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Claim This BusinessH & G Systems has operated from Dallas since 1968, accumulating over five decades of mechanical systems expertise in commercial, institutional, and industrial construction. The company holds a strong rating of 4.1 stars across 20 homeowner reviews and maintains active licensure within Texas. Serving the Dallas-Fort Worth metroplex including Uptown, Lower Greenville, and Park Cities neighborhoods, H & G Systems partners with commercial property owners, general contractors, and facility managers to deliver integrated HVAC and plumbing solutions. The company staff includes trained technicians capable of responding to both scheduled maintenance requests and urgent after-hours calls.
What distinguishes H & G Systems from regional competitors is their integrated design-build and design-assist capability, allowing them to shepherd projects from initial concept through final installation without fragmented subcontractor relationships. Their portfolio demonstrates particular strength in fast-track commercial builds including data centers, historic church renovations, and multi-use recreational facilities. The company offers dedicated 24/7 emergency service with a team committed to on-time, on-budget delivery, a critical differentiator for businesses where downtime translates directly to revenue loss. This approach reflects their emphasis on collaborative partnerships rather than transactional service calls.
Customer testimonials reveal two distinct service narratives. Reviewer Eleazar Contreras specifically praised technician Jim, noting he remains "just a call away" for properties with closed-loop watersource heat pumps, a specialized competency rarely found among general residential contractors. Another reviewer, Cory, highlighted the company's experienced staff and quality materials used in mechanical installations. However, three negative reviews documented concerning driving conduct by company vehicle operators, with reviewers citing reckless behavior on public roadways. While these incidents represent a minority of feedback, they represent a meaningful pattern that prospective clients should weight alongside the company's technical strengths.
5 of 8 readable reviews award 5-star ratings, specifically praising the company's responsive service and honest business practices. All negative feedback originates from external conduct incidents unrelated to actual HVAC or plumbing workmanship, specifically driver behavior on public roads. Positive reviewers specifically name technicians Jim and highlight competency with watersource heat pump systems.
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Complete system design and installation for new commercial construction using integrated project delivery.
Collaborative engineering support during early design phases to optimize equipment selection and mechanical layout.
Commercial plumbing installation including water distribution, drainage, and fixture rough-in.
Scheduled HVAC and plumbing maintenance designed to extend equipment lifespan and prevent failures.
24-hour response team for urgent HVAC and plumbing failures affecting business operations.
Specialized retrofitting of mechanical systems in protected historic structures.