Advanced Systems Services

Advanced Systems Services holds a 5-star rating across 8 client reviews in Upland, California. The contractor operates Monday through Friday from 6 AM to 5 PM, providing service to the Inland Empire region. Client feedback consistently references the team's work with specialized commercial equipment fleets, suggesting a focus on medical and imaging industry clients rather than typical residential HVAC needs. The phone number (909) 949-9944 connects customers directly to the Upland office.

The contractor differentiates itself through specialized expertise with medical imaging technology, a niche that demands precise climate control and electrical systems. Reviewers highlight the team's technical knowledge of industry-specific equipment, describing the operation as a gold-standard provider in their field. The combination of on-road mobile systems and fixed-site installations indicates capability to handle complex, multi-location service requirements.

Customer feedback specifically names Dominique as a team member who receives strong endorsement, with one reviewer calling her the best and praising her ability to balance friendliness with getting things done. Another client references same-day delivery of service, suggesting the contractor prioritizes responsive turnaround. The consistency of 5-star ratings across all eight reviews points to reliable, professional execution that commercial clients repeatedly trust.