Top Plumber & HVAC Contractor In Rancho Cucamonga, CA

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Rancho Cucamonga Plumbing, Heating & Air Conditioning

Plumber In & Around Rancho Cucamonga

Rancho Cucamonga and Alta Loma are large communities. Fast-growing communities may have lots of choices for full-service plumbers, but Klaus & Sons has been the area’s most reliable and professional comprehensive plumbing service since 1973.

We offer expert plumbing repair, installation and maintenance services for the Rancho Cucamonga customer. Don’t let a clogged toilet, a broken water heater or a broken garbage disposal inconvenience you again!

We offer emergency plumbing services 24 hours a day. Count on us to repair kitchen and bath plumbing issues, repair your leaking sink, fix your overheating garbage disposal and offer complete hot-water heater repair and installation. No job is too big or too small for certified, experienced plumbers

Call the professional plumbers at Klaus & Sons Plumbing Heating & Air Conditioning in Rancho Cucamonga, CA today for plumbing service or a free estimate! 

24 Hour Emergency Plumbing Services • 24 Hour Water Heater Services • Commercial Plumbing Services • Drain Cleaning • Drain Pipe Installation • Garbage Disposal Installation • Gas Line Leak Repair • Kitchen & Bathroom Sink Installation • Low Water Pressure Services • Plumbing Repair Services • Plumbing Valve Repairs • Re-Piping Services • Copper Re-Piping • Tankless Water Heater Services • Rancho Cucamonga Plumbing Experts

Rancho Cucamonga Heating Services

Baby, it’s cold outside! The high winds that frequent the RC area can make it seem even colder. We can service and repair your heater and help you stay toasty and warm. Our factory-trained heating technicians have been serving the Rancho Cucamonga area for over 40 years. Every heating system is a little different, and an experienced technician can help you decide the best course of action for your home and energy needs. With our free in-home estimates, we can tell you exactly what you need for a heater repair or furnace replacement and give you an upfront, accurate estimate.

Call the professional HVAC technicians at Klaus & Sons Plumbing Heating & Air Conditioning in Rancho Cucamonga, CA today for heating service or a free estimate!

Furnace Repair • Heater Repair • Heat Pumps • Electric Or Gas Water Heater Replacement & Repair • Heating Maintenance • Thermostat Repair & Replacement • Rancho Cucamonga Heating Experts

Rancho Cucamonga Air Conditioning Services

Rancho Cucamonga homeowners depend on their air conditioning, especially in the summertime. You can depend on Klaus & Sons to service and repair your air conditioner quickly and efficiently. Our motto is “Efficient and Way Cool” because we know that air conditioning repair and installation need to be done right the first time. No one wants to be stuck in their home or business without AC on a hot summer day.

Our skilled technicians can maintain and repair your air conditioner so that you can stay cool. We can also help you decide on a new HVAC system that is the most efficient option for your home. The right system is essential in lowering utility bills while keeping you cool.

Call the professional HVAC technicians at Klaus & Sons Plumbing Heating & Air Conditioning in Rancho Cucamonga, CA today for air conditioning service or a free estimate!

AC Compressors • High-Efficiency Options • Thermostats • Air Conditioning Filters • Central Air Conditioning • HVAC Service • AC Maintenance & Repair • AC Filter Replacements • Ductless Air Conditioning And Repair • Multizone Air Conditioning Systems • Rancho Cucamonga Air Conditioning Experts

Full Services For Your Rancho Cucamonga Home & Business

Klaus & Sons offers these other essential services to homeowners in Rancho Cucamonga, CA:

  • Duct Repair
  • Blower Door Testing
  • Free Estimates
  • Routine Maintenance
  • Comprehensive HVAC & Plumbing Troubleshooting, Repair & Replacement
  • Duct Cleaning
  • Home Energy Analysis
  • Air-Conditioning & Heating Tune-ups
  • Filter Maintenance

Rancho Cucamonga plumbing, heating and air conditioning customers can count on on-time service from skilled, professional HVAC and plumbing experts, as well as 100% satisfaction guarantee. Klaus & Sons professionals are highly trained and undergo continuous education. You’ll receive friendly, courteous service from our staff and clean, efficient work by our plumbing and HVAC crew.

Our work is always in compliance with state and local Rancho Cucamonga codes and building guidelines.

Recent Jobs and Reviews in Rancho Cucamonga, CA

Rated 4.9 out of 5 stars based on 27 customer reviews

Customers say: The provided content describes the overall sentiment of the reviews as positive. The reviews consistently mention positive experiences with the company, praising their communication, professionalism, quality of work, and timely completion of projects. Customers express satisfaction with the company's ability to handle various plumbing issues, their friendly and knowledgeable staff, and their commitment to customer satisfaction. There are also mentions of competitive pricing and the company's reputation for excellence. However, there are a few negative reviews that mention issues with pricing and a lack of resolution for some plumbing problems. Overall, the sentiment is positive, with more positive reviews outweighing the negative ones.

