# LARGEST COMMERCIAL ROOFING COMPANIES IN THE U.S. 2026 OWNER'S GUIDE

> A source-backed guide to the largest U.S. commercial roofing companies by roofing revenue, plus an owner-side framework for deciding which contractor is best for a building or portfolio.

Canonical: https://commercialroofingadvisors.com/resources/largest-commercial-roofing-companies

Last updated: 2026-08-24

A source-backed guide to the largest U.S. commercial roofing companies by roofing revenue, plus an owner-side framework for deciding which contractor is best for a building or portfolio.

[See the ranking](https://commercialroofingadvisors.com/resources/largest-commercial-roofing-companies#largest-commercial-roofers)

**Prepared by Commercial Roofing Advisors.** Reviewed 2026-07-26. The latest complete source used below is ENR's 2025 roofing ranking, which reports 2024 roofing revenue.

Direct answer

## Who is the largest commercial roofing company?

**Tecta America is the largest U.S. roofing contractor in the latest complete revenue ranking reviewed here.**

Engineering News-Record's 2025 Top 20 Firms in Roofing lists Tecta America first at $1.5 billion in 2024 roofing revenue, followed by CentiMark at $1.265 billion and Flynn Group at $621.2 million. Roofing Contractor's separate 2025 list also placed Tecta first and CentiMark second.

| 2025 rank | Company | Reported 2024 roofing revenue |
| --- | --- | --- |
| 1 | Tecta America | $1,500.0M |
| 2 | CentiMark Corp. | $1,265.1M |
| 3 | Flynn Group of Companies | $621.2M |
| 4 | Baker Roofing Co. | $329.7M |
| 5 | Greenwood Industries | $186.4M |
| 6 | O'Hara's Son Roofing | $163.5M |
| 7 | Kalkreuth Roofing and Sheet Metal | $154.0M |
| 8 | Advanced Roofing | $135.4M |
| 9 | Douglass Colony Group | $72.7M |
| 10 | Commercial Roofers Inc. | $59.6M |

**Sources:** [ENR 2025 Top 20 Firms in Roofing](https://www.congruex.com/wp-content/uploads/2025/10/ENR10272025_Top600_compressed.pdf) and [Roofing Contractor's 2025 Top 10](https://www.roofingcontractor.com/articles/101115-the-top-10-roofing-contractors-of-2025). Rankings are revenue-based, not quality ratings. Revenue was reported by the publications and should not be read as a warranty, recommendation, or current capacity statement.

Largest is not automatically best

## The best commercial roofer is the best-qualified fit for the scope

National scale can help with [portfolio standards](https://commercialroofingadvisors.com/who-we-serve/portfolios), emergency coverage, procurement, reporting, and multi-market work. It does not replace local supervision, manufacturer authorization, a complete scope, qualified crews, transparent subcontracting, safety performance, references, and accountable closeout.

### For one building

Prioritize system experience, local service capacity, field leadership, manufacturer status, references, and a bid that answers the complete scope.

### For a portfolio

Also evaluate national-account governance, response standards, reporting consistency, data ownership, warranty administration, and escalation paths.

### For a replacement

Separate the contractor-selection decision from the scope decision. Define the assembly, quantities, testing, alternates, closeout, and change controls before comparing bids with a complete [roof RFP](https://commercialroofingadvisors.com/resources/what-to-include-in-a-roof-rfp).

### For repairs

Verify diagnostic ability, service response, documentation, warranty compliance, not-to-exceed authority, and how recurring failures are escalated.

**From roof review to completed work**

Commercial Roofing Advisors provides commercial roof inspections, repairs, restoration, maintenance, and replacement. We document the existing conditions and proposed work so owners can compare a written scope, budget, and project plan.

[Request a roof inspection or proposal](https://commercialroofingadvisors.com/contact)

## Questions to ask before awarding a commercial roofing contract

- Who will supervise this project every day?
- Which work will be subcontracted?
- Is the contractor authorized for the specified warranty?
- What exclusions can become change orders?
- How are wet insulation and deck repairs measured?
- What documentation is required at closeout?
- Who owns leak response during construction?
- How will warranty repairs be handled later?

[How to vet a contractor](https://commercialroofingadvisors.com/resources/how-to-vet-a-roofing-contractor)[Request an owner-side review](https://commercialroofingadvisors.com/contact)

Use the ranking to make a better roof decision

## Connect contractor selection to condition, system, and lifecycle scope

### [Start with a roof evaluation](https://commercialroofingadvisors.com/services/roof-evaluations)

Document membrane condition, moisture risk, drainage, details, and remaining options before asking contractors to price a solution.

### [Protect service life with maintenance](https://commercialroofingadvisors.com/services/maintenance-contracts)

Use scheduled inspections, minor repairs, drainage service, and warranty records to keep a serviceable roof from becoming an emergency.

### [Test restoration candidacy](https://commercialroofingadvisors.com/services/roof-coatings)

Confirm moisture, adhesion, preparation, drainage, and warranty requirements before a coating is treated as the answer.

### [Compare complete roof systems](https://commercialroofingadvisors.com/commercial-roof-systems)

Compare TPO, PVC, EPDM, modified bitumen, built-up roofing, metal, SPF, and coatings as assemblies rather than product labels.

### [Carry the decision into asset management](https://commercialroofingadvisors.com/services/roof-asset-management)

Retain condition reports, repair history, warranty terms, contractor performance, and capital timing in one owner-controlled roof record.