
Serving Pomona, CA and surrounding areas
Approved
In business since 1992
Free estimates
Small jobs welcome
"Bill and his crew were extremely professional and helped assess the issue and fix my waterproofing problems quickly. Highly recommend."

*The Angi rating for Basement Waterproofing companies in Pomona, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
*The HomeAdvisor rating for Basement Waterproofing companies in Pomona, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
Last update on January 27, 2026

Serving Pomona, CA and surrounding areas
Approved
In business since 1992
Free estimates
Small jobs welcome
"Bill and his crew were extremely professional and helped assess the issue and fix my waterproofing problems quickly. Highly recommend."

Serving Pomona, CA and surrounding areas
Approved (Corporate)
In business since 1992
Free estimates
Emergency services offered
"We had excellent experience with Alpha Structural. Charlie Rosenkranz came to see the property and advice. He checked the structures all around and looked in the basement as far as possible beyond the ducts that were filling up the space and would require tunneling to get to some areas under the building. Communication was excellent. He's knowledgeable and experienced. We appreciated his professional no pressure approach and answering our questions. The front main duplex needed Seismic Retrofit; it wasn't bolted and had cripple walls. There were suspect areas in the foundations that would have to be tested when bolting, to see if the concrete is in good shape. After we agreed to their proposal have the work done we scheduled a range date. They had to submit to the city plans for a permit to do the work and wait for the permit to be issued. While doing the retrofit we found out that the foundation in the front corner was damaged and that the building has sunken and was not level at that corner. Charlie worked out the details and bid for the additional work of Partial Foundation Replacement, Posts/piers, and Jack Lift the corner to level it. He explained the details and what's involved to my satisfaction. Alpha obtained the permit for the work and proceeded. The work crew did excellent work. Jose Morales was the Project Supervisor. They completed the work at a good pace, including the delay for the additional work permit, without complications or complaints from the neighbors. The place was left clean. The work was approved in the inspection which they requested and scheduled with the city. The communication with everyone at the office was also very good. We're very pleased with the experience."





+323

Serving Pomona, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"I returned home from a trip and found water all over my downstairs bathroom and adjoining shed. It was late afternoon and I called Western Rooter who agreed to come out first thing the next day, I had a pretty sleepless night. Rene showed up the next day and assessed the situation and started clean up. Tony soon joined him and the two worked all day until after dark and helped me with cleanup and putting things right. They explained to me what they were doing and why along the way. I felt they charged a fair price. I am so grateful for their service and highly recommend Western Rooter."





+542

Serving Pomona, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"Excellent, could not be happier with service."





+18

Serving Pomona, CA and surrounding areas
Approved (Corporate)
In business since 1995
Free estimates
Warranties offered
"Angel and Andrew did a great job on raising the concrete on my patio. One side was sinking which caused the other side to lift up. They were able to even out the cement so now it looks great. Thank you for working so hard to fix it."





+16

Serving Pomona, CA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Nick was amazing and got a big problem done for a reasonable price. He will be my forever plumber now"





+97
Serving Pomona, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
Serving Pomona, CA and surrounding areas
In business since 2016
Free estimates
Credit card accepted
It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.
Serving Pomona, CA and surrounding areas
In business since 2016
Free estimates
Credit card accepted
"We worked with Ali (sales manager) and Tony (project manager), who took the time to design a project that made sense for our property and our budget, made a number of suggestions and recommendations and were never pushy or tried to "sell" us on something. The crew really went above and beyond to provide top quality workmanship and overall we were in very good hands. Highly recommended!"

Serving Pomona, CA and surrounding areas
In business since 1988
Free estimates
Emergency services offered
"I got the worth of every dollar I spent on Reliable Roofing. I couldn’t ask for better."





+290
From average costs to expert advice, get all the answers you need to get your job done.

Need to fix basement water problems or safeguard your home in Los Angeles, CA from damage in the future? Use this basement waterproofing cost guide to budget appropriately.

An unfinished basement has a lot of potential. So, how much does it cost to finish a basement in Los Angeles, CA? Read on for all cost factors.

A variety of factors can affect your total crawl space encapsulation cost in Los Angeles, CA. Here’s a breakdown of the cost of this project, whether you hire a pro or DIY.

Dealing with a damp basement? Follow these steps for DIY basement waterproofing to keep water and moisture out and boost your home’s energy efficiency.

Struggling with a damp basement? Learn about basement waterproofing and how these tips can help keep your basement safe from the elements.

Can’t seem to get rid of the moisture and mold in your basement? Learn why basements tend to hold moisture and how to get rid of moisture in the basement.