Provider profile · Engineering-first · Midwest (Columbus/Cleveland, OH + Detroit)
Duffy+Duffy
Long-tenured Midwest engineering firm; verifiable per-type evidence is office buildings, plus a genuine LEED / green-building specialization.
At a glance
| Firm type | Engineering-first |
|---|---|
| Methodology | Engineering-based; CPAs plus construction engineers/estimators; on-site visits part of the process. |
| Delivery | Site-visit |
| Pricing transparency | Estimator — Flat fee; free no-cost estimate on request. |
| Turnaround | Not stated. |
| Deliverables | fixed-asset schedule |
| Audit-support terms | Not detailed on the pages reviewed. |
| Stated specialties | Office, LEED / green buildings |
| Source | Duffy+Duffy materials (as of Jul 2026) |
How Duffy+Duffy ranks by property type
| Property type | Rank | Score | Guide |
|---|---|---|---|
| Medical office | #12 | 6.5 | Medical office guide |
| Warehouse & distribution | #13 | 6.5 | Warehouse & distribution guide |
| Retail | #13 | 6.5 | Retail guide |
| Manufacturing | #13 | 6.5 | Manufacturing guide |
| Restaurant | #14 | 6.5 | Restaurant guide |
| Gas station & c-store | #19 | 5.6 | Gas station & c-store guide |
| Fitness & gym | #19 | 5.6 | Fitness & gym guide |
| Car wash | #20 | 5.6 | Car wash guide |
| Dental office | #20 | 5.6 | Dental office guide |
| Veterinary | #20 | 5.6 | Veterinary guide |
| Auto dealership | #20 | 5.6 | Auto dealership guide |
| Self-storage | #21 | 5.6 | Self-storage guide |
Scores are this guide's published rubric output; see how we compare. Facts above are from Duffy+Duffy's public materials (as of Jul 2026); no reviews or ratings are used.