Mechanical · In-House Crews · DC · MD · VA
Cocell Contracting installs, replaces, and relocates heating and cooling systems as part of remodels and as standalone work — with in-house crews, real permits, and proper load calculations.
Whether you are remodeling, adding square footage, or replacing an aging system, HVAC has to be sized and routed correctly. New layouts change airflow; additions need new zones; finished basements need ventilation. Because our HVAC crews are in-house, we design the system alongside the rest of the project instead of bolting it on at the end.

We start with an on-site consultation, then develop a design and a detailed, line-item scope so you know exactly what is included. Once approved, our own crews handle the work through final inspection, with written change orders before any added work and weekly progress updates with photos.
We focus on installations, replacements, and system work as part of design-build projects, sized with proper load calculations.
Yes. New zones and ductwork for additions and below-grade spaces are coordinated with the rest of the build.
Yes, we file and manage HVAC permits and coordinate inspections across the DMV.
Yes — we provide a free on-site estimate with a line-item proposal. Book an appointment to get started.