How to Vet a Custom Home Builder in Miami: A Buyer's Checklist

Selecting a general contractor or construction manager for a luxury custom home is one of the highest-stakes hiring decisions you will make. Miami's luxury construction market includes hundreds of contractors who claim expertise in high-end residential work, but a much smaller number who have the track record, financial stability, licensed team, and HVHZ technical depth to successfully deliver a $5M–$30M+ project. This 12-point checklist gives you a systematic framework for evaluation.

Why Vetting Matters More in Miami

Miami's luxury construction market has several characteristics that make rigorous vetting especially important:

• The HVHZ requires specific technical knowledge of hurricane-resistant construction, NOA products, and special inspection requirements that not all contractors have
• Miami's specialized subcontractor market (impact glazing, custom plaster, decorative concrete, custom millwork) requires established trade relationships that newer or less-experienced GCs may lack
• Permitting complexity across multiple jurisdictions (Miami-Dade, Miami Beach, Coral Gables, etc.) requires contractors with specific permit office relationships and experience
• The financial demands of carrying $5M–$30M in construction commitments require GCs with genuine financial depth, not just a contractors license

The 12-Point Checklist

1. Verify Florida Contractor License (CILB)

Every general contractor in Florida must hold a current, active license issued by the Florida Department of Business and Professional Regulation (DBPR) through the Construction Industry Licensing Board (CILB). Verify the license at myfloridalicense.com. Check for:

• License status (active, not suspended or revoked)
• License type (Certified General Contractor is the appropriate credential for luxury residential work)
• Disciplinary history (any complaints or disciplinary actions)
• License holder's name matches who you are contracting with

2. Verify Bonding and Insurance

Request certificates of insurance showing:

• General liability: Minimum $2M per occurrence / $4M aggregate for luxury projects; $5M+ on large estates
• Workers' compensation: Statutory Florida limits; verify coverage applies to all workers on site (subcontractors must also maintain their own workers' comp)
• Umbrella/excess liability: $5M–$10M umbrella recommended for large projects
• Performance and payment bond: Available on request and required by some sophisticated owners; bonds your project against contractor default

All insurance should name you (the owner) as additional insured. Verify directly with the insurance carrier, not just the certificate the contractor provides.

3. Review Completed Projects at Comparable Price Point

This is the single most important qualitative check. Ask for:

• 3–5 completed projects within the last 3 years at a comparable total project value (within 50% of your project size)
• Specific project addresses (so you can view from the street or request a client introduction)
• Photographs of completed work including interior finishes, not just exterior shots
• Total construction cost of each reference project (not just square footage — cost reflects quality level)

If a contractor claiming luxury residential expertise cannot provide 3 verifiable completed projects at comparable value within the last 3 years, they are not yet established in this market tier.

4. Check Owner References Directly

References provided by the contractor will always be favorable — the contractor selects who to offer. Nevertheless, speaking directly with prior clients yields significant information if you ask the right questions:

• "Did the project finish on schedule? If not, what caused the delay?"
• "What was the final cost versus the original contract price? What drove the difference?"
• "How were change orders handled — were they priced fairly and explained clearly?"
• "Did you encounter quality issues? How did the contractor respond?"
• "Would you hire this contractor again for a comparable project?"
• "Who was the day-to-day superintendent on your project, and how was their communication?"

5. Confirm HVHZ and NOA Specification Experience

Ask specific technical questions about HVHZ construction to assess the contractor's depth of knowledge:

• "Walk me through your process for specifying and verifying NOA-compliant products for our project."
• "How do you manage the secondary water barrier installation and inspection?"
• "Describe your hurricane clip schedule documentation and inspection process."
• "Have you worked with threshold inspectors? Describe your process for managing the threshold inspection program."

An experienced HVHZ contractor answers these questions with confidence and specific detail. Vague or uncertain answers signal insufficient technical depth for a Miami luxury project.

