A full re-roof: tear-off to the decking, new underlayment, ice and water shield at the eaves, new flashing, balanced ventilation and architectural shingles.
On older Royal Oak homes, expect the estimate to allow for decking replacement once the old layers are off, priced per sheet.
Missing or lifted shingles, cracked pipe boots, failed flashing and small damaged areas, estimated as a repair and kept separate from replacement.
If the roof is otherwise sound, a repair is usually the sensible choice. If leaks keep coming back in different places, ask for a replacement price too.
Water stains and drips in heavy rain or during snowmelt. The source is often some distance from the stain, so it has to be traced before it's fixed.
Common culprits are flashing at chimneys and walls, cracked pipe boots, valleys and ice dams.
High winds lift and tear shingles along ridges and edges, and hail can bruise and crack them. Missing shingles leave the underlayment exposed to the next storm.
If it's connected with an insurance claim, say so in your request. Not every roofer takes insurance work.
The metal flashing where the roof meets a chimney, wall or skylight is one of the most common leak points on older homes.
Rebuilding step and counter flashing around a brick chimney is usually a repair, not a reason to replace the whole roof.
Ridges of ice at the eaves back meltwater up under the shingles and into ceilings and walls, a common winter problem on Michigan roofs.
The lasting fix is attic air sealing, insulation and ventilation, plus ice and water shield along the eaves when the roof is replaced.
Detached garages often have a lower-pitched roof that wears differently from the house, and very low slopes need a different roofing material than shingles.
A garage can be estimated on its own or with the house. Doing both in one visit usually saves on setup and disposal.
Not sure whether to repair or replace? A roofer can inspect the roof and price both options, so you can compare what each fixes.
Ask what they found, with photos, and which findings support their recommendation.