5623 Arrow Hwy
Montclair, CA 91763
(909) 982-5698

Local Reviews

Rated 4.9 out of 5 stars based on 298 customer reviews

Great service

James was great. Gave us our options to choose from for water heater. No pressure chose to get a new water heater. He went and picked up and installed all within a few hours. He represented Klaus & Sons very well.

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Great work

Top notch. Mostly concerned with doing things right the first time.

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Excellent service!

Quick, professional, thorough service—on Mother’s Day!

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Always have been the best

They are a wonderful very responsive and professional company. I have used them for years

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Exultant service

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Klaus and Son’s are always my go to for plumbing and a/c.

Dependable, trustworthy, professional, reliable and friendly.

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Thanks, Heather!

Heather was very friendly and professional. She was able to schedule my appointment at a time convenient for me. She also kept me updated on when the technician would be arriving. Excellent service all around.

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Heat and Air service

The service was excellent and serviceman David was awesome.

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Excellent service

Klaus always comes through and fixes the problem. They are awesome!!

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Great service!

Every time!

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Excellent

I am writing to wholeheartedly recommend Kalus & Sons for any of your service needs. Each time I have reached out to them, I have been impressed by their honesty and promptness. Their team is not only knowledgeable but also genuinely caring, making the entire experience much more pleasant. Kalus & Sons consistently deliver amazing work, and they take the time to listen to any concerns I may have. I truly appreciate their dedication to fixing problems promptly and effectively. Kudos to this fantastic team for their outstanding service! Thank you for considering my recommendation. Nina P.

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HVAC DUCTING REPAIR

Fernando and Evan arrived on time. They were professional, friendly and respectful. They explained what they planned to do. The work was completed quickly and they cleaned up thoroughly. I was exceptionally pleased with the entire project and would not hesitate to recommend them and Klaus highly.

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Excellent Service!

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Great

When I called Klaus and Sons, Heather answered and was so friendly, courteous and helpful! She listened to my tale of woe about the leak and she scheduled an appointment the next morning. She later checked with me about a minor schedule adjustment with Wes, who did a fantastic job fixing the leak!! I hope I don't have future plumbing issues but when I do, I will call Klaus and hope to speak to Heather!

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Job Locations

Heather P.

Heather P. Job Checkin

2-4. I spoke to Emil (310) 739-4899, he is Margos husband. The upstairs shower drips even after it gets shut off and they want it fixed.


Heather P.

Heather P. Job Checkin

3-5. I spoke to Belva, they need an outside water filter to be looked at as it is leaking alot. They had Sal out a few months ago to look at it and he shut it off now it is leaking again but she was worried and did not want to wait for him.

3-5. I spoke to Belva, they need an outside water filter to be looked at as it is leaking alot. They had Sal out a few months ago to look at it and he shut it off now it is leaking again but she was worried and did not want to wait for him.

Heather P.

Heather P. Job Checkin

12-2. COD. I spoke to Pauline, they have a leak in the wall when they use the water fountain. Also have a couple of toilets on site that need repair.


Heather P.

Heather P. Job Checkin

Please mail a physical invoice


Heather P.

Heather P. Job Checkin

10-12. COD. Call when in route. I spoke to Vickie, they need their water heater looked at, their unit just stopped working all of a sudden and they can't get it back up and running.

10-12. COD. Call when in route. I spoke to Vickie, they need their water heater looked at, their unit just stopped working all of a sudden and they can't get it back up and running.

Heather P.

Heather P. Job Checkin

3-5. COD. I spoke to Theresa, they want to get a kitchen jetter done to clear their line.


Heather P.

Heather P. Job Checkin

(8-12) Req David. Spoke with John and Susan. Please enter the complex via Paseo La Paz. Gate Code is #1957. *NEW MEMBER* David, please make sure you service BOTH AC & Furnace components. They are now gold members. They already paid $235 for this membership. Please remember they get 10% off any repairs, filters, or refrigerant due to being a member of the service agreement plan!


Heather P.

Heather P. Job Checkin

No need for invoice. I quickly checked cooling levels. No charge.


Heather P.

Heather P. Job Checkin

2-4. Sal requested. I spoke to Soundra, they had a water heater installed by us in 2020 and the unit is not working properly, they are not getting any hot water from the unit at all. Did see there was still warranty on the parts, not the labor.


Heather P.

Heather P. Job Checkin

8 - 12 per Sal. Coming back to install some sinks


Heather P.

Heather P. Job Checkin


Heather P.

Heather P. Job Checkin

If disconnect is needed. Box only. 4 ton max 45 amp fuse.


Heather P.

Heather P. Job Checkin

(8-12) Spoke with Anna. *NEW MEMBER* David, please make sure you service BOTH AC & Furnace components. They are now gold members. They already paid $235 for this membership. Please remember they get 10% off any repairs, filters, or refrigerant due to being a member of the service agreement plan!


Dan@klausandsons.com

Dan@klausandsons.com Job Checkin


Heather P.

Heather P. Job Checkin

Updated to an arrival between 9:30-11