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

Local Reviews
for claremont, ca

Rated 4.9 out of 5 stars based on 90 customer reviews

SUPERB technician!

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Responsive even after hours

Used them for years. They are good at what they do. They are always responsive, even on holidays and after hours. They are concerned with making sure they fix your issue.

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Excellent service!

Great service, careful work, friendly.

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Great service !

Great service ! I would highly recommend!

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Highly Recommended!

Great service…very prompt and professional!

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Took care of the problem immediately

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They do it all!

I use Klaus & Sons for A/C, Plumbing and Heating at both my home and place of business. They are always on time, friendly and professional. I highly recommend!

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Excellent Service!!

Arrived promptly. Evaluated the issue. Secured the part. Successfully stopped the leak. Left the shower clean and shiny!!

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Excellent Service!

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Excellent Service, Knowledgable Staff

From scheduling to completion, a pleasure to interact with the team. Fernando was knowledgable and explained everything very clearly.

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Great job

Very friendly people. Quick response and service.

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Highly ethical and trustworthy

Amin was very professional and polite!! He explained the options and worked quickly to resolve my plumbing issue. I appreciated his being clear and honest with his explanation.

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Professional/Quality service as always

Mario did a great job! 👍

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Customer

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Excellent Service!

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Job Locations
for claremont, ca

Heather P.

Heather P. Job Checkin

(10-12) Callback. Spoke with Karri, the tub that Mario cleared the drain for on 8/25/25 (still covered under the 30 day warranty given) is now backing up again. There is about an inch of standing water in the tub.


amen@klausandsons.com

amen@klausandsons.com Job Checkin

2-4. COD. Call when in route. I spoke to Susan, the pilot light went out to water heater and the machine is flashing lights constantly. They're not getting any hot water.


Heather P.

Heather P. Job Checkin

3-5 arrival requested!


amen@klausandsons.com

amen@klausandsons.com Job Checkin

2-4. COD. Call when in route. I spoke to Susan, the pilot light went out to water heater and the machine is flashing lights constantly. They're not getting any hot water.


amen@klausandsons.com

amen@klausandsons.com Job Checkin

2-4. COD. Call when in route. I spoke to Susan, the pilot light went out to water heater and the machine is flashing lights constantly. They're not getting any hot water.


AndrewE@klausandsons.com

AndrewE@klausandsons.com Job Checkin

12 - 2. COD. Spoke to Stephen. He won't be home but his wife will be. Issues with hot water heater, thinks the recirculating pump is not working - water not staying hot. Started about a week ago. Age: About 7 years old. Please check out and provide pricing before performing any work!


david@klausandsons.com

david@klausandsons.com Job Checkin

Scheduled 1 - 5. Please call when on the way!! 1-hour job per David


Jesse@klausandsons.com

Jesse@klausandsons.com Job Checkin

12 - 2. Jesse was out for repair of broken water main underground 2 weeks ago. Leak caused by roots from an olive tree, fixture or valve that goes to fill pool and went to fill pool, discovered that valve is leaking a bit, only leaks when turned on, needs tightening possibly? Please check out


AndrewE@klausandsons.com

AndrewE@klausandsons.com Job Checkin

(10-12) COD. Per James (our tech) Terry needs the trip lever replaced on his toilet. Please see attached pictures for reference to get the right part(s). I called and approved the appointment timeframe with Terry. Please get approval on any pricing BEFORE performing any work!


AndrewE@klausandsons.com

AndrewE@klausandsons.com Job Checkin

(10-12) COD. Per James (our tech) Terry needs the trip lever replaced on his toilet. Please see attached pictures for reference to get the right part(s). I called and approved the appointment timeframe with Terry. Please get approval on any pricing BEFORE performing any work!


AndrewE@klausandsons.com

AndrewE@klausandsons.com Job Checkin

8-10. COD. Call when in route. I spoke to Shao, the faucet in the bathroom is giving very little water.


wes@klausandsons.com

wes@klausandsons.com Job Checkin

8 - 10. NET30. Spoke to Duke. Said he received letter from insurance company requiring: 1) automatic water shut off device – has 2 on hand, wasn't sure if we need just 1 or 2 for both backhouse and main home. 2) low temperature sensor? Jesse said this may be for the water heater/pressure relief valve, so please check this out as well while there (there is 1 water heater in garage, second is in back house). PLEASE TAKE PICTURES while there, Duke needs them for insurance. If you have any questions, please call Duke and also call him with pricing for approval before performing work! - (909) 957-8688


Heather P.

Heather P. Job Checkin

(Rescheduled to 2-4) Also has a toilet that he wants to get looked at since it's getting hard to flush it.

(Rescheduled to 2-4) Also has a toilet that he wants to get looked at since it's getting hard to flush it.

Heather P.

Heather P. Job Checkin

Customer approve estimate, ALL DAY PER JAMES - attached screenshot of approval below.

Customer approve estimate, ALL DAY PER JAMES - attached screenshot of approval below.

david@klausandsons.com

david@klausandsons.com Job Checkin

1 - 5 (TIME REQ). COD. Spoke to Andrew. Call this number day of when on the way!! - (909) 273-1527. We installed his system September last year; he would like his filter changed and AC serviced (quoted $158 for maintenance + filter price). Not sure what size MERV11 he has, bring both 16 & 20 inch, I quoted him the prices for them ($49 or $51).