6. Evaluate the Superintendent Who Will Run Your Job

The most important person on a construction project is not the owner of the GC firm — it is the site superintendent. The superintendent runs the daily job, manages subcontractors, coordinates inspections, and is the on-site quality control presence. Ask:

• "Who will be the superintendent on our project specifically?"
• "How many other projects will this superintendent be running simultaneously?"
• "What is this superintendent's background and experience with comparable luxury projects?"
• "Can we meet this person before we execute the contract?"

Be very cautious of a GC who cannot name the specific superintendent or who indicates the superintendent will be shared across multiple projects of comparable complexity.

7. Assess Financial Stability

A general contractor's financial stability is essential — a GC in financial distress will cut corners, delay payments to subcontractors (who will then slow work or file liens), and ultimately may abandon the project. Ask for:

• The most recent fiscal year's financial statements (a privately held GC may be reluctant, but most sophisticated owners request this)
• Banking references (their primary commercial bank)
• Bonding capacity confirmation from their surety agent (bonding capacity is a proxy for financial creditworthiness)
• List of current active projects and their total value (to assess whether your project will get appropriate management attention)

8. Review Subcontractor Relationships

The GC's quality is heavily determined by the quality of their regular subcontractor team. Ask for the list of subcontractors they plan to use for key trades on your project (structure, MEP, windows, millwork, tile). Then research those subs:

• Do they have a track record in the luxury tier?
• Are their Florida licenses current?
• Have they worked with this GC on similar projects (established working relationship or new relationship)?

9. Evaluate Communication and Reporting Systems

A luxury project requires rigorous communication — weekly site meetings, regular schedule updates, formal payment applications with backup documentation, and prompt change-order reporting. Ask about:

• Their project management software (Procore, Buildertrend, or similar)
• Frequency and format of owner reports
• How change orders are identified, priced, and presented for approval before work proceeds
• How RFIs (requests for information to the architect) are tracked and responded to

10. Confirm Permit Experience in Your Specific Municipality

Permit processes differ significantly across Miami's municipalities. A GC with deep City of Miami permit office relationships may have never submitted a permit in Coral Gables, and vice versa. Ask specifically about their experience in your municipality — not just Miami generally.

11. Understand Their Contingency and Risk Management Approach

How a contractor manages risk and contingency tells you a great deal about their project management philosophy:

• "What contingency do you hold within your GMP for unforeseen conditions?"
• "What is your process when a subsurface condition is discovered that was not in the geotech report?"
• "How do you handle long-lead item delivery delays that threaten the critical path?"
• "What is your hurricane preparedness plan for open construction sites?"

12. Verify No Active Liens or Legal Disputes

Search for active liens, contractor complaints, or legal disputes involving the contractor through the Miami-Dade public records system and the Florida DBPR complaint database. A history of subcontractor liens on prior projects (indicating failure to pay subs), consumer complaints, or licensing actions is a serious red flag that should disqualify a contractor regardless of other positive attributes.

Red Flags to Watch For

• Inability to provide completed project references at comparable value
• Reluctance to share insurance certificates directly or to name you as additional insured
• Vague answers about who the superintendent will be
• A bid significantly lower than competitive bids (15%+ below the peer group — investigate scope, not celebrate)
• Pressure to execute quickly without time for full due diligence
• Requests for large upfront payments before substantial work is complete
• No experience with HVHZ-specific requirements
• No project management software or documented reporting system

The Final Decision Framework

After completing this 12-point evaluation for 3–5 finalists, score each contractor across the criteria and weight them by importance to your project. The lowest bidder is rarely the right choice in Miami luxury construction — the cost of a failed or troubled project relationship vastly exceeds any initial bid savings. Select the contractor who best combines:

• Demonstrated comparable project success
• Technical depth in HVHZ construction
• A superintendent who will be dedicated to your project
• Financial stability and bonding capacity
• Communication systems and transparency that match your expectations