Estimating commercial air duct cleaning projects is different that estimating and pricing residential projects. You cannot count the number of vents or go by the square footage of the building to estimate commercial projects. There is such a wide variety of HVAC system types that a simple one size fit all estimating approach will not work.
A workable estimating plan/process must be able to handle the wide variety of HVAC systems and components found in today’s commercial buildings. Plus, you must have a good understanding of the various components that you will encounter because each of these components can offer their own unique cleaning challenges. Your goal is to have an accurate and repeatable estimating process so you can win more projects on a consistent basis. Let’s look at the basic steps:
1. Review and understand the cleaning specification.
Get a set of blueprints for the project. You will need to know how to read blueprints. Large projects can have many pages of blueprints that can be very challenging. The best way to approach something like this is to look at one air handler and its associated duct work at a time. The mechanical prints can also have important information regarding the scope of the air duct cleaning requirements and a schedule of units. All of this information is very important because it helps you to understand the HVAC system you are estimating.
This will help you understand the project and let you see anything that will affect accessibility to the cleaning of the HVAC system. Accessibility to the HVAC system and components will help determine the production rate you will use. Good accessibility generally means a faster production rate and poor accessibility means a slower production rate.
After you have looked at and gained a good understanding of the mechanical blueprints and have done a walk through of the project you are ready to start working on your estimate. Based on the blueprints, you break down the HVAC system into its component parts and determine the number of each component you have. For example:
Once the take off is complete, you determine the number of man hours needed to clean each component. For example:
Summary:At this point you will end up with an estimate of the following items:
- Labor estimate
- Consumable supplies estimate
- Miscellaneous items estimate
You add these up plus any taxes of fees that maybe required and you have your estimate. For a more detailed look and a walk through of this estimating process, request our “Introduction to Estimating Commercial Products Guide” below. If you have any questions please contact Peter Haugen at 855-Vac-Systems, 952-808-1619 or email@example.com .