How to Read a Roofing Estimate (and Spot Hidden Costs)

You called three roofers, you have three estimates in your hand, and the prices are wildly different. One is $14,500, one is $18,800, one is $24,000. Same roof, same house. What’s actually different between them, and how do you know which is honest?

This is the post that walks line-by-line through a typical Miami roofing estimate, what each line means, and where the hidden costs hide.

What Should Always Be on the Estimate

A complete estimate has every one of these line items. If anything is missing, ask before you sign.

• Tear-off and disposal. How many layers, dump fees, magnetic nail sweep at the end
• Decking inspection and replacement allowance. Usually a per-sheet rate ($80-$120) and a number of sheets included; replacement above that is extra
• Underlayment type. Standard 30-lb felt, synthetic, or peel-and-stick. In HVHZ counties (Miami-Dade, Broward) peel-and-stick is required for full code compliance
• Drip edge and starter strip. Material and color
• Flashings. Step flashing, valley flashing, chimney flashing, vent flashing — material and gauge specified
• Roofing material. Brand, model, color, warranty class
• Ridge cap and ventilation. Type of vent (ridge, off-ridge, soffit), how much ventilation is being added
• Permit and inspection fees. Itemized, not buried in “labor”
• Workmanship warranty. Years and what it covers
• Manufacturer warranty. Years and what it covers (most are pro-rated after year 10)
• Cleanup and final inspection. Including driveway protection, magnetic sweep, photo documentation

What’s Often Missing (and Should Be Added)

The cheapest estimates often don’t include these. They become “change orders” once work starts, and that’s how a $14,500 quote becomes a $20,000 bill.

• Skylight, solar, satellite, lightning rod removal/reinstall. If you have any of these, the line should appear
• Pipe boot replacement. The rubber boots around plumbing vents fail every 10-15 years. Replace during a re-roof — this should be included
• Soffit and fascia repair. Often water-damaged on older homes. Replacement allowance should be quoted
• Chimney cricket. The diverter behind a chimney that prevents water pooling. Often missing on older homes — add during re-roof
• Code-required upgrades. Florida 25% rule means full code compliance even on partial replacements. HVHZ adds specific code items beyond standard FBC

The Three Estimate Comparison

When you have three estimates, line them up side-by-side and look for these tells:

Tell #1: Underlayment

If two quotes specify peel-and-stick and one specifies “synthetic” or “felt” without further detail, that’s a $1,500-$3,000 difference on a typical Miami home — and the cheaper option doesn’t meet HVHZ code in Miami-Dade or Broward.

Tell #2: Decking allowance

Every estimate has a decking allowance. If quote A says “up to 5 sheets included” and quote B says “up to 15 sheets included,” quote B is more honest about how much decking actually fails on Miami roofs. Quote A will hit you with change orders.

Tell #3: Permit clarity

Permits in Miami-Dade run $300-$1,500. If a quote doesn’t itemize the permit, ask. If the answer is “we’ll add it later,” you’re being set up for a change order.

Tell #4: Workmanship warranty

A 1-year workmanship warranty is meaningless. 5-year is decent. 10-year is what serious roofers offer because they expect to be in business that long. If a quote has a 1-year warranty and is significantly cheaper, the math is telling you something.

Tell #5: Manufacturer certification

For shingle roofs, GAF Master Elite or CertainTeed Select ShingleMaster certification means the manufacturer has audited the contractor. Certified contractors can offer enhanced manufacturer warranties (50-year non-prorated on some products). Non-certified contractors cannot offer those warranties even if they install the same product.

Red Flags That Mean Walk Away

• The quote isn’t on letterhead
• No license number on the document
• The contractor’s address is a P.O. box or out of state
• “Cash only” pricing or aggressive “today only” discounts
• Refusal to provide proof of liability and workers’ comp insurance
• The quote requires a deposit greater than 10% (Florida law caps roofing deposits)
• The estimate is significantly cheaper than competitors with no clear explanation

The Right Question to Ask

The single most useful question to ask each contractor: “What’s most likely to come up as a change order on this job?”

An honest contractor will tell you: extra decking, soffit damage we find under the eaves, pipe boots, etc. They’ll give you a likely range. A contractor who says “nothing, this price is final” is either lying or hasn’t done enough work to know.

Need a Trusted Roofing Team in Miami?

BGI Roofing writes itemized estimates with no buried fees. If you have estimates from other contractors and want a second opinion, send them over — we’ll review them with you for free. Call (305) 894-6575.