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If your residential project is located outside of Texas, or you're a builder or architect and would like to order multiple HVAC calculations at a discount, please do NOT use this form. Instead, let us know by leaving us a message on our Contact Us page.
If you'd like us to perform a Manual J and/or Manual S and/or Manual D or draft mechanical plans for your residential project, please fill out the order form below. There will be a link at the end of the form that will allow you to upload plans in a pop-up window. The Manual J calculation requires a lot of information that may not be included in your architectural plans, so if there's any required information missing from what you've submitted we'll let you know when we reply to your submission. We typically respond to orders by the next business day.