5 Questions Every GC Should Ask an Interior Designer Before a Project Starts
I have been on enough job sites to know that the best GC/designer relationships are built before the first wall goes up.
When a general contractor and an interior designer are aligned from the jump, projects move faster, change orders shrink, and clients stay happy. Win, win, win! When they’re not, though, even a beautifully designed project can become a logistical headache.
Most of the friction I have seen between designers and contractors does not come from personality clashes or professional ego (though sure, occasionally). It comes from gaps in process. Nobody asked the right questions at the start, so assumptions filled in where clarity should have been.
So, with that said - here are the five questions I think every GC should ask an interior designer at the beginning of a project. I will answer them the way I would at KJI, because I think transparency here helps everyone.
1. What does your specification package include, and when will I have it?
This one matters more than almost anything else on the list. A designer's specification package is the document that tells you exactly what is going in the space: materials, finishes, fixtures, hardware, appliances, custom millwork details. If you are coordinating subs and ordering materials against a build schedule, you need this information in a complete and timely way.
Ask this question early. If the answer is vague, that is a sign to dig deeper before the project starts. At KJI, our specs are detailed and sequenced to your build timeline. You will know what we have selected, why, and when you need to have it in hand.
2. How do you handle changes to the design scope, and how will I be notified?
Design decisions evolve. A client changes their mind about the kitchen tile. A material gets discontinued. A new option comes up that is better than what was originally specified. These things happen on every project.
What matters is whether there is a clear process for communicating those changes to the GC in real time, not two weeks after the fact. It’s important to ask directly: how do you document and communicate scope changes, and what is your turnaround when something on site needs a fast decision?
A designer who can give you a clear, honest answer to this has thought about the build process. That is who you want on your team.
3. Who is my point of contact on the design side, and how quickly can they respond when I need an answer on site?
On a job site, things can move fast. An answer that takes three days to get is sometimes an answer that costs real money in schedule delays. Before a project starts, it is worth knowing exactly who you are calling when you have a question, what their typical response window looks like, and whether there is a backup contact when that person is unavailable.
At KJI, we always assign a lead on every project, and they are guaranteed to be accessible. We understand that a non-answer on a job site is its own kind of answer, and it is almost never the right one.
4. What decisions have already been made by the client, and what is still open?
This one gets missed more often than it should. A designer may have a client who walked into the process with strong opinions about certain things like a specific tile in the kitchen, a family heirloom piece being incorporated, a material that was non-negotiable from the first conversation. If you don’t know what those decisions are, decisions may be built around assumptions that later conflict with something the client considers locked.
Ask for a brief design summary at the start: what is confirmed, what is still being selected, and what the client feels strongly about. That context changes how you sequence your work and where you leave room for the design to finalize.
5. How do you want to handle communication with the client when questions involve both of us?
Three-way communication between the contractor, the designer, and the client is where most project confusion lives. When the client is asking the GC questions about design decisions and the designer about construction timelines, things get crossed fast. When everyone assumes someone else communicated something, things get missed.
Before the project kicks off, it is worth agreeing on a simple protocol: who owns which kinds of client communication, how scope or budget questions get escalated, and how changes are documented in a way that all three parties can reference.
This is not about creating bureaucracy. It is about making sure the client feels informed without being caught in the middle of two professionals who are not quite in sync.
A Note on Why This Matters
The contractors I have worked with most effectively are the ones who came in with pointed questions. They wanted to understand the design intent, not just execute against a spec sheet. They thought about how the design decisions would interact with their build sequence. They called when something on site was not matching the plan instead of just making a call and moving on.
That kind of partnership makes for better projects. And better projects are the kind that generate referrals, repeat business, and the kind of reputation that builds a career on both sides.
If you are a GC in the Austin area or working on projects nationally and want to explore what a working relationship with KJI looks like, I would genuinely love to connect.
FAQs on Questions Every GC Should Ask an Interior Designer
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Before the build starts, ideally. The most valuable alignment happens at the pre-construction phase, when decisions about electrical plans, plumbing rough-ins, ceiling heights, and structural details can still incorporate the design intent. Connecting after the frame is up means working around things that could have been designed for.
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The designer owns the design decisions: materials, finishes, spatial planning, and the overall aesthetic and functional intent. The GC owns the construction execution. Both should be informing each other's decisions throughout the project, but those authority lanes should be clear from the start.
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The designer should be the first call. Substitutions that seem equivalent from a construction standpoint can have real implications for the design, and the designer needs to approve any change before it is implemented. A good working relationship means the GC alerts the designer quickly and the designer turns around a decision just as fast.
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Redirect and loop in the designer. It is not about being territorial, it’s about making sure the client gets accurate information and consistent answers. On a well-run project, the GC and designer have agreed on who fields which questions before those questions start coming in.