Provider profile
One Call Services
Provider snapshot
What this listing says
Fremont and East Bay homeowners who need a single crew to handle water damage, mold removal, and rebuild under one contract with direct insurance billing.
Best for
- Fremont, Newark, Hayward, and Union City homeowners dealing with water damage that may have caused mold growth behind walls or under flooring.
- Homeowners who want one company to handle mitigation, mold removal, and the rebuild — no need to hire a separate general contractor.
- Spanish-speaking homeowners in the East Bay or South Bay who want to communicate directly with the crew in their language.
- Bay Area homeowners with active water emergencies who need someone on site within an hour, including nights and holidays.
- Commercial property managers across the East Bay and South Bay who need multi-room water or mold work with direct insurance coordination.
About this company
One Call Services is a locally owned restoration company headquartered in Fremont, California. They handle water damage, mold removal, sewage cleanup, fire damage, and reconstruction from three Bay Area offices — Fremont, Santa Clara, and Richmond. They have been operating since 2012 and claim 30-plus years of combined team experience. Their primary identity is water damage restoration, with mold work as a significant secondary service.
What stands out is the full-cycle model. The same crew that extracts water and removes mold also handles the drywall, flooring, and cabinet rebuild afterward. That means one contractor, one timeline, and one insurance claim instead of juggling a mitigation company and a separate general contractor. They use IICRC S500 drying standards, HEPA air scrubbers during structural drying, and containment barriers during mold work. The bilingual team (English and Spanish) and 24/7 phone line with a stated 60-minute response window are practical differentiators in the Bay Area market. They also bill insurance directly and offer deductible assistance on jobs over $20,000.
The company has been in Fremont since 2012. Marco Herrera appears to be the owner — his name shows up on the website contact button and across years of reviews. Jaime Ceja operates as regional manager and project lead, appearing in more reviews than any other staff member.
4.8 stars across 54 Google reviews is strong, particularly because there are zero 1-star or 2-star reviews in the last 18 months. Several reviewers mention getting honest advice that saved them money — including cases where Marco told callers they did not need remediation at all.
Services
Service area
Headquartered at 3269 Seldon Ct, Fremont, CA. Three offices dispatch crews: Fremont (30-mile radius covering East Bay and South Bay), Santa Clara at 2010 El Camino Real (25-mile radius covering South Bay and Peninsula), and Richmond (20-mile radius covering northern East Bay). Named cities include Fremont, Newark, Hayward, Union City, San Jose, Milpitas, Sunnyvale, Santa Clara, Mountain View, Cupertino, Campbell, Palo Alto, Redwood City, San Mateo, Berkeley, Oakland, and Castro Valley.
Review consensus
Marco and Jaime are the two names that appear most often. Marco is praised for honest assessments — multiple reviewers say he told them they did not need remediation and saved them money. Jaime draws praise for fast response, clear communication, and walking homeowners through the process step by step. Several reviewers mention competitive pricing, with at least one noting One Call was the least expensive of three bids. Reviewers also highlight the crew's cleanliness — protecting the home during work and cleaning up before leaving. The willingness to provide free phone consultations and honest advice, even when it means turning away a potential job, comes up repeatedly.
0 found across 54 total reviews at 4.8★. No 1-star reviews found in the last 18 months. The few non-5-star reviews in the full history are 4-star ratings with minor notes — one reviewer mentioned uneven wall paint after restoration, and another noted some initial confusion about the scope of mold removal versus water treatment. Neither points to a systemic problem.
The review pattern here is unusual: almost every negative signal is absent. No recent complaints, no 1-star reviews in the visible data, and multiple reviewers independently confirming that Marco talked them out of unnecessary work. The most notable structural pattern is the owner-operator model — Marco and Jaime handle both the sales conversation and the project management, which means the person who scopes the job is also the person accountable for the result. That likely explains both the honest pricing praise and the low complaint rate.
Marco Herrera (owner — consistently praised for honesty, knowledge, and willingness to advise homeowners against unnecessary work). Jaime Ceja (regional manager / project lead — praised for fast response, clear communication, and hands-on project management across multiple years of reviews). Wendy (crew member — mentioned once by name in a team context). Jorge (crew member — mentioned once by name in a team context).
This is a small, owner-operated company where Marco and Jaime personally handle most jobs. Ask for Jaime as your project lead if your job involves water damage with potential mold. Get an independent mold test before agreeing to remediation scope, since they do both testing and removal. The track record on honest pricing is strong — multiple reviewers confirm they were talked out of work they did not need.
Keep in mind
- They do both mold testing and mold remediation. That means the same company deciding you have a mold problem is also the one billing you to fix it. Consider getting an independent mold test before committing to their remediation scope.
- Their service area claims are broad — Fremont to Richmond to San Jose to the Peninsula. Response times will vary significantly depending on which office dispatches to your location. Confirm estimated arrival time for your specific address before relying on the 60-minute promise.
- The website mentions fire damage restoration and reconstruction, but review evidence is concentrated on water damage and mold. Ask for references specific to your project type if it is something other than water or mold work.
- With 54 reviews and almost no negatives, the review dataset is small. A 4.8-star rating is strong, but the limited volume means a few bad experiences could shift the picture quickly.