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Klaus & Sons

Local Plumbing • Heating • Air-Conditioning

Klaus & Sons are your local licensed and insured (CSLB #320990) family-owned plumbing, heating and air-conditioning experts. We provide local residential and commercial HVAC (Heating, Ventilation and Air-Conditioning) and plumbing services 24 hours a day by expert, trained technicians.

Along with our experienced technical staff, we have a courteous and professional office that can answer questions and help you with all your service, maintenance and installation needs. We repair all brands, makes and models of HVAC equipment.

Klaus & Sons has been serving Upland and the surrounding communities for over four decades. We pride ourselves on providing every customer an excellent experience.

Services
  • 24-Hour Service
  • Commercial and Residential Service
  • Free HVAC Estimates
  • Free Air-Conditioning, Plumbing & Heating Estimates
  • Utility Bills Savings
  • Hero Program Financing
  • Energy Upgrade California Rebates
  • Energy-Efficient Upgrades
Repairs
  • All Plumbing Repair Services Available
  • Repair Replace & Install Furnaces
  • Repair Heating & Air-Conditioning
  • Leaking Air Conditioner Repair, Freon Charging
  • Split System Repair & Replace
  • Condensate Install & Repair
  • Highly-Trained Technicians
Installations
  • Install Complete Heating & Air-Conditioning Systems
  • Attic Insulation
  • Install Digital Thermostat
  • Wi-Fi Thermostat Install
  • Humidifier Installation
  • Split System Repair & Replace
  • Heating and Cooling Package Units
  • Rooftop Heating and Cooling System Installation
  • Install & Relocate Air Conditioner
  • HVAC Replacements
  • High-Efficiency Heating & Cooling Systems

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

contact-klaus-and-sons
  • Our technician, Tyler, was friendly and knowledgeable. Service was clean, fast and the office was helpful and kind.

    Bruce H. Rancho Cucamonga
  • Our technician was thorough and courteous and answered all of our questions. We are repeat customers.

    Joanne H. Pomona
  • I cannot believe how honest you guys are! Marino installed a new water heater, he was so helpful. He, Wes and Gene are awesome!

    Kristin F. Glendora
  • Fred was professional and courteous. Thank you for traveling to Mt. Baldy, it is appreciated. The service was very good, fast and the office staff was helpful and kind.

    Elna H. Mt. Baldy
  • Klaus & Sons continues to take excellent care of all our plumbing needs, as they have for decades.

    Betty P. Alta Loma
  • Andrew was polite,  knowledgeable and we received excellent customer service.

    Donna D. Upland
  • Very good service! We were well pleased. Tifanny was very helpful.

    Fred G. Upland
  • Our technician, Wes, was a happy hard-working, thinking tech. Clean, fast. We are repeat customers.

    Allen F. Upland
  • We referred our neighbors. Andrew was very informative and nice.

    Sherry H. Upland
  • Our technician was Fred. We were very impressed with the service, especially with Fred, who is very professional. You should be very proud of him he is a great asset to your company.

    Ann P. Upland

ABOUT US

More reasons to call Klaus & Sons…

 

HIGHLY-TRAINED STAFF

Klaus & Sons has highly-trained and product-knowledgeable technicians to make sure every service call is done right the first time. We also pride ourselves on our friendly and professional customer service staff.

ON-TIME APPOINTMENTS

We respect our customers’ time and always arrive to our residential and commercial appointments on time.

ONGOING EDUCATION

Our technicians undergo ongoing education to ensure that the latest industry practices and standards are strictly adhered to. We offer state-of-the-art techniques and products that are designed to last.

24-HOUR-A-DAY SERVICE

Klaus & Sons has a 24-hour-a-day answering service, making after-hours contact simple. We understand that many plumbing, heating and air-conditioning issues don’t happen during regular business hours and we are here for every emergency call.

CLEAN AND PROFESSIONAL

We respect all working environments and will leave your home or business clean. Our professional technicians work as cleanly and efficiently as possible to make sure that you can get life back to normal quickly.

GUARANTEED SERVICE

Klaus & Sons offers a 100% guarantee, which means our job is not finished until you are completely satisfied. You will have peace of mind knowing that you’ve selected a company that is committed to getting the job done right.

 Request a service by an expert technician…