CentiMark Corporation is a commercial and industrial roofing contractor based in Canonsburg, Pennsylvania, founded in 1968 and described on its own site as family and employee-owned, with more than 3,500 associates and over 100 offices across North America. It installs and services low-slope and steep-slope systems, runs a commercial flooring division called QuestMark, and sells one contractor-issued warranty covering both materials and workmanship.
A search for CentiMark mostly returns CentiMark’s own pages, job-review sites and social profiles. This review works from documents a commercial buyer can check: CentiMark’s published company, warranty and safety pages, Roofing Contractor magazine’s Top 100 lists, a 2023 Occupational Safety and Health Review Commission decision, a 2024 federal court opinion that quotes CentiMark’s warranty language, and the Better Business Bureau record as it stood in October 2026.
By The Roofing Brief Team. Last reviewed: October 2026.
CentiMark key numbers at a glance
CentiMark ranked second by revenue, behind Tecta America, on Roofing Contractor magazine’s 2024 and 2025 Top 100 lists. The table below gives the figures most searchers want, each tied to the document it comes from. Company-reported numbers are labeled as such, because CentiMark is privately held and does not publish audited financial statements.
| Metric | Figure | Source |
|---|---|---|
| Founded | 1968, by Edward B. Dunlap; the CentiMark name was adopted in 1987 | CentiMark About and History page |
| Headquarters | 12 Grandview Circle, Canonsburg, PA 15317 | centimark.com footer and locations page |
| Ownership | “Family and employee-owned,” with an Employee Stock Ownership Program (ESOP) | CentiMark Why CentiMark careers page |
| Workforce | More than 3,500 associates (company-reported) | CentiMark history and careers pages |
| Offices | 100+ across North America; about 70 US roofing offices, 22 US QuestMark flooring offices and 13 Canadian offices listed | CentiMark locations page, viewed October 2026 |
| Revenue | $800 million in 2020; more than $1 billion in sales for a single year by December 2021 (company-reported) | CentiMark About and History page |
| Roofing Contractor Top 100 | Ranked second in the 2024 and 2025 lists; did not submit for 2026 | Roofing Contractor, July 2024, July 2025 and July 30, 2026 |
What does CentiMark do?
CentiMark replaces, installs, repairs and maintains roofs on commercial and industrial buildings, and it does not take residential work. Its FAQ states that it is “only a commercial roofing contractor” and sends homeowners to the National Roofing Contractors Association’s contractor finder. The company also runs a commercial flooring business, QuestMark, and a Canadian division, CentiMark Ltd.
The industries CentiMark lists on its site are manufacturing and warehousing, cold storage, property management, food manufacturing, healthcare, retail, hotels and hospitality, and religious facilities. Its National Accounts program targets owners with buildings in several states, offering one account manager, priority 24/7 scheduling and a portfolio portal.
Roof systems CentiMark lists
CentiMark’s systems menu covers every major low-slope membrane plus metal, steep-slope and several “green” roof types. The company does not publish which manufacturers it buys from on these pages, so a buyer should ask which manufacturer’s product is in each proposal and whether a manufacturer warranty is offered alongside CentiMark’s own.
| Category | What CentiMark lists | Source |
|---|---|---|
| Single-ply membranes | TPO, PVC, EPDM | CentiMark Systems menu |
| Multi-ply and asphalt | Modified bitumen (Mod-Bit), built-up roofing (BUR) | CentiMark Systems menu |
| Fluid-applied and foam | Roof coatings, spray polyurethane foam (SPF) | CentiMark Systems menu |
| Metal and steep slope | Metal roofing, steep-slope roofing | CentiMark Systems menu |
| Green roofing | Cool roofs, daylighting, photovoltaics, garden roofs | CentiMark Green Roofing pages |
| Services | Inspections, reroofing, new construction, repairs, 24/7 emergency repair, preventive maintenance, roof cleaning, snow removal | CentiMark Services menu |
Lifespan and cost differences between these membranes are covered in our commercial flat roofing system comparison.
Maintenance and roof management programs
CentiMark sells maintenance in three tiers: one-time roof evaluations, an Asset Alert program and Portfolio Management for multi-building owners. Its Preventative Maintenance Program uses a checklist of more than 50 items, followed by written recommendations and scheduled repairs. CentiMark says preventive maintenance is required under the terms of its Single Source Warranty.
- Asset Alert: an inspection that sorts each roof into one of four remaining-life bands: beyond 10 years, 6 to 10 years, 2 to 5 years, or less than 2 years.
