Roofing quotes for the same house can be thousands of dollars apart, and the totals alone rarely explain why. One quote may include tearing off two layers and replacing rotted decking. Another may assume one layer and say nothing about the wood underneath. Until the line items match, you are not comparing like with like. This guide explains what drives the differences, which lines to look for, how to read cost ranges from third-party sources, and how to compare quotes side by side. The figures here are national ranges from other sources, clearly labelled, and never our own prices.
Roofing Quotes Differ for Real Reasons
Roofing quotes differ mainly because they price different scopes of work. The number of layers torn off, how much decking is replaced, the underlayment and flashing specified, the roof’s pitch and access, and labor all change the total. Two quotes only become comparable once those line items describe the same job.
A homeowner who sees two quotes several thousand dollars apart naturally suspects one roofer is overcharging. Sometimes that is true. More often, the two roofers have priced different jobs. One may plan to replace all the flashing and add ventilation, while the other plans to reuse old flashing and leave the vents alone.
The first step in any comparison is to ask each roofer for a written, itemised scope. The Federal Trade Commission’s consumer guidance says a written estimate “should include a description of the work to be done, materials, completion date, and the price” (FTC, How To Avoid a Home Improvement Scam). A quote that gives only a total is not something you can compare.
Scope Hides Behind the Total
The scope of work is the list of what the roofer will actually do, and it is where most price gaps come from. A full scope names the tear-off, decking, underlayment, flashing, ventilation, drip edge, cleanup and disposal. When one quote lists all of these and another lists two, the cheaper total may simply be doing less.
A useful checklist of scope items to find on every quote:
| Scope item | What to look for on the quote |
|---|---|
| Tear-off | Number of existing layers to remove |
| Decking | Included sheets, or a per-sheet price for rotted wood |
| Underlayment | Product type (felt, synthetic, self-adhered) and where it goes |
| Flashing | New or reused at chimneys, walls and valleys |
| Drip edge | Included at eaves and rakes |
| Ventilation | Ridge, soffit or other vents added or replaced |
| Shingles or panels | Brand line, type and colour |
| Cleanup and disposal | Dumpster, magnet sweep for nails, haul-away |
| Permit | Who pulls it, and whether the fee is included |
If an item is missing, ask whether it is included. A verbal “yes” should be added to the written scope.
Tear-Off and Layer Count
How many layers come off the roof changes both the labor and the disposal cost. A house with two old layers costs more to strip than one with a single layer, and the building code limits putting new shingles over existing ones. If two quotes assume a different layer count, their totals will not match.
Section R908.3.1.1 of the Georgia edition of the 2018 International Residential Code says a roof recover is not permitted where “two or more applications of roof coverings” are present, or where the existing roof is “water-soaked or deteriorated” (UpCodes, Georgia IRC 2018 roof assemblies). So a quote that lays new shingles over two existing layers is not one to accept.
Fixr’s roof replacement guide puts removal at around “$50 per square” on average, rising toward “$150 per square” for heavier materials, where a square is 100 square feet (Fixr, roof replacement cost). That is a third-party national range, not our pricing.
A layer count can be wrong in either direction. A roofer who only looks from the ground may miss a second layer that is found once work starts. Ask each roofer how they confirmed the layer count, and how the contract handles a surprise.
Decking Allowances and Change Orders
Rotted decking is the most common reason a roofing price changes after work starts, because it is hidden until the old shingles come off. A good quote handles this in advance with a per-sheet price or a stated allowance. A quote that ignores decking is not cheaper; it simply moves that cost to a later conversation.
Fixr lists decking replacement at $2 to $8 per square foot nationally (Fixr, roof replacement cost). Some roofers include a number of sheets in the base price. Others price every sheet separately. Either approach is fine if it is written down before work begins.
A legitimate change order looks like this: the roofer shows you photos of the rotted area, counts the sheets, and applies the per-sheet price already in your contract. A change order that arrives with no photos and a new price you never agreed to deserves pushback. Our guide to decking rot and mid-job change orders covers this in more depth.
Materials and Underlayment Lines
Material choices change the total more than many homeowners expect. Shingle lines differ in weight and wind rating, metal costs more than asphalt, and the underlayment, flashing and vents under the surface all carry their own price. Two quotes using different materials are pricing different roofs, even if the colour matches.
Fixr’s national figures for a 1,700 square foot home show how much material drives price (Fixr, roof replacement cost):
| Material | Fixr national range, 1,700 sq ft home |
|---|---|
| Asphalt shingles | $6,000 to $10,000 |
| Metal | $14,000 to $38,000 |
| Slate | $20,000 to $60,000 |
Fixr also lists ice and water shield at roughly $0.50 per square foot. These are third-party national ranges, not our prices.
Ask each roofer to name the exact shingle line and underlayment product. A quote that says “architectural shingles” and “underlayment” without naming either leaves room for a cheaper product to arrive on the truck.
Labor, Pitch and Access
Labor is often the largest single part of a roofing quote, and it rises with the roof’s pitch, height and complexity. Fixr says labor accounts for 40% to 60% of total cost. A steep roof with many valleys, dormers and penetrations takes longer and needs more safety equipment than a simple low ranch roof.
