How to Read a Roofing Estimate (What to Look For)
A roofing estimate is not just a price — it is a document that tells you exactly what you are paying for, what materials will be used, what work will be done, and what protections you will have after the job is finished. A good estimate from a quality contractor is detailed, transparent, and easy to compare. A bad estimate is vague, missing key items, and designed to look cheaper than the competition by leaving things out.
This guide walks through every line item you should expect to see in a roofing estimate, what each item means, what it should cost in Myrtle Beach, and the red flags that indicate a contractor is not someone you should trust with your roof. By the end, you will be able to compare estimates confidently and identify the best value — not just the lowest price.
Need estimates to compare? WeatherShield Roofing provides free, detailed written estimates for roof replacement and roof repair in Myrtle Beach. We itemize everything so you can compare apples to apples.
Every Line Item a Roofing Estimate Should Include
A professional roofing estimate should read like a detailed scope of work, not a single number. Here is everything that should be itemized:
1. Tear-Off and Disposal
This covers removing the existing roof down to the deck. The estimate should state how many layers are being removed (one layer vs two) because two layers costs more. Disposal includes dumpster rental and hauling. In Myrtle Beach, tear-off and disposal typically costs $1.00 to $2.00 per square foot, or $100 to $200 per roofing square.
2. Roof Deck Inspection and Repair
The estimate should include a provision for deck repair, typically stated as a per-sheet cost for replacement plywood or OSB if damaged decking is found during tear-off. A common structure is "first 2 sheets included, additional sheets at $75 to $125 each." Contractors cannot fully assess deck condition without removing the old roof, so this variable item is standard and fair. Be wary of estimates that do not mention deck repair at all — it does not mean they will do it for free. It means you will get a surprise upcharge.
3. Underlayment
The estimate should specify the type and brand of underlayment. In coastal SC, synthetic underlayment is standard (not felt paper). Look for the brand name and product line. Common quality options include GAF FeltBuster, Owens Corning ProArmor, and CertainTeed DiamondDeck. Cost: $0.50 to $1.50 per square foot.
4. Ice and Water Shield
Self-adhering membrane installed at eaves, valleys, and around penetrations. South Carolina building code requires ice and water shield at all eave edges extending 24 inches past the interior wall line. The estimate should specify where it will be installed. Cost: approximately $1.00 to $2.50 per square foot of area covered.
5. Shingles (Material Specification)
This is the biggest material line item. The estimate should specify:
- Manufacturer — GAF, Owens Corning, CertainTeed, etc.
- Product line — e.g., GAF Timberline HDZ, Owens Corning Duration
- Type — 3-tab vs architectural vs designer
- Color — Should be specified or noted as "homeowner selection"
- Quantity — Number of squares
- Wind rating — Should meet Wind Zone III requirements (130+ mph)
6. Flashing
Step flashing, counter flashing, valley flashing, pipe boot flashing — the estimate should specify what is being replaced. On a full replacement, all flashing should be new. In coastal areas, the estimate should specify stainless steel or aluminum flashing. Standard galvanized flashing corrodes in salt air. This is a common area where cheaper contractors save money by reusing old flashing or installing standard galvanized.
7. Drip Edge
Metal edging along eaves and rakes. South Carolina code requires drip edge on all edges. The estimate should specify the material (aluminum is standard) and that it will be fastened per code: every 4 inches at the eave, every 6 inches at the rake in Wind Zone III. Cost is typically included in the overall material line item but should be mentioned.
8. Ventilation
Ridge vents, box vents, or other exhaust ventilation should be listed. If a ridge vent is being installed, the linear footage should be noted. If the existing ventilation is adequate, the estimate should state that existing ventilation will be maintained or upgraded as needed.
9. Labor
Some estimates show labor separately, others include it in the per-square pricing. Either approach is fine as long as the total is clear. Labor in Myrtle Beach for a standard architectural shingle installation runs $150 to $300 per square, which is higher than the national average due to Wind Zone III installation requirements (6-nail pattern, enhanced fastening).
10. Permits
A legitimate contractor includes the Horry County building permit in their estimate. Permit cost for a residential re-roof in Horry County runs $150 to $300 depending on the project value. If the estimate does not mention a permit, ask. A contractor who skips the permit is exposing you to code violation fines and potential insurance coverage issues.
11. Warranty Information
Two warranties should be specified: the manufacturer material warranty (covering defective shingles) and the contractor workmanship warranty (covering installation errors). A quality contractor provides 5 to 25 years on workmanship. GAF Certified contractors can offer the Golden Pledge warranty with 50-year material and 25-year workmanship coverage. The estimate should name the specific warranty program.
12. Timeline and Payment Terms
The estimate should state the expected start date, project duration, and payment schedule. Standard payment structures include: one-third deposit, one-third at material delivery, one-third at completion. Or: deposit at signing, balance due at completion. Never pay in full upfront.
