks on granite or quartz counters — common in Saratoga kitchens we’ve worked on — require precise cutout tolerances, which adds labor time compared to a same-style drop-in swap. We price every job with a flat rate before work begins, not an hourly estimate that can shift once the cabinet is open.
What’s Included — and What Costs Extra
Standard installation includes removal and disposal of the old sink, new supply lines, drain assembly, and a full leak test. Countertop modification, cabinet reinforcement for a farmhouse sink, new faucet installation, or garbage disposal replacement are quoted separately since they depend on what we find during the assessment. We walk through every line item before starting so there’s no surprise on the invoice.
Why Bay Area Homeowners Choose United HVAC, Plumbing & Electrical for Kitchen Sink Installation
Bay Area homeowners choose United HVAC, Plumbing & Electrical for kitchen sink installation because of licensed, insured local plumbers, over 25 years of regional experience, and same-day scheduling with flat-rate pricing set before any work begins.
Licensed, Insured, and Local
Every plumber on our team holds a California plumbing license, which means the sink installation, drain work, and any disposal reconnection meet code requirements a homeowner’s insurance will recognize. Being insured also means that if a countertop or cabinet is damaged during the job, the cost of repair is covered rather than passed on to you.
25+ Years Installing Kitchen Sinks Across the Bay Area
We’ve installed sinks in homes ranging from mid-century houses in Campbell and Los Gatos to new builds throughout Milpitas and Menlo Park, which means we’ve worked around most drain rough-in quirks, cabinet configurations, and countertop materials the region has to offer. Our supervisors and best installers have 25+ years of hands-on experience. That history shows up in how quickly we can diagnose a mismatch between an old drain line and a new sink before it becomes a bigger job.
Same-Day Service With Upfront Flat-Rate Pricing
Not that many kitchen sink installation service calls are scheduled and completed the same day. Normally you would need an estimate first.
Replacing a kitchen sink in the Bay Area? Call United HVAC, Plumbing & Electrical at (408)539-6936 — we bring the tools, handle the hookup, and leave no mess behind.
100% Satisfaction Guarantee
If you're not completely satisfied with our work, we'll come back and make it right — free of charge. That's our promise to every customer.
Signs You Need Kitchen Sink Installation
- Water seeping through the seal between sink and counter
- Rusty or chipped basins that are hard to keep clean
- Incompatible sink depth for new disposal units
- Persistent odors coming from under-mount seams
- Cracked porcelain or scratched stainless steel surfaces
Why Choose United HVAC
- 25 years of experience
- Same-day service
- 1+ year warranty
- 6000+ completed jobs
- 0% interest financing and discounts
- Fully licensed and insured
- Well reviewed and highly trusted
- No hidden costs
- We work 365 days a year
Got Questions?
Frequently Asked Questions
A drop-in sink rests on top of the countertop with its rim visible, while an undermount sink attaches beneath the counter for a flush, seamless look. Drop-in installation is generally faster and less expensive since it doesn't require precise countertop cutout work. Undermount sinks need a countertop rated for the mounting method, which usually means stone or solid-surface material.
Not always — if your current disposal is in good condition and the new sink's drain opening matches, we can often reconnect it. Older disposal units or a mismatch in basin depth sometimes require a new unit or an extended drain assembly. We'll tell you which applies once the old sink is off.
This usually points to a failed adhesive bond or clips that have loosened over time, letting the sink shift slightly from the countertop. It's a common issue in older undermount installations and one we see often on service calls. Left alone, it can lead to water intrusion under the counter, so it's worth addressing before it worsens.
Yes, it is possible if the new sink matches the existing cutout size. We can typically complete the swap without cutting the stone. But if you're switching from drop-in to undermount, or changing basin dimensions, some cutout modification is unavoidable, and we'll explain exactly what that involves before starting.
Related Services
Other Plumbing Services
Leak Detection
Advanced leak detection technology to locate hidden leaks and prevent water damage.
Water Pipe Repair
Expert water pipe repair and replacement to restore your plumbing system.
Faucet Installation
Professional faucet installation and replacement for kitchens and bathrooms.
Kitchen Sink Installation
Complete kitchen sink installation including plumbing connections and fixtures.
Shower Repair & Replacement
Shower repair and replacement services including valves, heads, and enclosures.
Toilet Installation & Repair
Toilet installation, repair, and replacement for all makes and models.
Gas Line Repair & Installation
Licensed gas line repair, installation, and leak detection for safety and compliance.
Reverse Osmosis System Installation
Under-sink and whole-home reverse osmosis system installation for clean drinking water.