Factors that raise labor:
- steep pitch that needs roof jacks or harness systems
- two or more storeys
- many valleys, dormers, skylights or chimneys
- limited access for a dumpster or material delivery
- tear-off of several layers
These factors explain why a neighbour’s price may not match yours even with the same shingle. Fixr’s labor figure comes from its roof replacement cost guide, a national source rather than a Columbus one.
National Cost Ranges for Context
Third-party cost guides give national context, not a price for your home. Fixr’s national average for a roof replacement is $10,000, with a typical range of $7,500 to $14,000 and about $4.75 per square foot on average. Use these to sense-check quotes, never as a price you are owed.
Fixr’s per-square-foot range runs from $3.75 to $11, updated February 2026 (Fixr, roof replacement cost). The spread is wide because material, layers, decking and pitch vary so much.
If every total is more than you can manage right now, our guide to realistic options when a new roof is out of budget covers repairs, phasing and financing questions. Whichever source you use, compare the line items in your quotes rather than holding a roofer to a national average.
If a quote sits far above every range you find, ask why. There may be a good reason, such as a steep roof or two layers. If a quote sits far below, ask what is missing from the scope.
Deposits, Payment Schedules and Lien Waivers
How a quote asks to be paid matters as much as the total. The FTC advises against paying the full amount up front and notes that some states limit down payments. A written payment schedule tied to stages of work, and lien waivers from suppliers and subcontractors, protect you if something goes wrong.
The FTC’s guidance says: “Don’t pay the full amount for the project up front.” It also lists asking you “to pay for everything up front or only accept cash” as a sign of a scam (FTC, How To Avoid a Home Improvement Scam). The FTC suggests contacting your state or local consumer agency about down-payment rules.
A sensible payment structure ties payments to milestones, such as material delivery and completion. Ask for a lien waiver from the roofer, and from major suppliers, when you make the final payment, so no one can later file a lien over unpaid materials. If a contract term is unclear, ask an attorney before signing.
Red Flags in a Quote
Some quote features signal risk regardless of price. Pressure to sign the same day, an offer to cover your insurance deductible, cash-only payment, a total with no scope, or a roofer who arrived unannounced after a storm all deserve caution. The FTC lists door-to-door solicitation and pressure for an immediate decision as warning signs.
The FTC’s list of scam signs includes contractors who “knock on your door looking for business because they are ‘in the area'” and who “pressure you for an immediate decision” (FTC, How To Avoid a Home Improvement Scam).
Other red flags worth checking:
- no business address or phone number on the quote
- a price that changes when you mention insurance
- refusal to put decking or layer pricing in writing
- no photos to support recommended work
A full checklist for vetting the roofer behind the quote is in our guide on how to choose a roofing contractor.
Side-by-Side Comparison Sheet
The simplest way to compare roofing quotes is a one-page sheet with the same rows for every roofer. List the layer count, decking terms, underlayment, flashing, ventilation, shingle line, warranty terms, payment schedule and total. Gaps in any row tell you what to ask before deciding, and the totals start to make sense.
- Write each roofer’s name across the top.
- Copy the scope checklist above down the side.
- Fill each cell from the written quote, not from memory.
- Mark any blank cell and ask that roofer to fill it in writing.
- Only then compare totals.
When the rows match, the remaining difference is usually labor, overhead and material grade. That is a fair basis for choosing. If you are still unsure whether to repair or replace, our decision framework for whether to repair or replace your roof may help.
Emergency Roofing Columbus quotes for homeowners in Columbus, Midland, Fortson and Upatoi. To see what a full roof installation involves, visit our installation page or call (706) 418-8677. For the bigger picture, see how roof problems turn into repair decisions.
Frequently asked questions
How many quotes should you get for a roof replacement?
Get more than one. The FTC’s consumer guidance says to get multiple estimates, each describing the work, materials, completion date and price. Several written, itemised quotes let you compare scope line by line, which tells you far more than comparing totals.
Is $30,000 too much for a roof?
It can be fair or high depending on size, material, pitch and layers. Fixr’s national average for replacement is $10,000, with a typical range of $7,500 to $14,000, but metal on a 1,700 square foot home runs $14,000 to $38,000. Ask what the scope includes before judging the total.
How to tell if a roofer is lying?
Ask for evidence. A trustworthy roofer shows photos of damage, puts the layer count and decking price in writing, and explains why each item is needed. Pressure to sign immediately, cash-only payment, or prices that change when insurance is mentioned are warning signs the FTC and consumer agencies highlight.
How to estimate a roof job?
Roofers measure the roof area in squares of 100 square feet, then price tear-off, decking, underlayment, flashing, ventilation, materials and labor. Fixr’s national average is about $4.75 per square foot, from $3.75 to $11. Pitch, layers and access change the final figure, so a written inspection is needed for a real estimate.
How much should a 1200 sq ft roof cost?
There is no single price. Fixr’s national cost table puts a 1,200 square foot roof at $4,500 to $13,200, based on $3.75 to $11 per square foot. Material, pitch, layers and decking condition move the real number, so treat that as context, not a quote.
What is the average cost to replace a roof in Georgia?
We have not found a Georgia-wide figure from a primary source. Fixr’s national average is $10,000, with a typical range of $7,500 to $14,000. Local quotes vary with the home’s size, materials and condition, so compare itemised quotes from roofers who have inspected your roof.