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new kitchen sink installation whether they’re remodeling, upgrading their fixtures, or replacing a cracked, leaking, or outdated sink.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
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Julia GarciaTrustindex verifies that the original source of the review is Google.
Called to have my sump pump reassemble and secured . Thank you Beck for a job well done.☺️Posted on Google![]()
Jasko HuseinovicTrustindex verifies that the original source of the review is Google.
Manuel was great, experienced at his job Got everything fixed in timely manner, well behaved professional and very respectful I’d recommend him any dayPosted on Google![]()
Shailesh PhansalkarTrustindex verifies that the original source of the review is Google.
Anton did an amazing job. Needed to replace the old shower valve.Posted on Google![]()
Col Liz PerezTrustindex verifies that the original source of the review is Google.
I had an impossible tub spout repair. Other plumber said to break through my custom bath tile and kitchen cabinetry to replace the fitting. Ren B. from United researched the fitting and within three minutes removed it—no tile or cabinet cutting required. To top things off, Ren was so courteous and kind. I highly, highly recommend Ren and United for their honesty, fast work, and professionalism. 5+ stars!Posted on Google![]()
Sj BrownmanTrustindex verifies that the original source of the review is Google.
I had a great experience with Cris! He came out to replace the cartridge in my shower and did an excellent job. He was professional, knowledgeable, friendly, and explained everything clearly throughout the process. The replacement was done quickly and efficiently, and my shower is working perfectly now. I really appreciate his attention to detail and great customer service. I would definitely recommend Cris to anyone looking for a reliable and trustworthy plumber!Posted on Google![]()
Maria xoTrustindex verifies that the original source of the review is Google.
I had a great experience with Cristopher Villa. He came out to diagnose an error code on my tankless water heater and was able to identify the issue. During his inspection, he also noticed that the unit was leaking and brought the problem to my attention. Cristopher provided me with three different options to address the issue and explained each one clearly. He also made sure the recommended setup included all the necessary add-ons and safety components to ensure the installation would be up to code. Very professional and knowledgeable service.Posted on Google![]()
Leonel MendozaTrustindex verifies that the original source of the review is Google.
I had a great experience with Cristopher Villa. He did an excellent job redoing the plumbing underneath my kitchen sink and making sure everything was properly connected and working as it should. He also snaked the kitchen drain line to address a recurring blockage. Cristopher was professional, knowledgeable, and took the time to make sure the issue was completely resolved. After the work was finished, the kitchen sink was draining properly again with no issues. I would definitely recommend Cristopher Villa to anyone looking for reliable and professional plumbing service.Posted on Google![]()
Adam CataldoTrustindex verifies that the original source of the review is Google.
I like the service. They charged me a flat rate, which was nice because it ended up taking longer more the plumbing work than I expectedPosted on Google![]()
Lisa LloydTrustindex verifies that the original source of the review is Google.
Pasha was prompt, focused and organized. Very professional- he knew exactly how to install our new water drop filter system. We are very happy with his work!Posted on Google![]()
Xinxin YangTrustindex verifies that the original source of the review is Google.
Very professional and friendly. Solved my AV issue quickly! THANK YOU!
Serving the Bay Area
Kitchen Sink Installation Available In
We proudly serve homeowners across the entire Bay Area
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