*The Angi rating for Water Softener Service companies in Monrovia, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.
*The HomeAdvisor rating for Water Softener Service companies in Monrovia, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Softener Service needs.
Last update on November 21, 2025
Serving Monrovia, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Very happy with my new 3-stage whole house water filter/installation - topnotch!!!"
Serving Monrovia, CA and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
"Brad and his team were transparent, thoroughly professional. Brad took his time to explain different solutions and competitive offerings, he went over and beyond to make sure customer satisfaction. Will hire them in a heartbeat if I ever need another water softener system."
+14
Serving Monrovia, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"Western Rooter to the rescue again! I had a small underground leak which appeared to be due to a bad sprinkler valve. A sprinkler repair company determined that it was not a bad sprinkler valve and thought it was due to a leak in the main water line. Daniel and Alex dug down to find that the leak was coming from a very old (at least 36 years) broken pvc line. After much testing and head scratching to try to figure out where the water was coming from, they decided to "chase the pipe." After much digging, they found that the very old broken pvc pipe was hooked up to a sprinkler valve that was buried 18 inches underground that had not been capped--only turned off. Roots from a nearby tree had opened the valve which caused the leak--crazy! The current sprinkler system has been the same one since we moved into the house in 1988. It took 36 years for the underground leak to occur!"
+542
Serving Monrovia, CA and surrounding areas
Approved
In business since 1978
Free estimates
Emergency services offered
"SERVICE IS GOOD AND PROFESSIONAL."
+3
Serving Monrovia, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
Flash Plumbing and Services provides professional residential plumbing services, including leak repairs, faucet replacements, water heater repair and installation, and emergency plumbing solutions.\nOur licensed and highly trained technicians use advanced diagnostic tools and modern plumbing techniques to accurately identify issues and complete repairs efficiently.\nWe are committed to serving our community with affordable plumbing services, transparent pricing, and dependable workmanship homeowners can rely on.\nContact Flash Plumbing and Services today to schedule a consultation with a trusted local plumbing professional.
+1
Serving Monrovia, CA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Kayvan was a wonderful service tech! He was on time and professionally checked out the water heater and the HVAC system. He was so polite and friendly. He explained the need for a new filter in the heating unit and showed me photos of the unit located in the attic. He also offered to do a friendly deed for free, which I greatly appreciated, He’s a great asset to Service Champions!"
+13
Serving Monrovia, CA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Jeff Seale at Accurate Electrical Service was the most attentive, considerate, professional electrician I have ever met. I would highly recommend him and will definitely use him for future projects. Thank you for the reference."
+24
Serving Monrovia, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
With 50 years of combined experience, we at Pure Water Filtration pride ourselves on being the best in the industry. Our ability to design and install complex projects separates us from our competitors. We do everything from simple installs such as residential reverse osmosis to more complex commercial multi-unit apartment buildings or well water treatment. For pure, healthy water, we have a solution for any budget. We use American-made products, allowing us to offer the best warranties in the industry. All of our products meet NSF and ANSI standards. Pure Water Filtration has a close relationship with the California State Drinking Water Program and local testing laboratories. We guarantee you will be satisfied when choosing Pure Water Filtration as your go-to water treatment specialist.
+3
Serving Monrovia, CA and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
Don't trust your property to a less qualified team. Contact our highly trained experts for quality service.
Serving Monrovia, CA and surrounding areas
In business since 2006
Free estimates
Emergency services offered
"After speaking with Kevin (CEO) about the merits of the One Water System, and my own online followup, I bit, and was scheduled for installation 5 days later. Juan, the installer was on time, courteous, self-effacing, humorous, knowledgable and highly skilled. He replaced the ugly functioning plumbing (piping) with a more contoured professional appearance. After the system instalation, function test, old water softener packed and area cleaned. I was given an outline of positives results to look for. And, as of 2 weeks after installation, I am very pleased with results. Faucet run faster, wife says hair and skin feels better. Good professional results from beginning to end.
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+11
From average costs to expert advice, get all the answers you need to get your job done.
How much a water softener costs in Los Angeles, CA, depends on your home’s size and the system’s type and capacity. Our expert guide explores all the price factors.
Learn about water filtration system costs in Los Angeles, CA, key cost factors, and ways to save on installation and maintenance for your home.
Water softeners remove minerals from hard water in your home and make your water more pleasant to use. Learn more about how they work here.
Water softeners work to remove unwanted minerals from hard water through a filtration and recharge cycle. Keep reading to learn how a water softener works.
There are four common softener alternatives available on the market today. We compare and contrast each one to help you find your best-fit solution in this blog.
Water softeners rid your home of hard minerals and, well, soften your water. Even better, the regeneration process is an automatic cycle that works when you’re least likely to use it.