- Portfolio Management: an Asset Alert evaluation of every roof section, plus a safety audit and a roof energy audit, then budget numbers and an action plan stored in an online portal.
- Remote assessment: CentiMark says it offers drone-based “3D Virtual Site Assessment” and thermal imaging, and a visualizer called CentiVision that shows existing and proposed roof assemblies layer by layer.
- Customer portal: In a September 9, 2024 announcement, CentiMark said its MyCentiMark.com portal, launched in 2006, would be retired in January 2025, with all accounts moved to the CentiMark Digital Customer Experience (CMDCX) by January 1, 2025.
How these programs compare with typical annual contracts and repair caps is covered in our guide to the commercial roof maintenance program.
QuestMark flooring and CentiMark Ltd
QuestMark is CentiMark’s commercial flooring division, listed on the CentiMark site under “Divisions” alongside CentiMark Ltd in Canada. QuestMark’s own site offers polished concrete, epoxy and urethane coatings, resurfacers, floor patch and repair, VCT and terrazzo strip-and-wax, and traffic coatings for parking decks, and it sells floor-care products online.
CentiMark’s history page credits current CEO Tim Dunlap with expanding QuestMark to include DiamondQuest floor systems and online product sales. The locations page lists 22 US QuestMark offices. OSHA records list at least one establishment under the name “Questmark, A Division Of Centimark Corporation,” which matters when searching public safety records.
Who owns CentiMark, and how big is it?
CentiMark describes itself as “a family and employee-owned commercial roofing company” and lists an Employee Stock Ownership Program among its benefits. The company does not publish what share the ESOP holds. Edward B. Dunlap founded it in 1968 as a janitorial supply business in his basement, with $1,000 and one associate, and served as Founder and Chairman until his death on July 23, 2022.
His son, Timothy M. Dunlap, has been President since January 1, 2003 and CEO since February 15, 2021, according to the company’s leadership page. CentiMark is not owned by a private equity firm, which sets it apart from several of the largest commercial roofers on Roofing Contractor magazine’s 2026 list.
Revenue history, as reported
CentiMark’s own milestones run from $98,500 in its first year to more than $1 billion in sales for a single year by December 2021. Roofing Contractor’s 2023 Top 10 article reported that CentiMark and Tecta America each submitted revenue above $1 billion, a first for the list.
| Year | Revenue or ranking | Source |
|---|---|---|
| 1968 | $98,500 first-year revenue | CentiMark history page |
| 1974 / 1984 / 1994 | $1 million / $10 million / $100 million | CentiMark history page |
| 2002 | $247.5 million | CentiMark history page |
| 2020 | $800 million | CentiMark history page |
| 2021 | More than $1 billion in sales for the year (company: first commercial roofing and flooring contractor to do so) | CentiMark history page |
| 2023 list (2022 revenue) | CentiMark and Tecta America each above $1 billion | Roofing Contractor, July 26, 2023 |
| 2024 and 2025 lists | Second, behind Tecta America | Roofing Contractor, July 25, 2024 and July 31, 2025 |
| 2026 list | Not ranked; RC reports CentiMark “opted not to submit this year as a management decision” | Roofing Contractor, July 30, 2026 |
Roofing Brief arithmetic: growth from $247.5 million in 2002 to $800 million in 2020 works out to about 6.7% compounded per year, or 3.2 times over 18 years. CentiMark’s page describes the same period as “more than four times the revenue in a 19-year period,” so the multiple depends on which years are compared.
Where does CentiMark operate?
CentiMark’s locations page, viewed in October 2026, lists about 70 US roofing offices in roughly 40 states, including Honolulu, plus a corporate headquarters in Canonsburg, a DataCon Division office in Phoenix, 22 US QuestMark flooring offices and a Canadian directory of 13 offices from British Columbia to Nova Scotia.
The company states crew counts differently on different pages. The homepage says “over 600 commercial roofing crews,” while the National Accounts page says “over 300 crews in 100 offices.” For a single project, the useful question is how many crews the nearest branch fields and whether your job would be self-performed by CentiMark employees.
How does the CentiMark Single Source Warranty work?
CentiMark’s Single Source Warranty is a contractor-issued warranty that covers both materials and workmanship, so the owner makes one call instead of sorting out whether a leak is the manufacturer’s or the installer’s problem. CentiMark says the warranty is “backed by a multi-million dollar provision” and that length and structure are customized per building.
