Roofers in Washington DC that AI assistants recommend

Katchmark Construction is named most, in 33% of 36 answers.

Roofers in Washington DC named by AI assistants, November 2026

  1. 1Katchmark Construction33%

    95%: 20 to 50%

    ChatGPT
    8%
    Claude
    0%
    Gemini
    92%
    Questions
    4 of 4
    Avg. position
    2.3

    Named in answers to

    • Who is the best roofer in Washington DC?, from Gemini
    • My roof is leaking in Washington DC. Which roofing company should I call?, from Gemini
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Gemini
    • Which roofer in Washington DC can inspect my roof after a storm?, from ChatGPT and Gemini

    Also written Katchmark Roofing

    Is this your business?
  2. 2Washington Roofing Company31%

    95%: 18 to 47%

    ChatGPT
    0%
    Claude
    92%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    1.5

    Named in answers to

    • Who is the best roofer in Washington DC?, from Claude
    • My roof is leaking in Washington DC. Which roofing company should I call?, from Claude
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Claude
    • Which roofer in Washington DC can inspect my roof after a storm?, from Claude

    Also written Washington Roofing Co.

    Is this your business?
  3. 3Capitol Roofing25%

    95%: 14 to 41%

    ChatGPT
    42%
    Claude
    33%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    1.9

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT and Claude
    • My roof is leaking in Washington DC. Which roofing company should I call?, from ChatGPT
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from ChatGPT and Claude
    • Which roofer in Washington DC can inspect my roof after a storm?, from ChatGPT

    Also written Capitol Roofing Company, Capitol Roofing & Exteriors, Capitol Roofing & Siding, Capitol Roofing Inc.

    Is this your business?
  4. 4Maggio Roofing19%

    95%: 10 to 35%

    ChatGPT
    58%
    Claude
    0%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    1.9

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT
    • My roof is leaking in Washington DC. Which roofing company should I call?, from ChatGPT
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from ChatGPT
    Is this your business?
  5. 5RoofPRO19%

    95%: 10 to 35%

    ChatGPT
    8%
    Claude
    0%
    Gemini
    50%
    Questions
    3 of 4
    Avg. position
    2.1

    Named in answers to

    • My roof is leaking in Washington DC. Which roofing company should I call?, from Gemini
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Gemini
    • Which roofer in Washington DC can inspect my roof after a storm?, from ChatGPT and Gemini
    Is this your business?
  6. 6Capitol Improvements19%

    95%: 10 to 35%

    ChatGPT
    33%
    Claude
    25%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    2.7

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT and Claude
    • My roof is leaking in Washington DC. Which roofing company should I call?, from Claude
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from ChatGPT and Claude
    • Which roofer in Washington DC can inspect my roof after a storm?, from ChatGPT

    Also written Capital Improvements, Capitol Improvement Roofing & Siding

    Is this your business?
  7. 7Long Roofing17%

    95%: 8 to 32%

    ChatGPT
    8%
    Claude
    33%
    Gemini
    8%
    Questions
    4 of 4
    Avg. position
    3.5

    Named in answers to

    • Who is the best roofer in Washington DC?, from Gemini
    • My roof is leaking in Washington DC. Which roofing company should I call?, from Claude
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Claude
    • Which roofer in Washington DC can inspect my roof after a storm?, from ChatGPT and Claude

    Also written GAF Certified - Long Roofing, GAF Certified Contractor - Long Roofing

    Is this your business?
  8. 8Magnum Roofing and Contracting14%

    95%: 6 to 29%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    42%
    Questions
    2 of 4
    Avg. position
    1.2

    Named in answers to

    • Who is the best roofer in Washington DC?, from Gemini
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Gemini

    Also written Magnum Roofing & Contracting

    Is this your business?
  9. 9Roof Masters14%

    95%: 6 to 29%

    ChatGPT
    8%
    Claude
    0%
    Gemini
    33%
    Questions
    2 of 4
    Avg. position
    2.4

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT and Gemini
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Gemini
    Is this your business?
  10. 10R.M. Banning Roofing11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    33%
    Questions
    3 of 4
    Avg. position
    1

    Named in answers to

    • Who is the best roofer in Washington DC?, from Gemini
    • My roof is leaking in Washington DC. Which roofing company should I call?, from Gemini
    • Which roofer in Washington DC can inspect my roof after a storm?, from Gemini
    Is this your business?
  11. 11District Roofing11%

    95%: 4 to 25%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    4.5

    Named in answers to

    • Who is the best roofer in Washington DC?, from Claude
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Claude
    • Which roofer in Washington DC can inspect my roof after a storm?, from Claude

    Also written District Roofing & Exteriors, District Roofing & Remodeling, GAF Certified contractor - District Roofing

    Is this your business?
  12. 12Roofers of DC8%

    95%: 3 to 22%

    ChatGPT
    8%
    Claude
    0%
    Gemini
    17%
    Questions
    3 of 4
    Avg. position
    1.3

