1245 Thompson Ave
Santa Cruz, CA 95062
831-476-5200

Local Reviews

Rated 4.8 out of 5 stars based on 46 customer reviews

Very helpful and knowledgable

Would use them again

  • Overall Experience
  • Quality
  • Price
  • Convenience

Knowledgeable and friendly service

Eric performed the work efficiently and informed me every step of the way on my gas line repair.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Eric & Cal Radiant Review

We have used Cal Radiant for a number of years, both for yearly maintenance, troubleshooting and new design. Eric has been 'the guy' in all of these works. He is careful, knowledgeable and fun to work with. I can unreservedly recommend both Eric and the firm.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Great, prompt service

Kitchen drain backed up. Duncan Plumbing responded promptly. Cleared and replumbed the drain.

  • Overall Experience
  • Quality
  • Price
  • Convenience

First rate service, a bit pricey for the task. But thanks!

Prompt, Saturday and I was warned ahead of time on the premium, somewhat simple fix with hole already dug out, tech.went for higher gauge material which I appreciated, water was already shutoff. iPad charging technique and approval signage was first rate.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Great customer service and efficient work done!

My experiences with Olivia (weekend phone contact) and Eric Smith to Anna (weekday contact), Eric, Sergio and Jose were outstanding! A pleasure to deal with polite, competent people! What a great team! Thank you, so much..,I also ppreciate the follow up call from Anna the day after work was completed.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Great service

Very professional

  • Overall Experience
  • Quality
  • Price
  • Convenience

Excellent service, and on a weekend

Eric seemed conscientious and thorough

  • Overall Experience
  • Quality
  • Price
  • Convenience

Great Service

Eric Smith of California Radiant is an expert and a great person.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Wonderful Service!

I am delighted to have California Radiant (aka Duncan Plumbing) working on my radiant heat system as well as the older style plumbing on my property. They’ve taken the time to sort out some old messes and make everything understandable to me. And I love their annual free inspection to see if anything is needing attention before a problem crops up. They call me to schedule it in the month I’ve requested. Their service has been excellent, way above average, and I would recommend them to anyone!

  • Overall Experience
  • Quality
  • Price
  • Convenience

Job Locations

Eric S.

Eric S. Job Checkin

Cleared a plugged urinal.

Cleared a plugged urinal.

Eric S.

Eric S. Job Checkin

Repaired heating system

Repaired heating system

Eric S.

Eric S. Job Checkin

Cleared plugged main sewer line.

Cleared plugged main sewer line.

Eric S.

Eric S. Job Checkin

Installed a new boiler.

Installed a new boiler.

Eric S.

Eric S. Job Checkin

Installed a new condensing boiler.


Eric S.

Eric S. Job Checkin


Eric S.

Eric S. Job Checkin

Repaired leak in an equipment room.

Repaired leak in an equipment room.

Eric S.

Eric S. Job Checkin

Cleared plugged drain and repaired a small leak.

Cleared plugged drain and repaired a small leak.

Eric S.

Eric S. Job Checkin

Provided estimates to replace faucet and to clear a drain

Provided estimates to replace faucet and to clear a drain

Eric S.

Eric S. Job Checkin

Replaced pressure regulator and shower trim.

Replaced pressure regulator and shower trim.

Eric S.

Eric S. Job Checkin

Repaired leaking toilet


Eric S.

Eric S. Job Checkin

Provided an estimate to install a pressure reducing valve on the water service line.

Provided an estimate to install a pressure reducing valve on the water service line.

Eric S.

Eric S. Job Checkin

Serviced hydronic boiler.

Serviced hydronic boiler.

Eric S.

Eric S. Job Checkin

Adjusted a zone valve for a hydronic heating system

Adjusted a zone valve for a hydronic heating system

Eric S.

Eric S. Job Checkin

Repaired a leaking gas line.

Repaired a leaking gas line.