# Roofsource One, Sylmar CA: Reviews

Source: Local AI Registry, https://localairegistry.com/biz/ca/sylmar/roofsource-one-san-fernando-valley-roofing-contractor-sylmar-ca. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Updated 2026-09-17.

Canonical: https://localairegistry.com/biz/ca/sylmar/roofsource-one-san-fernando-valley-roofing-contractor-sylmar-ca

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmu5k15rg0i69yeadhcsk4yby%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmu5k15rg0i69yeadhcsk4yby%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmu5k15rg0i69yeadhcsk4yby%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmu5k15rg0i69yeadhcsk4yby%2F3.jpg)
- ![Photo 5](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmu5k15rg0i69yeadhcsk4yby%2F4.jpg)


## In short

Roofsource One is a roofing contractor in Sylmar, CA. Its AI Score is 25 of 100, which is poor.

What each mark on this page means: https://localairegistry.com/methodology#marks


## Key facts

| Fact | Value |
| --- | --- |
| Type | Roofing contractor |
| Address | 14935 Ryan St, Sylmar, CA 91342, USA |
| Hours | Mon to Sun Open 24 hours |
| Phone | (818) 854-7661 |
| Rating | 5.0 across 16 reviews on Google |
| Updated | September 17, 2026 |


## All the details

Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.

| Group | Fact | Value | Mark | Evidence |
| --- | --- | --- | --- | --- |
| Location info | Address | 14935 Ryan St, Sylmar, CA 91342, USA | Confirmed | Google Business Profile |
| Location info | Description | Roofsource One provides professional roof repair in Los Angeles, Ventura, and Kern Counties for residential and commercial properties. With 20 years of roofing experience. We provide services for roof repairs, roof replacement, roof inspections, maintenance, leak detection, tile roofs, shingle roofs, and flat roofing systems. Our team focuses on honest recommendations, thorough inspections, quality workmanship, and affordable solutions that help extend the life of your roof whenever possible. PROVIDING QUALITY ROOFING SERVICES TO Homeowners HOA’s Property Management Companies Municipalities General Contractors Restoration Contractors Insurance Companies LIC C-39 #1147101 Bonded & Insured First Responder & Military discount | Confirmed | Google Business Profile |
| Location info | Hours | Mon to Sun Open 24 hours | Confirmed | Google Business Profile |
| Location info | Mondays | Open 24 hours | Confirmed | Google Business Profile |
| Location info | Name | Roofsource One - San Fernando Valley Roofing Contractor | Confirmed | Google Business Profile |
| Location info | Phone | (818) 854-7661 | Confirmed | Google Business Profile |
| Hours | Monday | Open 24 hours | Confirmed | Google Business Profile |
| Hours | Tuesday | Open 24 hours | Confirmed | Google Business Profile |
| Hours | Wednesday | Open 24 hours | Confirmed | Google Business Profile |
| Hours | Thursday | Open 24 hours | Confirmed | Google Business Profile |
| Hours | Friday | Open 24 hours | Confirmed | Google Business Profile |
| Hours | Saturday | Open 24 hours | Confirmed | Google Business Profile |
| Hours | Sunday | Open 24 hours | Confirmed | Google Business Profile |
| Services | Service | Commercial roofing | From their website | Business website |
| Services | Service | Emergency roof repair | From their website | Business website |
| Services | Service | Flat roofing systems | AI guess |  |
| Services | Service | Flat roof repair | From their website | Business website |
| Services | Service | Leak detection | AI guess |  |
| Services | Service | Residential roofing | From their website | Business website |
| Services | Service | Roof inspections | AI guess |  |
| Services | Service | Roof leak repair | From their website | Business website |
| Services | Service | Roof maintenance | AI guess |  |
| Services | Service | Roof repair | From their website | Business website |
| Services | Service | Roof replacement | From their website | Business website |
| Services | Service | Shingle roof services | AI guess |  |
| Services | Service | Tile roof services | AI guess |  |
| Links | Facebook | https://www.facebook.com/people | Confirmed | Business website |
| Links | Instagram | https://www.instagram.com/roofsourceone | Confirmed | Business website |
| Links | Website | http://roofsourceone.com/ | Confirmed | Google Business Profile |


## Services and prices

These are the 7 services Roofsource One offers, with the price where we have one and where it came from.

| Service | Price | Price mark | Price evidence | Service mark |
| --- | --- | --- | --- | --- |
| Flat roof repair |  |  |  | From their website |
| Roof repair |  |  |  | From their website |
| Residential roofing |  |  |  | From their website |
| Roof replacement |  |  |  | From their website |
| Emergency roof repair |  |  |  | From their website |
| Commercial roofing |  |  |  | From their website |
| Roof leak repair |  |  |  | From their website |


### Known for

Share your review link so AI can say what you're known for


## The team

Add your team so AI can name who works here


## Visiting Roofsource One

Address: 14935 Ryan St, Sylmar, CA 91342, USA. Phone: (818) 854-7661. Hours: Mon to Sun Open 24 hours. (Confirmed, Google Business Profile.)


