A comprehensive database of materials and specialty items are preloaded. Fast and efficient real -time takeoff provides accurate labor hours and materials, as data is entered. Minimal set up and training is required to start bidding projects, accurately and productively. Most of our clients are trained over the Internet during technical training sessions. The cost estimating software incorporates Windows ease-of-use with the industries best estimating technology. Wendes works closely with its clients to comply with individual requirements during implementation, training and on-going customer support.

What has always distinguished Wendes Systems, Inc. continues:

"Putting the client first and foremost... a willingness to change with the times and adopting new technology to provide better results"

Wendes Systems, Inc. was founded in 1976 with the introduction of the Wendes HVAC Sheet Metal Estimating Manual used to teach the fundamentals of HVAC sheet metal estimating. Several other technical publications for the sheet metal and mechanical construction industry have also been published. Today more than 30,000 copies of the Wendes Sheet Metal and Mechanical Estimating Manual are in circulation. The manual has been expanded to include mechanical estimating and continues to be updated for distribution. A vital part of the information contained in the manual are extensive and detailed labor data based on 22 years of productivity studies undertaken by Herb Wendes P.E. during his career in the construction industry.

 A qualified estimator should understand the following details prior to an estimate:
1. A thorough understanding of the ductwork and mechanical systems detailed in the drawing.
2. A sound knowledge of materials,  methods and customs prevailing in the trade.
3. A fund of information collected or gained through experience in the trade, relating to materials required, hourly output of workers and equipment, overhead expenses and costs.
4. An understanding of the process for preparing an estimate.
5. A systematic and orderly mind.
6. An ability to conduct careful and accurate calculations.
7.Ability to collect, classify and evaluate data that would be useful in estimating. 

Instruction or careful and thorough study of an estimating  manual will help a beginner to become an efficient estimator. Estimators should, however, try to develop all the above mentioned qualities while obtaining practical experience.