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

Local Reviews
for rancho cucamonga, ca

Rated 4.9 out of 5 stars based on 46 customer reviews

Excellent service

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


Response from Klaus & Sons:

Thank you so much for taking the time to leave us this amazing review!

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Overall Outstanding!

We are extremely happy with Klaus & Sons. Their workers were on time, did what they were hired to do and cleaned up after themselves. That said, the men were friendly and attentive to any questions or suggestions we had. They laid protective padding over the entire work area, and after each days work (2 in our case), they put everything back in place, removed the coverings and vacuumed any materials left. They placed the things they removed in their truck (not in our bins like some workmen we have had)and took it away at the end of each day. We couldn't have been more pleased! Just noticed the question on rating the cost/pricing of their service. They were not the least expensive nor the most expensive, but they were well worth the price!

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Excellent service

I can always count on Klaus and sons for excellent work and on time.

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Great service

Saul stayed in communication, explaining progress and had a very good customer interaction.

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sewage pipe repair

with such a short notice, and a weekend, kiinda amazing how they responded at once.

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Excellent service!

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Love these guys!

Always reliable & helpful & it’s wonderful to have a business like Klaus in your corner.

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Outstanding Service as usual

Service was great from my initial contact until completion of work. Your employee was prompt, polite and thoroughly explained what he would be doing. Great personality!

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EXCELLENT SERVICE

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Great Staff

Helpful, Friendly and Professional staff member.


Response from Klaus & Sons:

Thank you so much for taking the time to leave an excellent rating. We really appreciate your business.

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Excellent company communication

Another awesome job, not just with the work but, office side and communication was on point. I'm a new electrical contractor and using a well known company speaks for itself . Thank you Chris at Seymour Lighting

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Excellent service

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Great Service

Great service. Always early, diagnose problems wuickly

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Great service

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Excellent Service

As usual, Klaus and Sons was very efficient and prompt.

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Job Locations
for rancho cucamonga, ca

Heather P.

Heather P. Job Checkin

12-2. Net 30. Gate code is #3033. Daniel 626-710-3763 the community manager emailed in. There is a leak in front of the unit that needs to be addressed. Attaching video of leak.

12-2. Net 30. Gate code is #3033.  Daniel 626-710-3763 the community manager emailed in. There is a leak in front of the unit that needs to be addressed. Attaching video of leak.

Heather P.

Heather P. Job Checkin

(10-12 REQ) Callback. Spoke with John. The pressure regulator that James put in (still covered under a 1 year warranty) looks like it's leaking.

(10-12 REQ) Callback. Spoke with John. The pressure regulator that James put in (still covered under a 1 year warranty) looks like it's leaking.

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

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


Heather P.

Heather P. Job Checkin

(11-1) Net 30. CALL JESSE BEFORE GOING OUT! Per Jesse, the 4 inch floor drain is backing up again


Heather P.

Heather P. Job Checkin

Within the hour. Requested Raul. I spoke to Brian, they had Raul out last month working on their hvac unit and were told that the work he did was going to take care of the issue and the unit is still not blowing as cold as it should be. They want to make sure that the unit works right before it gets hot.


Heather P.

Heather P. Job Checkin

3 - 5. Spoke to Carrie. Leak on shut off valve underneath kitchen sink, was trying to hook up new dishwasher and they can't shut it off. Main line is currently turned off. Please check out and provide pricing before performing any work!!


Heather P.

Heather P. Job Checkin

(2-4) Per Andrew, Hydrojetting


Heather P.

Heather P. Job Checkin

(TODAY, END OF DAY) She has a leak coming from her HVAC unit, see attached images. Please call Dan before heading out!!!

(TODAY, END OF DAY) She has a leak coming from her HVAC unit, see attached images. Please call Dan before heading out!!!

Heather P.

Heather P. Job Checkin

2 - 4. Spoke to Linda. She has a customer supplied toilet she would like installed. Quoted her STARTING at $325. Please re-quote if more than this.


Heather P.

Heather P. Job Checkin

Moved to (3-5)

Moved to (3-5)

Heather P.

Heather P. Job Checkin

2 -4. Spoke to Zoe. Per Jesse, send Sal. Same toilet we have worked on before a few times is still leaking from very bottom from the tank. Old tech Bryan installed this back in Nov. 2023. Amen came out a few times for leaking of it and spoke to Jesse about how the gasket can't be reached because of how it was installed. They have called back multiple times for it leaking. It probably needs to be completely replaced. Please take a look at it and see what's going on and ask Jesse what he would like to do.


Heather P.

Heather P. Job Checkin

2-4. Per Andrew going back to camera line for customer.


Heather P.

Heather P. Job Checkin

(12-2) Callback. Wes installed a toilet for her on Monday, 5/5, and it's now leaking.


Heather P.

Heather P. Job Checkin

(12-2) Net 30. Per Jesse, go back, they have a leaking tee

(12-2) Net 30. Per Jesse, go back, they have a leaking tee