Mechanical engineering and HVAC service for the commercial Triangle.
Commercial engineering at Halberd
The Halberd commercial division is led by Phillip Halberd, PE, ASHRAE Distinguished Lecturer, and staffed by Jonelle Park, PE, LEED AP, plus four commercial-credentialed service technicians and a project administrator. The division has handled rooftop unit replacement, chilled-water system retrofit, VAV-zone modification, and BMS integration projects across office, medical-office, retail, and light-industrial buildings throughout Wake, Durham, and Orange counties since the mid-1980s.
Commercial work is dispatched out of the Raleigh engineering office. PE-stamped scope documents are produced as standard practice. When a commercial proposal is requested, the engineering office will conduct a site walk, gather the existing system documentation, and produce a scope document with an itemized cost basis, an installation schedule, and an optional ROI analysis if the client requests one. Proposals are typically delivered in seven to fifteen business days depending on scope.
Halberd does not bid Class A high-rises above twelve stories and does not handle process-cooling work for industrial manufacturing — those are specialty practices we leave to firms that focus there exclusively. Our work centers on the commercial mid-market: office buildings of 20,000-200,000 square feet, medical office parks, neighborhood retail centers, and Class B and B+ commercial portfolios.
What we do for commercial clients
Rooftop unit (RTU) service and replacement
Carrier WeatherMaker, AAON, Trane Voyager, and Daikin Rebel package units. Replacement scheduling that accounts for occupied-building constraints. Crane logistics, electrical disconnect coordination, and roof curb work handled in-house. Most RTU replacements run on a phased schedule to maintain partial conditioning during installation.
Chiller plants and chilled-water systems
Air-cooled and water-cooled chiller service and replacement up to 600 tons. Pump replacement, expansion-tank work, and chemical treatment program coordination. We do not own a CTI-certified cooling-tower testing crew — those services are subcontracted to a specialist firm we have worked with since 2011.
VAV zone retrofit and TAB
Variable air volume zone retrofit on existing buildings, including new VAV box installation, terminal-unit replacement, and reheat coil work. Testing, adjusting, and balancing performed by NEBB-credentialed staff. We are a member of the AABC for balancing on critical-environment projects.
Building Management System (BMS) integration — Niagara, BACnet, Tridium
Niagara N4 framework integration, BACnet/IP and BACnet/MSTP, Modbus RTU and TCP, Tridium drivers. We commission new BMS installations end to end and integrate Halberd-installed equipment with existing third-party BMS platforms. The Raleigh engineering office maintains a small in-house test bench.
ASHRAE-compliant Manual N and Manual D engineering
Manual N for commercial load calculation; Manual D for duct design; ASHRAE 62.1 for ventilation; ASHRAE 90.1 for energy compliance. All calculations are PE-stamped on Halberd commercial projects.
Indoor Air Quality programs for office and assembly buildings (ASHRAE 62.1)
Outside-air verification, CO2 sensor commissioning, filtration retrofit (MERV-13 minimum on commercial), demand-controlled ventilation programming. Particularly relevant for post-2020 commercial portfolios where IAQ has moved from a compliance line item to a tenant-retention concern.
Project portfolio
A 28,000-sf office headquarters in downtown Raleigh
Three Carrier WeatherMaker 25-ton rooftop units replaced on a phased weekend schedule. A VAV-zone retrofit added eleven new terminal units to accommodate a tenant build-out. The existing BMS was migrated from a proprietary platform to a Niagara N4 framework. Project delivered on schedule; the building remained occupied throughout.
A medical office park in Durham (6 buildings, 84,000 sf total)
Service-and-replace contract on six adjacent medical-office buildings for a Triangle-area property owner. Mixed Carrier and Trane equipment, ages ranging from 6 to 19 years. Halberd performs quarterly inspections, manages a planned-replacement schedule, and runs an annual ASHRAE 62.1 outside-air verification across all six buildings.
A 14-building Class B commercial portfolio for a Triangle property manager
Halberd is the dispatched service provider for a 1.8M-square-foot Class B commercial portfolio across Raleigh, Cary, and Morrisville. Each building has a documented equipment inventory, a planned-replacement schedule, and a single point of contact at the Halberd Raleigh office. Emergency dispatch within four business hours, no third-party referral mills.
Engineering staff
- Phillip Halberd, PE — Director of Engineering
- Licensed PE in mechanical engineering. ASHRAE Distinguished Lecturer. Twenty-five years of commercial design experience. Leads scope-of-work development and ROI analysis on commercial proposals.
- Jonelle Park, PE, LEED AP — Staff Engineer
- Licensed PE in North Carolina and Virginia. LEED AP BD+C. Eleven years of commercial engineering. Leads BMS-integration projects and commercial Manual D duct design.
- Four commercial-credentialed service technicians
- NATE Service Core and equipment-manufacturer credentials on Carrier, Trane, Daikin, and Mitsubishi commercial equipment.
Our commercial maintenance approach
Commercial maintenance is bid separately from residential — the Halberd Concierge Plan is residential only. Commercial maintenance contracts are scoped to the building, the equipment inventory, the occupancy profile, and the owner's planned capital schedule. We do not sell tiered commercial maintenance packages; every commercial contract is a one-page document specific to the building.
Quarterly inspections are typical for commercial RTUs, monthly for chiller plants during the cooling season. The contract names a single Halberd technician as the primary, with a backup named, so the building owner is not introduced to a new face every quarter.
Request a commercial proposal
A commercial proposal request begins with a site walk by Phillip Halberd, PE, or Jonelle Park, PE. The engineering office will produce a written scope document with an itemized cost basis, an installation schedule, and an optional ROI analysis. Proposals typically deliver in seven to fifteen business days depending on scope. References from active commercial clients are available on request.
Capability specifications
Frequently asked
Do you provide PE-stamped scope documents?
Yes. Phillip Halberd, PE, and Jonelle Park, PE, LEED AP, stamp commercial scope documents as standard practice. We also provide ROI analyses on request.
What BMS protocols do you integrate?
BACnet, Modbus, Niagara N4 framework, and Tridium drivers. We integrate with existing building management platforms or commission new installations end to end.
What building types do you service?
Office, medical office, retail, light industrial, assembly, and multifamily buildings over five stories. We do not bid on Class A high-rises above twelve stories.