Rooftop ventilation units on a corrugated metal roof

Commercial property inspection services come in more shapes than most first-time buyers expect. You might order one general inspection, or you might end up with a roof survey, a mechanical review, an environmental report and a code check, each from a different firm, each in its own format. Knowing what each one covers helps you order the right work, and knowing how to use the results is where the money you spent actually pays off.

The main types of commercial inspection

Property condition assessment. The broad one. An inspector walks the building and reviews its major systems: structure, roof, exterior, mechanical, electrical, plumbing and life safety. The result is usually a property condition report with observations, estimated remaining life and suggested repairs.

Roof inspection. A closer look at the roof covering, flashing, drainage and any signs of leaks. Often ordered separately when the general report flags the roof as near the end of its life.

Mechanical, electrical and plumbing reviews. Specialist looks at heating and cooling equipment, panels and wiring, and water and drain lines. Useful when equipment is old or the building has changed use.

Environmental reviews. These look at things like asbestos, lead paint, mold or past uses of the site. They are typically done by environmental specialists, not general inspectors.

Code and accessibility reviews. These check how the building lines up with current requirements in your area.

Not every deal needs all of them. Start with the condition assessment and let its findings tell you where to dig deeper.

How to compare providers

When you ask for quotes, compare these points rather than price alone:

Scope in writing. Which systems are covered, and which are excluded?
Access. Will they inspect the roof, mechanical rooms and tenant spaces, or only common areas?
Report format. Ask for a sample. Can you find a specific issue quickly?
Cost estimates. Do they give repair cost ranges, and are those clearly labelled as estimates?
Turnaround. Does the timing fit your due diligence period?

A clear sample report is often the best sign you will get a useful one.

Getting value out of the reports

The inspection is only worth what you do with it. A few habits help.

Separate what was seen from what was guessed. "Roof membrane is blistered in three areas" is an observation. "Roof may need replacement within five years" is a judgment. Both matter, but they carry different weight in a negotiation.

Treat alternatives as alternatives. If a report offers a repair option and a replacement option, the replacement is not automatically your cost. It is one scope among several.

Do not count history as future spend. A note that the boiler was replaced last year is useful context, not a capital need.

Combine what overlaps. When the condition report, the roof survey and a seller's disclosure all mention the same leak, it is one issue. Track it once, with every document that mentions it as evidence.

Write down what is still open. Every "could not access" or "recommend further evaluation" is a question. Note who can answer it: the seller, the property manager, a contractor.

There is more on this in our commercial real estate due diligence checklist.

Where Deferred fits

Deferred does not inspect buildings. It reads the inspection reports you already paid for. You upload them, and Deferred pulls out the findings with a citation to the page each one came from, merges the same condition across documents into one finding, and raises the open questions with a suggestion of who to ask. You can export a Condition Brief for the building and see your properties side by side.

If you have reports sitting in a folder, you can read your first building free.