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Business Details
22 Years
experience
Emergency
services
Your Trusted IT Partner for Computer Services & Support
Since 2004, MA4 Computer Services has been delivering expert IT solutions to homes and small businesses across California. Our team, led by Chief Technology Officer Matsie AbuHamdeh with over 20 years of industry experience, specializes in resolving complex technology challenges through personalized service. We provide comprehensive computer repair, network installation, and cybersecurity solutions for clients in Martinez, Costa Mesa, and surrounding areas. Our dual locations in Contra Costa and Orange Counties enable rapid response times for both onsite and remote support. We combine technical expertise with clear communication to ensure clients understand their technology systems.

With competitive pricing and a focus on long-term client relationships, we help businesses maintain efficient, secure IT operations. Our proven track record includes successful implementations of automated backup systems, network security protocols, and disaster recovery solutions. We serve diverse industries including dental offices, professional services firms, and residential clients. Our commitment to quality has earned consistent praise for prompt service and technical proficiency. In 2024, we expanded our capabilities through a strategic second location while maintaining our core values of reliability and customer focus.
Services
Computer Repairs Network Installation Virus Removal Data Backup Cybersecurity Remote Support Hardware Upgrades Printer Setup Operating System Server Monitoring
Details
  • Year established: 2004
Highlights and features
  • We offer over 20 years of combined IT experience with certified technicians
  • Our team provides rapid response for urgent computer emergencies
  • We deliver clear technical explanations in non-technical language
  • We serve both residential and business clients across two California counties
  • Our proven solutions include network security and disaster recovery systems
What people say
Exceptional expertise Prompt return of calls Fantastic response Great communications Professional and personable
Services
Computer Repairs
Our certified technicians provide rapid computer repairs for hardware failures, software issues, and system crashes. We diagnose problems efficiently and implement lasting solutions for both home and business users. Our service includes component replacement, error resolution, and performance optimization to restore full functionality.
Network Installation
We design and implement reliable wired and wireless networks tailored to client requirements. Our installation includes router configuration, device integration, and security protocols to ensure stable connectivity. We support both residential networks and complex business systems with file sharing and printer access.
Virus Removal
Our security experts eliminate viruses, spyware, and other malicious software from infected systems. We perform thorough scans, remove threats, and implement protective measures to prevent future infections. The service includes firewall configuration and security education for ongoing protection.
Data Backup
We implement automated backup solutions to protect critical data from loss. Our systems create secure cloud and local backups with customizable schedules. We ensure quick data recovery in case of hardware failure, accidental deletion, or cyberattacks like ransomware.
Remote Support
Our technicians provide immediate remote assistance for urgent technical issues. Through secure connections, we diagnose and resolve problems without onsite visits. This service includes software troubleshooting, settings adjustments, and emergency fixes for business-critical systems.
People
Matsie AbuHamdeh
Chief Technology Officer
With over 20 years of IT experience, Matsie leads our technical team in delivering expert solutions. He specializes in network security and system optimization, combining deep technical knowledge with clear client communication to resolve complex technology challenges efficiently.
Questions
What areas do you service?
We serve Martinez, Costa Mesa, and surrounding California areas including Contra Costa and Orange Counties.
Do you handle emergency repairs?
Yes, we prioritize urgent computer crashes and network outages with rapid response times.
What experience do your technicians have?
Our team has over 20 years of combined IT experience with certified professionals.
Can you help with business networks?
Yes, we install and maintain wired/wireless networks for small businesses with file sharing.
Do you offer remote support options?
Yes, we provide secure remote assistance for quick resolution of technical issues.
Reviews (4)
Task Rabbit
Sep 26, 2021 Report
Tech was very knowledgeable!
Fantastic response, great communications, look forward to working again.
RedCub S.
Sep 09, 2015 Report
Matsie did a great job installing our system. He was fast and reliable. He sold us what we needed and not what we didn't. No oversell. He is friendly and courteous and gets the job done. I would recommend him in a second. Thank You.
Kathryn M.
Apr 25, 2014 Report
Matsie is reliable, affordable, dependable and I would recommend him and his business without question. I needed a new computer and he helped me select a new one. When it was ready, he came to my house, set up the new one, migrated over my data and even looked at my girlfriend's laptop while he was there. I have used him in the past for computer issues and he has always been courteous and efficient.
Jeff P.
Aug 25, 2010 Report
Matsie is the greatest. I had a hard disc crash. The Geek Squad had the computer for a week and didn't recover anything. Matsie took the computer and recovered 99%! He is always responsive, comes to your home or business if he can't fix it remotely. Really knows his business.