Explore Our Other Services
Heating & Air Conditioning
10 services available
Plumbing Services
9 services available
Drain & Sewer
4 services available
Water Line / Repiping
4 services available
Water Heating & Filtration
4 services available
Electrical Services
6 services available
Posted on Google Omied LeleTrustindex verifies that the original source of the review is Google. Pasha (technician) was very helpful. We had a clogged drain and were unable to clear it ourselves. He arrived and fixed the drain and was very clean and polite. Left everything as it was before he arrived. Highly recommend.Posted on Google Liang KatherineTrustindex verifies that the original source of the review is Google. Fantastic service! We really enjoyed working with United plumbingPosted on Google Natalia ShreveTrustindex verifies that the original source of the review is Google. Pasha was very professional he gave us a couple of options and finished the plumbing job very quicklyPosted on Google Just JaniceTrustindex verifies that the original source of the review is Google. As a busy homeowner I truly appreciate their ability to work around my schedule and needs. My garbage disposal recently died, and Neo was professional and offered my different options. He had the parts I needed and was able to complete the job quickly and cleanly.Posted on Google Chaozhong LianTrustindex verifies that the original source of the review is Google. I wholeheartedly recommend United HVAC, Plumbing & Electrical. I recently hired them to replace the original 1961 HVAC ductwork in my house, and they did a wonderful, extremely professional job. I am beyond satisfied with the results. You don't just have to take my word for it--I actually took pictures of their completed work, uploaded them to Google Gemini, and asked the AI to evaluate the installation. Even the AI praised their work, calling it a "top-tier, textbook installation"! (See the screenshots below). During the bidding process, I compared United with another company. United's quote was slightly higher, but choosing them was absolutely the best decision. Their program manager, Tim, was incredibly easy to work with. He quickly identified asbestos tape on my 1961 ducts and insisted we use a C-22 licensed abatement company to remove it safely and provide all the legal documentation for future reference. The other company offered a cheaper route by doing the removal themselves, but for something as dangerous as asbestos, doing it by the book is well worth the minor price difference. I also want to give a massive shoutout to Bair (Bayar) for his exceptional craftsmanship. He is easy-going, friendly, and really listened to all of my concerns. He provided great recommendations on how the new ductwork should be organized, and actually used a machine to fine-tune and balance the air pressure throughout the house. To top it all off, he even carefully reorganized the insulation in my attic after the work was done! It's this kind of attention to detail that makes them stand out. The pictures speak for themselves. If you want true professionals who care about safety, honesty, and quality craftsmanship, go with United HVAC.Posted on Google Chaozhong LianTrustindex verifies that the original source of the review is Google. I highly recommend United HVAC, Plumbing & Electrical! From start to finish, the entire process was incredibly smooth. They handled all the permits and inspections throughout the project, which gave us complete peace of mind. Every single technician we interacted with was friendly, approachable, and truly easy to work with. I specifically want to give a massive shoutout to Max (Aiusha) and Rinat for their wonderful work. Max is super professional and highly skilled. He installed my water heater and water softener with absolute "military precision." I'm the kind of guy who has a lot of weird, specific ideas about how pipes should be routed and extra gadgets I want installed to monitor the system, and Max handled all my requests with total ease. I am also super paranoid about plumbers plowing through studs or structural beams in my 1961 house, but Max was extremely careful and treated my home's structure with the utmost respect. Rinat is also a fantastic plumber. He installed a PRV, a Moen Flo auto-shutoff valve, an RO system, and even replaced some of the old sewage pipes in my house. He really listened to all of my requests and finished the job quickly and professionally. I highly recommend him! Because of their wonderful service, I’ve officially signed up for their company's membership. I am currently working with them to redo my HVAC ductwork, and I will definitely leave another review for that project once it's done. I'm sure they will do a wonderful job there, too!Posted on Google Ritesh BediaTrustindex verifies that the original source of the review is Google. Great service. Loved the professionalism and the way fixed my plumbing problem. I would call them again.Posted on Google Ginger PerngTrustindex verifies that the original source of the review is Google. We had to replace the wax ring on our toilet. Scheduling was easy; pricing was fair (much cheaper than the other quote we got!) Our technician, Melvin, was polite and expedient. This is our second time using United and highly recommend for gas and plumbing services.Posted on Google Joseph MartinTrustindex verifies that the original source of the review is Google. Melvin was great. Fast and efficient.
Serving the Bay Area
Kitchen Sink Installation Available In
We proudly serve homeowners across the entire Bay Area
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