Tenant improvement bids can swing wildly depending on scope, materials, and contractor overhead—comparing them properly means knowing what's actually included. A vague quote at $50,000 might exclude MEP rough-in work, while a detailed one at $55,000 accounts for every detail. Learning how to read a TI bid saves thousands and prevents mid-project surprises.
Understand What's in Scope (and What Isn't)
The single biggest mistake is assuming all bids cover the same work. One contractor might quote demolition, framing, and drywall; another stops at demolition and hands off. Before comparing dollar amounts, get scope statements in writing.
Ask each bidder to itemize:
- Demolition and hauling
- Framing and structural work
- Mechanical, electrical, and plumbing (MEP) rough-in and finish
- HVAC scope (modification vs. replacement)
- Flooring, wall finishes, and paint
- Ceiling systems and lighting
- Door and hardware installation
- Permits and compliance inspections
Missing one line item—like "MEP closeout inspections" or "asbestos abatement"—can add $10,000+ and blow your timeline by weeks.
Check Material Specifications and Grade
Two bids with identical labor descriptions can differ wildly based on what gets installed. A $30,000 flooring line item might mean mid-grade vinyl composite tile (VCT); another might specify polished concrete with epoxy. Flooring alone typically runs $8–$15 per square foot for basic finishes and $25–$50+ for premium materials.
Ask bidders to specify:
- Exact product names and manufacturers for flooring, paint, fixtures
- Grade or rating (commercial-grade vs. residential, fire ratings)
- Warranty terms
- Lead time (critical items like doors and fixtures can delay projects 4–8 weeks)
If a bid seems low, it often reflects lower-grade materials or longer timelines waiting for cheaper stock items.
Verify Labor Rates and Timeline
Contractor hourly rates vary by market, experience, and union vs. non-union status. In most U.S. metros, skilled TI labor runs $55–$85 per hour for carpenters, $75–$120 for electricians and plumbers. A 10,000 sq ft office fit-out with modest finishes typically needs 800–1,500 labor hours, putting pure labor between $45,000 and $127,500.
Compare bids on:
- Duration: How long will construction take? A 2-month project is riskier than 4-month if deadlines slip; longer duration spreads overhead costs.
- Crew size: Bigger crews cost more daily but finish faster; smaller crews minimize disruption but extend timelines.
- Phase sequencing: Can work happen in phases if you need to occupy part of the space sooner?
Request a preliminary schedule. If two bids quote the same work but different timelines, the faster one likely front-loads labor costs while the slower one spreads them—both are valid, but impacts your business differently.
Watch for Missing Contingency
Reputable TI contractors include contingency—typically 5–15% depending on project condition and age. Older buildings with concealed mechanical systems carry higher contingency risk. A bidder quoting zero contingency either misunderstands the scope or plans to change-order you later.
In a $100,000 project, a 10% contingency ($10,000) is standard. If two bids are $95,000 and $105,000 and the second includes contingency while the first doesn't, the "cheaper" option is actually a trap.
Review Insurance and Licensing
Don't compare apples to oranges. Verify each bidder carries:
- General liability insurance ($1M minimum)
- Workers' compensation (if they have employees)
- Current contractor license for your state
- Bonding (especially on projects over $100,000)
A low bid from an uninsured contractor isn't a deal—it's a liability. If something goes wrong, you're liable.
Request References and Site Visits
Call references and ask specifically about cost overruns, timeline adherence, and punch-list completeness. If possible, visit an active project. How clean is the site? Do workers show up on schedule? Are materials organized or scattered?
Frequently Asked Questions
Q: How much detail should be in a TI bid before I take it seriously? A legitimate bid should run 3–5 pages with itemized line items, material specs, and assumptions listed. One-page quotes are estimates at best; they're not suitable for a real project comparison.
Q: What's a red flag when comparing tenant improvement bids? Bids that are significantly lower than others (15%+ below market), have vague line items like "misc. work," or exclude MEP closeout and permitting are warning signs of incomplete scope or low-quality contractors.
Q: Should I always hire the lowest bidder? No. The lowest bid often reflects rushed timelines, lower materials, or gaps in scope. Mid-range bids from licensed, insured contractors with solid references are typically the best value—Mercoly helps you compare and find trusted tenant improvement providers so you can evaluate quality alongside price.
Get multiple detailed quotes and compare them systematically rather than price-shopping alone.