How to Read a Roofing Estimate, Line by Line | Hommy
How to Read a Roofing Estimate, Line by Line
The cheap bid is usually not a cheaper crew, it is a shorter scope. Here is every line item that belongs on a roofing estimate and the ones quietly left off to move the number.
Hommy
July 17, 2026 · 13 min read
A roofing bid that comes in 30 percent under the others is rarely a cheaper crew. It is almost always a shorter scope. The savings are in the lines that are not there: the starter strip, the ice barrier, the new pipe boots, the flashing that got reused instead of replaced.
Here is the standard order of a real estimate, what each line should say, and what is commonly left out.
The one test that catches most bad estimates
Every line should be specific enough that a different contractor could build the identical roof from the document alone.
If a line says "flashing as needed" or "architectural shingles" with no brand, that test fails. Undefined scope is priced at zero today and billed later, and vague product specs let a contractor substitute down after you sign.
The line items, in the order they should appear
A well-written estimate follows the build sequence.
Tear-off and disposal. Should state how many layers are coming off, and include the dumpster, haul-away, and dump fees. Layer count drives labor and weight, so "tear off existing roof" with no layer count cannot be priced accurately by anyone, including the contractor.
Deck inspection and replacement. Priced as a contingency with a unit rate, because nobody can see the deck until the old roof is off. See the next section.
Underlayment. Should name the actual product. Most crews use synthetic now even when the estimate still says felt.
Ice barrier. Self-adhered membrane at eaves, valleys, and penetrations. Building code requires it in areas with a history of ice damming, with the eave coverage measured to a point inside the exterior wall line.
Starter strip. Purpose-made starter at the eaves, ideally at the rakes too. It provides the sealant bond for the first course. One of the most commonly omitted items on a cheap bid.
Field shingles. Brand, product line, and color. "Architectural shingles" is not a specification.
Hip and ridge cap. Manufactured cap, not field shingles cut down. Cut-up shingles are a downgrade and can disqualify enhanced warranties.
Valley treatment. Should say which method: closed-cut, woven, or open metal. They cost different amounts, so two bids that do not name the method are not comparable.
Flashing. The highest-risk category. Should enumerate step flashing, counterflashing, kick-out flashing, chimney flashing, and pipe boots individually.
Ventilation. Intake and exhaust, with enough detail to tell whether the finished roof meets code net free area.
Drip edge. Code requires it at eaves and rakes, with specified overlap and fastener spacing. It is not an upgrade, and a bid that treats it as optional is telling on itself.
Cleanup. Debris removal plus a magnetic sweep of the grounds and driveway.
Permit. Pulled by the contractor, in the contractor name, with the fee stated.
Warranty registration. Who registers it, which warranty, and by when.
Code references: IRC on ice barriers and IRC on drip edge. Adoption varies locally, and Florida uses its own building code, so check with your building department. If any term here is unfamiliar, see our roofing glossary.
How the deck contingency should be written
Deck condition is genuinely unknown until tear-off, so a fixed price for deck replacement is either padded or a placeholder. The correct treatment is a unit rate.
A good line reads something like: replace deteriorated sheathing at a stated price per sheet, billed only for sheets actually replaced, documented by photo.
Typical market rates run somewhere around 70 to 100 dollars per installed 4 by 8 sheet, though this varies by region and by material. Those figures come from cost aggregators rather than any authoritative body, so treat them as a sanity check, not a benchmark.
Two abuse patterns to watch for:
A low headline price with no stated deck rate, which arrives later as a large change order you cannot argue with because you never agreed a number.
An allowance like "includes 10 sheets" that is never credited back when only two get used. Insist the contract says unused allowance is credited to you.
Ask for photos before the sheets go on
Rotten decking is real and common. So is being billed for sheets that were fine. A contractor who photographs each replaced section before covering it is not being difficult, they are protecting both of you.
Deposits and payment schedules
Industry convention is a deposit somewhere in the 10 to 30 percent range, progress payments tied to milestones on bigger jobs, and a meaningful final payment on completion. More than 30 percent up front deserves a hard question. Full payment before work starts is a hard stop.
The legal picture varies more than people think, and one popular claim is simply false:
California caps the down payment on a home improvement contract at 1,000 dollars or 10 percent of the contract price, whichever is less. This is the rule people remember.
