Ontario, CA

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Ontario Plumbing, Heating & Air Conditioning Experts

Full Plumber Services In & Around Ontario

Ontario is one of the oldest communities in the Inland Empire. So much of Ontario has unique, historical homes and buildings. A special city needs a special plumber that can service, replace and help you maintain all the plumbing in your home – old or new. At Klaus & Sons, a trusted name in the industry, we’re proud to bring our expertise from Montclair, CA, to serve the thriving community of Ontario. With years of experience, we are committed to providing exceptional heating, cooling, and plumbing solutions to residents and businesses in Ontario.

Give us a call 909-982-5698 or fill out our contact form for immediate assistance.

Emergency Plumbing:

For those unexpected plumbing emergencies, Klaus & Sons is here to provide prompt and reliable emergency plumbing services. We understand that issues can arise at any time, and our experienced team is ready to assist you 24/7.

Air Conditioning Installation and Repair:

When the summer heat sets in, having a reliable air conditioning system is essential. Our team specializes in the installation and repair of energy-efficient AC units, ensuring you stay cool and comfortable when the temperatures rise. We’re here to make your home a haven from the summer sun.

Heating Installation and Repair:

Stay warm and cozy during the colder months with our expert heating installation and repair services. Whether you need a new heating system installed or require prompt repairs to your existing one, Klaus & Sons has you covered. Our skilled technicians ensure your home remains comfortable year-round.

Residential Plumbing Services:

From routine maintenance to complex plumbing issues, Klaus & Sons is your trusted partner for all your residential plumbing needs. Leaky faucets, clogged drains, and more – we’ve got the solutions to keep your water systems flowing smoothly.

Water Heater Repair & Replacement:

Our expert technicians are skilled in water heater repair and replacement services. We ensure your hot water needs are met, providing you with reliable access to hot water whenever you need it.

Why Choose Klaus & Sons:

  • Experienced Team: Our skilled technicians are highly trained and experienced in the HVAC and plumbing fields. You can trust us to provide efficient and reliable services.
  • Customer-Centric Approach: We value your satisfaction and work closely with you to meet your specific needs and budget.
  • Quality Products: We use top-quality products and materials, ensuring the longevity and effectiveness of our installations and repairs.
  • Emergency Services: We understand that heating, cooling, and plumbing issues can arise at any time. Our emergency services are available 24/7 to address urgent problems promptly.

Contact Us:

When you choose Klaus & Sons, you’re choosing excellence in HVAC and plumbing services. We’re dedicated to ensuring the comfort and functionality of your Ontario, CA property. For reliable, professional, and friendly service, contact us today at 909-982-5698 to schedule an appointment or request a quote. Klaus & Sons is here to make your life more comfortable, one service at a time.

Call 909-982-5698 the professional HVAC technicians at Klaus & Sons Plumbing Heating & Air Conditioning in Ontario, CA today for air conditioning service or a free estimate! 

