Corval Group, Inc.

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About Corval Group, Inc.
Corval Group, Inc. operates as a general contractor serving the St Paul metropolitan area and surrounding Minnesota communities. The business maintains standard weekday hours from 7:30 AM to 4:30 PM, Monday through Friday, and can be reached directly at (651) 645-0451. With 16 customer reviews on record, Corval Group holds a composite rating of 3.3 stars, indicating a mixed track record that warrants careful consideration by prospective clients. The contractor employs a team that some reviewers describe as dedicated to project completion, though the spread of customer experiences suggests quality may vary by individual job and crew assignment.
Several reviewers specifically mention Corval Group's emphasis on workplace safety and efficient project execution. William Williams notes the contractor demonstrates a committed focus on employee safety and health across multiple project engagements. Adam Erickson describes the organization as delivering work in an efficient yet safe and quality-conscious manner, alongside what he ranks among the best customer service experiences in the industry. Sam Ashkar confirms the business maintains productive meetings and demonstrates solid expertise with reliable follow-through on commitments.
Customer experiences with named staff members appear prominently in the review record. Molly Lunaris recounts dealing with Tim Langevin, identified as Senior Project Manager, during an unresolved airflow equipment issue where she felt the communication fell short of professional expectations. Conversely, positive reviewers highlight experiences where the team delivered same-day responsiveness and thorough diagnostic work that resolved problems other contractors could not address. The contrast in these narratives suggests that project outcomes may depend significantly on specific technician assignment and the nature of the technical challenge involved.
What Customers Say
Three of six detailed reviewers award five stars, praising Corval Group's efficiency, safety practices, and customer service. The remaining three one-star reviews cite specific concerns: poor communication during unresolved equipment issues, unprofessional conduct at job sites, and a driving complaint involving company vehicle 788.
Working Hours
| SundayToday | Closed |
| Monday | 7:30 AM–4:30 PM |
| Tuesday | 7:30 AM–4:30 PM |
| Wednesday | 7:30 AM–4:30 PM |
| Thursday | 7:30 AM–4:30 PM |
| Friday | 7:30 AM–4:30 PM |
| Saturday | Closed |
Services
General Contracting Services
Full-scope construction and renovation project management for commercial and residential builds.
HVAC Installation & Replacement
New heating and cooling system installation for existing structures and new construction.
HVAC Repair & Maintenance
Diagnostic services, tune-ups, and emergency repairs for heating and cooling equipment.
Project Management
Oversight of construction projects including scheduling, subcontractor coordination, and quality control.
Safety-Focused Construction
Project execution with documented emphasis on workplace safety protocols and practices.