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, with a majority of customers expressing satisfaction with the services provided by Klaus & Sons. The recurring themes include praise for the quality of work, professionalism, reliability, and excellent customer service. Customers also appreciate the technicians' expertise, friendliness, and respect shown to senior women. The positive reviews highlight the company's efficiency, promptness, and ability to address various HVAC issues. Additionally, customers mention the company's commitment to using high-quality products and their willingness to go the extra mile to ensure customer satisfaction. Overall, the reviews convey a sense of trust and confidence in Klaus & Sons as a reliable and trustworthy HVAC service provider.
Our Local Reviews by City
- Chino, CA (8)
- Chino Hills, CA (3)
- Claremont, CA (50)
- Covina, CA (3)
- Diamond Bar, CA (3)
- Fontana, CA (5)
- Glendora, CA (3)
- La Verne, CA (7)
- Monrovia, CA (1)
- Montclair, CA (4)
- Ontario, CA (15)
- Pomona, CA (11)
- Rancho Cucamonga, CA (38)
- San Dimas, CA (4)
- South Pasadena, CA (1)
- Upland, CA (101)
Job Locations and Reviews

Rescheduled to 2-4pm today with Sal - CONFIRMED! Jennifer will be the POC, (626) 485-1851 ☺️


Now. Per Jesse: Smell in bathroom. He spoke to Chris for Holliday rock.

3-5. I spoke to Gregory, Jeromes son, (909) 472-5927. They need the wax ring replaced on their toilet as they have a really fowl odor coming from it. Wes left an estimate a few weeks ago for an entirely new toilet but they just need the wax ring done.
Always the very best service! We’ve been customers for 30+ years now and you are the most professional trade we have ever had working on a home!

10 - 12. Spoke to Tom. Clogged bathroom sink - tried snaking it through roof vent and sink, turned into very slow drain. Please check out and provide pricing before performing any work 🙂 Wife will be on-site.
Thanks for coming so quickly!!! I was amazed and very pleased

3 - 5. COD. Spoke to Joseph. 3 leaky faucets: 1 in bathtub, 1 shower diverter in that bathroom and 1 sink in utility room that’s leaking. They can turn them off but has to turn it really really tight.

3 - 5. Susan called back and said she is home, her phone is on now.


8 - 10. REQ Jake. COD. Spoke to Richard. He said he is having a toilet issue, he said it needs to be re-caulked but he's old and can't do it.

Sewer back up

3 - 5. Spoke to Nikki. We were out here in February for a maintenance. Her furnace just stopped working. Won't turn on at all. Please check out and give pricing before performing any work!!

12 - 2. Per Wes: Toilet is in, coming back to install.


12 - 2. Spoke to Melissa. Her water heater pilot light is not staying on. No hot water. Her Family friend came to check it, re-lit on Saturday, didn’t work again… We installed this w/h back in 2010. Melissa is the new owner, but we have done a lot of work at this property before. Old water heater install is job #22240, 50-gallon w/h.


12 - 2. Spoke to Melissa. Her water heater pilot light is not staying on. No hot water. Her Family friend came to check it, re-lit on Saturday, didn’t work again… We installed this w/h back in 2010. Melissa is the new owner, but we have done a lot of work at this property before. Old water heater install is job #22240, 50-gallon w/h.

Mainline back up. Returning April 21’st to hydro jet line

12 - 2. Per Amen: Leak coming from drain pipe when water is being ran in restroom

(1-5) Req David. Spoke with Kathleen. *NEW MEMBER* David, please make sure you service BOTH AC & Furnace components/units. They are now gold members. They have already paid $235 for this membership. Please remember they get 10% off any repairs, filters, or refrigerant due to being a member of the service agreement plan!

8-12. COD. Requested David. Text when in route. I spoke to Doug, their ac unit is not working properly and the thermostat keeps bugging out on them. It turns on but doesn't do anything and that turns off and keeps repeating that.

Sewer back up

3 - 5. COD. Spoke to Sherry. This is her dad's home. Fernando was out here on April 1st for intermittent furnace. Sherry said that it is still having issues. Heater will come but then kicks off after 5 minutes or so. Sherry - (909) 225-4604, she is POC and in charge of payment, she will be on site too. Dad will be home though. I let her know it is under that 90 day warranty if it is a related issue to last time, and if not it may be a charge.

10 - 12. Spoke to Mary. Possible call-back? This is for their little house on the corner, she had us repair the toilet last time we were out, said it's not repaired, toilet is still cycling, and faucet isn’t working. Might be under warranty still, please check out.

10 - 12. Spoke to Lorice. She thinks she has mold in the sink, it is around the drain on bottom of sink. She would like the drain where the mold is, drain taken out and replaced. Please provide pricing before performing any work!


(8-10) COD. Spoke with Eric. He has a toilet that's constantly running and would like to get it checked. He would also like to get the insides of the tank looked at to make sure everything looks good to go! Please get approval on any pricing BEFORE performing any work!

10 - 12. Spoke to Mary. Possible call-back? This is for their little house on the corner, she had us repair the toilet last time we were out, said it's not repaired, toilet is still cycling, and faucet isn’t working. Might be under warranty still, please check out.

10 - 12. Spoke to Lorice. She thinks she has mold in the sink, it is around the drain on bottom of sink. She would like the drain where the mold is, drain taken out and replaced. Please provide pricing before performing any work!


(8-10) COD. Spoke with Eric. He has a toilet that's constantly running and would like to get it checked. He would also like to get the insides of the tank looked at to make sure everything looks good to go! Please get approval on any pricing BEFORE performing any work!
Great service
Quick service to install new toilet and angle valve. Courteous and friendly plumber showed up and even hauled away old pot.
Customer satisfaction
SUPER RESPONSIVE
Excellent customer service
Wes always does a great job!
Thank you so much for taking the time to leave an excellent rating. We really appreciate your business.
Klaus & Sons is a VERY reliable company with great employees. I really appreciated Jake's knowledge and skill in handling my repair.
We are so grateful for your 5-star review. Thanks for sharing your rating with us and the community.
Klaus and sons are the best in the area. Always on time - polite and professional.
We’re delighted to hear about your recent experience with us and we’re so pleased that you recommend our services.
Expert service
We are so grateful for your 5-star review. Thanks for sharing your rating with us and the community.
The employees go above and beyond. I love this company.
We’re delighted to hear about your recent experience with us and we’re so pleased that you recommend our services.
Excellent service
Great Service
Very nice and through!
We have used you for years. Always excellent service. Would never use anyone else
Friendly and respectful
Mario was our technician and was very professional and knowledgeable. Thank you for you service.
Went the extra mile to help!
They are always there for us! Went used you in many occasions and have never been disappointed!
Quick to arrive; excellent work.
Very friendly service, on time and answered all my questions. Outstanding!
Well done
Make sure you buy your own fixtures or service over priced.
Perfect service