Where Your Roof Replacement Dollars Go: A Florence, SC Cost Breakdown

Why does one roof quote say $9,800 and another says $14,500 for the same house? That question stops a lot of Florence homeowners cold, and it usually comes down to one thing: the two estimates are not counting the same work. Once you understand the pieces that make up a roof replacement bill, those numbers stop looking random and start telling you something useful.

Below is a plain breakdown of where the dollars actually go on a typical single-family home in the Pee Dee, so you can read any estimate without needing a translator.

The problem: a quote that’s just one big number

The most common estimate we see homeowners bring us is a single line: “Replace roof, $12,000.” No breakdown, no materials listed, no mention of what happens to the old shingles. That’s not necessarily a bad contractor, but it makes it impossible to compare fairly against the next company’s number.

When two prices are far apart, the gap is almost never markup. It’s scope. One estimate might include replacing rotten wood, upgrading ventilation, and hauling away debris. The other might quietly assume your decking is fine and leave those costs out until the tear-off begins. That’s how a “cheaper” roof ends up costing more halfway through the job.

The fix is simple: ask for the estimate broken into parts. Here’s what those parts are.

Diagnosis: the five buckets on a roofing bill

A roof replacement price is really five smaller costs stacked together. Roofers measure roofs in “squares,” where one square equals 100 square feet. A typical Florence ranch or two-story might be 18 to 30 squares.

1. Materials (roughly 35 to 45 percent). This covers shingles or metal panels, underlayment (the water-resistant layer under the shingles), flashing (the metal that seals joints and edges), nails, vents, and drip edge. On a 22-square asphalt roof, materials might run $4,000 to $6,000 depending on the shingle line you choose.

2. Labor (roughly 30 to 40 percent). This is the crew tearing off the old roof and installing the new one. Labor is where speed and experience matter, and where cutting corners shows up later as leaks.

3. Tear-off and disposal. Pulling old shingles and hauling them to the dump costs real money, often $1,000 to $2,000 for a full tear-off, more if there are two old layers to remove.

4. Decking and wood repair. The plywood or board under your roof is the deck. If storms or old leaks rotted it, those sheets get replaced at roughly $70 to $120 each once the roof is open.

5. Permits, cleanup, and overhead. Florence County permits, magnetic nail sweeps of your yard, dumpster fees, and the company’s insurance all live here.

A real-world example: two houses, two prices

Say you have a 20-square asphalt roof in good structural shape. A fair estimate might look like: $5,200 materials, $4,400 labor, $1,400 tear-off, $0 decking (deck was solid), and $1,000 permits and overhead. Total: about $12,000.

Now take a neighbor with the same size roof, but their attic had a slow leak for two years. When the crew tears off, they find eight sheets of soft decking. That’s roughly $800 in wood plus the labor to swap it, pushing their bill toward $13,200. Same house size, different price, and neither contractor did anything wrong.

This is exactly why we recommend a roof inspection before you sign anything. Knowing your deck’s condition ahead of time turns surprise change orders into a number you already planned for. Our guide on what a roof inspection costs and when it pays off walks through that step.

The fix: how to read and compare estimates fairly

When you get two or three quotes, line them up bucket by bucket instead of comparing bottom-line totals. Ask each contractor:

• What shingle or panel are you quoting, by name? A basic 3-tab shingle and an architectural shingle are different products with different lifespans.
• Is a full tear-off included, or are you roofing over the old layer? Roofing over is cheaper up front but can hide problems and may not be allowed if two layers already exist.
• What’s your allowance for decking replacement? A good estimate names a per-sheet price so you’re not blindsided.
• Does the price include the permit, cleanup, and haul-away?

If one quote is thousands lower, the answer is usually in those questions. Metal roofs, for instance, cost more in both materials and labor than asphalt but last longer, so comparing an asphalt quote to a metal quote by price alone tells you almost nothing.

For a fuller look at total ranges by roof type and size, see our Florence roof replacement cost guide. And if the damage came from a storm rather than age, our post on what roof repairs actually cost in Florence covers the repair-versus-replace decision.

When to act

If your roof is under 15 years old and just needs a section fixed, a repair usually makes more sense than a full replacement. But if you’re seeing widespread granule loss, multiple leaks, or your roof is past 20 years, replacement dollars are better spent now than after the next hurricane season. Homeowners across Florence and the Pee Dee tend to schedule replacements in late winter and early spring, before summer storms crowd every roofer’s calendar.

The goal isn’t to find the cheapest number. It’s to find the honest one, where every dollar is accounted for and nothing surprising is waiting under the shingles.

Frequently Asked Questions

My estimate had no decking cost listed. Is that a red flag? Not always, but ask about it. Some contractors leave decking off until they can see the deck, then charge per sheet during the job. That’s normal as long as they tell you the per-sheet price up front. A quote that promises zero decking cost sight-unseen is the one to question, because nobody knows the deck’s condition until the old roof is off.

Can I save money by roofing over my existing shingles instead of tearing off? Sometimes, and it can cut $1,000 to $2,000 from the tear-off line. But a layover adds weight, can trap moisture, and hides rot in the deck below. South Carolina also limits you to a certain number of layers. If your current roof has soft spots or you’ve had leaks, tear-off is the safer money.

Two quotes are $3,000 apart. Does that mean the higher one is overcharging? Usually it means different scope, not different greed. Compare the materials named, whether tear-off and permits are included, and the decking allowance. When you line up the buckets, the gap almost always explains itself. If it doesn’t, ask the higher-priced contractor to walk you through the difference before assuming anything.

What if the roof damage came from a storm? Then insurance may cover much of the cost, and the breakdown still helps you check your adjuster’s numbers. See our guide on emergency tarping and storm damage repair costs for the first steps after a storm.