Klaus & Sons Plumbing, Heating & Air Conditioning

★★★★★ 4.6 / 5 (241)
: 5623 Arrow Hwy, Montclair, CA 91763
: (909) 982-5698
: http://klausandsons.com

Company Overview

Klaus & Sons Plumbing, Heating & Air Conditioning was established in Montclair in 1973. Our staff is knowledgeable, professional, and thoroughly trained. We ensure that every task is performed swiftly and correctly.

For over 38 years, Klaus & Sons has proudly served both residential and commercial clients in the Inland Empire. As a family-owned and operated business spanning three generations, we have built a reputation for excellence. Whether you need a FREE estimate for your heating, air conditioning, or plumbing needs, you can depend on us.

Our 24-hour service means we are available for you and your family during any crisis. Our team specializes in sales, service, and installation of Carrier units, along with all your plumbing needs. We also offer services like attic insulation, duct replacement, and electrical enhancements. We have earned NATE and NCI Certifications, as well as a BPI Home Performance Certification, allowing us to perform Energy Assessments for your home.

Klaus & Sons is dedicated to our work and believes in achieving total customer satisfaction.

Business Services

  • Bathtub installation
  • Bathtub repair
  • Building energy audit
  • Drain installation
  • Drain repair
  • Faucet installation
  • Faucet repair
  • Garbage disposal repair
  • Gas line installation
  • Gas line repair
  • HVAC installation or replacement
  • HVAC system repair
  • HVAC system maintenance
  • Plumbing inspection
  • Plumbing installation or replacement
  • Plumbing repair
  • Sewer installation
  • Sewer repair
  • Shower installation
  • Shower repair
  • Sink installation
  • Sink repair
  • Toilet installation
  • Toilet repair
  • Water heater installation
  • Water heater repair
  • Water pipe installation
  • Water pipe repair

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:12:00 AM - 12:00 AM (Next day)

Recommended Customer Reviews

Xochi R.
★★★★★

We recently needed plumbing service and I kept seeing the Klaus and Sons vehicles in my area. I decided to research them and give them a try. We'll, they did not disappoint. We had Tyler come by and service our home and he was AWESOME. Tyler explained everything and did not try to oversell anything. You can't ask for more when you are already thinking of how much everything is going to cost. We are glad we called. There is a reason why we see your vehicles everywhere. Thank you Tyler and Klaus and Sons.

Jan H.
★★★★☆

A technician came out from Klaus and Sons to tune up my AC. He was very thorough and showed me in several ways that my system was damaged (leaking oil, cracked motor, etc.) The install crew put in my new system and might have been in too much of a hurry. The next day I called with some noise concerns. A technician was dispatched in less than an hour. He also was very thorough, and he spent an extra three hours on warranty work. He solved the problem. I was extremely pleased with his work. He was unusually conscientious! The moral of the story is that Klaus and Sons backed their work and made it right for the customer, me.

Steve C.
★★★★★

Always prompt reliable and affordable service. Work always seems to be quality and lasts. Highly recommend

Derek S.
★★☆☆☆

Quoted me just under $4900 to run 25' of copper pipe. No breakdown of quote - just a number seemingly pulled out of thin air. When I queried the price the response was 'material costs have increased'. 3/4"" copper is around $10/foot, that leaves around $4600 for half a days labor. Yes, running a business has overheads and other costs, but not $750 / hour for labor.
I ended up going with another company and the final cost was $1250, which is still pricey but not blatant gouging.

Robert E.
★★★★★

Professional responsive & reliable, they are the go to for my plumbing needs. Called a couple other plumbing companies to try and save a little money to only be disappointed with an arrival well past the time frame they gave me and had to listen to him trying to up sell me on a product I didn't inquire on.

Michele C.
★★★★★

Emergency blowout of what turned out to be a sprinkler that led to flooding water out into street. At 4:40 on a Saturday afternoon, of course. Prompt response within15 minutes, turned off water, diagnosed the problem, fixed it and all was well by 5:30. Whew! Excellent on all counts!!

Annie S.
★★★★☆

The job was over priced by $200!!- however - I just wanted the bathroom vanity drain pipe replaced and call it a day. I didn't want to call around. My neighbor was using them at the same time- that's how I found them! Yup! He did a great job. He was done in an hour. Cleaned up the mess. I'm happy we can now move on- just a bitter feeling of being over charged! It's done!

Barry J.
★★★★★

This company is run the way every company should run. They excel in there workmanship, value of there work but the customer service is outstanding. Could not be better. I've always been very impressed.

Ron M.
★★★★★

The technician was very thorough and made the process easy. Would definitely use the company again.

Jonathan S.
★★★★☆

There was a leak behind the wall of the bathroom. I open the wall, closed the water. Visited Klaus, they came fast and made a Profesional fix. However I found them rather expensive.

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