Our Service
Drawings and Drawings and Permit
10+
Leading Brands
We’ve worked with
AI Innovation.
Getting Your Project Approved and Built Right
Building departments won’t issue permits without proper drawings. Contractors can’t build without clear plans. We provide professional design documentation and handle permit approvals—turning your project vision into buildable, code-compliant reality.
Why Professional Drawings Matter
- Code Compliance – Building officials require plans demonstrating code adherence. Our drawings anticipate inspector concerns and show compliant solutions.
- Accurate Bidding – Detailed drawings allow contractors to provide accurate pricing—no surprises from missing information or unclear scope.
- Installation Clarity – Field crews work from clear plans reducing errors, callbacks, and construction delays from ambiguous instructions.
- Future Reference – Complete documentation helps future service technicians, renovations, and equipment replacements years after initial installation.
What We Provide
- Mechanical Drawings – Complete HVAC, ventilation, and ductwork layouts with equipment specifications
- Plumbing Plans – Gas piping, water supply, drainage, and fixture locations
- Electrical Coordination – Power requirements, disconnects, and control wiring for mechanical systems
- Structural Details – Equipment support, reinforcement, and load calculations when required
- As-Built Documentation – Final drawings reflecting actual installation for your records
Engineering Stamps When Required
For projects requiring professional engineering approval, we coordinate with licensed engineers providing stamped calculations and drawings meeting regulatory requirements.
Load Calculations Included
Proper HVAC design starts with accurate load calculations. We provide Manual J residential calculations or commercial load analysis supporting equipment selection and system design.
Fire Marshal Coordination
Kitchen exhaust, fire suppression, and gas systems require fire marshal review. We prepare documentation addressing fire safety requirements and coordinate approvals.
Health Department Approvals
Restaurant and food service projects need health department plan review. Our drawings show ventilation, equipment layout, and sanitation compliance facilitating approval.
Expedited Processing
Understand local building department procedures and relationships help move permits through review faster. We know what inspectors expect and provide it upfront.
Plan Revisions and Modifications
Projects evolve during design. We handle plan revisions efficiently, updating drawings and resubmitting for approval without starting from scratch.
Existing Building Documentation
Working in older buildings without plans? We field-measure existing conditions, document current systems, and create drawings showing proposed modifications in context
Multi-Jurisdiction Experience
Different cities have different requirements. We navigate varying code interpretations, submittal processes, and inspection protocols across jurisdictions.
Digital and Paper Deliverables
Plans provided in formats you need—PDF for digital distribution, CAD files for future modifications, printed copies for field use.
Where we are essential
Permit Services We Handle
Projects involving significant mechanical systems benefit from contractors who understand both building construction and complex HVAC installations. Our dual expertise prevents common conflicts and delivers superior results.
Application Preparation
Complete permit packages with all required documentation
Revision Management
Making required changes and resubmitting for approval
Building Department Coordination
Submitting plans and addressing reviewer questions
Inspection Scheduling
Coordinating required inspections throughout construction
Contact Metric Air Limited for complete construction services that integrate mechanical expertise with comprehensive building capabilities.