our services


JJ Innovations has been offering our clients quality and reliable MEP shop drawing services for years at very competitive prices. The shop drawings we produce are made with the primary focus of improving the overall quality and output efficiency of a project. Our engineers have a vast working knowledge making them capable of developing MEP shop drawings that can be used to find the discrepancies before field installations. 

MEP services offered

  • Electrical Shop Drawing
  • Mechanical CAD Conversion Services 
  • Mark-up Detailing
  • Piping Shop Drawing
  • HVAC Duct Shop Drawing
  • Shop and Fabrication Drawings
  • Coordination Drawings
  • As-built Drawings
  • Ductwork Layout Drawings
  • Plumbing Shop Drawings


  • Prepare mechanical calculations for the proposed site to determine the required HVAC tonnage     for the system using Manual J & D Load Calculations Software 
  • Design mechanical systems 
  • Size, select and specify any required devices and equipment for the mechanical systems 
  • Design distribution and layouts as needed on CAD 
  • Prepare equipment schedules and riser diagrams 
  • Preparation of required NYC ECC Comcheck calculations and compliance reports 
  • Prepare design specifications and notes 
  • Prepare As-built drawings 
  • Prepare Submittals


  • Analyze and takeoff the sheet metal contained in the mechanical drawings 
  • Measure to scale all linear feet of ductwork and label all sizes of sheet metal 
  • Our computerized software determines the weight and gauge based on the size of the sheet metal 
  • We can provide you with a price for sheet metal fabrication and installation based on the mechanical drawings ready for bid submission 


  • PE review, sign & seal of HVAC drawings 
  • Sign-on for inspections
  • Secure work permits
  • Sign-off for final inspection
  • Mechanical and energy code sign off
  • Special inspections signoffs
  • File Mechanical Drawings
  • Prepare all DOB forms
  • Obtain EUP (Equipment Use Permit)
  • Letter of Completion

Benefits for using our coordination services include

  • Detailed duct workshop drawings for fabrication and installation 
  • Coordination drawings 
  • “As-Built” Drawings for record submittal 
  • Support for Design-Build project 
  • All HVAC shop drawings will show the routing of ductwork closely following the contract drawing 
  • Ductwork will be drawn to match your shop standards. (SMACNA standards used if not provided) 
  • Dimensions showing ductwork and gridline relationship 
  • All ductwork will show size, length of each piece, top and bottom elevations.  
  • Riser duct will be shown if needed including shaft duct detailing 
  • Exact placement of VAVs, AHUs, EFs and RTUs units showing access required for service 
  • Placement of grilles, registers and diffusers 
  • Equipment pads, fire dampers, duct penetration, roof frames, motorized dampers 
  • Help everyone from the project manager to the field installers by letting them see a detailed coordinated drawing of your project while installing, from every fitting to every joint of ductwork. 
  • Make accurate material take-offs minimizing your fabrication and installation costs. 
  • Cut down on the expensive fabrication of fittings that do not end up being installed and costing money not only in fabricating but also in transporting, handling and storing.
  • Advance coordination with other trades eliminates field installers showing up on a job site and fighting for space to install ductwork, pipe, and equipment. Early coordination of ductwork and piping leads to higher profit margins by not wasting time and money trying to coordinate duct layout and elevations after the job has already started.

JJ Innovations caters to the MEP and HVAC drafting

needs standards like

  • IECC – International Energy Conservation Code  
  • ASHRAE standards – The American Society of Heating, Refrigerating and Air-Conditioning Engineers standards  
  • NFPA codes – National Fire Protection Association codes 
  • SMACNA  Sheet metal & Air Conditioning Contractors’ National Association 
  • MANUAL J – Heating and cooling loads of a home or building 
  • ACCA – Air Conditioning Contractors of America


  • AutoCAD 2018 
  • Elite Software RHVAC 
  • Elite Software CHVAC 
  • Mitsubishi Diamond System Builder 
  • Daikin Design Software

Our quality assurance: 

We offer well-organized MEP shop drawing services that are in coordination such that the errors are identified and resolved before the filed installation begins. Here at JJ Innovations, we realize the fact that shop drawings are the backbone of the fabrication industry and that it is a vital part in determining the profitability of a project. 

The team of quality analysts at JJ Innovations follows a proven methodology for the quality inspection of the MEP drawings. We put every design through a rigorous quality inspection at each stage, to ensure that the client requirements are met with the highest standards without compromising on the quality.

Why hire JJ Innovations? 

  • Availability of qualified, skilled and certified engineers 
  • Competitive price 
  • Better information to the erection crew 
  • combination of skilled labor and sophisticated technology 
  • Innovation and creativity guaranteed 
  • Accuracy and precision 
  • Avoidance of spatial issues between various MEP components 
  • Quick turnaround time 
  • Guaranteed customer satisfaction 
  • Reduction of the total project cost

Contact us





office address

JJ Innovations LLC
2904 Clarendon Road, Suite 3R
Brooklyn, NY 11226

Contact now