Upland, CA Plumbing, Heating & Air Conditioning
Expert Plumber In & Around Upland
Plumbing problems are an instant headache and they seem to come up at the worst possible times. No one wants a broken toilet right before company arrives!
That is why Klaus & Sons has been Upland’s trusted plumber for over 40 years. Our Upland customers know that we can solve any plumbing problem.
We offer expert plumbing repair, installation and maintenance services for the Upland customer.
We offer emergency plumbing services 24 hours a day. Count on us to repair kitchen and bath plumbing issues, repair your broken toilet or sink and offer complete hot-water heater repair and installation. No job is too big or too small for our certified, experienced plumber
Plumbing & HVAC Services in Upland, CA FAQS
The most common plumbing repair is fixing leaks. Leaky faucets, pipes, or toilets are frequent issues that homeowners encounter. Typically caused by worn-out washers, damaged seals, or loose connections, these leaks waste water and can lead to water damage. Promptly addressing leaks with simple repairs or replacements can prevent further issues. While fixing leaks is a common DIY task, consulting a professional plumber is advisable for complex or persistent leaks to ensure a thorough and lasting solution.
The phasing out of gas furnaces is a possibility due to increasing emphasis on energy efficiency and environmental concerns. Some regions are implementing measures to transition to more sustainable heating options, such as electric or renewable energy-powered systems. However, the timeline for any phase-out varies by location and depends on evolving regulations and technological advancements. It's advisable to stay informed about local energy policies and consider more sustainable heating options as they become available and practical.
Changing or cleaning filters, inspecting and cleaning coils, checking refrigerant levels, lubricating moving parts, testing thermostat performance, and looking for leaks in the ductwork are all important parts of annual HVAC maintenance. Furthermore, make sure the system is operating properly, tighten connections, and verify electrical components. Expert technicians are able to carry out a thorough inspection, fix particular parts in accordance with system requirements, and spot possible problems before they become serious. Frequent maintenance ensures that the HVAC unit functions dependably and efficiently all year long by extending its lifespan, maximizing system efficiency, and preventing unplanned breakdowns.
If your AC leaks water in Upland, CA, first check if the condensate drain line is clogged and clear it if necessary. Ensure the drain pan isn't full or damaged. Inspect the air filter and replace it if dirty, as this can cause the coils to freeze and leak when they defrost. If the issue persists, contact a local HVAC professional to diagnose and repair the problem, ensuring proper operation and preventing further water damage.
Call the professional plumbers at Klaus & Sons Plumbing Heating & Air Conditioning in Upland, 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 • Upland Plumbing Experts
Upland Heating Services
Some of us can remember the few times that snowflakes briefly fell on northern Upland, but you don’t need to see snowflakes to know that it gets cold outside! 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 Upland 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 system replacement and give you an upfront, accurate estimate.
Call the professional HVAC technicians at Klaus & Sons Plumbing Heating & Air Conditioning in Upland, CA today for heating service or a free estimate!
Furnace Replacement • Heater Repair • Heat Pumps • Electric Or Gas Water Heater Replacement & Repair • Heating Maintenance • Thermostat Repair & Replacement • Upland Heating Experts
Upland Air Conditioning Services
Upland 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 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 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 Upland, 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 & Repair • Multi-Zone Air Conditioning Systems • Upland Air Conditioning Experts
Home Comfort In Upland, CA
Klaus & Sons offers these other essential services to homeowners in Upland, 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
Upland plumbing, heating and air conditioning customers can count on on-time service, skilled, professional HVAC and plumbing experts as well as a 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 Upland codes and building guidelines.
Recent Jobs and Reviews in Upland, CA
Customers say: The reviews exhibit a positive sentiment towards Klaus & Sons Plumbing, with many customers expressing satisfaction with their services. The positive reviews highlight the company's quick response, professionalism, and quality of work. Customers appreciate the technicians' knowledge, friendliness, and efficiency, with many mentioning their willingness to go above and beyond to ensure customer satisfaction. Additionally, customers praise the company's reliability, competitive pricing, and the ability to handle various plumbing issues. Negative reviews are present but are outweighed by the positive ones. However, the negative reviews mainly focus on specific incidents or experiences, with some customers expressing dissatisfaction with the initial service or the resolution of the issue. Overall, the reviews suggest that Klaus & Sons Plumbing provides reliable and high-quality plumbing services, with a majority of customers expressing satisfaction with their experiences.
Our Local Reviews by City
- Azusa, CA (1)
- Chino, CA (12)
- Chino Hills, CA (5)
- Claremont, CA (81)
- Covina, CA (4)
- Diamond Bar, CA (4)
- Fontana, CA (7)
- Glendora, CA (4)
- La Verne, CA (8)
- Monrovia, CA (1)
- Montclair, CA (9)
- Ontario, CA (29)
- Pomona, CA (14)
- Rancho Cucamonga, CA (57)
- San Dimas, CA (8)
- South Pasadena, CA (1)
- Upland, CA (138)
Job Locations and Reviews

10-12. Requested Sal. COD. Call when in route. Requested Sal. I spoke to Joyce, their garbage disposal is backed up and clogging on both sides of the sinks.

(12-2 REQ) COD. REQ James. Spoke with Charlene. She had a $300 increase in her water bill and is unsure if there are any leaks in her house. Her gardeners have checked the irrigation system and found a small leak, but they didn't think that it would cause the bill to jump that high. She is hoping that a plumber will be able to find any leaks inside the property she may not be seeing. Please get approval on any pricing BEFORE performing any work!

(10-12) COD. Spoke with William. He has a plugged up kitchen drain. Please get approval on any pricing BEFORE performing any work!