Three conditions in CentiMark’s published material and court record deserve a close read before signing:
- Maintenance is a condition. CentiMark’s FAQ says preventive maintenance is “part of the requirements under the terms of your warranty,” and that a regular maintenance program can extend the warranty by an additional five years.
- Transfers need approval. A February 16, 2024 opinion from the US District Court for the Northern District of Texas (1901 Gateway Holdings, LLC v. CentiMark Corporation, No. 3:21-cv-2607) quotes the warranty as “not assignable by operation of law or otherwise.” A new owner may apply for reissuance during the original term; an inspection and fees apply, and CentiMark “reserves the right, at its sole discretion, to refuse to reissue.”
- Written changes only. The sales agreement quoted in the same opinion names the “CentiMark Corporation Non-Prorated Limited Warranty” as the only warranty, with changes valid only if approved in writing by a corporate officer.
The 2024 opinion ruled on a pretrial motion: the court denied CentiMark’s motion for summary judgment without prejudice. It did not decide whether the roof was defective. Its value to a buyer is the verbatim warranty language, which may differ by system and year, so ask for the specimen warranty for your exact roof system.
| Warranty question | Why it matters | Where the answer lives |
|---|---|---|
| Is a manufacturer warranty also issued? | A manufacturer warranty may survive if the contractor relationship ends | Proposal and manufacturer warranty certificate |
| What maintenance is required, and by whom? | CentiMark says maintenance is a warranty requirement | Warranty terms and maintenance agreement |
| Can the warranty be reissued if the building sells? | Reissuance requires an application, inspection and fees, at CentiMark’s discretion | Warranty assignment clause |
| Is coverage prorated? | The quoted CentiMark form is “Non-Prorated”; confirm for your system | Warranty title and coverage section |
| What is excluded? | Ask specifically about wind above a stated speed, hail, rooftop traffic and damage by other trades | Exclusions section of the specimen warranty |
CentiMark’s safety record: what the company reports and what public records show
CentiMark publishes its own safety statistics: an incident rate of 0.99 against an industry average it gives as 2.4, and an Experience Modification Rate (EMR) of 0.39 against an industry baseline of 1.0. It also says its Safety and Risk Compliance staff report to corporate rather than branch management, at one safety professional per 33 associates. These are company-reported figures.
An EMR below 1.0 generally means a workers’ compensation claims history better than the average expected for the company’s size and trade. Ask for the EMR letter from the workers’ compensation carrier, not a figure from marketing material, because the carrier letter shows the rating year and the rating bureau.
The 2023 OSHRC fall protection decision
The most detailed public safety record is Secretary of Labor v. CentiMark Corp., OSHRC Docket No. 20-0762, decided by the Occupational Safety and Health Review Commission on March 29, 2023. The Commission affirmed a repeat citation under 29 CFR 1926.501(b)(10), the low-slope roofing fall protection rule, with a $48,195 penalty.
According to the decision, an OSHA compliance officer driving past a Pittsburgh roof replacement saw a CentiMark foreman standing near the edge of a low-slope roof section about 40 feet above the ground without fall protection, for one to three minutes on the project’s material “load day.” CentiMark argued he was making a pre-construction assessment exempt under 29 CFR 1926.500(a)(1). The Commission disagreed. The administrative law judge had vacated a second fall protection citation, and CentiMark did not contest the repeat classification or the penalty on review.
How to search OSHA records yourself
OSHA’s Establishment Search is free and lists inspections, citation types and penalties by employer name, but a large contractor’s records are split across name spellings and branch offices. Working through these steps for the branch that would run your job gives a fuller picture than any single search.
- Open OSHA’s Establishment Search at osha.gov and set a date range of at least five years.
- Search every name variant. OSHA records for this company appear under “Centimark Corporation,” “Centimark Corp.,” “Centimark Roofing System” and “Questmark, A Division Of Centimark Corporation.”
- Filter by the state or office that would run your project, since branch-level history is more relevant than a national total.
- Open each inspection and note the citation type (serious, repeat, other), the standard cited and whether the case is open or closed.
- Check the OSHRC decisions page for any contested case, which records how the citation was resolved.
- Ask the contractor to explain any citation and the corrective action taken, and compare that answer with the record.
Inspection counts alone mislead for a company with more than 100 offices. A national contractor works on more roofs, so it is inspected more often; the pattern of citation types and repeat findings tells you more than the raw number.
BBB and court records
CentiMark has several Better Business Bureau profiles, kept by different local BBBs. As viewed October 12, 2026, the profile for the Canonsburg headquarters showed CentiMark as not BBB Accredited with an A- rating. The stated reason for the rating was “Failure to respond to 2 complaint(s) filed against business.”