Sample Roof Replacement Estimate (2,000 Sq Ft Home, Myrtle Beach)
| Line Item | Description | Cost |
|---|---|---|
| Tear-off & disposal | Remove 1 layer, dumpster, haul | $1,500 – $2,500 |
| Synthetic underlayment | GAF FeltBuster or equivalent | $600 – $1,000 |
| Ice & water shield | Eaves, valleys, penetrations | $400 – $800 |
| Architectural shingles | GAF Timberline HDZ, 22 squares | $2,200 – $3,500 |
| Flashing (stainless steel) | Step, counter, valley, pipe boots | $400 – $800 |
| Drip edge & starter strip | Aluminum, all edges | $200 – $400 |
| Ridge vent | 40 linear feet, with cap shingles | $200 – $400 |
| Stainless steel fasteners | 6-nail pattern, Wind Zone III | $150 – $300 |
| Labor | Installation, 4-person crew, 1-2 days | $3,000 – $5,000 |
| Building permit | Horry County roofing permit | $150 – $300 |
| Deck repair allowance | 2 sheets included, additional at $85/sheet | Included (2 sheets) |
| Total | Architectural shingle replacement | $8,800 – $15,000 |
Red Flags in a Roofing Estimate
- Single lump sum with no breakdown — "Roof replacement: $8,000" tells you nothing about what materials they are using or what work they are performing. Legitimate contractors itemize.
- No permit mentioned — Skipping the permit saves the contractor $150 to $300 and avoids inspection. This puts you at risk of code violations and insurance issues.
- No license number on the document — South Carolina law requires a contractor license. The number should be printed on every estimate and contract.
- Demanding more than 30% upfront — Large deposits give you less leverage if the work is poor. Any contractor who needs most of the money upfront may have cash flow problems.
- Pressure to sign immediately — "This price is only good today" is a high-pressure tactic. Legitimate estimates are valid for 30 to 60 days.
- Dramatically lower than other estimates — If one bid is 30% below three others, they are cutting corners somewhere: cheaper materials, fewer nails, no permit, reusing old flashing, or underpaying workers.
- No mention of coastal-specific requirements — In Myrtle Beach, a legitimate estimate mentions Wind Zone III, 6-nail pattern, and stainless steel fasteners. If these are missing, the contractor may not be familiar with coastal building codes.
- No warranty details — If the estimate does not mention warranty terms, the contractor may not offer one.
How to Compare Multiple Roofing Estimates
Comparing roofing estimates requires looking beyond the bottom-line number. Use this checklist to make an apples-to-apples comparison:
- Same material grade — Are all estimates using architectural shingles, or is one using 3-tab? The grade difference can account for $1,000 to $3,000.
- Same scope of flashing work — Is one estimate reusing old flashing while another replaces it all? New stainless steel flashing adds $400 to $800 but lasts the life of the roof.
- Underlayment type — Synthetic vs felt paper can be a $300 to $600 difference. Synthetic is the right choice for coastal SC.
- Fastener specification — Stainless steel costs more than galvanized. Both meet code, but stainless lasts significantly longer near the coast.
- Warranty comparison — A 25-year workmanship warranty is worth more than a 5-year warranty, even if the upfront price is higher.
- Permit inclusion — Is the permit included in the price or will it be an add-on?
- Deck repair terms — How many sheets are included? What is the per-sheet charge for additional replacements?
Questions to Ask Your Roofing Contractor
- What is your South Carolina contractor license number?
- Do you carry general liability and workers compensation insurance?
- Will you pull the Horry County building permit?
- What specific shingle product and color will be installed?
- What nail pattern will you use? (The answer should be 6-nail for Wind Zone III.)
- What type of fasteners — standard galvanized or stainless steel?
- Will all flashing be replaced or will you reuse existing?
- What is your workmanship warranty period?
- What manufacturer warranty program do I qualify for?
- What happens if you find deck damage during tear-off?
- What is the payment schedule?
- When can you start and how long will it take?
For a deeper dive into choosing a contractor, see our guide to choosing a roofing contractor in Myrtle Beach.
Frequently Asked Questions
What should a roofing estimate include?
A proper estimate should itemize: tear-off and disposal, underlayment type and brand, shingle type brand and color, flashing materials, drip edge, ice and water shield, ventilation, deck repair allowance, labor, permit fees, cleanup, project timeline, payment terms, and warranty details. Estimates with only a single lump sum are a red flag.
How many roofing estimates should I get?
Get 3 to 5 estimates from different licensed contractors. This gives you enough data to identify market rate. If one is more than 20% below average, that is a sign of cut corners. The middle range is typically the fairest price for quality work.
What are red flags in a roofing estimate?
No itemized breakdown, no permit mention, no license number, demands for large upfront payment, pressure to sign immediately, significantly lower price than all others, and no mention of Wind Zone III requirements in coastal SC. These all indicate problems.
How much should a roof replacement cost in Myrtle Beach?
A typical 2,000 square foot home with architectural shingles costs $9,000 to $14,000 in 2026. Standing seam metal runs $20,000 to $36,000. Costs are 10 to 20% higher than inland due to Wind Zone III code requirements.
Should I pay a deposit for roof work?
A deposit of 10 to 30% is standard. Never pay more than one-third upfront and never pay in full before work begins. Standard terms are one-third at signing, one-third at material delivery, one-third at completion. Always pay by check or credit card, never cash.
What is the difference between an estimate and a quote?
An estimate is an approximate cost that may change if unexpected issues arise. A quote is a fixed price with specific provisions. Most roofing contractors provide estimates with a clause for additional deck repair at a per-sheet rate, which is standard because deck condition cannot be fully assessed until the old roof is removed.
Get a Transparent Roofing Estimate in Myrtle Beach
WeatherShield Roofing provides fully itemized estimates that show you exactly what you are paying for. No hidden costs, no surprise upcharges, no pressure. We will explain every line item in plain language and answer every question you have.
We are GAF Certified contractors (SC License #124773) with 82 five-star Google reviews, serving Myrtle Beach homeowners since 2022. Our estimates include Wind Zone III specifications, stainless steel fasteners, and full warranty details.