4.7 
18 *The Angi rating for Water Softener Service companies in Los Osos, 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 Los Osos, 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 May 26, 2026
Serving Los Osos, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Amazing service and they apologies for eco waters poor work installing water softener system"
Serving Los Osos, CA and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"The job was done well. The repairman was very nice. He completed the work in a timely manner and left the bathroom spotless. I have already recommended 4G’s Plumbing to the Manager of my Mobile home park and my next door neighbor. I will definitely use this company for any future plumbing needs"
Serving Los Osos, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"This project is not yet completed - but initial phase was completed very satisfactorily - inquiry for info and explanation of my current situation regarding my Septic Tank"
+1
Serving Los Osos, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Free estimates
Emergency services offered
"They were upfront about pricing. Got it done with no extra charges. Very efficient"
Serving Los Osos, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
With over 30 years of hands-on experience in the plumbing and construction industry, Mission Mechanical Plumbing Inc provides top-tier residential and commercial plumbing solutions tailored to your needs. From routine repairs and maintenance to complete bathroom and kitchen remodels, shower installations, and water heater services, our expert team is committed to delivering exceptional craftsmanship on every job. We pride ourselves on prompt, reliable service, transparent communication, and high-quality workmanship that stands the test of time. Count on us for dependable service and expert solutions executed right the first time.
Serving Los Osos, 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 Los Osos, CA and surrounding areas
In business since 1999
Free estimates
Warranties offered
"It was a very easy process from the first conversation to the installation. I'm extremely happy!"
+17
Serving Los Osos, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Vortex Filtration Inc is a excellent company with vast experience & knowledge in conditioning potable well water. I recommend Vortex Filtration Inc to design build and install their patented Vortex water system to solved all well water conditioning issues. My client had a problem for over tens years prior to the installation of the Vortex system. Once installed, the well water in the holding tank was crystal clear. Thanks Vortex!"
+9
Serving Los Osos, CA and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"I have used this company for 9 years. They are professional, they know what they are talking about. Great value! They have done, toilet installs, Above the counter bowl plumbing for the bathroom they have Done water heater installation, and actually improved on The safety of the water heater replumbed the downspout. No need to look further if you need a professional plumber. They give you a time window and they are there! Lu Ann K"
+7
Serving Los Osos, CA and surrounding areas
In business since 2014
Free estimates
"Gary was very profesional and offered us great service and pricing!!"
+5
From average costs to expert advice, get all the answers you need to get your job done.
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.
Your water softener works overtime to keep your water safe. Use this guide on how to check your water heater for damage or poor performance.
Water softeners remove hard minerals from your tap water, improving plumbing systems and water-using appliances. Here are the most efficient water softeners out there.
