Home & Garden
Roof cost calculator
Build a rough roof replacement estimate from your roof area, material choice, complexity, and local rate assumptions.
- Editable material and labor rates
- Waste and disposal included
- Low and high planning range
Formula and method
Roof estimate method
total = material cost + labor cost + disposalMaterial cost uses area plus waste buffer and a material factor. Labor uses base area and a complexity factor.
Local quotes should replace the defaults before using the estimate for decisions.
Assumptions
- All prices are manual inputs.
- Complexity adjusts labor only.
- The range is a planning range, not a quote.
Practical examples
Asphalt roof
140 m², medium complexity, 12% waste
Material, labor, disposal, and range shown separatelyMetal roof scenario
Same area with metal material
Material factor increases the estimateFAQ
Is this a contractor quote?
No. It is a rough planning estimate based on editable assumptions.
Why is complexity included?
Steep pitches, valleys, access, and penetrations can increase labor time.
Should I include removal?
Yes if the old roof must be removed or disposed of.
Does it fetch live prices?
No. All rates are manual so the page stays static and transparent.