Best Room Addition Contractors in Cincinnati — Ranked 2026

We ranked 1 room addition contractors in Cincinnati.

Rankings last updated April 17, 2026

  1. #1 — The Delta Building Group Score: 13/100

    The Delta Building Group

    Services: Whole Home Renovation, Room Addition. View full profile →

How We Rank Home Remodeling Contractors

Our Guide Score (0–100) combines Google reviews (25%), professional credentials like CGR/CAPS/NARI certification (20%), press recognition (15%), review volume (15%), web and portfolio presence (10%), years of experience (10%), and profile completeness (5%). Read our full methodology →