plumbing disaster? Are you in need of sewer line repair? Call Ontario’s professional plumbing team.

Ontario Plumbing Heating & Air Conditioning

  Ontario 91758, 91761, 91762, 91764

Let the Ontario professionals at Klaus & Sons save the day! 

Ontario plumbing-Ontario air-conditioning-Ontario heatingOntario Plumbing

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

We offer expert plumbing repair, installation and maintenance services for the Ontario customer. Don’t let a clogged toilet, a broken water heater or 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 broken sink 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 Ontario, 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 and Bathroom Sink Installation • Low Water Pressure Services • Plumbing Repair Services • Plumbing Valve Repairs • Re-Piping Services • Copper Re-Piping • Tankless Water Heater Services • Ontario Plumbing Experts


Ontario Heating

Do you have a broken heater? Perhaps your heater simply doesn’t do the job anymore, or you notice that your utility bills keep climbing. We can service and repair your heater, no matter what brand is in your home or how old your unit may be. Our factory trained heating technicians have been serving the Ontario area for over 40 years. Every heating system is a little different, and 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 system replacement and give you an upfront, accurate estimate.

Call the professional HVAC technicians at Klaus & Sons Plumbing Heating & Air Conditioning in Ontario, 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 • Ontario Heating Experts


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(909) 982-5698

Ontario Air Conditioning

After a long day at work, you count on being able to cool off in the comfort of your own home. It’s frustrating when your system can’t cool you down. 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 needs to be done right the first time. No one wants to be stuck in his or her home or business without AC on a hot 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 Ontario, 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 • Multi Zone Air-Conditioning Systems • Ontario Air-Conditioning Experts


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

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

Ontario plumbing, heating and air-conditioning customers can count on on-time service, 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 Ontario codes and building guidelines.

Important Local Service Numbers

Southern California Edison: (800) 655-4555  • Southern California Gas Company: (800) 427-2200 • Dig Alert:Underground Service Alert: Call 811 or www.digalert.org/statelaw.html • Verizon: (800) 483-4000 • Time Warner Cable: (888) 892-2253 • Frontier: (800) 921-8101 • Klaus and Sons HVAC: (800) 440-2017 • Klaus and Sons Home Energy Upgrade: (909) 982-5698 • Klaus and Sons Plumbing:  (800) 440-2017 • Klaus and Sons Drain Cleaning: (909) 982-5698

KLAUS & SONS SERVICE AREAS

FREE ESTIMATES FOR ALL YOUR PLUMBING, HEATING & AIR CONDITIONING SERVICES

Alta Loma • Azusa • Charter Oak • Chino • Chino Hills • Claremont • Diamond Bar • Fontana • Glendora • La Verne • Montclair • Ontario • Pomona • Rancho Cucamonga • San Dimas • Upland • Walnut