Job Locations and Reviews

Rancho Cucamonga, CA - 12 - 3. Amen coming back for repair. Lea let tenants know that water will be turned off for multiple buildings while repair is being done. Carol (tenant) said that she works from home on Wednesdays so she will be there as well :)
Heather P.
Heather P. Checked in
12 - 3. Amen coming back for repair. Lea let tenants know that water will be turned off for multiple buildings while repair is being done. Carol (tenant) said that she works from home on Wednesdays so she will be there as well 🙂
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
(2-4) CALLBACK, SAL ONLY! Spoke with Joann. One of the connections from the drain replacement you performed on Monday is leaking!
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
3/25/25 System will need a Lennox 45/10 uf by next year. Under warranty. Reg. 379.00 actual 179.00
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
Now. Spoke to Guy, he is son of the owner, takes care of everything for her. Mobile home. SPC 100. His mom loves us, used to use us at her house all the time, our first time at this property though. Their front bathroom different from back bathroom. Back bathroom has good pressure, flushes easy, but the front one is the opposite and they aren't sure why. Have been speculating for 6 months, been getting worse. He isn't sure if it's a simple snake job or something worse. IMPORTANT: Come to carport area when you are there, NOT front door; he will meet you out there. Also, if you park in front of the house and not across the street, just have to put a cone out.
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
Now. Spoke to Guy, he is son of the owner, takes care of everything for her. Mobile home. SPC 100. His mom loves us, used to use us at her house all the time, our first time at this property though. Their front bathroom different from back bathroom. Back bathroom has good pressure, flushes easy, but the front one is the opposite and they aren't sure why. Have been speculating for 6 months, been getting worse. He isn't sure if it's a simple snake job or something worse. IMPORTANT: Come to carport area when you are there, NOT front door; he will meet you out there. Also, if you park in front of the house and not across the street, just have to put a cone out.
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
Rancho Cucamonga, CA 91739
Heather P.
Heather P. Checked in
4 - 5 (TIME REQ). COD. She doesn't get off work until 3:30pm. Spoke to Gayle. Her toilet is screaming at her!! She googled it and said it might be the ball cock valve or something. Screeching sound constantly, only stops for a little when she flushes. Please provide estimate for repair before performing any work!!
Rancho Cucamonga, CA 91730
Rancho Cucamonga, CA - (12-2) COD. Spoke with Grace, she walked into the office. She just moved into the apartment about 1.5 weeks ago, does NOT have a working phone hooked up yet, no cell phone. She says she receives emails within about 10 minutes though. Master toilet is clogged and the seat is broken. Please get approval on pricing BEFORE performing any work!
Heather P.
Heather P. Checked in
(12-2) COD. Spoke with Grace, she walked into the office. She just moved into the apartment about 1.5 weeks ago, does NOT have a working phone hooked up yet, no cell phone. She says she receives emails within about 10 minutes though. Master toilet is clogged and the seat is broken. Please get approval on pricing BEFORE performing any work!
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
(8-12) Net 30. Spoke with Bessie. She said that their east conference room and the 2 offices next to that room are constantly running hot and seem to have faulty thermostats. When they change the temp on the t-stats, they don't notice any change in temperature at all, just still hot. She is aware of the $178 diagnostic fee. Please call Bessie with findings and to get approval on any other pricing BEFORE performing any other work, (909) 660-2694!
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
(8-10) COD. Spoke with Jerry. His master shower drain is in bad condition and he would like to get a new one installed -- customer supplied, already on hand. Please get approval on pricing BEFORE performing the work!!
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
Per Raul, add on ac install as well. Louis will call in 10 percent for ac unit some time today.
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
8-12. Lindsey signed up for the service agreement and paid up front! Please provide service. Call when in route!
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
(10-12) COD. Spoke with Joann. They have a leak underneath their kitchen sink but they don't know if it's the sink pipes or the garbage disposal. They said that this is a reoccurring issue and they want to make sure it's fixed. Please get approval on pricing BEFORE performing any work!
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
8 - 10. Per Sal: Install garbage disposal and a clean check valve. $489 for garbage disposal and $400 for clean check valve.
Rancho Cucamonga, CA 91739
Heather P.
Heather P. Checked in
1-5. COD. I spoke to Steve, they had a unit installed by us in 2021, and the unit is not working properly. David was out last month and recommended "2/6/25 If problem is persistent order flame sensor and heat shield. Will be warranted. Lennox M #EL180UH100NE60C-03. S #5921D07588".
Rancho Cucamonga, CA 91739
Heather P.
Heather P. Checked in
2-4. COD. Call when in route. She has to pick her grandkid at about 3:30, but will only take her about 10 minutes. I spoke to Teresa, the water in their home is only coming out warm and not hot.
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
2 - 4. Spoke to Joyce. Stopped up commode (toilet). Just started a few minutes ago. They have another bathroom that is working okay.
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
Brirides@yahoo.com Customer would also like a reference for septic cleaning and inspection
Rancho Cucamonga, CA 91701
Review
Got a job done quickly. Didn’t have to wait long for them to come out.
Mary - Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
2-4. They are closed 12-1. Net 30. I spoke to Maria (909) 957-3077 kitchen sink is leaking from the drain under the sink. They gave approval to do the work that needs to be done to fix it.
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
Angie signed up for the service agreement and paid $235 up front!
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
10-12. COD. Call when in route. I spoke to Cynthia, they have a faucet in the bathroom that needs to be tightened up as it is very loose. They also have a hose bib in the back that may need to be replaced.
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
12:30 - 2. COD. Per Jamie: Fernando ONLY. Spoke with Doug. Fernando just went out on 3/10/25 (only 4 days ago) and had reset their system. Their heat is now NOT working. It is showing the following error: "GF calibration failure alert code 276". He is wondering if you can work with him on pricing since he had just paid the diagnostic fee of $158. Maybe just quote higher and give a discount 😆?? Please get approval on any pricing BEFORE performing work!
Rancho Cucamonga, CA 91737
Heather P.
Heather P. Checked in
9 am Cant start until that time! See Jesse. Repair hot water line.1 inch 0r 3/4 lift will be there for you
Rancho Cucamonga, CA 91730
Review
Quick response. Fast and efficient repairs. Very clean.
Randy - Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
Rancho Cucamonga, CA 91730
Review
Heather was excellent & very helpful.
Gregory McNevin - Rancho Cucamonga, CA 91739
Review
Best Plumbing Company EVER! Jamie, in the office, Sets the Standard in Excellence. She goes out of her way to provide superior service. Thank you Jamie!!
Robbie - Rancho Cucamonga, CA 91701
Response from Klaus & Sons:

