A roof replacement estimate tells you more through its line items than its total. Two quotes for the same house can sit thousands apart because one prices a full tear-off, new underlayment, and replaced flashing, while the other leaves those out or folds them into “labor and materials.” Reading the document line by line is the fastest way to compare scopes of work instead of bottom-line numbers.
Local conditions shape what a good estimate should list. Metro Atlanta roofs face hot, humid summers, afternoon thunderstorms with straight-line winds, occasional hail, and falling limbs from the mature pines and oaks common in Gwinnett neighborhoods. Many homes built in the 1990s and 2000s are now on a second roof or well past their first, which raises the odds of finding soft decking once the old shingles come off. Heat and moisture trapped in an attic also make the ventilation line worth reading closely.
A dependable estimate follows the order the work happens: removal, deck inspection, waterproofing layers, flashing, ventilation, shingles, cleanup, and paperwork. If a document jumps from “remove old roof” straight to “install new shingles,” the steps between are either bundled or missing, and the only way to find out which is to ask.
For homeowners who want to see an itemized scope in practice, RJS Roofing & Construction handles roofing replacement as well as wind and hail damage, including guidance through the insurance claim process. The company has served greater Atlanta from Dacula since 2010 and is a GAF factory-certified contractor. Its team can walk the roof with you and your adjuster so the scope on paper matches what is on the roof. If you are comparing bids, request a written estimate and ask for each line below to be spelled out.
The estimate, line by line. Use this table as a checklist against any quote.
| Estimate line item | What it covers | What to check |
|---|---|---|
| Tear-off | Removing old shingles, underlayment, and nails down to the deck | Number of layers removed; full tear-off stated, not a layover |
| Decking repair allowance | A set provision for replacing rotted or damaged sheathing found after tear-off | Units covered (sheets or linear feet), rate for extra, credit back if unused |
| Underlayment | Water-resistant layer over the deck, plus self-adhering membrane at valleys and penetrations | Product type named; where the membrane goes |
| Flashing and drip edge | Metal at walls, valleys, chimneys, pipes, and eaves | “Replace” versus “reuse”; new pipe boots |
| Ventilation | Intake and exhaust, such as soffit vents and ridge vent | Both listed, and sized to the attic |
| Disposal and cleanup | Hauling debris, dumpster, magnet sweep for nails | Included or extra; protection for landscaping |
| Permits | Local permit and any required inspection | Who pulls it, who pays, proof of final sign-off |
| Warranty terms | Manufacturer material warranty and contractor workmanship warranty | Length, what voids it, written and transferable or not |
Reading the allowance. Decking is the line most likely to change after you sign. Sheathing cannot be judged until the old roof is off, so an honest estimate uses an allowance instead of a guess. A reasonable one states the price for any additional replacement and explains how damaged sections will be documented, ideally with photos. A missing allowance line usually means one of two things: the contractor assumes no repairs, or any repair becomes an open-ended change order. Ask which.
Ventilation and flashing. These two lines cause the most quiet failures. Shingle manufacturers often tie their warranties to adequate attic ventilation, so an estimate that lists only a ridge vent with no mention of intake deserves a question. On flashing, “reuse existing” on a new roof is a common source of later leaks, especially around chimneys and wall junctions.
Storm-damage estimates. A replacement quote is a contractor’s proposal for new work. A storm-damage estimate is a scope tied to a claim, listing damaged slopes and affected materials, and often gutters, soffit, fascia, or siding hit by the same event. The two can differ in scope, and what a policy pays depends on its terms, so treat neither as a promise of an outcome. Georgia’s Office of the Commissioner of Insurance and Safety Fire advises homeowners to photograph all damage, stop at a temporary tarp, and avoid signing any contractor document until they have spoken to their insurer directly. The Georgia Attorney General’s Consumer Ed column adds that roofers in the state are not allowed to pay a customer’s insurance deductible. It also lists written manufacturer warranties and written labor warranties among what a legitimate roofer should provide. A line that offers to absorb or waive a deductible is a reason to stop and call your insurer.
Vague lines worth a follow-up. Watch for “misc. materials,” one lump sum covering labor and materials, no shingle product named, no mention of flashing or permits, and a payment schedule that front-loads most of the money before work starts. Each is a prompt for a question, not proof of bad intent. The cleanest test is to give every bidder the same checklist and ask for the answers in writing.
