Top Plumber & HVAC Contractor In Rancho Cucamonga, CA

Contact Us

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 59 customer reviews

Customers say: The reviews exhibit a positive sentiment, with many customers expressing satisfaction with the services provided. Positive reviews frequently mention aspects such as professionalism, punctuality, expertise, and excellent customer service. Customers also appreciate the quality of the work, the efficiency of the repairs, and the friendly and respectful attitude of the technicians. Additionally, there are mentions of reliability, trustworthiness, and the ability to handle various plumbing issues. Negative reviews are present but are less frequent and tend to focus on specific issues or experiences. However, the overall tone remains positive, with many customers expressing gratitude and recommending the services to others.

Our Local Reviews by City

Job Locations and Reviews

Rancho Cucamonga, CA - 10-12. Brittany sent in a work order it is attached. There is a partially closed valve located in the street. Please let them know the estimate before doing any work.
Heather P.
Heather P. Checked in
10-12. Brittany sent in a work order it is attached. There is a partially closed valve located in the street. Please let them know the estimate before doing any work.
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
The water heater in pool area vent detached so had to turn it off. Also, in the women's restroom there, the flushing mechanism might need to be replaced, not working. Get approval before performing any work.
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
They have a leak coming from one of the connections behind the fridge. They would like to get it repaired or have the line replaced if needed. Please get approval on any pricing before performing work.
Rancho Cucamonga, CA 91737
Heather P.
Heather P. Checked in
They need a toilet seat to be installed, they have one on hand already.
Rancho Cucamonga, CA 91739
Heather P.
Heather P. Checked in
Per Jesse send Andrew to clear out womans restroom back up.
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
Tankless Takagi w/h we installed 2017 (I see no record of). Code 391 possible flame sensor.
Rancho Cucamonga, CA 91739
Heather P.
Heather P. Checked in
They had an ac unit installed by us last year in 2024, and where the unit is located, she said it's blowing out weird?
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
LISA SIGNED UP FOR PLAN, PERFORMING FIRST FULL SYSTEM MAINTENANCE TODAY
Rancho Cucamonga, CA 91701
Review
Original installation had a problem with thermostat and we had to try a couple times, but Raoul took over and he was great. Found the problem and fixed it. He was very knowledgeable, patient and explained everything. We are now very happy.
John - Rancho Cucamonga, CA 91701
Review
The best service
Thomas - Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
He is a new customer and is the homeowner. His dishwasher line is clogged and he would like to get it cleared.
Rancho Cucamonga, CA 91730
Heather P.
Heather P. Checked in
They bought a new thermostat and want Raul to come back and install it.
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
Call when in route. They need the faucet to their shower to be fixed as it is broken.
Rancho Cucamonga, CA 91739
Heather P.
Heather P. Checked in
He has a toilet leak and can't seem to find the right sized connector to fix it. Said it's a pretty fast leak, had gone to home depot to fix it himself but can't find the right item. Turned off water to toilet. Please call if something opens up sooner!
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
Leak next to water meter
Rancho Cucamonga, CA 91701
Heather P.
Heather P. Checked in
On hold pending install, gave info to Dan.
Rancho Cucamonga, CA 91730
Rancho Cucamonga, CA - Per Jesse: Send Joel & James
Heather P.
Heather P. Checked in
Per Jesse: Send Joel & James
Rancho Cucamonga, CA 91730
Rancho Cucamonga, CA - Leaking faucet at front of house where hose connects.
Heather P.
Heather P. Checked in
Leaking faucet at front of house where hose connects.
Rancho Cucamonga, CA 91730
Review
The installer was slightly late but we received a call ahead that explained he might be. Installer was polite, worked quickly, everything was left clean. Overall excellent.
John - Rancho Cucamonga, CA 91701
Review
Thanks so much for the friendly, quick, thorough service when our AC threw an error code.
Laura - Rancho Cucamonga, CA 91701
Review
Fantastic customer service
MIKE - Rancho Cucamonga, CA 91739
Review
He knows what he doing and did it very well and fast.
Martin - Rancho Cucamonga, CA 91701
Review
Excellent
Mark - Rancho Cucamonga, CA 91737
Review
Jake is great appreciative of his service
Rick - Rancho Cucamonga, CA 91701
Review
Prompt and professional service.
Sue - Rancho Cucamonga, CA 91701
Review
Heather
James - Rancho Cucamonga, CA 91737
Review
Your Technician, James was very professional and very polite. He has great people skills. He answered all our questions. Thank you Klaus & Sons Plumbing. 🤩
Jan Cottle - Rancho Cucamonga, CA 91701
Review
Excellent service!
Julie - Rancho Cucamonga, CA 91701
Review
Heather was great and helped me get someone out to my house within the hour!
Benjamin - Rancho Cucamonga, CA 91701
Review
Klaus always comes through and fixes the problem. They are awesome!!
Zoe - Rancho Cucamonga, CA 91737
Response from Klaus & Sons Plumbing, Heating & Air Conditioning:

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

Review
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!
John - Rancho Cucamonga, CA 91701
Review
I can always count on Klaus and sons for excellent work and on time.
Judy - Rancho Cucamonga, CA 91701
Review
Saul stayed in communication, explaining progress and had a very good customer interaction.
Greg - Rancho Cucamonga, CA 91730
Review
with such a short notice, and a weekend, kiinda amazing how they responded at once.
Agnes - Rancho Cucamonga, CA 91701
Review
Excellent service!
Bryant - Rancho Cucamonga, CA 91701
Review
Always reliable & helpful & it’s wonderful to have a business like Klaus in your corner.
Shelley - Rancho Cucamonga, CA 91701
Review
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!
Zoe - Rancho Cucamonga, CA 91737
Review
EXCELLENT SERVICE
Steve - Rancho Cucamonga, CA 91739
Review
Helpful, Friendly and Professional staff member.
Paula - Rancho Cucamonga, CA 91730
Response from Klaus & Sons Plumbing, Heating & Air Conditioning:

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

Review
Always a professional, clean and reliable. Thank you for another great job completed successfully.
Christopher Seymour - Rancho Cucamonga, CA 91737
Response from Klaus & Sons Plumbing, Heating & Air Conditioning:

Thank you so much for your 5-star review! We will share this with the team to let them know to keep up the amazing work!

Review
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
Chris - Rancho Cucamonga, CA 91737
Review
Excellent service
Ian - Rancho Cucamonga, CA 91730
Trusted Quality &
Service
  • Lenox Logo
  • Upland Chamber Of Commerce
  • Nate Certified Badge
  • Google Guarnatee Badge
  • Bbb A Plus Accredited Buisness
Gravity Forms Pagination Must be Steps