It was a pleasure serving you and your family. Thank you for sharing your kind words with us. It means the world to us and to our entire team!

Review
A little pricey. But he got the job done. And it was scheduled the same day I called in.
Dave - Rancho Cucamonga, CA 91701
Response from Klaus & Sons:

We are so glad to hear that you had a good experience.

Review
Fernando is always on time and does an exceptional job.
Joe - Rancho Cucamonga, CA 91701
Review
Excellent Service and Completion of Major Sewer Line.
Nong - Rancho Cucamonga, CA 91730
Review
Excellent Service
Kim - Rancho Cucamonga, CA 91739
Review
He should've called me before clearing out the line as I have always had the line jetted out as he recommended on the receipt after the job was done. As the owner, I pay for the work he should have called me prior to the work and I would have told him to jet it out.
Dave - Rancho Cucamonga, CA 91701
Review
Sal was fantastic. I've been trying to find a reliable plumber for a while and I'm happy to have found Klaus and Sons.
Greg Nolan - Rancho Cucamonga, CA 91701
Review
We had a whole house re pipe. Everyone was on time and did a great job. Thank you Jake!
Melissa - Rancho Cucamonga, CA 91701
Review
If it wasn't satisfactory, I would not continue to use them.
Linda - Rancho Cucamonga, CA 91701
Review
Always excellent service
Norma - Rancho Cucamonga, CA 91701
Review
Nice technician, great job!
Thomas - Rancho Cucamonga, CA 91730
Review
Excellent service, as always! Thank you so much!
Catherine - Rancho Cucamonga, CA 91730
Response from Klaus & Sons:

We are so grateful for your 5-star review. Thanks for sharing your rating with us and the community.

Review
Had an appointment for Monday morning but things went to worse more quickly than expected. Heather got things arranged and had someone out shortly after Noon. Great service as always.
Mark - Rancho Cucamonga, CA 91730
Response from Klaus & Sons:

We are so grateful for your 5-star review. Thanks for sharing your rating with us and the community.

Review
Great service, the technician was able to replace the flange and reinstall the toilet today. Very professional technician!
Daniel - Rancho Cucamonga, CA 91701
Response from Klaus & Sons:

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

Review
Knowledgeable of his job , kind , understanding, and patient. Explained things thoroughly.
Gloria Inducil - Rancho Cucamonga, CA 91701
Review
I trust Klaus & Sons completely. Honest, reliable & knowledgeable. I heartily recommend them to everyone I know.
Hugh - Rancho Cucamonga, CA 91701
Review
Highly recommend this team of professional HVAC and plumbers!! They are like family.
Tom - Rancho Cucamonga, CA 91739
Review
Everything was done correctly and efficiently
MIKE - Rancho Cucamonga, CA 91730
Review
Appreciate the fast response to my service request. Your team was helpful and provided excellent care for my concerns.
Paula - Rancho Cucamonga, CA 91730
Review
Heather Pikschus is absolutely outstanding in assisting with all my needs of service. Her demeanor is both courteous and helpful. Thank you Heather for being exceptional!!! Robbie Mumford
Robbie - Rancho Cucamonga, CA 91701
Review
Excellent Service!
Nong - Rancho Cucamonga, CA 91730
Review
Good service on time
Ray - Rancho Cucamonga, CA 91739
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