How to choose a construction company for a commercial project

Updated on 07/06/2026 by EZA Engenharia

How to choose a construction company for a commercial project is a question that usually comes up too late, when the project is already behind schedule or the budget has already blown up. An entrepreneur racing to open a store, a doctor opening a clinic, an office moving to a new address: everyone is in a hurry and no one has time for mistakes. The difference between a project that delivers on time and one that becomes a headache usually comes down to four points you can check before signing any contract.

Specific experience with commercial projects, not just projects in general

Building a house and building a store are two different crafts, even if the cement is the same. A clinic needs electrical and plumbing installations designed for specific equipment. A law office needs acoustics and a service flow that works. A restaurant depends on ventilation, a gas point and a properly sized kitchen technical area. An industrial warehouse requires structural calculation for load and a ceiling height that a construction company without experience in this type of project simply doesn't master right away.

Ask directly: how many commercial projects has this construction company delivered? Which segments? In recent years EZA has built for segments quite different from one another, such as the Decor Export store, the Miocuore Clinic, the Werner Backes Advogados office and the commercial area of Hotel Centenário. Each of these projects has its own technical demands, and having done all four shows the team knows how to adapt without reinventing the wheel with each new project.

A defined deadline and a schedule you can follow

A stalled commercial project costs money every single day. While the store stays closed, the rent keeps running, the hired staff waits, the launch marketing misses its date. That is why the deadline cannot be a vague promise like "in about four months." A serious construction company presents a schedule with stages, dates and delivery milestones before the project begins, and updates that schedule as the work progresses.

Be wary of anyone who does not want to commit to dates or who promises deadlines that are too short just to close the contract. Ask how the company handles the unexpected, because it happens: rain, supplier delay, design adjustment. What separates an organized construction company from an amateur one is not never having a problem, it is knowing how to communicate and recover the schedule when one comes up.

In-house engineering, from design to execution

When the same company handles the design and the execution, the number of intermediaries drops and so does the rework. An engineer who designs while thinking about how it will be built avoids solutions that look good on paper but are unfeasible on-site. And when something unexpected comes up along the way, which it always does, the decision is made by someone who understands structural calculation and the job site at the same time, not over the phone between the architect and an outsourced construction company.

EZA has worked this way for more than 35 years: from design to execution, with in-house engineering. This means clear technical accountability, a single team answering for the result and fewer people passing the blame for delays or mistakes back and forth.

A portfolio you can actually visit

Beautiful photos on the website are easy to get. What truly proves experience is a portfolio of projects that exist, that you can visit or, at the very least, discuss with whoever commissioned them. Ask for references from clients in segments similar to yours and call them. Ask whether the agreed deadline was met, whether communication during the project was good, whether unforeseen extra costs came up.

EZA has been building in Criciúma, Içara, Forquilhinha, Nova Veneza, Cocal do Sul, Balneário Rincão and the surrounding region for more than three decades, and has projects such as the SATC building, the Miocuore Clinic and the Hotel Centenário to show for it. A solid portfolio is not just a showcase: it is the track record that tells you whether a construction company delivers what it promises.

What to ask before signing a contract

After checking experience, timeline, engineering and portfolio, it is still worth sitting down with the construction company and asking objective questions before signing anything. This avoids surprises midway through the project, which is always the most expensive time to discover a problem.

• Who will be the technical lead and who will be the day-to-day point of contact on-site
• How the price adjustment works in case of a scope change requested by you
• Which materials are in the quote and whether there is an upgrade option with clear cost
• How the final inspection and handover of keys are done

Hiring a construction company for a commercial project should not be a decision based on the lowest budget or on "thinking it will work out". It is an investment that ties up capital, sets the opening date and determines whether your business will run well in that space for the coming years. Ask for a portfolio, talk to those who have already built with the company, understand how the schedule is managed and confirm whether there is in-house engineering behind the project. EZA Engenharia has been building commercial projects in Criciúma and the region for more than 35 years, with projects such as the Decor Export store, the Miocuore Clinic, the Werner Backes Advogados office, the Hotel Centenário and the SATC commercial project. If you are evaluating construction companies for your commercial project, talk to us on WhatsApp (48) 99191-2018 or by e-mail at [email protected]. We show the portfolio, explain how we work and help bring the project off the page with a schedule and engineering you can check.