Heating & Air Conditioning Contractors

Nasseff Mechanical Contractors operates from 122 South Wabasha Street in downtown St Paul, providing integrated mechanical services across the Twin Cities metro. The company holds a 4.2-star rating derived from 13 customer reviews, with technicians deployed across HVAC, plumbing, and fire protection divisions. Since 1972, the firm has maintained continuous operation under the Nasseff name, offering both design-build project delivery and reactive service calls. Their suite 101 office handles scheduling for maintenance contracts, same-day repair dispatch, and larger pipelength construction projects. The business serves St Paul residents alongside commercial clients requiring specialty metals fabrication and complex piped manifold installations.

What distinguishes Nasseff from standard residential HVAC contractors is their multi-trade depth. The company maintains separate crews for plumbing and fire protection work, allowing single-point coordination on renovation projects rather than coordinating three separate subcontractors. Their website lists design assist and design build capabilities, positioning the firm for custom homes and light commercial buildings where mechanical systems require upfront engineering coordination. Specialty metals fabrication enables custom stainless steel and black iron installations that typical residential contractors outsource to third-party shops.

Customer narratives from reviewers reveal specific service moments worth noting. Phillip Trobaugh describes a fifteen-year relationship with Nasseff for both plumbing and heating needs, emphasizing that technicians confirm satisfaction before concluding each visit. Russell Barnes specifically mentions fantastic technicians alongsidetop-tier customer service. However, two reviews diverge sharply, one citing billing practices for a low-income housing property and another criticizing staff demeanor during scheduling. The negative reviews center on administrative interactions rather than technical execution, while five-star entries uniformly praise skill and professionalism.