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Gemini
    • Which roofer in Washington DC can inspect my roof after a storm?, from Gemini

    Also written Roofers of Washington DC

    Is this your business?
  13. 13Roofing & More, Inc.8%

    95%: 3 to 22%

    ChatGPT
    25%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2

    Named in answers to

    • My roof is leaking in Washington DC. Which roofing company should I call?, from ChatGPT
    • Which roofer in Washington DC can inspect my roof after a storm?, from ChatGPT
    Is this your business?
  14. 14Ruff Roofers8%

    95%: 3 to 22%

    ChatGPT
    25%
    Claude
    0%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    2.3

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT
    • My roof is leaking in Washington DC. Which roofing company should I call?, from ChatGPT
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from ChatGPT
    Is this your business?
  15. 15John's Roofing & Siding6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2

    Named in answers to

    • My roof is leaking in Washington DC. Which roofing company should I call?, from Claude
    • Which roofer in Washington DC can inspect my roof after a storm?, from Claude

    Also written John's Roofing & Siding Co.

    Is this your business?
  16. 16Roofers of Arlington6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from ChatGPT
    Is this your business?
  17. 17Potomac View Roofing6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    0%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    2.5

    Named in answers to

    • My roof is leaking in Washington DC. Which roofing company should I call?, from Gemini
    • Which roofer in Washington DC can inspect my roof after a storm?, from Gemini
    Is this your business?
  18. 18Wagner Roofing Company6%

    95%: 2 to 18%

    ChatGPT
    17%
    Claude
    0%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    2.5

    Named in answers to

    • Who is the best roofer in Washington DC?, from ChatGPT
    • My roof is leaking in Washington DC. Which roofing company should I call?, from ChatGPT
    Is this your business?
  19. 19Ortiz Roofing6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3

    Named in answers to

    • Who is the best roofer in Washington DC?, from Claude
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Claude
    Is this your business?
  20. 20Roof Hub6%

    95%: 2 to 18%

    ChatGPT
    0%
    Claude
    17%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    3.5

    Named in answers to

    • My roof is leaking in Washington DC. Which roofing company should I call?, from Claude
    • Which roofing contractor in Washington DC would you recommend for a full roof replacement?, from Claude
    Is this your business?

Open a row to see each assistant's share of its own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 36 more names came up in a single answer and are counted above but not listed.

Roofers in Washington DC: is this your field?

56different names in 36 answers, 36 of them only once. The assistants change their minds from one answer to the next.

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How the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about roofers in Washington DC, ChatGPT, Claude and Gemini named Katchmark Construction most often, in 33% of answers (its AI Recommendation Rate), then Washington Roofing Company (31%) and Capitol Roofing (25%). Across 36 answers they named 56 different businesses, 36 of them only once. Each of four buyer questions was asked three times, in English, in November 2026.

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Roofers · Washington DC

33% of answers named Katchmark Construction

Answers
36
Businesses named
56
Named only once
36
Named by 2+ assistants
7 of 20
Named again on a rerun
29%

Edition November 2026. Download the data

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What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGemini
1Maggio Roofing58%Washington Roofing Company92%Katchmark Construction92%
2Capitol Roofing42%Capitol Roofing33%RoofPRO50%
3Capitol Improvements33%Long Roofing33%Magnum Roofing and Contracting42%
4Roofing & More, Inc.25%District Roofing33%Roof Masters33%
5Ruff Roofers25%Capitol Improvements25%R.M. Banning Roofing33%

Questions about roofers in Washington DC

ChatGPT, Claude and Gemini named Katchmark Construction most often, in 33% of 36 answers, then Washington Roofing Company (31%) and Capitol Roofing (25%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

Not always. ChatGPT named Maggio Roofing most often (58% of its answers), Claude Washington Roofing Company (92%) and Gemini Katchmark Construction (92%). 7 of the 20 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 29% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for roofers, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend roofers shows what an owner can work on. Nothing can guarantee that an assistant names you.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Named by AI assistants: Roofers in Washington DC, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/roofers/washington-dc"><img src="https://aigrow.gg/badges/index/2026-11/roofers/washington-dc.svg" width="312" height="100" alt="Named by AI assistants: Roofers in Washington DC, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Who is the best roofer in Washington DC?
  2. 2My roof is leaking in Washington DC. Which roofing company should I call?
  3. 3Which roofing contractor in Washington DC would you recommend for a full roof replacement?
  4. 4Which roofer in Washington DC can inspect my roof after a storm?

How to read this page

What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in the United States. From the AI Source Map: 11 answers.

reddit.com
Read in 91% of the answers
expertise.com
Read in 82% of the answers
birdeye.com
Read in 73% of the answers

AI Visibility Index

Not on this list? See what ChatGPT says about your business

Roofers, Washington DC: see whether the assistants name you, or someone else.

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Edition November 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0