Design-Build Mechanical & HVAC Delivery
Design-build project delivery gives owners and developers a single point of responsibility for both the design and construction of mechanical systems — reducing coordination risk, compressing schedules, and providing cost certainty earlier in the project cycle.
Vences Contracting Group provides design-build mechanical and HVAC services for commercial projects, coordinating directly with owners, developers, and architects to develop system designs and deliver fully commissioned installations under a single contract.
Design-Build Advantages
Single Point of Accountability
One contract. One team. One point of contact for design, procurement, installation, and commissioning. Design-build eliminates the gap between design intent and field execution that creates change orders and delays in traditional delivery.
Earlier Cost Certainty
By engaging Vences early, owners receive preliminary mechanical system pricing before construction documents are finalized — enabling informed budget decisions and value engineering before costs are locked in.
Faster Project Delivery
Design and construction phases can overlap under design-build, compressing the overall project schedule. Equipment procurement begins earlier, reducing lead time risk.
Design Optimized for Constructability
Our design-build approach produces mechanical designs that reflect real-world installation constraints — reducing RFIs, coordination conflicts, and field modifications during construction.
Our Design-Build Process
- 1. Pre-Design Consultation — Review of project program, site conditions, owner requirements, and budget parameters.
- 2. Preliminary System Design — Develop mechanical system concept, equipment selection, and preliminary layout for owner review and approval.
- 3. Design Development — Coordinate with architect and structural engineer to finalize mechanical design, produce construction documents, and submit for permit.
- 4. Procurement — Equipment and materials procured in parallel with design finalization to reduce lead time impact on schedule.
- 5. Installation — Field installation by our licensed crews per approved construction documents.
- 6. Commissioning & Closeout — System startup, functional testing, commissioning documentation, and O&M package delivery.
Frequently Asked Questions
What is the difference between design-build and traditional design-bid-build for mechanical systems?
In traditional design-bid-build, the mechanical engineer produces construction documents independently, then contractors bid on the completed design. In design-build, Vences takes responsibility for both the design and construction under a single contract — providing earlier cost certainty, faster delivery, and a single accountable party.
Do you work directly with building owners or only with general contractors?
For design-build projects, we work directly with project owners, developers, and architects. For traditional construction delivery, we operate as a mechanical subcontractor under the GC. We are structured to support both project types.
Can you coordinate with an architect or MEP engineer of record on a design-build project?
Yes. On design-build projects where an engineer of record is required by the owner or jurisdiction, we coordinate directly with the EOR to develop and stamp the mechanical construction documents.
How do you handle design-build pricing?
We provide preliminary budgeting based on the project program and site conditions, followed by a lump-sum or GMP proposal once the design is sufficiently developed. This gives owners cost certainty before full construction documents are completed.
What project types are best suited for design-build mechanical delivery?
Design-build works well for projects where the owner wants schedule compression, early cost certainty, or a single accountable party — including tenant improvements, owner-occupied commercial buildings, warehouse and industrial facilities, and repeat-prototype retail or restaurant buildouts.