COMMERCIAL ROOFING · 50 METROS
Who are the best commercial roofing companies? What ChatGPT and Gemini name in 50 US cities
No single list is right for every city. On we asked ChatGPT and Gemini for the best commercial roofing contractors in each of the 50 largest US metros. ChatGPT named 6.6 companies per answer and Gemini 4.3, and they agreed on 11% of the names. Below is who each assistant named first in every city, with a link to both full lists where we built a city page.
Looking for the best commercial roofing companies? These are the assistants’ answers, not our ranking. Sourci has not vetted these companies; check licence, insurance and references before you hire.
AT A GLANCE
How ChatGPT and Gemini answered for commercial roofing
| Measure | Commercial roofing, 50 metros | All three trades |
|---|---|---|
| ChatGPT: companies named per answer | 6.6 | 6.8 |
| ChatGPT: own website cited | 292 of 328 (89%) | 911 of 1,021 (89%) |
| Gemini: companies named per answer | 4.3 | 4.2 |
| Gemini: own website cited | 85 of 215 (40%) | 327 of 637 (51%) |
| Contractors named, each counted once per city | 487 | 1,459 |
| Named by both assistants | 55 | 198 |
| Agreement (named by both, as a share of all named) | 11% | 14% |
| Cities with no company on both lists | 14 of 50 | 33 of 150 |
| Cities where both put the same company first | 8 of 50 | 24 of 150 |
Counted from the study’s 50 answers per assistant for this trade (150 for all three), with names matched by the rule written on every city page. Being on one assistant’s list says little about the other’s.
WHAT THEY READ
Which sources did ChatGPT cite most for commercial roofing?
Across the study’s 50 commercial roofing answers, ChatGPT cited these sources most: GAF contractor pages (33 answers), The Roofing Brief (31), ServiceAgent (24), Birdeye (18), CentiMark (17). ChatGPT cited the company’s own website for 292 of 328 (89%) of the names it gave, and Gemini for 85 of 215 (40%). A specific service page on the company’s own site was the evidence both assistants used most.
CITY BY CITY
Who ChatGPT and Gemini named first for commercial roofing, city by city
One answer per assistant per city, collected . Linked cities have a page with both full shortlists, ranks and whether each company’s own site was cited (37 of 50). “Named by both” counts the companies on both lists.
| City | ChatGPT’s first pick | Gemini’s first pick | Named by both | Same first pick |
|---|---|---|---|---|
| Commercial roofing in Atlanta, GA | Absolute Commercial Roofing | LB Roofing and Construction | 0 | No |
| Commercial roofing in Austin, TX | Kidd Roofing | Kidd Roofing | 2 | Yes |
| Baltimore, MD | Cole Roofing | Ruff Roofers | 1 | No |
| Commercial roofing in Birmingham, AL | Blair Commercial Roofing | Blair Commercial Roofing | 2 | Yes |
| Boston, MA | CentiMark Corporation | CentiMark Corporation | 1 | Yes |
| Commercial roofing in Charlotte, NC | CentiMark Corporation | TeamCraft Roofing | 0 | No |
| Commercial roofing in Chicago, IL | OPI Commercial Flat Roofing | Tecta America Illinois Roofing LLC | 0 | No |
| Commercial roofing in Cincinnati, OH | Kelley Brothers Roofing | Holland Roofing | 1 | No |
| Commercial roofing in Cleveland, OH | Cleveland Commercial Roofing, Inc. | Warren Roofing | 1 | No |
| Commercial roofing in Columbus, OH | Kalkreuth Roofing & Sheet Metal | Holland Roofing | 1 | No |
| Commercial roofing in Dallas, TX | Supreme Roofing | KPost Roofing & Waterproofing | 3 | No |
| Commercial roofing in Denver, CO | CentiMark Corporation | B&M Roofing of Colorado | 1 | No |
| Commercial roofing in Detroit, MI | ROOF Management | MacDermott Roofing | 1 | No |
| Fresno, CA | Grandmark Roofing | Grandmark Roofing | 4 | Yes |
| Commercial roofing in Grand Rapids, MI | Arrow Roofing & Supply Inc | Priority Roofing | 0 | No |
| Hartford, CT | Tecta America New England | Simon Roofing | 2 | No |
| Commercial roofing in Houston, TX | Chamberlin Roofing & Waterproofing | RISE Roofing | 1 | No |
| Commercial roofing in Indianapolis, IN | A A A Roofing Company Inc | Stay Dry Roofing | 0 | No |
| Commercial roofing in Jacksonville, FL | Advanced Roofing Inc. | Advanced Roofing Inc. | 1 | Yes |
| Commercial roofing in Kansas City, MO | Delta Innovative Services | Kaw Roofing & Sheet Metal | 2 | No |
| Commercial roofing in Las Vegas, NV | Commercial Roofers Inc. | Commercial Roofers, Inc. | 2 | Yes |
| Commercial roofing in Los Angeles, CA | Central Roofing Company | Stone Roofing Company, Inc. | 1 | No |
| Commercial roofing in Louisville, KY | Geoghegan Roofing | Commonwealth Roofing Corp. | 2 | No |
| Memphis, TN | Commercial Roofing Rana | Empire Roofing of Tennessee | 2 | No |
| Commercial roofing in Miami, FL | Advanced Roofing Inc. | Advanced Roofing Inc. | 2 | Yes |
| Commercial roofing in Milwaukee, WI | Roofed Right America LLC | F.J.A. Christiansen Roofing Co. | 2 | No |
| Commercial roofing in Minneapolis, MN | Central Roofing Company | Central Roofing Company | 2 | Yes |