That profile listed 2 complaints in the prior three years, filed July 15, 2025 and December 9, 2025, both categorized as “Service or Repair Issues” and both marked “Unanswered.” A separate Omaha, Nebraska profile listed CentiMark as BBB Accredited since May 1, 2013, also rated A-. BBB itself advises weighing complaint counts against a company’s size and volume of transactions.
Federal court records include contract and warranty disputes in which CentiMark is a party, such as the 2024 Texas opinion above. Litigation is common for a contractor of this size and says little on its own; the useful part for a buyer is the contract and warranty language the court quotes.
How to vet CentiMark or any national commercial roofer
Vetting a national contractor follows the same steps as vetting a local one, with one addition: check the branch that will do your work, not only the corporate parent. Licensing, insurance and safety records are often held or tracked per state or per office.
- Confirm the license in your state. Commercial roofing licensing is set state by state. Illinois, for example, licenses roofing contractors statewide under 225 ILCS 335. Look the license up on the state board’s site.
- Get a certificate of insurance sent directly by the agent. Confirm general liability, auto, umbrella and workers’ compensation limits, and ask to be named as additional insured where your contract requires it.
- Request the carrier’s EMR letter and three years of OSHA 300A summaries. Compare them with the public OSHA record.
- Ask for the manufacturer approval for the specified system. Verify it in the manufacturer’s own contractor directory.
- Read the specimen warranty before you sign. Focus on maintenance requirements, transfer terms, exclusions and proration.
- Have the roof evaluated independently on large jobs. A third-party commercial roof inspector can confirm whether a repair, coating or replacement is the right scope.
- Get at least two competing bids on the same specification. Include one regional contractor holding the same manufacturer approval.
| Check | What to request | Independent source |
|---|---|---|
| License | State license number for the performing entity | State licensing board lookup |
| Insurance | Certificate of insurance from the agent | Call the agent or carrier listed |
| Safety | EMR letter, OSHA 300A summaries, site safety plan | OSHA Establishment Search; OSHRC decisions |
| Manufacturer approval | Certificate for the specified system | Manufacturer contractor directory |
| Warranty | Specimen warranty for the exact system | Your attorney or risk manager |
| Complaints and disputes | Explanation of any open matters | BBB profiles for HQ and local branch; state and federal court dockets |
CentiMark vs Tecta America, Nations Roof and Baker Roofing
CentiMark’s closest national peers are Tecta America, Nations Roof and Baker Roofing, all mainly commercial contractors with national account programs. The table uses each company’s own site for footprint and ownership, and Roofing Contractor’s 2026 Top 10 (published July 30, 2026) for revenue. CentiMark has no 2026 revenue figure because it did not submit.
| Company | HQ | Founded | Footprint (own site) | Ownership | RC 2026 revenue and rank | Commercial share (RC) |
|---|---|---|---|---|---|---|
| CentiMark | Canonsburg, PA | 1968 | 100+ offices, 3,500+ associates | Family and employee-owned (ESOP) | Did not submit; second in 2024 and 2025 | Not reported for 2026 |
| Tecta America | Rosemont, IL | February 2000 | 110+ locations, 5,500 roofing professionals | Private equity backed (RC) | $1.6 billion, second overall | 100% |
| Nations Roof | Mobile, AL (RC) | Operating since 2004 | 40+ locations, 100+ crews, 30,000+ projects | Private equity backed (RC) | $500 million, sixth | 98% |
| Baker Roofing | Cary, NC (RC); founded in Raleigh | 1915 | Multi-state, with a national accounts program | 100% employee-owned since July 2025 | $356 million, seventh | 90% |
Roofing Brief arithmetic on the RC 2026 figures: revenue per peak staff member is about $291,000 at Tecta America ($1.6 billion over 5,500), $400,000 at Nations Roof ($500 million over 1,250) and $342,000 at Baker Roofing ($356 million over 1,040). Differences in subcontracting, service mix and how each firm counts staff all affect this ratio, so treat it as a scale indicator only.
The wider field of national and regional firms is compared in our guide to the best commercial roofing companies.
Which type of contractor fits your project?
