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TRUSTED BY MAPLE VALLEY, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon16
    Verified water softener services reviews

Top-Rated Water softener pros in Maple Valley - Updated Nov 2026

Blue Line Water Inc.
4.9(
51
)
Water Treatment & Purification System - Install or ReplaceWell Pump - Repair or ServiceWater Treatment & Purification System - Repair or Service

Serving Maple Valley, WA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Chris and his team was very thorough in product knowledge and how best to solve our water issues!! The system installation was great and we are so happy we did this treatment system! Our water feels so clean and there is no more order!!"
Response time1 day
29 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Plumbing Excellence Northwest, LLC
Plumbing Excellence Northwest, LLC
5.0(
9
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Maple Valley, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Jose Ruiz was very professional explained every step of the process. As someone who knows nothing about plumbing he walked me through all the details. Thank you Jose for coming out to my home within 2 hours on a Friday evening. A job well done at a reasonable price. You Rock!!!"
Boiler
Water Heater
Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for SIMBA SOLUTIONS CO LLC
SIMBA SOLUTIONS CO LLC
4.7(
18
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Maple Valley, WA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Absolutely fantastic service!!! Jason did an amazing job installing our new tankless water heater, and the whole experience was smooth and stress-free. He took the time to answer all our questions, made sure everything was set up perfectly, and left the workspace spotless. You can tell he takes pride in his work. We?re beyond happy with the results and grateful for the excellent service"
Simba plumbing
Simba plumbing
Simba plumbing
Simba plumbing
Simba plumbing

+29

1 neighbors recently requested a quote
Avatar for Dear Services
Dear Services
3.5(
285
)
Water Treatment & Purification System - Install or Replace

Serving Maple Valley, WA and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"When I asked for service because of a water leak, they gave me a next-day appointment, on Friday. Next day they called and said they couldn't come, but would come between 1 and 7 PM on Tuesday. Waited all afternoon on Tuesday and nothing, not even a call. Wednesday I called to report the failure and was told management would be notified. Thursday afternoon I called and was given an appointment between 1 and 7 PM the next day, Friday. On Friday an expert plumber showed up an hour early and did a marvelous job. Seemed to cost an arm and a leg, but complete and professional, along with good explanations of everything."
Kitchen rewire
lighting upgrade
Condo Rewire
Condo Rewire
Condo Rewire

+13

Response time12 hrs
16 neighbors recently requested a quote
Recommended by75%of homeowners
2 Sons Plumbing
5.0(
5
)
Water Treatment & Purification System - Repair or Service

Serving Maple Valley, WA and surrounding areas

Approved (Corporate)

In business since 2017

Credit card accepted

Offers commercial services

2 Sons Plumbing is a full-service plumbing and sewer company serving the greater Seattle area. Known for reliable service, honest recommendations, and quality workmanship, our team handles everything from everyday plumbing repairs to complex sewer solutions—helping homeowners keep their systems running smoothly year-round.

Avatar for All Water Plumbing LLC
All Water Plumbing LLC
5.0(
12
)
Well Pump - Repair or Service

Serving Maple Valley, WA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"One could not ask for much more with Vlad from AWP. He was willing to take the time to discuss what he was doing and explain options. His work is very neat and precise and he maintained a very clean work environment. As someone who does most of their own work, I can assure you that I will utilize AWP for all my plumbing needs in the future."
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+24

Recommended by100%of homeowners
Avatar for Home Comfort Alliance
Home Comfort Alliance
4.7(
341
)
Water Treatment & Purification System - Install or ReplaceWater Treatment & Purification System - Repair or Service

Serving Maple Valley, WA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Everything went well and smooth with their help. I got the proposal with all details at the same day when they came to do the estimate. Our old furnace was built on 1971, and it was in a closet next to the water heater tank. When one other company came to estimate, they wanted to cut a furnace size hole on the wall facing the hallway to fit the machine and we have to find a constructor or handy man to finish, like to build a door or make it look good, but G&S figured out an easy way, which is to turn the machine toward another direction and eventually only cut a vent on the wall. It took two days for all the installation, and they cleaned up when they left and everything looked clean and nice. They also listened to customers. We didn't want the heat pump to be right next to the stairs of our deck, so they chose a spot which was few feet away from the closest spot without any question. We appreciate for that, since the wind blows out from heat pump is kind of strong, and we feel comfortable with where it is at now. One thing I really like is they were on time, and they called around 30 minutes ahead before them showed up. They also take care all the paperwork for the PUD rebate, Costco 10% shop card, and city permits, and all we do is waiting their call to arrange the time."
Additional Photos
Choose Home Comfort Alliance for professional HVAC installation.
Seattle’s HVAC installation pros provide efficient, reliable service.
Get Reliable, High-Quality HVAC Installation in the Seattle-Tacoma Area.
Home Comfort Starts with Professional HVAC Installation.

+1

Response time1 day
Response rate100%
Recommended by91%of homeowners
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Water Softeners FAQs, answered by experts

The most accurate way to determine whether you have hard water is to purchase a water test kit from a hardware store or send a tap water sample to a lab. But there are some signs you can look out for without professional testing. For instance, if you're consistently dealing with mineral stains on your glassware, windows, and shower doors, you're likely to have hard water. Hard water can also make it harder to lather and rinse soap, so if you're struggling to work up a good lather in the shower, hard water might be the culprit.

No. You should never directly drain a water softener into a sewer cleanout. This practice is illegal in many areas because it could allow raw sewage to get into your drinking water and make you seriously ill. Many places have codes requiring a specific seal, pipe, and a large air gap between a water softener and a sewage cleanout. Check out Florida's Plumbing Building Code as an example of what these restrictions might look like.

Most of the U.S. has hard water, especially across portions of the West and Midwest. The areas with the hardest water include parts of Texas, Oklahoma, Kansas, Colorado, New Mexico, Utah, Wyoming, Illinois, North and South Dakota, Ohio, and New York. You’ll find soft water in parts of New England, the Southeast, the Pacific Northwest, and Hawaii.

Selecting the right system depends on testing your water to understand the contaminants present and considering your household's water usage and specific needs, such as removing specific contaminants.

Experts recommend that you put two to four bags of potassium chloride in your water softener every month. This amount depends on how much is in the bag (40 pounds is most common) and what your water softener manufacturer recommends. For more specific advice, talk to a water softener pro in your area and read the manual that came with your system.

The Maple Valley, WA homeowners’ guide to water softener services

From average costs to expert advice, get all the answers you need to get your job done.