Duncan Plumbing
Company Overview
Duncan Plumbing is a Diamond Certified plumbing service committed to providing Santa Cruz County with timely and respectful service. Our company boasts trained courteous tradespeople focused on meeting customer needs along with attention to detail. We provide services such as drain cleaning, sewer line repairs, water heater fixes, and emergency plumbing to meet your plumbing requirements.
Duncan Plumbing is a family-owned business. We started this venture due to our recognition of an opportunity for quality plumbing in Santa Cruz for a plumbing provider that prioritizes customer service that actually returns calls, arrives on time, and finishes work promptly. With our experienced plumbers that all our work complies with local codes with a satisfaction guarantee.
Aiming to elevate service standards in Santa Cruz County, we aim to provide the best service possible for every customer. We will address your plumbing concerns and guarantee our workmanship.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Hydro-jetting
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Sump pump installation
- Sump pump repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 7:30 AM - 9:00 PM |
Tue: | 7:30 AM - 9:00 PM |
Wed: | 7:30 AM - 9:00 PM |
Thu: | 7:30 AM - 9:00 PM |
Fri: | 7:30 AM - 9:00 PM |
Sat: | 7:30 AM - 9:00 PM |
Sun: | 8:00 AM - 9:00 PM |
Recommended Customer Reviews

Wow! On time, professional service from the minute you call to the minute they finish the job. Eric and Josh were professional, clean and knowledgeable. They put in a new water heater in our house and it looks fantastic. The office staff is extremely helpful and polite. Go with Duncan if you want good work done!

Of course our toilet started acting up on a Friday. I contacted Duncan Plumbing and got an immediate response and an excellent quote! They were at my home within hours. Nui the technician was knowledgeable and explained what was going on. It was repaired under an hour and I wasn't left broke . I highly recommend Duncan Plumbing and would 100% use them again.
I even got a super sweet coffee mug

I called Duncan plumbing today for a leak under my kitchen sink. Nui, came out and he was really amazing! We also discovered another problem, which he was so helpful about. They really are a 1st class company, and it shows! I will only use Duncan plumbing in the future!

Nui and Josh got my kitchen sink unplugged (and I had REALLY plugged it up!) in less than 1/2 hour and left the area under the sink cleaner than before. Very competent and professional. Plus, I called at about 9 and they came 3 hours later. Great Service!

A fantastic experience all around! My fireplace gas valve failed and resulted in a gas leak. I contacted Duncan Plumbing right here over Yelp and Scott responded very quickly. He had Jorge and Joshua come by within an hour and Jorge did an incredible job fixing the valve without having to get into the wall. They were fast, very efficient and I'll be looking to this company for any future plumbing needs!

If my review were based on their first visit, I would've given 5 stars because Enrique was friendly, efficient and did a great job cleaning my pipes.
But I give three stars today.
Yesterday my disposal wasn't working. I looked at it, and on the disposal is a Duncan Plumbing sticker. So, assuming that they had originally installed it, I called them.
They arrive. Quote us around $450 for a new one... I had a bunch of plumbing done six months ago by two different companies, Duncan being one of them, so I asked them to see if it was under warranty. Turns out::: They didn't even install the disposal that they put their sticker on. They jsaid that it is a company policy they do whenever they work on someone's plumbing... Yea, ok, I get the whole marketing aspect of things.. BUT.. it was confusing as hell..
NEW RULE: Don't put your damn stickers on my property. Don't put your stickers on things that you didn't install, OK????? It is problematic!
But that's not the reason I'm so completely turned off. They didn't even LOOK at my disposal before giving me the quote-- to see if it just needed fixing... They went straight to selling me a new one. In a time where our landfills are piling to Mars, give me a break...
and IT GETS WORSE / BETTER...
They leave. I call around.
My fellow neighbors, believe me when I tell you that there was only ONE plumber that I called that offered me free advice over the phone and told me there is a RESET BUTTON underneath disposals. I pushed it and IT WORKS. That one honest company???? ANYTIME PLUMBING.

Duncan Plumbing answered their phone immediately and set up an appointment quickly. Jorge and Josh definitely seemed to know what they were doing and solved the problem. They were efficient, and honest in their assessment and the job was completed in good time. I am very pleased.

They really saved us. We had a salon full of clients and no hot water. Within the hour we were back up and running!

I discovered that the water main into my house was broken on a Saturday at 4PM. I looked up emergency plumbers and randomly
picked Duncan Plumbing. Luck was with me because within an
hour I was hooked up to my neighbors water to get me through
the rest of the weekend and then first thing Monday they started
on digging the trench for the new line and by Tuesday afternoon
they were done. The lawn was patched back up beautifully and
everything cleaned up good as new. I can't say enough good things
about this company. Good people doing good work!

This is my go to plumber. After a futile Saturday afternoon spent calling plumbers who either didn't return calls, were unwilling to come out, (regardless of their 24 hour policy), I called D uncan. My message was promptly responded to, then within 30 min, they arrived, explained my options, completed the service and left clean area. He was personable, kind and you couldn't ask for a more professional person. The cost was reasonable too! Thanks DUNCAN.