2,043 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Altadena: Green Ladder Roofing and Waterproofing, CR Score 66/100; 5.0★ from 258 Google reviews; open 24/7.
Best for emergencies (open 24/7): Woody's Roofing, posts 24/7 hours; ranked #2 of 2,043.
Most-reviewed: Home Renew 360 Roofing I Construction I Energy, 705 Google reviews at 4.8★, the most of 2,043 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
2,043 Altadena roofers are ranked here by CR Score, from ten published factors. 510 are open 24/7, 1,392 open Saturdays and 1,169 open Sundays, based on posted hours. The median Google rating is 5.0★ across 2,043 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Green Ladder Roofing and Waterproofing | 66 | 5.0★ (258) | Pasadena, 3 mi away | 24/7 | Overall |
| 2 | Woody's Roofing | 65 | 4.9★ (176) | South Pasadena, 6 mi away | 24/7 | Emergencies |
| 3 | All In Roofing | 64 | 5.0★ (213) | Los Angeles, 12 mi away | 24/7 | — |
| 4 | Stucco Contractor Pro | 64 | 4.9★ (229) | Pasadena, 5 mi away | Sat · Sun · Evenings | — |
| 5 | My Way Roofing | 63 | 4.9★ (352) | Calabasas, 23 mi away | 24/7 | — |
| 6 | Alpine Roofing Guys | 63 | 5.0★ (312) | Chatsworth, 26 mi away | 24/7 | — |
| 7 | NEMA Roofing Solutions | 63 | 5.0★ (248) | Calabasas, 23 mi away | 24/7 | — |
| 8 | Brilliant Roofing | 63 | 4.9★ (106) | El Monte, 8 mi away | 24/7 | — |
| 9 | Green Advisor Inc. | 63 | 5.0★ (253) | Los Angeles, 15 mi away | Sat · Sun · Evenings | — |
| 10 | Global Roofing Specialist | 62 | 5.0★ (287) | Calabasas, 29 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 258 Google reviews, listed on Google as “Roofing contractor”.
Based in South Pasadena, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 176 Google reviews, listed on Google as “Roofing contractor”.
Based in Los Angeles, 12 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 213 Google reviews, listed on Google as “Roofing contractor”.
Based in Pasadena, 5 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 229 Google reviews, listed on Google as “Roofing contractor”.
Based in Calabasas, 23 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 352 Google reviews, listed on Google as “Roofing contractor”.
Based in Chatsworth, 26 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 312 Google reviews, listed on Google as “Roofing contractor”.
Based in Calabasas, 23 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 248 Google reviews, listed on Google as “Roofing contractor”.
Based in El Monte, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 106 Google reviews, listed on Google as “Roofing contractor”.
Based in Los Angeles, 15 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 253 Google reviews, listed on Google as “Roofing contractor”.
Based in Calabasas, 29 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 287 Google reviews, listed on Google as “Roofing contractor”.
Based in Pasadena, 3 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Roofing contractor”.
Based in Pasadena, 3 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Roofing contractor”.
Based in Los Angeles, 17 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 354 Google reviews, listed on Google as “Roofing contractor”.
Based in Long Beach, 25 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 705 Google reviews, the most in Altadena.
Based in Los Angeles, 12 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Roofing contractor”.
Based in Calabasas, 22 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 140 Google reviews, listed on Google as “Roofing contractor”.
Based in Inglewood, 21 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 141 Google reviews, listed on Google as “Roofing contractor”.
Based in Pasadena, 3 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “Roofing contractor”.
Based in Alhambra, 17 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 184 Google reviews, listed on Google as “Roofing contractor”.
Based in Los Angeles, 27 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 211 Google reviews, listed on Google as “Roofing contractor”.
Based in San Marino, 5 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “Roofing contractor”.
Based in Northridge, 20 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 212 Google reviews, listed on Google as “Roofing contractor”.
Based in Los Angeles, 17 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 357 Google reviews, listed on Google as “Roofing contractor”.
Based in Alhambra, 8 mi away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 67 Google reviews, listed on Google as “Roofing contractor”.
Based in Agoura Hills, 28 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 164 Google reviews, listed on Google as “Roofing contractor”.
#1 to #25 are shown in full above. Here are #27 to #34, in CR Score order; each links to its profile. We publish the top 34 of 2,043 ranked roofers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 27 | Red Turtle Roofing of Pasadena | 61 | 5.0★ (26) | 3 mi |
| 28 | Specialist Roofing & Repair | 61 | 4.9★ (247) | 31 mi |
| 29 | Francisco's Roofing Inc. | 61 | 4.9★ (92) | 8 mi |
| 30 | Preferred Roofing Inc | 61 | 4.9★ (144) | 25 mi |
| 31 | Elevate Arc Roofing | 61 | 4.9★ (34) | 7 mi |
| 32 | ADR Roofing & Commercial Roof Repair | 61 | 5.0★ (33) | 7 mi |
| 34 | Griffith Park Roofing Services | 61 | 4.9★ (65) | 16 mi |
2 more roofers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Everguard Roofing & Construction | 5.0★ (62) | 15 mi |
| SAMUEL ROOFING INC | 5.0★ (73) | 18 mi |
Typical prices in USD: adjusted for California where a published index exists, national otherwise. Each row names its basis.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Roof replacement | $8,560 | $11,420 | $15,990 | Per project: asphalt shingles on a 1,700 sq ft home (about 2,000 sq ft of roof). US national range × 1.14 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
| Roof repair | $395 | $1,174 | $1,968 | Per repair: typical range of customer-reported jobs. US national range | October 2026 |
In California, Contractors State License Board (CSLB) licenses C-39 Roofing contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
Roofers are busiest from late spring to early fall, so booking in winter usually means shorter waits. After a big storm, get more than one quote and check the license or registration before signing.
We scored 2,043 Altadena roofers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Altadena data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |