*The Angi rating for Basement Waterproofing companies in Sonoma, 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 Sonoma, 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 September 30, 2025
Serving Sonoma, CA and surrounding areas
Approved
In business since 2021
Free estimates
Offers commercial services
"John contacted me right away and gave us transparent pricing. The 2-person team showed up on time and completed the lateral sewer line repair in an efficient and professional manner. I would definitely work with them again."
Serving Sonoma, CA and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Warranties offered
"Groundwork’s did a great job on our house. Luis G was an amazing Forman with Ken H and Mark P all waterproofed under our house. They worked quickly, efficiently and thoroughly left all areas in tact and clean. Luis communicated very clearly about the all aspects of the job until it was completed."
+16
Serving Sonoma, CA and surrounding areas
Approved
In business since 1968
Free estimates
Warranties offered
"Very professional and resolved my problem."
+9
Serving Sonoma, CA and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"work was well organized, well executed and completed ahead of schedule by a friendly and knowledgable crew."
Serving Sonoma, CA and surrounding areas
Approved (Corporate)
In business since 1990
Free estimates
Warranties offered
"He did a fantastic job he answered all my questions and told me if I have any questions that I could always call him.
"
Serving Sonoma, CA and surrounding areas
Approved
In business since 2000
Free estimates
Offers commercial services
Demar Inc. proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things, that set us apart from the rest. We are locally owned and operated. Give us a call today!
Serving Sonoma, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
Here at Raya Engineering, we sustain our company on the principal that our customers come first. We offer services that are tailored to your needs and we're ready to show you what our experience can bring to your project! Call us today!
Serving Sonoma, 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 Sonoma, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.
+8
Serving Sonoma, CA and surrounding areas
In business since 2016
Free estimates
Credit card accepted
"Very professional. Completed the job in two weeks. The deliverables were as promised. They were very independent, requiring only minimal involvement from the client. However, communication with the owner could be enhanced a bit."
From average costs to expert advice, get all the answers you need to get your job done.
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