Moving From Residential to Commercial Construction

The first commercial job I ever took was a deck. A restaurant wanted a big outdoor patio deck attached to the building, the number was good, and I'd been building decks for years, so I said yes on the phone before I'd thought about it for more than a minute. I knew how to build a deck. What I didn't know was anything about the permit requirements for that occupancy, the load ratings for a space where a hundred people might stand at once, the drawings the city wanted stamped, or the liability that comes with a public building. By the time I understood what I'd agreed to, the margin was gone, spent on a learning curve I paid for out of my own pocket.

I think about that deck every time a residential company tells me it's thinking about moving into commercial work, because the reasoning is almost always the same as mine was. We know how to build. The work is there. How different can it be?

Why the question is coming up now

The question is coming up a lot this year, and for a good reason. BuildForce Canada's outlook for 2026 to 2035 expects residential construction investment to soften through 2028, while non-residential work stays at historically strong levels. If most of your work is new homes or renovation and your backlog is thinning, the commercial, institutional and industrial side looks like the obvious place to go. For some companies it is. For others it's an expensive way to learn what I learned on that deck, except at a company scale with forty people's wages riding on it.

The difference between those two outcomes usually isn't how well the crews build. It's whether the company treated the move as a decision with a cost, or as the next job that came along.

What actually changes

The work itself changes less than people expect. A wall is a wall. What changes is everything around the work, and that's where residential companies get hurt.

Estimating changes first. Residential work is often priced from a walk-through, a conversation and a set of drawings the homeowner may or may not stick to. Commercial work is priced from a tender package: drawings, specifications, addenda, and a bid form due at two o'clock on a Tuesday, with no room to come back later and say you missed something. An estimator who is very good at pricing kitchens can get badly hurt reading a specification he's never seen the like of, and the job that cost me $22,000 was an estimate built on optimism rather than experience with that kind of work. Commercial tenders punish optimism faster.

The client changes too. You're no longer dealing with a homeowner who's excited about their house. You're dealing with a developer, a general contractor or an institution, with a project manager whose job is to hold you to the contract, a formal change order process, and progress claims that get reviewed, adjusted and paid on their schedule, not yours. The money comes in slower and with holdback taken off it, which changes how much cash the company needs to carry a job.

Then there's the paperwork, which is the part that surprises residential companies the most. Submittals, shop drawings, requests for information, safety documentation for a site with other trades on it, closeout manuals, warranty packages. On a commercial job somebody in your company spends a real share of their week just keeping up with documents. If nobody in the office has done that before, it either falls on a PM who's already full, or it doesn't get done and you find out at closeout when the holdback doesn't get released.

Bonding, banks and supervision

Many commercial and institutional jobs need bonding, and a surety looks at a company very differently than a homeowner does. They want reviewed or audited financial statements, a work-in-progress schedule, evidence that your estimates hold up, and management depth beyond the owner. A residential company that has run its books for the tax return rather than for an outside reader often finds out at the first surety meeting that the financial side of the company isn't ready for the work it wants to bid.

Supervision is the other gap. A good residential site lead runs a site with his own crew and a few subs he knows. A commercial site has more trades, more inspections, more coordination meetings and more formal communication, and a supervisor who's excellent at the first can struggle with the second. Moving into commercial work often means hiring or developing a different kind of field leader, and that's a cost that shows up long before the first commercial job pays.

Treat it as a decision, not a job

None of this means a residential company shouldn't make the move. Some of the steadiest companies I know got that way by adding a commercial side when their residential market dipped. But the ones that did it well treated it as a company decision, and the ones that struggled took it one job at a time.

Treating it as a decision starts with picking the segment that sits closest to what you already do well. A renovation company is better placed for tenant improvements and small institutional renovations than for a new commercial building from the ground up. A framing company might go after multi-family before it goes after steel. What actually differentiates you in residential work doesn't disappear in commercial; it just has to be pointed at the part of the market where it counts.

Then it means costing the move before you bid. What does the estimator need to learn, or who do you need to hire? What will the surety want to see, and how far is the company from showing it? How much more working capital does a job with slower payment and holdback need? Who in the office handles the documents? Who runs the site? Put a rough number on each of those and you have the real price of entry, which is usually more than the first job's profit.

Last, it means bidding a small number of jobs on purpose and tracking every one of them line by line, estimate against actual, so that after a handful of jobs the company knows whether commercial work makes money for it or just keeps the crews busy. Busy and profitable aren't the same thing, and a slow residential year makes busy look very attractive.

Sometimes the answer is to stay put

It's worth saying out loud that sometimes the right answer is not to move at all. A residential company with a strong name, a loyal referral base and a lean overhead can often ride out a softer market better than it could survive a badly run move into work it doesn't understand. When it's time to pivot is a real question, and the honest answer depends on the company's numbers and people, not on where the headlines say the market is going.

The Bottom Line

A slower residential market is a good reason to look at commercial work, and a bad reason to jump into it. The crews can probably build it. The question is whether the estimating, the office, the balance sheet and the field leadership can run it, and what it will cost to get them there. Answer that before the first tender goes out, and the move is a strategy. Skip it, and it's a restaurant deck with your company's name on it.

If your company is weighing a move into commercial work, I'll go through what it would actually take — your estimating, your people, your numbers — before the first tender goes out. See how management consulting works.