A national contractor like CentiMark is built for owners who want one contract, one warranty and one point of contact across many buildings. A single-building owner may get equal workmanship from a regional contractor holding the same manufacturer approval, so the decision usually turns on portfolio size and warranty structure rather than brand.
| Your situation | What to compare |
|---|---|
| Buildings in several states | National account terms from CentiMark, Tecta America and Nations Roof: response-time commitments, portal access, one rate card |
| One building, one reroof | At least two bids on the same spec, including a regional contractor with the same manufacturer approval |
| You want one warranty for labor and materials | CentiMark’s Single Source Warranty against a manufacturer system warranty: maintenance conditions, transfer rules, exclusions |
| Roof and floor work in the same facility | Whether one vendor (CentiMark with QuestMark) saves coordination, against separate specialist bids |
| Buying a building with a CentiMark roof | Apply for warranty reissuance during the original term; budget for the required inspection and fee |
| Safety is a contract requirement | Carrier EMR letters and OSHA records for the performing branch, not company-wide marketing figures |
Frequently asked questions
What does CentiMark do?
CentiMark Corporation installs, replaces, repairs and maintains roofs on commercial and industrial buildings across North America, and it does not do residential work. It lists TPO, PVC, EPDM, modified bitumen, built-up, coatings, spray foam, metal and steep-slope systems, plus 24/7 emergency repair and maintenance programs. Its QuestMark division handles commercial flooring, and CentiMark Ltd serves Canada.
Who is the owner of CentiMark?
CentiMark describes itself as a family and employee-owned company and lists an Employee Stock Ownership Program among its benefits. It does not publish the ESOP’s share. Edward B. Dunlap founded the company in 1968, and his son Timothy M. Dunlap has been President since 2003 and CEO since February 15, 2021. CentiMark is not private equity owned.
How many employees does CentiMark have?
CentiMark says it has more than 3,500 associates working from over 100 locations across North America. Its locations page, viewed in October 2026, lists about 70 US roofing offices, 22 US QuestMark flooring offices and 13 Canadian offices. Crew counts on its site vary by page, from more than 300 to more than 600 crews.
Who is the biggest roofing company in the United States?
On Roofing Contractor magazine’s 2026 Top 100, published July 30, 2026, Leaf Home ranked first with about $2.09 billion, almost all residential. Tecta America ranked second with $1.6 billion, the highest among commercial roofers that submitted. CentiMark, which RC says ranked first or second for the prior ten years, chose not to submit in 2026.
Is the CentiMark roof warranty transferable?
Not automatically. Warranty language quoted in a February 2024 federal court opinion says the CentiMark warranty is not assignable, but a new building owner may apply for reissuance during the original warranty period. An inspection and fees apply, and CentiMark may refuse at its sole discretion. Confirm the terms in the specimen warranty for your specific roof system.
Has OSHA cited CentiMark?
Yes. In OSHRC Docket No. 20-0762, decided March 29, 2023, the Occupational Safety and Health Review Commission affirmed a repeat fall protection citation against CentiMark from a Pittsburgh roof replacement, with a $48,195 penalty. CentiMark reports an EMR of 0.39. Search OSHA’s Establishment Search under each name variant to see the full inspection history for your region.
What happened to MyCentiMark.com?
CentiMark announced on September 9, 2024 that MyCentiMark.com, the customer portal it launched in 2006 for roof and floor condition data, proposals and work history, would be retired in January 2025. All accounts were to move to the CentiMark Digital Customer Experience, or CMDCX, by January 1, 2025, with account teams handling enrollment.
Sources
- CentiMark Corporation: homepage, About and History, Why CentiMark (careers), Commercial Roof Warranties, Commercial Roof Safety, Commercial Roofing FAQ, National Accounts, Roof Evaluation Tools, Preventative Maintenance and Locations pages (centimark.com), viewed October 2026.
- QuestMark commercial flooring (questmarkflooring.com), viewed October 2026.
- Roofing Contractor magazine Top 10 articles: July 26, 2023; July 25, 2024; July 31, 2025; and “RC’s Top 100: The Top 10 Roofing Contractors of 2026,” July 30, 2026.
- Occupational Safety and Health Review Commission, Secretary of Labor v. CentiMark Corp., OSHRC Docket No. 20-0762, decision of March 29, 2023.
- US District Court, Northern District of Texas, 1901 Gateway Holdings, LLC v. CentiMark Corporation, No. 3:21-cv-2607-BN, Memorandum Opinion and Order, February 16, 2024 (govinfo.gov).
- Better Business Bureau profiles for CentiMark Corporation (Canonsburg, PA and Omaha, NE), viewed October 12, 2026.
- Tecta America, Nations Roof and Baker Roofing company websites, viewed October 2026.