Sounds Too Good to Be True?
We all love a good deal, but if a contractor promises champagne renovations on a canned-beer budget, pause. Bad contractors bait with low bids to reel you in, then hike up the price once work starts.
Always ask for a detailed quote, not a vague estimate. If they dodge specifics like labor hours, material brands, or a work timeline? Red flag. A good contractor knows what it’ll take and tells you upfront.
No License, No Deal
A legit contractor should be fully licensed and insured, period. If they say things like “I don’t need a license for this kind of work” or “I’ve been doing this for years, never had a problem,” run.
Licensing isn’t just red tape, it’s your safety net. Ask for proof and then double-check it with your local licensing board. A solid pro won’t blink when asked for credentials. It’s the bare minimum.
Big Money Upfront
Let me be clear: no reputable contractor asks for more than 10–30% of the total cost upfront. If someone’s asking for half or worse, full payment before even swinging a hammer, they’re either in trouble financially or planning to disappear.
You’re not financing their vacation. Set up a payment schedule tied to milestones, like demo done, plumbing rough-in, or tile installed. That way, you pay for progress, not promises.
Avoid Written Contracts
Verbal agreements are not protection. If a contractor insists everything will be “fine” without a written contract, that’s your cue to walk.
A proper contract should include the scope of work, payment terms, materials, start and end dates, and what happens if something goes wrong. It protects both sides. The shady ones avoid contracts because they plan to ghost you or charge you double for things they “forgot” to mention.
Suspicious Online Reviews
A contractor with zero online footprint in 2025? That’s like finding a unicorn. Sure, not everyone lives online, but you should be able to dig up something.
If the only reviews you find are vague and too perfect, “Best contractor ever” with no detail, be wary. Read both good and bad reviews. Look for patterns, like did multiple people complain about delays or surprise costs? That’s not just a bad day. That’s business as usual for them.
Pressure to Decide Now
Quality pros respect your process. If someone’s pushing hard for a same-day decision, throwing around phrases like “today only” or “I’m booking fast,” take a breath.
High-pressure tactics are for sketchy used car lots, not home renovation. You deserve time to check references, compare bids, and sleep on it. Don’t let them rush you into a contract you’ll regret.
Vague or Too Fast Timeline
Renovations take time. If a contractor gives you a timeline that sounds like magic, they’re either lying or cutting corners. On the flip side, if they can’t give you a clear start date or keep dodging the question, that’s also a concern.
Good contractors know how to manage a schedule. They tell you what to expect and, more importantly, when to expect it.
No Questions Asked?
If a contractor doesn’t ask you anything, no questions about materials, preferences, function, or long-term plans, guess what? They’re not listening. And if they’re not listening now, they won’t care later when your shower door doesn’t close or your tile’s laid wrong.
A good pro wants your input. They know every detail matters. The bad ones? They’re already imagining a quick paycheck, not a great result.
Bringing “New Crew” Every Day
You start your project, and suddenly there’s a rotating cast of strangers in your home. That’s a problem. While subcontracting is normal, good contractors introduce their team, keep consistent workers, and communicate changes.
Ask who will actually be doing the work. If the answer is “whoever’s available,” they’re not running a tight ship, and you’ll feel the disorganization in every crooked cabinet and uneven grout line.
Bad Gut Feeling
There’s something about instincts that don’t lie. If someone gives you the ick during your first meeting, maybe they dodge questions, over-talk you, or seem weirdly defensive, pay attention.
You’re inviting this person into your home, sometimes for weeks or months. If the energy’s off now, it won’t magically get better once the walls are open. Trust your gut, it’s there for a reason.
Weirdly Sparse or Generic Portfolio
A real pro should be proud to show off their past work. Whether it’s a sleek website, Instagram page, or printed portfolio, you should see real photos, not just generic Pinterest images.
Ask for before-and-afters. If they only have “sample” shots or duck the request entirely, that’s a no-go. You need proof they can do your style and quality, not just sweet talk their way into a gig.
Skipping Permits
This is a biggie. If a contractor tells you permits aren’t necessary or suggests you “pull your own” to save time or money, run. Permits exist for a reason: safety and compliance.
A contractor avoiding them either doesn’t know the code or plans to cut corners. And if something goes wrong? You’re on the hook, and the city could shut your project down or, worse, fine you. You want someone who plays by the rules.
No References
References are non-negotiable. A pro who stands behind their work is happy to connect you with past clients. If someone balks or says, “My clients don’t like to be bothered,” it’s because they know what those clients would say.
When you do call references, ask specific questions: Did they show up on time? Did they stick to the budget? Would you hire them again? Don’t settle for a list, get the story.
Cutting Corners
You won’t always notice a bad paint job right away. But you’ll sure feel it when plumbing leaks behind a brand-new wall.
Shady contractors cut corners in the areas homeowners can’t easily check: framing, insulation, wiring. That’s why you need to ask what’s behind the finish. A good contractor walks you through it and isn’t afraid to explain how the sausage gets made.
No Process or Plan
Ask a contractor how they handle a typical job, and listen closely. If their answer is vague, then run. A pro has a system: timelines, crew schedules, delivery plans, even Plan B for weather delays.
A lack of process means chaos is coming. You’ll be left chasing updates and wondering when (or if) they’ll show up. Ask for their workflow. If they don’t have one? Keep looking.
Dismiss Your Ideas
Watch out for the contractor who acts like you’re just a walking wallet. If you share a design vision and they immediately shut it down without explanation or alternatives, that’s a red flag. Sure, sometimes your idea might not be feasible, but a good pro explains why and suggests a better route.
There are some things you should not say to your interior designer, but beyond that, you should share your ideas and demands clearly upfront with your contractor and designer.
Spotty Communication from the Start
If they’re already ghosting you during the bidding process, imagine how they’ll be once they’ve got your deposit. Delayed responses, missed calls, and vague texts? That’s not a communication style, it’s a preview.
A good contractor updates you regularly, replies quickly, and keeps you in the loop without being chased. Worried about hiring the right pro and how to communicate with them? A guide to team up with contractors & designers, packed with practical tips, can help you build a dream team without the drama.
Ever spotted a red flag too late or dodged a bad contractor just in time? Drop your stories in the comments below.
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This slideshow was made with AI assistance and human editing.
