CertainTeed Landmark shingles typically cost about $110-$170 per roofing square for shingles alone, while a professionally installed roof commonly runs $450-$800 per square. The final quote depends on roof size and pitch, local labor rates, tear-off, underlayment, and whether the deck needs repairs.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Landmark shingles, materials only | $110/square | $140/square | $170/square | One square covers 100 sq. ft.; typically three bundles |
| Installed roofing, before major repairs | $450/square | $600/square | $800/square | Includes typical materials and labor |
| 1,500 sq. ft. roof, installed | $6,750 | $9,000 | $12,000 | About 15 squares before waste |
| Shingle material per sq. ft. | $1.10 | $1.40 | $1.70 | Shingles only, not installation |
Assumptions: U.S. contractor pricing for standard Landmark architectural shingles, ordinary access, and a typical asphalt-roof replacement; regional quotes vary.
What Landmark shingles cost per roofing square
Budget roughly $110-$170 per square for the shingles alone, or $450-$800 per square for a standard installed roof. A roofing square equals 100 square feet of roof surface, not 100 square feet of floor area. Landmark shingles are commonly sold in bundles, with about three bundles covering one square before waste. Retail pricing varies by color, supplier, order size, and location.
Installed pricing generally includes shingles, underlayment, starter strips, ridge materials, fasteners, and installation labor. It may not include tear-off, damaged sheathing, flashing replacement, permits, or unusual access. Roofers usually add 10%-15% for cutting and waste, with more needed on complex roofs.
How shingle, underlayment, and labor shape the quote
The shingle package is only one part of the bill; labor, roof preparation, and edge and ridge materials add substantially to the total. This example breaks down a typical replacement rate per square. Individual quotes may group line items differently, so the ranges are estimates rather than fixed fees.
| Quote component | Low | Average | High |
|---|---|---|---|
| Landmark shingles | $110/square | $140/square | $170/square |
| Underlayment, starter, ridge, and fasteners | $45/square | $75/square | $120/square |
| Installation labor | $180/square | $260/square | $380/square |
| Tear-off and disposal | $40/square | $80/square | $140/square |
| Flashing, permits, and overhead | $35/square | $70/square | $150/square |
The table’s upper amounts reflect more demanding jobs, not a required charge on every project. Roofers may quote labor as a per-square rate instead of listing hours and hourly pay, so the estimate should specify what installation and cleanup include.
Which roof pitch and layers push price up
Steep slopes, complicated layouts, and multiple existing shingle layers can lift the installed price by $50-$200 or more per square. A roof with a pitch above 6:12 often requires additional fall protection and slower handling; very steep or difficult sections can add 10%-25% to labor. Dormers, valleys, skylights, and many hips also increase cutting and flashing work.
Removing two existing layers can cost more than removing one, often adding $30-$80 per square for extra handling and disposal. If roof sheathing is soft or damaged, replacement may add about $70-$150 per 4-by-8-foot sheet installed, depending on wood prices and access. Ask the contractor to price concealed deck repairs separately.
What labor time adds to a Landmark reroof
A straightforward 20-square roof commonly takes a crew of three or four about one to three working days, while complex roofs take longer. Labor pricing varies with crew experience, local wages, roof height, slope, and how much old material must be removed. In higher-wage metro areas, the same scope can cost 10%-25% more than a comparable rural-market job.
A bid should state whether tear-off, hauling, magnetic nail cleanup, flashing work, and final inspection are included. A low labor rate may not represent savings if disposal or site protection appears as a separate charge. Confirm the estimated start date and how weather delays are handled.
How removal and decking repairs change the total
Old-roof removal and hidden wood damage are common reasons the final invoice exceeds a shingles-only calculation. Tear-off and disposal often add $40-$140 per square, with the high end more likely for multiple layers, heavy materials, or expensive local dump fees. Some jurisdictions restrict reroofing over existing shingles, so confirm local requirements before comparing an overlay bid with a full replacement.
Flashing around chimneys, walls, and skylights may need replacement rather than reuse. Small flashing or ventilation upgrades may add $150-$600, while extensive repairs can cost more. Get written unit prices for sheathing, fascia, and flashing work so any change order can be checked against the original scope.
Landmark versus higher-grade asphalt shingles
Comparing the complete installed system matters more than comparing bundle prices alone. Landmark is an architectural asphalt shingle; premium lines can cost more for design features, protection terms, or other product specifications. Depending on the product and installer, upgrading shingles may add about $50-$150 per square for materials, with a larger increase if the system also requires different accessories.
For a 20-square roof, that material difference could mean roughly $1,000-$3,000 before any related labor or accessory changes. Ask each contractor to identify the exact product, color, included underlayment, ridge cap, warranty terms, and installation requirements. A lower-priced bundle is not a like-for-like comparison if the rest of the roofing system differs.
Where U.S. roofing rates shift installed price
Labor markets and disposal charges can move a Landmark installation quote by several thousand dollars on a typical home. As a broad comparison, rural areas may run around 10%-15% below a national middle estimate, while major coastal or high-cost metro markets can be 15%-30% above it. These are directional differences; local contractor availability and roof access can outweigh the regional average.
For a 20-square roof at a middle-market rate of $600 per square, the rough total is $12,000. A 15% lower quote would be about $10,200, while a 25% higher quote would be about $15,000. The same roof specification, tear-off scope, and warranty should be compared across bids to make regional price differences meaningful.
Where homeowners can trim the Landmark quote
Controlling roof scope and comparing itemized bids are usually safer savings measures than choosing materials solely by the lowest bundle price. Obtain at least three written estimates using the same roof measurements and product specification. Check whether quantities include waste and whether disposal, flashing, permits, and cleanup are included.
Replacing shingles during a planned project can avoid rush scheduling, while adding unrelated upgrades can inflate the bill. Keep ventilation or sheathing work tied to documented needs, and ask whether repair is practical when damage is limited to a small area. Do not skip required underlayment, flashing, or code work to lower the initial price; omissions can create additional costs later.