4.8 
27 *The Angi rating for Water Softener Service companies in El Cajon, 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 El Cajon, 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 September 21, 2026
Serving El Cajon, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1977
Free estimates
Emergency services offered
"Extremely professional, great job and service. I highly recommend them to install water softeners."
+60
Serving El Cajon, CA and surrounding areas
Approved
In business since 1993
Free estimates
Credit card accepted
"The installation technician, Danny, showed up on time and was extremely professional and friendly. He installed a reverse osmosis system under the kitchen sink with a brushed nickel faucet beautifully mounted on our granite counter top, as well as a whole house water filter and softening system in the garage. His workmanship was terrific and the system works great, we couldn't be happier!"
+1
Serving El Cajon, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Free estimates
Emergency services offered
"California Plumber is the best! The office staff was so helpful in coordinating my water softener installation. The technician was punctual and did a fantastic job. I couldn’t be happier with the service!"
+3
Serving El Cajon, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"I had an excellent experience with Pro Bright Construction. They responded to my initial inquiry very quickly and were able to schedule the installation of a whole-home water flow restrictor on the main water intake that same day. The two professionals who completed the work were friendly, knowledgeable, and courteous. Although this was a significant installation, they finished the job in just a couple of hours and left the work area spotless. I was quoted a price by a large plumbing company that was nearly twice the amount I paid, so I also appreciate Pro Bright's very fair pricing. I'm left truly happy for their prompt response, professionalism, quality workmanship, and value. I will definitely contact Pro Bright Construction for any future plumbing needs and highly recommend them."
Serving El Cajon, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Credit card accepted
"Billy did a great job replacing my water heater. Super professional, showed up on time, and got everything working perfectly. Definitely calling him again if I need plumbing help."
Serving El Cajon, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"The technician for Carini was very polite and professional. He performed the services and explained the issues we were having with the clogged drains. He also inspected the units outside and recommended seasonal tune ups for the systems.
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+16
Serving El Cajon, CA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Your guys CJ & Andrew were awesome! They did such a nice clean looking job! Super professional and very informative. They walked me through setting up the app for the whole house water shut off valve they installed and now I get a reduced rate on my homeowners insurance. They also found that my water pressure reducing valve had failed and replaced that at the same time. Couldn’t be more happy with the job they did."
+12
Serving El Cajon, CA and surrounding areas
Approved
In business since 1984
Free estimates
Emergency services offered
"My water heater went out, needed it replaced the same day, called plumbing Plus in the morning, had it fully installed water heater with the old one gone by noon. Robert answered all of my questions and concerns. If I have any other plumbing jobs I will call on them. Robert was knowledgeable, efficient, and friendly."
+37
Serving El Cajon, CA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Very happy with service. Our specialist plumbing technician ( Johnny) arrived when he said he would and did an excellent job clearing our problem drain in a short, but thorough. He cleaned up well after his work of done. We will recommend to our neighbors and friends."
+2
Serving El Cajon, CA and surrounding areas
Approved
In business since 2012
Warranties offered
Credit card accepted
"On time, works quickly and got me back up running, I would recommend Deer Water to anyone that has a well problem"
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.