Recent Jobs and Reviews in Ontario, CA

Rated 5.0 out of 5 stars based on 5 customer reviews

Our Local Reviews by City

Job Locations and Reviews

Ontario, CA - Contact Price Property Management at (909) 985-0539 for approval before starting work. Notify tenant Rocky at (909) 434-8152 when en route to fix the flooding toilet. Include work order details and specify COD payment with CC on file for seamless service.
Heather P.
Heather P. Checked in
Contact Price Property Management at (909) 985-0539 for approval before starting work. Notify tenant Rocky at (909) 434-8152 when en route to fix the flooding toilet. Include work order details and specify COD payment with CC on file for seamless service.
Ontario, CA 91762
Ontario, CA - Contacted Alex regarding their current backup situation. Scheduled James to go out on 11/1 for immediate assistance. Stay tuned for updates on our professional backup services to ensure your data is secure.
Heather P.
Heather P. Checked in
Contacted Alex regarding their current backup situation. Scheduled James to go out on 11/1 for immediate assistance. Stay tuned for updates on our professional backup services to ensure your data is secure.
Ontario, CA 91761
Ontario, CA - Contact Terri at (909) 988-5081 for plumbing services. She has a mama cat and kittens on her porch, so she will open the side gate for you. Bathrooms sinks draining slow, but service will resolve the issue efficiently.
Heather P.
Heather P. Checked in
Contact Terri at (909) 988-5081 for plumbing services. She has a mama cat and kittens on her porch, so she will open the side gate for you. Bathrooms sinks draining slow, but service will resolve the issue efficiently.
Ontario, CA 91762
Review
Service was excellent but the pricing is outrageous. I provided the faucet, Jake was here for approximately 2 hours and the bill was $739.74. That is over $350.00 an hour. Can you please doublecheck the bill and verify that that $739.74 is correct.
Mary - Ontario, CA 91761
Ontario, CA - Looking for a quick and efficient bathroom faucet installation service? Look no further! Mary has exactly what you need. Contact us today to schedule an appointment between 12-2 and have your new faucet up and running in no time.
Heather P.
Heather P. Checked in
Looking for a quick and efficient bathroom faucet installation service? Look no further! Mary has exactly what you need. Contact us today to schedule an appointment between 12-2 and have your new faucet up and running in no time.
Ontario, CA 91761
Ontario, CA - Looking for a quick fix for your broken shower handle? Grace recently spoke to us about her broken shower handle and we were able to replace it in no time. Our reliable and efficient service will have your shower looking good as new in no time.
Heather P.
Heather P. Checked in
Looking for a quick fix for your broken shower handle? Grace recently spoke to us about her broken shower handle and we were able to replace it in no time. Our reliable and efficient service will have your shower looking good as new in no time.
Ontario, CA 91761
Ontario, CA - If your toilet model does not work with any universal flapper and the current one gets stuck on fins under the flush opening, it may be time to consider replacing the entire toilet for better performance. Don't struggle with incompatible parts, invest in a more suitable model for efficient service.
Heather P.
Heather P. Checked in
If your toilet model does not work with any universal flapper and the current one gets stuck on fins under the flush opening, it may be time to consider replacing the entire toilet for better performance. Don't struggle with incompatible parts, invest in a more suitable model for efficient service.
Ontario, CA 91761
Ontario, CA - Need a water heater installed in your home? Adrienne has approved it for 8-12. Contact (949) 677-1093 for top-notch service.
Heather P.
Heather P. Checked in
Need a water heater installed in your home? Adrienne has approved it for 8-12. Contact (949) 677-1093 for top-notch service.
Ontario, CA 91761
Heather P.
Heather P. Checked in
I completed a routine maintenance service on a Goodman HVAC system for a residential home. I replaced the air filters, cleaned the evaporator coil, and checked the refrigerant levels. I inspected the outdoor condenser unit and cleaned the fan blades. The system was recharged with R-454B (Opteon XL41), ensuring proper airflow and thermostat calibration.
Ontario, CA 91761
Ontario, CA - When it comes to replacing rusty pipes under the sink, Chris is the expert to call for top-notch service. Trust Chris to handle all your plumbing needs with precision and efficiency. Contact Chris now for a reliable solution to your bathroom plumbing issues.
Heather P.
Heather P. Checked in
When it comes to replacing rusty pipes under the sink, Chris is the expert to call for top-notch service. Trust Chris to handle all your plumbing needs with precision and efficiency. Contact Chris now for a reliable solution to your bathroom plumbing issues.
Ontario, CA 91764
Ontario, CA - Need help with COD between 8:40-10? Hia Tieu had a gas leak in their water heater, but Gas Co quickly detected it and turned off the gas. Get professional leak detection starting at $245.00. Fix your gas issues fast with our expert services.
Heather P.
Heather P. Checked in
Need help with COD between 8:40-10? Hia Tieu had a gas leak in their water heater, but Gas Co quickly detected it and turned off the gas. Get professional leak detection starting at $245.00. Fix your gas issues fast with our expert services.
