Best Air Duct Installation in Oakland CA

A shout-out to Nahman technician Deepak Sharma for his quick response when my water heater of 20 years finally rusted through Friday afternoon before the Christmas holiday. Not only did he arrive to diagnose the problem, he came back the next morning and installed a replacement. Deepak was not scheduled to work that Saturday, but did so because we would otherwise have had to wait until Monday for hot water. Many thanks to Deepak and Nahman's for great service during a pre-holiday crisis.

I couldn't figure out how to remove the filter on my furnace to replace it. So I spoke to Joey over the phone and he helped me out. I just want to say thanks. Now it's working great. I really appreciate that.

Rey did work for us on a couple occasions and his crew did a good job at a reasonable price.

Last time I called for two relatively minor issues, things went downhill.  

Having a little experience with residential plumbing, I suggested what I thought was the problem and fix.  Rey didnt agree with my diagnosis, tried and failed to fix one of the issues and tried to sell me on several thousand dollars in repairs and upgrades.

I ended up fixing one problem myself for $75 in parts (took me several hours, but I was right about the problem).  The other problem was fixed by another plumber in less than a hour for a $150 service call.

I dont appreciate being sold on things I dont need.  I just want my problem fixed.  I need to be able to trust that my plumber (or any tradesman) is giving me good advice.  For this reason, I wont be using Colt-Lacayo again.

Alex V was fantastic - very knowledgeable and friendly as well as being right on time. Alex's easy going demeanor was much appreciated as well as his successful installation of our new garbage disposal. His maintenance tips are useful, too.

I agree with a previous Yelper.  You have to call repeatedly to get a response.  Tech showed up and took only cash for the diagnostic and didn't offer receipt.  We tried calling back since we were told 30day warranty and tech said he's out of town for 2wks.  If we don't get a return visit and a REAL inspection and repair, my next stop will be to report this company to BBB.  Their website HAS TO be fake because their customer service is nothing like they portray.  I'm tempted to take the loss on the $85 and go elsewhere but I was trying to give them the benefit of the doubt, but something tells me I'll be wasting my time.

Ron is outstanding. I used him for furnace repair: he came early, handled the problem quickly and at very low cost, and did some extra inspection for good measure. He's also very polite and professional. Highly recommended.

Juan Galvan our service technician was detail oriented, explained the issues well, and kindly responded to our questions. He repaired our hvac on the spot and it runs like a top now.  We would use their service again and recommend him to a friend.  
Thank you to Juan our tech and Amelia our dispatcher, for both being so pleasant to speak with while working out the details.

have known the family forever, for absolutely all of your plumbing and heating needs
there is not a finer company, attentive to service, good pricing, and quality merchandise
and service to go with-  rave rave rave- today was a hot water heater for my elderly mother
and they are doing the job same day,  awesome, cant thank them enough

This review is long time due, Jazz provide a great service to our house this winter. We moved about a year ago and had no air conditioner,  only heater. We called and they call right away and came to visit us the same week. They give us a solution and great customer service. Jazz son was great!