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We are looking for experienced residential HVAC design engineers who regularly perform load calculations, equipment selection, and duct design for U.S. residential projects. We are currently evaluating long-term partnerships for a growing pipeline of residential HVAC design work and would like to understand typical workflows, turnaround times, pricing, and deliverables from experienced professionals in the industry. Scope of Work For an initial project, we need a complete HVAC design package for a 5-bedroom single-family residence, including: Manual J load calculations Manual S equipment selection Manual D duct design Room-by-room airflow calculations Supply and return layout Register and grille sizing Equipment schedule Duct fabrication details Bill of materials Installation notes Deliverables Load calculation report Equipment sizing documentation HVAC design drawings (PDF) CAD files (preferred) Duct layouts and fabrication details Material takeoff / bill of materials What We'd Like to Learn Please include: Your typical turnaround time Your pricing model (per project or hourly) Software used (Wrightsoft, Elite, CoolCalc, AutoCAD, Revit, etc.) Number of residential HVAC designs completed Whether you work directly with contractors or homeowners
Project ID: 40464617
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8 freelancers are bidding on average $504 USD for this job

Hello, thank you for sharing the details. I’m a mechanical engineer with experience supporting HVAC design and technical deliverables. My workflow typically includes reviewing architectural drawings, coordinating load assessment, equipment selection, airflow and duct layouts, and preparing organized HVAC documentation and drawings. Typical turnaround for a 5-bedroom residence is 3–5 business days depending on project inputs and revision cycles. My rate is $25/hour, and I can support either fixed-scope projects or ongoing hourly work depending on your preferred workflow. I work with AutoCAD and Revit and can adapt to client-required HVAC calculation tools and standards. I’m comfortable working directly with contractors or homeowners and am open to discussing long-term collaboration
$140 USD in 7 days
6.7
6.7

Dear Sir, Please contact me to get started. Thanks. I am a Professional Mechanical Design Engineer with 17 years of experience in HVAC system design. I successfully completed the design, drafting and installation of complete HVAC System for various Residential and Commercial Projects as per standards and specifications. I have all the technical skills, experience, and practical project management skills to complete your task professionally and quickly. I will provide all the services as per your requirement. Proficient in AutoCAD, Revit MEP and more. Well-versed in, HVAC Detail Design Layout Complete Equipment Selection based on load and Schedule. Ductwork and Air Distribution Systems Air Filtration and Purification Systems Detailed Equipment Installation Details Duct Sizing Calculation and Routing Cooling and Heat Load Report Ventilation Calculation Report Split Units Manual J, D and S VRF system Design Chillers Air Conditioners Cooling Towers Kitchen Hood Ventilation Heat exchangers Takeoff Sheets Bills of Quantity Technical Specification and more Projects Completed: High Rise/Low rise Buildings, Hotels, Schools, Hospitals, Cold Storage, Villas, Malls, Mosques, Warehouses and More. Standards: ASHRAE, NFPA, IPC, UPC, IMC and more. Skills: Revit MEP, Elite Fire, AutoCAD, Canute, HAP 4.5 (Hourly-Analysis-Program), McQuay (Duct-size), McQuay (Pipe-size), Carrier psychometric chart and more.
$2,000 USD in 6 days
6.4
6.4

Hello there, This is Sajjad Khan. I am an Architect with more than 6 years of experience in my field in Design and Visualization, MEP, Structural etc. I am experienced in Revit, Rhino, Twinmotion, 3ds Max, AutoCAD, SketchUp, Lumion, D5 Render and Blender as well. I have recent experience in similar projects also. It’s an interesting project and I am really excited to start working on it. Please Get in Touch with me for further discussion on the project.. Thanks Sajjad Khan
$300 USD in 7 days
5.8
5.8

I understand you need a complete HVAC design package for a 5-bedroom single-family residence, including Manual J load calculations and Manual S equipment selection, specifically for U.S. residential projects. I have successfully delivered over 100 similar HVAC design packages for new construction and retrofits, consistently meeting client deadlines and code requirements. My deliverable will be a comprehensive design package including: Manual J load calculations performed using Wrightsoft or Elite Software, Manual S equipment selection with specific model numbers and capacities, and Manual D duct design with layout drawings and sizing in AutoCAD or Revit. This will provide you with a clear and actionable blueprint for installation. What is the preferred format for the final deliverable drawings (e.g., PDF, DWG, RVT)? Ready to start as soon as you confirm scope.
$435 USD in 21 days
3.7
3.7

I regularly deliver comprehensive HVAC design packages for US residential projects, mirroring the scope outlined for your single-family residence, including precise Manual J load calculations and Manual S equipment selections. My process ensures all design elements align with ASHRAE standards and local building codes, leading to optimized system performance and energy efficiency. My technical approach involves utilizing industry-standard software such as Wrightsoft or Elite Software for load calculations and duct design. I'll perform a detailed site analysis (based on provided plans/specs), conduct Manual J calculations accounting for building envelope, occupancy, and internal gains, and then select appropriately sized equipment via Manual S. Ductwork will be sized using Manual D principles to ensure proper airflow and static pressure. Deliverables will include detailed drawings, equipment schedules, and calculation reports. To ensure seamless integration, could you clarify if there are specific regional building codes or preferred equipment manufacturers you typically work with? I'm confident my expertise aligns with your needs and would welcome a brief chat to discuss your project pipeline further.
$417 USD in 21 days
0.0
0.0

Bengaluru, India
Member since May 23, 2026
$250-750 AUD
$30-250 USD
₹1500-12500 INR
$15-25 USD / hour
$250-750 USD
$15-25 USD / hour
£250-750 GBP
₹100-400 INR / hour
₹1500-12500 INR
$750-1500 AUD
$8-15 USD / hour
$25-50 USD / hour
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£18-36 GBP / hour
₹1500-12500 INR
£250-750 GBP
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$10-30 USD
₹12500-37500 INR
$1500-3000 USD