HomeColumbusMultifamily Alteration

Every contractor winning Multifamily Alteration in Columbus.

Classification: not yet measured

$3.9B in reliable permit value across 28,722 filings, all time — ranked by who’s pulling them, what they’re worth, and how fast they’re moving.

refreshed Aug 26, 2026 · classified, not scraped

Classification scopeClassification precision for Multifamily Alteration in Columbus has not yet been measured against our ≥99% certification bar. The permits are shown; treat the cohort boundary as provisional until certification.
Classification coverageOf 674,787 permit records we hold for Columbus, 671,151 (99.5%) carry the work markers our cohort rules need — the rest are published without a residential/commercial signal we can classify on. Of those, 671,151 (100%) are placed in a cohort. Certification measures whether that placement is right — not how much of the corpus reaches it.
Find Multifamily Alteration contractors near your branchEnter your address — see who’s pulling these permits in your radius.

Contractors winning Multifamily Alteration in Columbus

Ranked by permit volume · 28,722 filings, all time
#ContractorMultifamily Alteration permitsReliable value90d
1Feazel Roofing2,359≈$103M-85%
2Able Roofing1,221≈$115M+225%
3Rosati Windows500≈$69.3M-39%
4Ke Gutridge473≈$70.9M-60%
5Koorsen Fire & Security433≈$11.3M-84%
6Rosati Window339≈$7.4M
7Kessler Heating & Cooling324≈$1.0M+100%
The ranked list continues — reliable values and contacts for all 1,266 contractors in this segment.See the full leaderboard →

Contractors with too few reliable filings to stand behind a value still rank by volume — their value shows , never a fabricated number.

What’s in the full list

  • Every contractor ranked by reliable value
  • Recent projects + permit-level detail per contractor
  • A daily email when a new filing lands
  • CRM-ready export — enriched + parcel-joined
See your territory →

Free to explore — no card.

Why this list is real

These contractors are ranked from classified permits, not keyword scrapes. We read each permit’s work-type, scope, and occupancy fields to place it in Multifamily Alteration — so a filing that looks like a generic alteration lands in the right segment, and the ranking reflects real work. When the fields don’t support a confident call we mark it Unclassified — we never force a wrong segment to pad a contractor’s count.

How we classify →
Alert me when Multifamily Alteration momentum crosses a threshold.Single-window signal (last 90 days vs the prior 90) — at most once a week, no account.
+%

Email when Multifamily Alteration momentum in Columbus crosses +25%.

Get the full Multifamily Alteration target list for Columbus.

Every ranked contractor, recent projects, and a daily email when new permits land — scoped to your segment and metro.

See your territory →Pro — $89/mo · self-serve
Keep tabs on your Columbus territory — a weekly Multifamily Alteration digest.No account needed — new Multifamily Alteration permits across Columbus, once a day when something new lands. Unsubscribe anytime.
Market chartspoint-in-time snapshot
Typical project size · multifamily alteration · Columbus$12Kmiddle 50% · across 18,263 valued permits
Aggregate, point-in-time — free to view. Export the underlying numbers with Pro.
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FAQ

Frequently asked about multifamily alteration permits in Columbus

How many multifamily alteration permits are pulled in Columbus each year?
28,722 multifamily alteration permits are currently indexed for Columbus. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.
Where can I see the latest multifamily alteration permits in Columbus?
The board above ranks the contractors winning multifamily alteration permits in Columbus by volume and reliable value. To browse the underlying permit filings themselves — filter by cohort, by date range, by contractor — use the PermitCore API or the Market Explorer.
How is the multifamily alteration data in Columbus refreshed?
PermitCore rebuilds the Columbus index nightly. The underlying municipal source publishes on its own cadence, which varies by jurisdiction, so each page stamps its own freshness (the "as of" date) rather than promising a fixed interval — and a stale source is marked as such. Segment classification is applied automatically by PermitCore's classification engine; field-level data-quality flags surface inline so you can filter for clean rows.
Can I export Columbus multifamily alteration permits?
Yes — the free tier includes 5,000 exports / month (CSV or Parquet); one bulk export counts as 1 export regardless of row count. Pro removes the cap with unlimited exports and full-data browse across all jurisdictions.