You’ve been using the same general contractor for years. Maybe a decade. They came up the list when your predecessor was in your seat, or when your firm was smaller, or when the building was newer and the work was simpler. The relationship is comfortable. They know your standards, your schedule preferences, your tolerance for change orders, and which tenants need extra hand-holding during construction.
When was the last time you actually evaluated whether they should still be on the list?
Most property managers and asset managers can’t answer that question. The list gets maintained by inertia. The same firms get the same calls year after year, and the only time the list gets reviewed is when something has gone catastrophically wrong. By then, the slippage that produced the catastrophe has usually been visible for a long time.
This article is about how to evaluate a vendor list before that point, what to actually look at, and how to handle the conversation when the evaluation suggests change.
Why inertia is sometimes the right call
The case for sticking with incumbents is real, and any honest article about vendor list management has to start by acknowledging it.
Relationships compound. A GC that’s worked on your buildings for a decade knows things a new firm would take years to learn. Where the existing utilities run. Which roof drains have been giving you trouble. How your lease language treats tenant build-out costs. The names and quirks of the other vendors and tradespeople who pass through. That institutional knowledge is hard to value and easy to take for granted, and it walks out the door the day you replace the firm.
Switching costs are real. A new vendor needs to learn your buildings, your standards, your team, your operational rhythm. The first project with a new firm almost always costs more in coordination time, communication friction, and decision delays than the same project would have with the incumbent. The savings on the bid sheet often disappear in the operational cost of being someone’s training project.
Familiarity has its own value. You know how this firm responds to problems. You know which calls they’ll take after hours and which they won’t. You know what their punch-list discipline looks like and how they handle warranty calls in year three. A new firm is unknown on all of those dimensions, and the unknown costs more than most PMs realize.
The default position should be cautious about replacement. The right question to ask is whether this vendor is still earning their place on the list, given everything you’ve seen recently.
The warning signs that earn a closer look
Performance slippage rarely shows up all at once. It accumulates in small signals over months or years. The PM who notices early can address things while there’s still time for course correction.
Bid response time stretches out. A firm that used to turn around bids in two weeks now takes three or four. The estimator is harder to reach. The proposal arrives less polished than it used to be.
The senior person stops walking projects. When you first started working with the firm, the principal or a senior partner walked the project before bidding. Now a project manager walks it, and the senior partner only shows up for problems. That’s a signal about where your projects rank in the firm’s priority order.
The trade roster is changing. The mechanical contractor who’s been on every project for years is suddenly replaced by someone you don’t recognize. The new electrician has a different name on the certificate of insurance. The firm has changed its trade partners, possibly because the long-term partners have themselves moved on, possibly because the firm is sourcing on price now rather than relationship.
The schedule slips in ways it didn’t used to. Projects that would have wrapped on time five years ago now run two to three weeks long. Punch-list close-outs that used to happen within a week of substantial completion stretch to a month. The firm still gets there, but the rhythm is off.
The change orders get more aggressive. The change order for that minor scope addition cost more than you would have expected. The firm is now charging for things that used to be absorbed in the original price. The pattern has shifted.
The communication gets thinner. Status updates are less detailed. Questions take longer to answer. The firm is responsive when you escalate but quiet when you don’t. The proactive communication that used to be the firm’s strength has become reactive.
None of these signals are individually disqualifying. Any one of them might just be a bad month, a personnel issue, or a temporary capacity problem. The pattern matters. When two or three of them show up together over six months, the firm is telling you something about itself.
How to evaluate without burning the relationship
The instinct, when slippage shows up, is to either ignore it (because the relationship matters) or to start taking bids from other firms without telling the incumbent (because you don’t want a confrontation). Both approaches make the situation worse.
Better: be direct with the incumbent about what you’re seeing.
Schedule a coffee or a call. Name what you’ve noticed in plain terms. The bid response is taking longer. The senior person isn’t walking projects anymore. The change orders are running heavier. Ask what’s going on. The firm’s answer is informative.
Some firms will respond well. They’ll tell you about a key person who left, a capacity crunch, or a strategic shift, and they’ll explain what they’re doing about it. If the answer feels real and the corrective action seems credible, give it six months and re-evaluate.
A defensive response is itself information. A firm that disputes the signals, attributes them to your perception, or implies you’re being unfair is a firm that can’t hear feedback from a long-term client. The relationship may already be lost even if neither side has acknowledged it.
Sometimes the conversation itself is the corrective action. The estimator returns calls faster. The senior partner shows up at the next walkthrough. The signals fade. The firm needed the conversation that nobody wanted to have, and they responded to it without making a production of it.
This approach also makes it possible to bring in alternative bidders without it feeling like a betrayal. If you’ve already had the direct conversation, adding a second firm to the next bid round is a natural next step rather than a stealth move. The incumbent knows you’re evaluating and has a chance to compete.
What to do with what you find
After the conversation and the comparative bid, you’ll usually find one of three patterns.
The incumbent is still the right firm. Their response to the conversation was thoughtful, the comparative bid showed that their pricing is reasonable, and their relationship value is real. Stick with them, and check in every twelve to eighteen months going forward.
The incumbent has earned a probation. They’ve slipped, the conversation was a wake-up, and they need to demonstrate corrective action. Give them the next project but watch closely. Set a clear internal threshold for what success looks like, and decide in advance what you’ll do if they hit it or miss it.
The relationship has run its course. The firm has changed in ways that don’t fit the work you need anymore. Ownership transition, capacity outgrowth, strategic drift, key personnel loss. The kindest move at this point is to communicate the decision directly, complete any active projects with grace, and bring on a replacement intentionally rather than letting the relationship dribble out.
In the third case, the way you handle the transition matters as much as the decision itself. A firm that’s been a long-term partner deserves a real conversation about why the relationship is changing, not a slow ghosting. The construction industry is small. The way you treat a former vendor will follow you into the next set of relationships.
How this looks from the vendor’s side
Vendor lists in commercial real estate are sticky in a way they aren’t in most other industries. The volume of work flowing through a single property manager or asset manager is large enough that being on the list is genuinely valuable to a vendor, and being trusted on the list is more valuable still. That trust gets earned over years and lost over months.
The asymmetry cuts both ways. Vendors who earn their place can build durable businesses around a few key clients. Vendors who lose their place can struggle to recover, even when the slippage was temporary. The asymmetry is part of why honest, direct conversations about performance matter so much. Both sides have something to lose by avoiding them.
Most experienced commercial GCs have been on both sides of this pattern. They’ve been incumbents who lost a list because performance slipped without anyone noticing. They’ve been the alternative who came in when a long-time vendor lost their place. At Ironstone Development, the commercial division of a multi-state general contractor, we approach our work with the assumption that the next project isn’t guaranteed. The way we work, the proposals we write, the trade partners we bring, and the way we communicate during the build are calibrated to earn the next call rather than count on it. If you’re a property manager working through a vendor list refresh, that’s the posture we’d hope to bring whether we’re on the list already or trying to get on it.
If you’ve been thinking about a vendor list review, the right time to start is before something has gone wrong. The conversation is easier when nothing is on fire, the bids come in cleaner when the incumbent isn’t defending themselves, and the relationship has the best chance of either deepening or ending well.