### Location info from Google Business Profile

From Google Business Profile: "Roofsource One provides professional roof repair in Los Angeles, Ventura, and Kern Counties for residential and commercial properties. With 20 years of roofing experience. We provide services for roof repairs, roof replacement, roof inspections, maintenance, leak detection, tile roofs, shingle roofs, and flat roofing systems. Our team focuses on honest recommendations, thorough inspections, quality workmanship, and affordable solutions that help extend the life of your roof whenever possible. PROVIDING QUALITY ROOFING SERVICES TO Homeowners HOA’s Property Management Companies Municipalities General Contractors Restoration Contractors Insurance Companies LIC C-39 #1147101 Bonded & Insured First Responder & Military discount"


### Parking and getting in

Add your parking so AI can tell people where to park

Add how to find your door so AI can walk people in


### Nearby

| Place | Type | Distance |
| --- | --- | --- |
| Julian’s Tamales | Mexican restaurant | 6 min walk |
| Glenoaks / Tyler | Bus stop | 7 min walk |
| Glenoaks / Tyler | Transit station | 7 min walk |
| Glenoaks / Tyler | Bus stop | 7 min walk |
| Nethercutt Museum | History museum | 8 min walk |
| Los Mariscos de Sylmar | Seafood restaurant | 9 min walk |


## Reputation

5.0 average across 16 reviews: Google 16. (Confirmed, read September 17, 2026.)

 (AI guess, from 16 reviews.)


### What people like

- Professional and punctual crew
- Quality craftsmanship and attention to detail
- Efficient handling of unexpected issues
- Thorough cleanup after the job


### Press

Add a press story so AI can say who's written about you


### Awards

Add an award so AI can name it


### Directories

Get listed in directories so AI can tell you're real


## Questions people ask


### best roofing contractor in Sylmar


### paying in instalments, is that possible here


### is Sylmar expensive for this, or is it just here


### do regulars get anything here


### which one, this place or Sylmar Roofing?


### going rate for roofers locally, any idea


### how do I reach this place to sort something out?


### what time does Roofsource One in Sylmar actually open?


### address for Roofsource One, anyone have it?


### Worth the hype at Roofsource One?


### anything good on Ryan to kill time near Roofsource One?


### anyone actually happy with this place?


### walking in for a first visit, what happens


### walk ins, or is it booked solid


### last update from here was when?


## The AI Score: 25 of 100

It measures how likely AI engines are to recommend a business, and how accurately. Roofing contractors on the registry run 15 to 57. Fair starts at 45, good at 65. Roofsource One scores 25. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Roofsource One |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 0 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Poor |
| Off-property attestation | 20 | 38 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor |
| AI visibility | 14 | 7 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Poor |
| Reviews & response | 12 | 65 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good |
| Backlink & citation authority | 8 | 51 | Domain authority and editorial quality of the sources that attest to you. | Fair |
| Google Business Profile | 8 | 90 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 48 | Core Web Vitals at the 75th percentile, on a real phone. | Fair |
| Content freshness & schema | 5 | 77 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

Full method: https://localairegistry.com/methodology

How AI decides what to say about a roofing contractor: https://localairegistry.com/methodology#how-ai-decides-local-business. What to check before you choose one: https://localairegistry.com/methodology#how-to-choose-local-business


## Entity map

Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.

| Entity | Type | ID on this page | Same as | Relationship to Roofsource One |
| --- | --- | --- | --- | --- |
| Roofsource One | LocalBusiness | #business | http://roofsourceone.com/ | Subject of this page |
| Sylmar, California | City | #city |  | City Roofsource One is in |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team/steve-lee | Author of this page |


## Topical map

Where this page sits in the registry. It's one profile among the roofing contractors in Sylmar, linked to the lists and towns around it.


### Lists

- Best roofing contractors in Sylmar: https://localairegistry.com/leaderboards/ca/sylmar/roofing-contractor
- Best businesses in Sylmar: https://localairegistry.com/leaderboards/ca/sylmar


### Nearby

- /san-jose: https://localairegistry.com/leaderboards/ca/san-jose
- /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles
- /san-francisco: https://localairegistry.com/leaderboards/ca/san-francisco
- /san-diego: https://localairegistry.com/leaderboards/ca/san-diego
- /irvine: https://localairegistry.com/leaderboards/ca/irvine
- /mountain-view: https://localairegistry.com/leaderboards/ca/mountain-view


### Every list

- Every leaderboard in California: https://localairegistry.com/leaderboards/ca


## References


### Sources cited

- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJCW9xLHsJZUQR-RpzELd3hEo (accessed Sep 17, 2026)
- [2] roofsourceone.com, https://roofsourceone.com/roof-leak-repair-san-fernando-valley/ (accessed Sep 20, 2026)
- [3] roofsourceone.com, https://roofsourceone.com/emergency-roof-repair-san-fernando-valley/ (accessed Sep 20, 2026)
- [4] roofsourceone.com, https://roofsourceone.com/roof-repair-san-fernando-valley/ (accessed Sep 20, 2026)
- [5] roofsourceone.com, https://roofsourceone.com/roof-replacement-san-fernando-valley/ (accessed Sep 20, 2026)
- [6] roofsourceone.com, https://roofsourceone.com/residential-roofing-san-fernando-valley/ (accessed Sep 20, 2026)
- [7] roofsourceone.com, https://roofsourceone.com/commercial-roofing-san-fernando-valley/ (accessed Sep 20, 2026)
- [8] roofsourceone.com, https://roofsourceone.com/flat-roof-repair-san-fernando-valley/ (accessed Sep 20, 2026)
- [9] AI engine output: ChatGPT and Gemini, read by Local AI Registry on Oct 15, 2026, https://localairegistry.com/methodology (accessed Sep 20, 2026)
- [10] roofsourceone.com, http://roofsourceone.com/ (accessed Oct 15, 2026)