Category Archives: Engineering

How Are Bids and Estimates Different in Construction?


A New York-based business manager, Mohammad Riaz leads National Restoration Group, Inc., in the Bronx. With his guidance, the company provides a range of services, including masonry, structural, waterproofing, rehabs, and roofing services. In his capacity as manager, Mohammad Riaz handles the bidding process for all projects.

In construction, many people use the terms “estimate” and “bid” interchangeably. However, the two terms have very different implications in terms of price and scope of various projects.

Of the two, estimates are more flexible. These provide customers with information about the expected cost of a certain project. While estimates should be as accurate as possible, there is no expectation that they are 100 percent accurate. Rather, they provide customers with a ballpark figure of the cost of the project, and the actual cost of the project may be either above or below the estimated value.

The purpose of providing an estimate to customers is to manage client expectations. Estimates do not overwhelm clients by providing too many details about the project, but are still accurate enough to help clients compare different contractors and other professionals.

Meanwhile, construction bids are much more precise since they typically represent the final price that is charged to the customer. They are firm offers, and are typically only used when the scope of a proposed project is clearly defined. This is essential for construction professionals because they must evaluate the material, labor, profit, and other costs associated with doing the project to ensure they create an accurate bid.

Due to the fact that creating an accurate bid requires much more effort, customers rarely request a formal bid unless they are genuinely interested in doing business with a particular company. Further, once a customer accepts a bid, companies must adhere to the cost and process outlined in it.

The NACE Robotics in the Corrosion Industry Seminar

National Association of Corrosion Engineers

Mohammad Riaz is a New York City construction industry leader with a wealth of experience working on high-rise buildings. He has owned and operated the Bronx’s National Restoration Group for nearly 10 years. In addition to his volunteer work with various charities, Mohammad Riaz is a member of the National Association of Corrosion Engineers (NACE) International.

Founded in 1943, NACE International has become the leading global association in the corrosion prevention and control sector. As part of its educational endeavors, the organization sponsors regular courses and events such as the upcoming seminar on robotics in the corrosion industry.

Part of the NACE Corrosion Technical Series, the Robotic Capabilities for Surface Preparation, Integrity and Corrosion Management is a two-day seminar that will take place at NACE International headquarters in Houston, Texas, on October 15-16, 2019. This seminar will discuss specific unmanned robotic technologies, particularly prevalent in the oil and gas industries, that conduct corrosion inspection and perform other physical tasks such as water blasting/grinding and applying corrosion-resistant coatings. Seminar speakers include Steven Trevino of SPRINT Robotics and Kim Hayes of Olympus Scientific Solutions.

Materials Performance Magazine

Materials Performance Magazine

As the owner and manager of National Restoration Group in the Bronx, Mohammad Riaz has completed a range of high-rise renovation and construction projects throughout Greater New York City. To inform his professional activities, Mohammad Riaz holds membership in the National Association of Corrosion Engineers.

All members of the National Association of Corrosion Engineers (NACE) receive access to a range of industry resources, including several specialized publications. One of these is Materials Performance Magazine.

Published by NACE International each month, Materials Performance Magazine includes a range of technical articles and features that relate to issues and advancements in the field of materials performance. Specific corrosion control technologies covered by this publication include coatings/linings, cathodic protection, chemical treatment, and the selection and design of materials to address corrosion problems. Materials Performance Magazine also publishes news stories that relate to the greater corrosion control industry and NACE in particular.