
Serving Montclair, 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!!!"

*The Angi rating for Water Softener Service companies in Montclair, 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 Montclair, 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 July 31, 2025

Serving Montclair, 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 Montclair, CA and surrounding areas
Approved (Corporate)
In business since 1975
Free estimates
Emergency services offered
"My water heater wasn't heating the water. Serviceman taught me how to light the pilot. He was very polite and helpful. I was very impressed with the service he provided."


Serving Montclair, CA and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Response was amazing and fast. Arrived on time and kept me fully informed. Professional with complete set of moisture/ leak detection tools. Answered all our questions. Would love to recommend them."





+70

Serving Montclair, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"new toilet install and pressure valve replacement. Quick and effecient"

Serving Montclair, CA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"I recently had the pleasure of working with Joshua at Diamond House, and I couldn't be happier with the experience. From start to finish, he demonstrated professionalism, efficiency, and excellent customer service. My pipes were old, corroded, and causing issues in almost every part of my house from faucets to my water heater and water pressure. When I reached out for a repiping project, they responded quickly and scheduled an in-home consultation right away. Their team was punctual, arriving exactly when they said they would. Joshua walked me through the process of replacing my aging pipes and even gave me a few options that fit my budget. If any unexpected issues came up (as they sometimes do with older homes), he discussed them with me before proceeding. This level of communication gave me peace of mind. Although repiping is a significant investment, I felt that their pricing was fair for the high level of service I received. The long-term benefits of upgraded plumbing have already made a difference in my water pressure and quality. They also provided a warranty on all of their work and included yearly maintenance on my water heater and water filter/descaler. Diamond House Plumbing exceeded my expectations, and I would highly recommend them to anyone in need of repiping or other plumbing work."





+36

Serving Montclair, CA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"The tech arrived on time and performed the tank of clearing the main water line at the front of My property. All items and debris were clean and removed."





+2

Serving Montclair, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"They were excellent. The craftsmanship was also great."





+1

Serving Montclair, 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 Montclair, CA and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
We are a trusted plumbing company dedicated to delivering top quality workmanship, exceptional customer service and reliable solutions for every home. Our highly skilled and professional technicians take great pride in their craft ensuring every job is completed with accuracy, care and respect for your property. \n\nWhether you have a routine service or an urgent repair, we are committed to providing dependable honest and long lasting plumbing solutions you can count on. \nOur desire is to create lasting relationships with clients for years to come. \n\nCheck us out on Instagram, Facebook, TikTok or our website utilityplumbingservices.com





+1

Serving Montclair, CA and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"The plumber was very knowledgeable and professional. They kept the job site clean and we are very happy with the results."


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