What is the Difference Between an Estimate and an Invoice?

Although they may seem similar, invoice vs. estimate are two very different terms. There are quite a few differences between the two. One is part of pre-construction services and the other is billing.

The experts at Commercial Building, Inc. (CBI) are here to help explain how estimates and invoices work for commercial construction.


An estimate is a document that is an important part of pre-construction services. This document tells you what a project will cost. It is a proposal of services that outlines each step and the amount of money it will require. It is recommended to speak to several companies in order to get a good idea of cost.

In addition, make sure to take into consideration the amount of experience and expertise with the cost estimate when choosing the company to work with.


An invoice is another word for a bill of services that have been completed. In construction, an invoice usually comes after certain work has been completed. Invoicing may be after a month or whatever set time is agreed upon.

An invoice will detail exactly what has been completed, the specific cost for work, the price, and the due date for payment. Invoices should be easy to understand in order for you to know just what you are paying for at each part of your commercial building project.


Commercial Building, Inc. has participated in over 125 commercial projects including upfits/renovations, medical construction, retail construction, industrial construction, new construction, and other commercial renovations in North Carolina. When you receive an estimate from us for a commercial construction project, you can be assured that thorough planning has gone into it to be as accurate as possible to the final price. The last thing you want is for costs to derail during a project and end up having to spend way more money than planned.

When you receive an invoice from us and have questions, don’t hesitate to reach out. Your project manager can sit down with you and answer any concerns you may have.

Knowledge of invoices and estimates is a vital part of the construction process. At Commercial Building, Inc., we’ll partner with you to make sure that your project goes on without any problems. You will always know what you’re getting with us.


Commercial building companies like Commerical Building, Inc. are key players when it comes to commercial building and understand the difference between mediocre and exceptional service. At CBI, we go above and beyond with our clients, and our reputation is strong because of it. See for yourself in our portfolio on our website. At CBI, understanding your goals for your project is the first step in our construction process. We’ll use this to inform everything we do, from pre-construction to project closeout.

Based in North Carolina, CBI has been helping business leaders transform their vision into reality. From blueprints to cutting a ribbon at a grand opening, our diligent construction contractor services double-check every logistical component. Our experienced team guarantees that your project does not run into delays or cost unnecessary cost overages.

At CBI, we can assist you with all aspects of construction. Our team can help you with every step of your building project. Contact us today to see how we can assist you with obtaining your building permits or anything else you may need.

We offer services in Fayetteville, Pinehurst, Southern Pines, Lumberton, Sanford, Fuquay-Varina, Apex, and many other cities in North Carolina. For more information, give us a call at 910-818-6811 or you can email us at