How Much Does a Roof Replacement Cost in Decatur, GA?

Most Decatur homeowners spend between $9,000 and $18,000 to replace an asphalt shingle roof in 2026. A small, simple roof can come in closer to $7,000. A large, steep, or complex roof that needs new decking can pass $25,000. Three things move your number more than anything else: how big your roof is, how steep it is, and what the crew finds once the old shingles come off.

Below is how that number gets built, what should be in your quote, and why two roofers can look at the same house and come back $6,000 apart.

What a new roof costs in Decatur by material

Roofing material

Typical installed cost

Expected life in Georgia

3-tab asphalt shingles

$7,000 to $12,000

15 to 20 years

Architectural asphalt shingles

$9,000 to $18,000

20 to 25 years

Designer or premium shingles

$14,000 to $25,000

25 to 30 years

Screw-down metal

$15,000 to $28,000

30 to 40 years

Standing seam metal

$25,000 to $50,000 and up

40 to 50 years

Architectural shingles are what most Decatur homes get. They are thicker than 3-tab, they carry higher wind ratings, and they usually come with a limited lifetime manufacturer warranty. If you want the full comparison, we broke down 3-tab versus architectural shingles in a separate post.

One Georgia note on those lifespans. Our heat, humidity, UV exposure, and pollen are hard on asphalt. A shingle rated for 30 years in a cooler climate often gives you 20 to 25 here. Attic ventilation is the single biggest thing that protects that number.

How roofers actually price a roof

Roofers price by the square. One square equals 100 square feet of roof surface. A typical Decatur home has 20 to 35 squares.

• Architectural asphalt runs roughly $350 to $550 per square installed in Metro Atlanta.

• Screw-down metal runs roughly $550 to $900 per square.

• Standing seam metal runs roughly $900 to $1,500 per square.

Measured the other way, full replacement in the Atlanta metro lands around $4 to $11 per square foot, with most asphalt jobs sitting near the lower half of that range.

Your roof is bigger than your house. A 1,500 square foot home usually has closer to 1,800 square feet of roof, because of overhangs and pitch.

Ballpark cost by home size

Home size

Approximate roof area

Architectural shingle cost

1,200 sq ft ranch

15 to 18 squares

$6,500 to $10,000

1,800 sq ft

22 to 26 squares

$9,000 to $14,000

2,500 sq ft

30 to 35 squares

$12,000 to $19,000

3,500 sq ft or steep and complex

40 squares and up

$18,000 to $30,000 and up

Use these as a starting point, not a quote. The only way to know your number is to have someone measure your roof and look in your attic.

Seven things that change your price

1. Roof size. The single biggest factor. More squares, more material, more labor.

2. Pitch. A walkable roof is faster and cheaper. Once the pitch passes about 8/12, the crew needs harnesses and staging, and labor climbs.

3. Layers to tear off. Removing a second layer of old shingles typically adds $1,000 to $2,500 in labor and disposal.

4. Decking condition. This is the one nobody can see from the driveway. Rotted or soft plywood has to be replaced, usually $80 to $120 per sheet. Your quote should name that per sheet price up front so there is no surprise on day two.

5. Complexity. Valleys, dormers, chimneys, skylights, and multiple roof planes all take extra flashing and extra hours. A simple gable roof costs less per square than a cut-up roof of the same size.

6. Ventilation and code upgrades. Many older Decatur homes are under-ventilated. Adding ridge vent, correcting soffit intake, or upgrading underlayment to current code adds cost and adds years to the roof.

7. Material and warranty level. A premium shingle with a manufacturer-backed system warranty costs more up front and transfers to the next owner.

What a real roofing quote should include

Before you sign anything, check that the quote lists all of this in writing:

• Full tear-off or overlay, stated clearly

• Underlayment type and brand

• Ice and water shield at valleys, eaves, and penetrations

• New drip edge

• New pipe boots, not reused ones

• New flashing at chimneys, walls, and skylights

• The attic ventilation plan

• Decking replacement price per sheet

• Permit and dumpster included or excluded

• Cleanup, including a magnet sweep for nails

• Manufacturer warranty, named

• Workmanship warranty, with a number of years on it

• Proof of general liability insurance and workers compensation

If a quote is one page with a single number on it, you are not comparing roofs. You are comparing guesses.

Why two quotes can be $6,000 apart

Two neighbors with similar looking houses can get wildly different numbers. Usually it comes down to five things:

1. One quote is an overlay and one is a full tear-off.

2. One includes new decking allowance and one leaves it as a change order.

3. One uses a builder-grade shingle and one uses an architectural system.

4. One carries workers compensation and general liability and one does not.

5. One includes a real workmanship warranty and one includes nothing.

The lowest number on the page is usually the quote that left the most out.

Will insurance pay for my roof?

Insurance covers sudden damage, like wind, hail, or a fallen tree. It does not cover age, wear, or a roof that simply reached the end of its life.

If your claim is approved, you pay your deductible and your insurer pays the rest, often in two payments. The first covers the depreciated value and the second releases after the work is finished. If you are wondering what a new roof does to your premium, we covered will a new roof lower your insurance separately.

Do I need a full replacement, or will a repair hold?

If your roof is under 12 years old and the damage is in one spot, a repair is usually the right call. If it is 18 years or older, has widespread granule loss, curling edges, or multiple leaks, repairs start costing more than they buy you. We walk through the decision in repair or replace your roof, and we also handle straightforward roof repair in Decatur, GA.

Get a real number for your roof

We will measure your roof, check your attic and decking, photograph what we find, and give you a written, itemized price. No pressure, no sales pitch, no obligation.

Book a free roof inspection with Roofit Restoration, or call (470) 600-0417. We handle roof replacement in Decatur, GA and across Metro Atlanta.

Frequently asked questions

How much does a roof replacement cost in Decatur, GA?

Most Decatur homeowners pay between $9,000 and $18,000 for an architectural asphalt shingle roof in 2026. Smaller, simple roofs can land near $7,000. Large, steep, or complex roofs that need new decking can exceed $25,000.

How long does a roof replacement take?

Most Decatur homes are done in one to two days for asphalt shingles. Larger roofs, steep pitches, or jobs that need significant decking replacement can run three to four days. Weather is the usual reason a job stretches.

Can I put new shingles over my old ones?

You often can, but we do not recommend it. An overlay hides rotted decking, adds weight, traps heat, shortens shingle life in Georgia’s climate, and can limit your manufacturer warranty. A full tear-off costs more up front and gives you a roof you can actually stand behind.

Do I need a permit to replace my roof in Decatur?

Yes. Roof replacements in the City of Decatur and DeKalb County require a permit. Your roofing contractor should pull it, not you. A contractor who tells you a permit is unnecessary is a warning sign.

Why is my roofing quote so much higher than my neighbor’s?

Roof size, pitch, number of old layers, decking condition, and roof complexity all change the price, even between houses that look similar from the street. Shingle grade, warranty level, and whether the contractor carries insurance also move the number.