About us
A family name North Georgia has trusted since 1921.
Duffy Companies is a full-service, family-owned general contractor based in Cumming, GA. For more than a century we’ve helped homeowners across North Georgia through the worst days — storms, leaks, fallen trees — and the best ones, from new decks to full remodels.
With 100+ years in business and a former insurance adjuster on staff, we handle the whole job — and the whole claim — so you deal with one company you can trust.
How we work
The standard behind every project.
A century of trust
Family-owned since 1921. Generations of the same standard: do it right, stand behind it, and treat every home like our own.
Insurance claims, handled
A former insurance adjuster on staff documents the damage and works with your adjuster, so you get a fair settlement and a proper repair.
Licensed & insured
One accountable general contractor for the whole project. Properly licensed, fully insured, and here 24/7 for emergencies.
Straight answers
A clear scope and an honest estimate up front. No pressure, no surprise add-ons — just the work you need, done to code.