Commercial RTU replacement
Equipment, curb and roof interfaces, lifting access, power, controls, drainage, shutdowns, and startup planned together.

Whole-system replacements, rooftop units, distribution, controls, and substantial HVAC upgrades for commercial, multifamily, and residential properties.
Project fit
Commercial buildings · Multifamily properties · Qualified residential projects · $15k minimum · Typical project $25k–$250k
What we do
What we don't do
HVAC project types
Commercial and multifamily properties are the priority. Qualified residential projects are accepted when the scope fits.
Equipment, curb and roof interfaces, lifting access, power, controls, drainage, shutdowns, and startup planned together.
Complete heating and cooling replacement scoped around equipment, distribution, venting, drainage, controls, access, and startup.
Equipment and distribution scopes based on building use, existing conditions, access, comfort goals, and operating requirements.
Phased system replacement for apartment and multi-building properties with repeatable documentation and closeout.
How we scope it
A useful proposal starts with current conditions, access, documents, constraints, and the result the owner needs.
Mechanical plans, schedules, or equipment information if available
Existing unit data, controls, and known performance issues
Roof, exterior, ceiling, or equipment-room access constraints
Photos, budget range, preferred timing, and turnover date
Commercial-first project fit
Commercial HVAC work is planned around operations, lifting, access, shutdowns, controls, power, drainage, inspections, and startup.
Residential HVAC focuses on planned whole-system replacement and substantial upgrades—not emergency dispatch or minor component repair.
One accountable process
Share the ZIP, building type, requested trades, timing, budget, and the documents you already have.
We review the available information, confirm access, and identify the site conditions that require a visit.
Inclusions, assumptions, exclusions, schedule, payment steps, and responsibilities are put in writing.
One project lead coordinates progress, written changes, punch, photos, warranties, and useful records.
Scope questions
Yes. Vulcan scopes commercial, multifamily, and residential full-system replacements and substantial HVAC upgrades.
Mechanical work is performed or managed by appropriately licensed contractors. Vulcan confirms permit and inspection requirements and identifies responsibilities before work begins.
Yes. Equipment, curbs, penetrations, flashing, lifting, power, controls, and drainage can be managed as one integrated scope.
Related scopes
$15k minimum · Greater St Louis