Roofing Calculator – Estimate Your Roof Costs

Calculate Roof Installation Cost based on house dimension, slope, roofing material, & building height. Estimates costs for Asphalt, Metal and Flat (Low Slope) roofing. This calculator will help estimate total installation cost for new or retrofit projects, by a professional contractor, & includes all materials, labor, & misc. costs of new install, such as dump fees, building permits, profit & overhead.

A roof protects your biggest investment your home, from ice snow rain, and other weather elements. Yet, it costs an average of 3% of your house price. And when it comes time to replace it, many homeowners dont know what the cost of new roof should be. Some also try to get the lowest price possible. This tool will help you calculate FAIR market rates for roof replacement, base your details, and geographic location. Most of the time this tool is about 98% accurate to the real world quotes that you will get from contractors.

Just a small advice for those homeowners who want to get the lowest possible price its too expensive to buy cheap roofs, as it will cost you double to redo it after it start leaking within a year. This is from my vast experience.

CALCULATOR UPDATE: New Region Setting To get a more accurate calculation, weve added new region setting where you can choose where u live, to get average price adjustment, base on your local economic conditions. This will not be 100% accurate, but will work for most people.

Your ACTUAL costs may vary by a HUGE amount, depending on where you live. For example, if you are in the Pacific region (CA, OR, WA, AK), you you will pay 18% more than the National Average. If on the other hand you are in the West South Central (TX, LA, OK, AK), you will pay 16% less than National Average.

Thus, by adding Region price adjustment setting, we made our calculator tremendously more accurate than before. Lo learn more about regional price differences for roofing (and other construction trades), check out our guide here.

US Regions Map

How to Calculate Roof Price:

To estimate the replacement cost, you need to get ground measurements of your house (if your roof has overhangs, ADD [overhang width * 2] to both length and width), the slope (pitch), complexity, height of the building, number of chimneys / skylights, length of ridge vent (if any), number of old material layers to be removed (tear-off) and a roofing material you are estimating.

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Roofing Calculator - Estimate Your Roof Costs