Is installing a new roof cheaper than replacing an old one?

It can be, since there's no tear-off, disposal, or dealing with existing decking damage, but overall cost still depends heavily on the size and complexity of the roof.

Do I need my own roofer if I'm building through a general contractor?

Often the GC brings in their own roofing subcontractor, but if you're building an addition or detached structure on your own, you'll want to line up a roofer directly.

Can the same contractor handle both a garage and the main house roof?

Most residential roofers can handle additions and detached structures alongside main house work, since the installation techniques are similar.

New roof installation for new construction in Georgia

Putting a roof on a house that doesn't have one yet, whether that's new construction, a room addition, or a detached garage or workshop, is a different job than tearing off and replacing an existing roof. There's no old material to remove, but there's more coordination with the builder's schedule and other trades.

Installation on new-construction homes working with builders and general contractors
Additions and detached structures like garages, workshops, and porches
Working from architectural plans rather than matching an existing roof
Coordination with framing and sheathing crews before roofing starts

This work often comes through builder relationships rather than a homeowner calling directly, but homeowners managing their own addition or building a shop on their property will also need to find a roofer for this specific scope.

What it costs

Because there's no tear-off or disposal of old roofing material, the cost structure differs from a replacement, though total cost still depends on roof size, pitch, and material choice (shingle, metal, or other). Builders who work regularly with a roofing contractor often get more predictable pricing than a one-off homeowner project.

Top 3 by our score

Ranked from our published scoring of public Google reviews for residential roofing.

1. Roofing Done Wright
5.0★ · 487 reviews

94
2. Black Dog Roofing
5.0★ · 291 reviews

94
3. Eastside Roofing, LLC
5.0★ · 168 reviews

93

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FAQ

Is installing a new roof cheaper than replacing an old one?: It can be, since there's no tear-off, disposal, or dealing with existing decking damage, but overall cost still depends heavily on the size and complexity of the roof.
Do I need my own roofer if I'm building through a general contractor?: Often the GC brings in their own roofing subcontractor, but if you're building an addition or detached structure on your own, you'll want to line up a roofer directly.
Can the same contractor handle both a garage and the main house roof?: Most residential roofers can handle additions and detached structures alongside main house work, since the installation techniques are similar.