Florida has no general deposit cap. You will see it claimed online, and it is wrong. What Florida does have is a trigger: taking more than 10 percent up front on residential work obligates the contractor to apply for permits within 30 days and start work within 90 days of permits being issued, absent just cause. Failure carries criminal penalties graduated by the amount taken.
Texas has no deposit cap either. Texas does require a contractor on a written contract to improve a residential homestead over 5,000 dollars to hold trust funds in a designated construction account, and the state attorney general advises homeowners to ask for written verification that the account exists.
Texas has no state roofing license, so nobody is checking credentials for you. It does, however, require specific contract language you can check yourself.
Any contract of 1,000 dollars or more where the seller reasonably expects to be paid wholly or partly from property insurance proceeds must carry a deductible notice in at least 12-point bold type, stating that the insured must pay their deductible and that it is illegal for the seller to help them avoid it. A storm-damage roofing contract in Texas without that paragraph is not compliant. That is a concrete thing to look for before you sign.
A roofing contract must contain a notice that the contractor may not offer rebates, gifts, or deductible waivers in exchange for a roof inspection or claim, may not take referral fees for insurance services, and may not adjust a claim without a public adjuster license. If that notice is missing, you may void the contract within 10 days of signing.
Residential contracts over 2,500 dollars must carry the Homeowners Construction Recovery Fund notice.
Direct owner contracts over 2,500 dollars on one to four family residential property must carry the construction lien law warning in capitalized bold type.
The license number must appear on advertising and jobsite signage.
Statutes change and their application depends on your specific contract and situation. This is general information, not legal advice. Read the current statute or talk to an attorney before relying on any of it.
Two phrases that signal a real problem
"We will waive your deductible"
This is a crime in both Texas and Florida, and the contractor is the one committing it.
In Texas it is an offense for a seller to advertise or promise to pay, waive, absorb, or offset an insured deductible without the insurer consent, or to knowingly assist a homeowner in avoiding it. The penalty is a Class B misdemeanor. In Florida, a contractor who knowingly pays, waives, or rebates all or part of an insurance deductible with intent to injure, defraud, or deceive commits a third-degree felony.
Note who carries the risk. The contractor faces the charge, but you end up with a roof installed by someone willing to commit insurance fraud, and a claim that may unravel. Variants to watch for include "no cost to you" and "you only pay your deductible" contingency contracts, which are often the same thing wearing a nicer suit.
This one is legal or illegal depending entirely on what it means.
Meeting the adjuster on the roof, pointing out damage, and providing documentation and photos is fine and genuinely helpful. Negotiating or adjusting the claim on your behalf is acting as a public adjuster, and in Texas a contractor may not do that for any property where they are providing or may provide contracting services, regardless of whether they hold a license or have a power of attorney from you. Florida has a similar prohibition.
The tell is contract language granting the contractor authority to negotiate with your carrier, or a power of attorney. Texas law specifically closes that workaround.
“A bid 30 percent under the rest is not a discount. It is a different job, and you will pay the difference later in change orders or in leaks.”
The Hommy Team
Documents to demand before you pay anything
License number, verified with the issuing authority rather than read off the truck. In Florida that is DBPR. In Texas there is no state license, so verify city registration instead.
Certificate of insurance sent directly from the agent, not forwarded as a PDF by the contractor. Check that it covers general liability and workers compensation, that the dates are current, and that the described operations actually say roofing. Some carry cheaper policies that exclude elevated work.
Lien waivers, including an unconditional final waiver on final payment and waivers from subcontractors and suppliers. Without them, a homeowner who paid in full can still be liened by an unpaid supplier.
Manufacturer warranty registration confirmation, not a promise to register. Enhanced warranties typically require the contractor to register within a set window after completion.
The permit number, pulled in the contractor name. "Homeowner pulls the permit" shifts code liability onto you and often means the contractor cannot pull one.
A certificate of insurance is weaker than it looks
The standard certificate says on its face that it is issued as a matter of information only and confers no rights on the certificate holder. Being named on one does not make you covered. Real protection comes from an additional insured endorsement, which is a separate document. Ask for it by name.
When you have three bids in front of you, do not start with the totals. Line them up item by item and find the differences in scope first. Then ask each contractor to price the missing items.
Very often the cheap bid stops being cheap once it includes the same work. Sometimes it stays cheap, and now you know it is genuinely a better price rather than a smaller job. Either way you learned something the totals could not tell you.
