4.8 
37 *The Angi rating for Water Softener Service companies in Castaic, 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 Castaic, 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 June 20, 2026
Serving Castaic, CA and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
"The installers did a great job and proposed solutions for placement of the softener units so they were not intrusive. Our water quality is dramatically improved!"
+14
Serving Castaic, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"Found me the right size water heater, a few days before Thanksgiving and had it installed within 2 hours. Clean and efficient and Bradford White gas water heaters are American made. Built to last. Daniel Westereng did a great job with the install. Clean, fast, thorough and polite."
+542
Serving Castaic, CA and surrounding areas
Approved
In business since 1947
Free estimates
Warranties offered
"Technician was on time, answered all our questions, cleaned up after, and had a great attitude. Love the taste of our water now!"
Serving Castaic, CA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Great experience. Brandon is the best"
Serving Castaic, CA and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"They completed several projects for me and all were done exceptionally. Highly recommend."
+8
Serving Castaic, 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 Castaic, CA and surrounding areas
Approved
In business since 1939
Free estimates
Emergency services offered
Established in 1939, we do residential HVAC and plumbing the right way, not the easy way. At Goettl, we are total home comfort solution providers, enhancing the quality of life in the communities we serve. As Sadie Certified professionals, equipped with cutting-edge tools and technology, we deliver a superior customer experience, one home at a time.
+8
Serving Castaic, CA and surrounding areas
In business since 2006
Free estimates
Emergency services offered
""One Water" employees are professional and courteous. System was installed in a few hours. It's been 2 weeks since we got the unit installed and we are happy with the quality of water that we are now able to get from every faucet in the house."
+11
Serving Castaic, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Finally an honest Solar company!! I went through several companies trying to get quotes for one of my properties, either they were ridiculously expensive or they didn't return my calls. A friend of mine referred me to Mega Sun and I have to say I am very pleased. Within a couple days from the initial phone call I already had an estimate and once i decided to go with them the installation was completed in one week. Its been a little over a month since they completed the install and everything is working smoothly.
I was amazed at just how great the customer service was. I just want to say thank you to the whole team who helped out, I really appreciate all your hard work. Now I know you guys are the ones to call for all future jobs."
+32
Serving Castaic, CA and surrounding areas
In business since 2004
Free estimates
Emergency services offered
"It went well The man gave us a cd explaining how our plumbing works and if there was any work that will need to be completed in the future.
"
+10
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.