1-5. COD. Call when in route. I spoke to Forrest, their ac unit is not cooling down anymore, it just started happening. Their house has a brick lamp post in front of it.

11 - 2. Spoke to Russel. AC is leaking condensate or isn't draining properly. They have it in a closet in the house and found the floor around it wet. Quote $158 for diagnostic.

8-10. I spoke to Richard, they paid for the second year on the service agreement already! Please provide the maintenance on his unit.


12-2. COD. Call when in route. I spoke to Michael, the shower in the guest restroom is not giving any cold water when they turn the handle.

12-2. COD. Requested Sal. I spoke to Julia, the water valve handle broke and is leaking everywhere their back laundry room. She had to shut the water off in the mean time.

12-2. COD. Call when in route. I spoke to Sonya, they need help clearing their kitchen line, they said it backs up every so often and they have to remove the cap to get it to flow again, the dishwasher is also starting to back up again as well.

10-12. Requested Sal. Net 30. Call Brent at (626) 827-8434 if theres any questions. I spoke to Brent, they need a garbage disposal to be installed.

1 - 5. Coming back to install a condensate pump - WILL NEED HELPER
Good job as usual.

8 - 10 arrival. Customer approved! ALL DAY JOB PER MARIO. ALSO, Duane said that behind house, laundry line abs needs to be reburied it is sticking out, if you can do this too while there. Either add to this invoice or separate invoice. Provide pricing first.

Text Ron (909) 996-4860 when in route.

1 - 5. COD. Spoke to Margi. CALL IF SOMETHING OPENS UP SOONER!! - (909) 946-1697. She turned AC on yesterday for first time this year and it comes on but doesn't cool. Change batteries and everything. Age: at least 25 years old. Quoted $158 for diagnostic. UNIT IS ON ROOF PLEASE BRING A LADDER!!!

1 - 5 (REQ DAY). Spoke to Diana. AC went out. Only fan is on right now but not cooling. Said this happens every year or so. Quoted $158 for diagnostic.

9-12. COD. Call when in route. I spoke to Christopher, their ac unit is not blowing out cold air like it before. The unit is on the side of his house and he's not sure the age of the unit.

Edward called back and wanted to add on preventative maintenance on mini-split while you are here. Please provide pricing for this first. Also said that the issue below may just be the condensate line cause clogged. A piece of PVC pipe section, he said he honestly might fix it himself, but will let us know if he does.

12 - 2. Spoke to Sara. Amen & Andrew were out here on May 5th to install 2 faucets. She said that one won't retain water (stopper won't stop up) and then the other one is leaking... Sinks have 90-day warranty. Andrew is out on vacation so you will have to check this out 🥲

12 - 2 (TIME & DAY REQ). Spoke to Kerry. Thinks the shower valve needs to be replaced. No pressure for hot water but cold is fine. It's been worked on before but not by us and she thinks the guy just didn't do a great job. Please provide pricing before performing work!!

12 - 2. Spoke to Sara. Amen & Andrew were out here on May 5th to install 2 faucets. She said that one won't retain water (stopper won't stop up) and then the other one is leaking... Sinks have 90-day warranty. Andrew is out on vacation so you will have to check this out 🥲
Always professional and reliable


Always prompt, great job and clean up. Sal was wonderful!

12 - 2. COD. Spoke to Dawn. Had a bunch of people over this weekend that were using the bathrooms. She turned on dishwasher and toilet started bubbling and making noise… took a shower and shower started filing up, now there's water around toilet too. Please provide pricing before performing work!!

(2-4) COD. Spoke with Eileen, She has a water leak in her planter which she thinks is coming from her side of the main line. She would like to get an estimate on repair. Eileen mentioned that Wes did a similar job for her in 2021. Please get approval on any pricing BEFORE performing any work!
Same day service, fixed the problem, and answered all my questions!
Professional installation of Moen leak detection valve by Jake.
Over charged
Klaus & Sons has become my go to plumber. They are always responsive, arrive when promised, and the plumbers are friendly. No one has ever tried to up sale, just provided great service.
Excellent Service
A/C repair and recharge done quickly and at a fair price. Appointment made within the same week.
I have relied on Klaus & Sons to install and maintain my heating and air conditioning system for many years. They never disappoint. Friendly AND reliable.
Always reliable, honest and trustworthy!
We recently had Klaus and sons out for our annual air conditioning tuneup, and as usual they did a terrific job. David their service technician did outstanding job explaining the condition of our unit and answered all questions we had asked him. David provided us with a five star service. We have been dealing with Klaus and sons for several years and continue to be impressed with their service and their technicians.
Excellent service
Showed up on time and made suggestions on something we had questions on. Very neat and professional. Will use Klaus and Sons next time we need help.
Jake did an outstanding job!!!
Excellent service
I've always used Klaus and Sons for all my HVAC and plumbing problems. I find their price to be reasonable, service technicians professional and the workmanship always excellent. I find comfort in knowing I can always count on Klaus and Sons in time of need.
I was our first time with Jake we always had Chris in the past. Jake not disappoint!!! He took pictures of everything that needed to be done and showed the pictures and discussed everything with my wife so she knew exactly what he was doing and why. Very impressive!!!
Great experience with AC tune up service. I’ve used K&S for so many other services and this one was just as great. Great communication and no high pressure upsells. Just quality, honest work.
Needed a new A/C & they were able to deliver & install in less than a week.
was quick
Great Job!
On time, quick, clean
Mario is an expert in his field. Professional and trustworthy. Thank you for your service.
Great job done, fast repair, good price