CUSTOM H 2 0 logoApproved Pro
This pro has maintained an average of 4.5+ star throughout their time with Angi.
Approved Pro

CUSTOM H 2 0

Water Treatment & Purification System Installation and Replacement,
This pro has maintained an average of 4.5+ star throughout their time with Angi.

About us

CUSTOM H 2 0 is your area leader for all of your water treatment needs. We know customer service is key to a job well done, and ours is the best around. When you want top quality work at an always fair price, call the professionals at CUSTOM H20. We are an independent company. This allows us to provide the highest quality water treatment equipment and service at very discounted prices. Thank you.

Business highlights

Se habla espanol
Emergency services offered
11 years of experience

Services we offer

Alkaline Water, Many types of Water Filtration, Reverse Osmosis Systems, Water Softeners, Water Treatment

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
5.030 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 30 reviews
Andy L.
Apr 2025
5.0
Water Treatment & Purification System Installation and Replacement
$3,000
Custom H2O does a significant amount of large commercial projects and rely mostly on word of mouth. Many of their clients include hospitals, so the equipment they sell is very high performance. I spoke with the president, Chris over the phone about initial details on what I am looking for in a water softener. After that, Chris made a point to schedule a visit to see the house and plumbing before proceeding. He looked over the overall layout, checked the water pressure, and took detailed measurements before advising us on our installation options and products. The discussion focused on key concepts like different substances carbon and resin filter out, not about sales gimmicks or overselling. After the initial quote, Chris actually called to hold off the installation for a week to take advantage of an upcoming manufacturer rebate. Their knowledge, experience, and integrity speak volumes.

Brandy H.
Mar 2025
5.0
Water Treatment & Purification System Installation and Replacement
We used Custom H2O water filtration for our home. When I thought there was a problem late at night Chris the owner called to walk me through the issue which was resolved right away. We recently had a small leak and when I called regarding the leak the service person was at my house within 15 minutes and fixed the leak. We appreciate the attention this company gives to their clients .

Neel M.
Feb 2025
5.0
Water Treatment & Purification System Installation and Replacement
Amazing service and pricing! The knowledge Chris has is unbeatable. On top of the pricing was great and quick turn around

Aaron C.
Nov 2023
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Yes, knew exactly what the problem was.

Delores B.
Sep 2023
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
$1,950
Response was quick and presentation was well organized and complete. Price was very reasonable. Installation was timely. Communication was easy, including a follow up call to make sure we were totally satisfied.

Steve G.
Jun 2023
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
experienced and contrary what is happening in the country custom h2o is not out to gouge it's customers extremely well priced

Elizabeth A.
Mar 2023
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
They did a terrific job.

Sandi S.
Aug 2022
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Very Knowledgeable and I had a little bit of a problem and they came out right away to fix it.

Matt F.
Jul 2022
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Chris did an amazing job guiding me on what was best for my family's needs. He was knowledgeable, trustworthy, and provided a great system at a fair price. Give him a call!

David H.
May 2022
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
$3,000
Chris (President) is extremely knowledgeable and communicates well to the non-experts. He also will tell you the good, bad, and ugly about the multitude of options on the market. He will not steer you wrong and his installation team is highly professional and informative. I received 5 quotes and his was the next to the lowest. The lowest was clearly a scam. Custom H2O is a quality company and I recommend them.

Russell H.
Apr 2022
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Excellent customer service and a very knowledgeable company when it comes to quality drinking water. Also, very competitive pricing for a superior product!

Susmin J.
Mar 2022
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Overall great job

Krosby P.
Mar 2022
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
They were so great and professional and quick.

Michael M.
Dec 2021
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
.

Mitchio M.
Nov 2021
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
I agreed for $139 per hour, but after the two arrived and Chris (owner) diagnosed the problem, he only charged me $99. That was because he spent only 15 minutes. Very fast at diagnosis, very knowledgeable. When i made the appt. we discussed the problem for 15+ minutes over the phone

Alex T.
Jul 2021
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
$490
Chris MacKnight was honest, fair and knowledgeable.

John R.
May 2021
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
resolved water & system requirements

Irving R.
Mar 2021
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
$591
Very happy with my new 3-stage whole house water filter/installation - topnotch!!!

Renee M.
Jan 2021
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Iâ m very happy with the product and the customer service Iâ ve received

Vishal P.
Dec 2020
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
$750
Amazing service . Chris is very knowledgeable and gets his work done very nicely. I have him installed water softener and RO and he got the work done flawlessly. Very reasonable quotes as well

Curtis T.
Oct 2020
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
This company is amazing! I just purchased a complete soft water and RO system to replace my 23 year old Ecowater system. Chris, who’s the company owner took the time to explain all my options in detail. He was extremely detailed and reliable throughout the entire process. Though they were booked out 3 weeks, he made special accommodations by installing my new system himself within one week of his initial home visit estimate. Chris was very meticulous to perfection. He’s fair and honest! Great experience throughout the process!!

Gregg D.
Oct 2020
5.0
Yes, I recommend this pro
$1,100
Professional polite quality work

Tim F.
Sep 2020
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
Extremely knowledgeable! Chris and his team were the perfection of service oriented care.

Christine T.
Sep 2020
5.0
Water Treatment & Purification System Installation and Replacement
Yes, I recommend this pro
$360
The person who helped me was nice.

Abu I.
Aug 2020
5.0
Yes, I recommend this pro
Great professional service.
Showing 1-25 of 30

Licensing

Licensed*

Trade License Number

994323

Trade License Locale

CA

Trade License Expiration

07/31/2026

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

CUSTOM H 2 0 is currently rated 5.0 overall out of 5.
Monday: 8:00 AM - 5:00 PM Tuesday: 8:00 AM - 5:00 PM Wednesday: 8:00 AM - 5:00 PM Thursday: 8:00 AM - 5:00 PM Friday: 8:00 AM - 5:00 PM Saturday: Closed Sunday: Closed
CUSTOM H 2 0 accepts the following forms of payment: CreditCard
Yes, CUSTOM H 2 0 offers free project estimates.
No, CUSTOM H 2 0 does not offer eco-friendly accreditations.
No, CUSTOM H 2 0 does not offer a senior discount.
Yes, CUSTOM H 2 0 offers emergency services.
Yes, CUSTOM H 2 0 offers warranties.

Contact Information

801 W. Lambert Rd, Brea, CA 92821

Service Hours

Sunday:Closed
Monday:8:00 AM - 5:00 PM
Tuesday:8:00 AM - 5:00 PM
Wednesday:8:00 AM - 5:00 PM
Thursday:8:00 AM - 5:00 PM
Friday:8:00 AM - 5:00 PM
Saturday:Closed
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