| Commercial roofing in Nashville, TN | Southern Roofing Co. | MidSouth Construction LLC | 1 | No |
| Commercial roofing in New York, NY | L&M Roofing | Roman Commercial Roofing | 1 | No |
| Commercial roofing in Oklahoma City, OK | Standard Roofing Company | Elliott Roofing | 0 | No |
| Commercial roofing in Orlando, FL | Rhino Commercial Roofing | Collis Roofing | 0 | No |
| Commercial roofing in Philadelphia, PA | EDA Contractors Inc. | Loonstyn Roofing | 0 | No |
| Commercial roofing in Phoenix, AZ | CentiMark Corporation | Tecta America Arizona | 1 | No |
| Commercial roofing in Pittsburgh, PA | Burns & Scalo Roofing | Schultheis Roofing | 0 | No |
| Commercial roofing in Portland, OR | Anderson Roofing Co Inc | Fisher Roofing | 0 | No |
| Providence, RI | Chaffee Industrial Roofing | RoofMasters Inc. | 0 | No |
| Commercial roofing in Raleigh, NC | Commercial Solutions, Inc. | Roofwerks | 2 | No |
| Richmond, VA | Old Dominion Roofing & Construction | Werner Commercial Roofing | 0 | No |
| Riverside, CA | Hulsey Contracting Inc. | Roy O. Huffman Roof Company | 1 | No |
| Commercial roofing in Sacramento, CA | Watson Companies Inc. | CRC Roofing, Inc. | 0 | No |
| Salt Lake City, UT | Olympus Roofing | Shingle Pro Roofing | 1 | No |
| Commercial roofing in San Antonio, TX | CentiMark Corporation | Alexander's Roofing | 1 | No |
| Commercial roofing in San Diego, CA | Good-Men Roofing & Construction | San Diego Roofing, Inc. | 1 | No |
| San Francisco, CA | Simon Roofing | Eco Smart Roofer | 4 | No |
| San Jose, CA | All Seasons Roofing & Waterproofing | Highland Commercial Roofing | 1 | No |
| Commercial roofing in Seattle, WA | Flynn BEC LP - Seattle | Tecta America Seattle LLC | 1 | No |
| Commercial roofing in St. Louis, MO | CentiMark Corporation | Bade Roofing Co. | 1 | No |
| Commercial roofing in Tampa, FL | Tecta America West Florida Commercial Roofing | Sutter Roofing | 0 | No |
| Virginia Beach, VA | Block Roofing Corporation | TeamCraft Commercial Roofing | 1 | No |
| Washington, DC | Gordon Contractors | United Roofing | 1 | No |
FOR CONTRACTORS
Not on the list? What decides who gets named
The assistants named the companies they found clear evidence for: a page for the exact service on the company’s own site, and complete profiles on the sources above. The steps are in our guide on getting recommended by ChatGPT and Google AI, and the free AI recommendation check runs the questions for your own city.
FREE CHECK
Are you one of the commercial roofing contractors on your city’s list?
We ask ChatGPT, Google AI and Perplexity the buyer questions from our 24-question method for your trade and city and send you who gets named, whether you are one of them, and the first gaps worth fixing. Free.
Result: A Dallas commercial painter grew revenue 234% and website visitors 657% in six months of SEO and AI-search work with Sourci. The owner asked us to keep the company name private. Read the Dallas case study
BEFORE YOU HIRE
How to choose among the commercial roofing contractors the assistants name
- Ask which licence or registration the company holds for this work, and confirm it with the state or city. Licensing rules differ by city and by job size.
- Ask for a certificate of insurance that names your property, and confirm it with the insurer.
- Ask for two or three references from similar commercial jobs and call them.
- Ask which roof system they propose and whether its manufacturer warranty needs a certified installer; if it does, check the manufacturer’s own contractor list.
- Get the scope, products, schedule and warranty in writing, and compare at least two proposals on the same scope.
METHOD AND LIMITS
How these lists were collected
- One answer per assistant per city, collected : ChatGPT with web search on and a US location, and Google Gemini with Google Search grounding and a US location, collected through cloro, a third-party AI answer collection service.
- The question: “Who are the best commercial roofing contractors in [city], [state]? Give me a shortlist.”
- Answers change from day to day; either list can be different tomorrow.
- A listing here is not an endorsement by Sourci, and the order is the assistant’s, not ours.
- Full method in the 50-metro study; all rows in the study data (CSV).
FREE CHECK
Which contractors get recommended
in your city?
When a customer asks ChatGPT or Google AI who to hire, it names a few contractors. Tell us your trade and city. We send you which contractors get named, and whether you are one of them.
What you get
- We ask ChatGPT, Google AI and Perplexity the buyer questions from our 24-question method, set to your trade and city.
- We record which companies each assistant recommends or cites, and whether yours appears.
- We reply with what we found and the first gaps worth fixing.
How the free check works, with a sample result
Result: A Dallas commercial painter grew revenue 234% and website visitors 657% in six months of SEO and AI-search work with Sourci. The owner asked us to keep the company name private. Read the Dallas case study