Ontario, CA 91762
Ontario, CA - "Please cc this email to Jmdiaz@kleinfelder.com for efficient communication. Trust Kleinfelder for expert services in engineering, environmental, and construction management. Contact us today for top-notch solutions."
Heather P.
Heather P. Checked in
"Please cc this email to Jmdiaz@kleinfelder.com for efficient communication. Trust Kleinfelder for expert services in engineering, environmental, and construction management. Contact us today for top-notch solutions."
Ontario, CA 91762
Review
James did a nice job on a long overdue new Moen kitchen faucet installation. A ceramic disc cartridge is the way to go with today's modern faucets especially if you have hard water. They're easy to install, but my arthritic body said let Klaus & Sons do it. They stock and install new water heaters, but for faucets or utility sinks you must purchase elsewhere and they'll install it for you.
Patrick - Ontario, CA 91764
Heather P.
Heather P. Checked in
For quality home renovation services, contact Eclecticgroup@msn.com! Our team specializes in creating unique and aesthetically pleasing spaces tailored to your needs. Reach out today for a consultation.
Ontario, CA 91764
Heather P.
Heather P. Checked in
Mary received the hose for her kitchen faucet, thanks to Chris. The installation process is set to begin soon. Get quality faucet replacement services like this and more.
Ontario, CA 91764
Review
Couldn’t ask for better service!!
Greg - Ontario, CA 91764
Heather P.
Heather P. Checked in
I was called to address a leak in a bathroom sink. Upon inspection, I found that the leak was coming from a worn-out P-trap under the sink. I replaced the damaged P-trap with a new PVC model, ensuring a secure fit to prevent future leaks. After completing the repair, I tested the sink for any remaining issues and confirmed the leak was resolved. The system is now functioning properly with no signs of water damage.
Ontario, CA 91761
Heather P.
Heather P. Checked in
I completed a faucet installation for a customer, replacing an outdated unit with a new Moen single-handle faucet. I first shut off the water supply and removed the old faucet, checking for any leaks or damage in the surrounding plumbing. After installing the new Moen faucet, I connected the water lines and secured all fittings. I tested the faucet to ensure proper water flow and checked for any leaks. The installation was successful, and the faucet is functioning smoothly.
Ontario, CA 91764
Heather P.
Heather P. Checked in
Contact Greg at (909) 459-9199 between 11:30 - 1pm for AC service. Fernando spoke to Greg about his AC turning on/off. Bring 2 thermostats for installation. Trust Greg to provide quality service across the street from Fernando's location.
Ontario, CA 91764
Heather P.
Heather P. Checked in
Our customers enjoy peace of mind with confirmed appointments for our premium car detailing service. Experience the convenience of hassle-free scheduling and expert care for your vehicle. Book your appointment today for a sparkling clean car inside and out.
Ontario, CA 91761
Heather P.
Heather P. Checked in
Looking for vehicle repairs or maintenance? Visit our mechanic Jesse's property and speak to Jesse or Tim for details. Find out more about the services offered by contacting Courtney for a full name.
Ontario, CA 91764
Heather P.
Heather P. Checked in
Contact Annabelle at (909) 390-9906 ext 212 for plumbing services from 12-2. She needs a tech to address a constant toilet leak at the base. Annabelle is the point of contact and wants a call when the technician arrives.
Ontario, CA 91761
Heather P.
Heather P. Checked in
Ensure your HVAC system is running efficiently with our thorough cleaning services. Our team has been servicing units since 2007, including regular maintenance to keep your home comfortable year-round. Contact us today for a cleaning appointment!
Ontario, CA 91764
Heather P.
Heather P. Checked in
Looking for quality landscaping services in the (909) area? Call (909) 638-6760 for expert assistance with all your landscaping needs. From design and installation to maintenance, we are your one-stop solution for a beautiful outdoor space. Contact us today for a consultation!
Ontario, CA 91762
Heather P.
Heather P. Checked in
Our professional technicians specialize in air conditioning repair and installation. From faulty thermostats to leaky ducts, we have the expertise to keep your home cool and comfortable. Trust our team to provide efficient and reliable service.
Ontario, CA 91762
Heather P.
Heather P. Checked in
If your AC is blowing hot air, our expert technicians can help. We provide high-quality AC repair services to ensure your home stays cool and comfortable. Contact us today for a quick and efficient solution to your cooling problems.
Ontario, CA 91764
Review
Klaus and Sons gives over and beyond the service that is needed The technicians involved are always informative and very productive You can't go wrong with Klaus & Sons
Linda - Ontario, CA 91761
Heather P.
Heather P. Checked in
If you're experiencing a leak in your outside water line going into your house, our team can help. Michael noticed a drip that turned into a burst PVC pipe squirting water onto his house. Contact us for fast and efficient repair services.
Ontario, CA 91764
Review
David was prompt, knowledgeable, and fixed our AC quickly. Very professional and friendly.
RUDOLPH/ - Ontario, CA 91761
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