Your build-out projects live or die by your subcontractor team—hiring the wrong electrician or drywall crew will eat your margins and tank your schedule. Getting this right means vetting partners early, locking down pricing upfront, and building relationships that survive scope creep. Here's how to hire subcontractors who actually deliver on tenant improvement work.
Know What You're Hiring For
Tenant improvement projects demand specialists. A general drywall crew won't cut it if you need fire-rated assembly work or coordination with the building's existing systems. Define your scope in writing before you talk to anyone. Break out the major trades—mechanical, electrical, plumbing (MEP), framing, drywall, flooring, paint, and any specialized finishes—and get clear on who does what.
Most build-outs need 8–12 weeks for interior demolition and reconstruction, depending on complexity. Know this timeline before you phone a sub; it tells them whether the project is tight or comfortable. A sub who's desperate for work might commit to an impossible schedule and bail halfway through.
Build a Pre-Vetted List
Don't hire from Craigslist or cold calls. Start asking your current subs, general contractors, and past clients for referrals. In the Tennessee improvement market, for example, a trusted framing sub often knows three reliable MEP contractors. Request at least three references per trade—and actually call them.
Ask references:
- Did the sub show up on time and complete work on schedule?
- Were change orders reasonable, or did pricing shift mid-project?
- How did they handle rework or disputes?
- Would you hire them again for the same price?
A reference who hesitates is telling you something. Trust that gut feeling.
Get Competitive Bids, But Watch for Lowballs
Request detailed quotes from three subs per major trade. Pricing varies widely: interior demolition typically runs $1–$3 per square foot (depending on building systems to disconnect), framing $2–$5 per square foot, drywall finishing $1.50–$3, and painting $0.75–$2. Electrical and plumbing depend heavily on code and infrastructure.
If a bid comes in 20% below the others, dig in. The sub may be underestimating scope, planning to cut corners, or hoping for change orders to recover margin. Ask them to walk you through their estimate. How many crew days? Material waste factor? Site conditions? A legit sub can justify their number.
Lock Down Contracts with Clear Terms
A handshake agreement on a $15,000 drywall job will wreck you. Use a written subcontract that specifies:
- Scope of work (reference drawings, cut sheets, specs)
- Start and completion dates
- Daily/weekly crew size
- Payment schedule (don't pay upfront; 50% at start, 50% on completion is standard)
- Change order process (get it in writing—no verbal agreements)
- Insurance requirements (general liability, workers' comp)
- Lien waivers before final payment
Most subs expect NET 30 payment terms. Negotiate if your cash flow is tight, but understand that asking for NET 60 may cost you 5–10% in higher bids.
Monitor Progress and Communication
A weekly site meeting catches problems early. Bring your subs together, walk the space, and confirm next week's schedule. If the HVAC rough-in is running three days behind, the drywall team needs to know now, not when they show up Monday and find walls not ready.
Use a simple shared schedule (Google Sheets works) that shows when each trade is on-site. Conflicts destroy timelines. Electrical and mechanical need access before drywall; paint comes last. A sub who doesn't respect sequence wastes everyone's time.
Grow Your Network
The best subcontractor relationships are repeating. If a crew proves reliable on a 3,000-square-foot fit-out, you'll bring them back for the next one. They'll prioritize your calls because you're steady work. Building this reputation also helps when you're listing your services—platforms like Mercoly let you showcase your track record and win leads from property managers and developers looking for established teams with proven subcontractor relationships.
Frequently Asked Questions
Q: What should I pay upfront to a subcontractor, and when do I release final payment? Standard practice is 0–10% deposit to confirm commitment, 50% on start of work, 40% on completion, and 10% held for 30 days after lien waiver deadline to protect against mechanic's liens.
Q: How do I handle a sub who's running behind schedule on a time-sensitive lease? Address it immediately in writing; get a revised timeline in writing, assign a crew lead as your daily contact, and establish daily standup calls if delays continue. If the delay is their fault, you're entitled to recover costs from their contract penalty clause (build this in upfront).
Q: Should I use the same MEP contractor for all my projects, or get competitive bids every time? Loyalty matters—a repeat contractor knows your standards and builds efficiency into pricing—but get competitive bids every 2–3 years to confirm you're not overpaying.
Start vetting subs today and build your trusted roster on Mercoly to attract more build-out work.