121 siding contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Diamond Bar: MG Construction & Decks, CR Score 60/100; 5.0★ from 89 Google reviews; open 24/7.
Best for emergencies (open 24/7): Red Turtle Roofing of Fullerton, posts 24/7 hours; ranked #4 of 121.
Most-reviewed: CAT Exteriors, 348 Google reviews at 4.5★, the most of 121 ranked; ranked #31.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
121 Diamond Bar siding contractors are ranked here by CR Score, from ten published factors. 17 are open 24/7, 94 open Saturdays and 68 open Sundays, based on posted hours. The median Google rating is 4.9★ across 121 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | MG Construction & Decks | 60 | 5.0★ (89) | Los Angeles, 33 mi away | 24/7 | Overall |
| 2 | Glendora Roofing Solutions | 59 | 5.0★ (27) | Glendora, 8 mi away | Sat · Sun · Evenings | — |
| 3 | La Habra Top Roofing | 59 | 5.0★ (26) | La Habra, 10 mi away | Sat · Sun · Evenings | — |
| 4 | Red Turtle Roofing of Fullerton | 59 | 5.0★ (31) | Anaheim, 23 mi away | 24/7 | Emergencies |
| 5 | LA Decks | 58 | 4.8★ (78) | Los Angeles, 36 mi away | 24/7 | — |
| 6 | A Cut Above | 58 | 4.8★ (152) | Sherman Oaks, 36 mi away | Sat · Sun · Evenings | — |
| 7 | 24HRC | 58 | 4.8★ (41) | Irvine, 28 mi away | 24/7 | — |
| 8 | Money Wise Roofers | 58 | 5.0★ (24) | Santa Fe Springs, 16 mi away | Sat · Sun · Evenings | — |
| 9 | Sears Heating and Air Conditioning | 57 | 4.0★ (126) | Santa Fe Springs, 17 mi away | Sat · Sun · Evenings | — |
| 10 | Diego’s Quality Construction | 57 | 5.0★ (47) | Rancho Santa Margarita, 29 mi away | Sat · Sun | — |
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 89 Google reviews, listed on Google as “Siding contractor”.
Based in Glendora, 8 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Siding contractor”.
Based in La Habra, 10 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Siding contractor”.
Based in Anaheim, 23 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Siding contractor”.
Based in Los Angeles, 36 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 78 Google reviews, listed on Google as “Siding contractor”.
Based in Sherman Oaks, 36 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 152 Google reviews, listed on Google as “Siding contractor”.
Based in Irvine, 28 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 41 Google reviews, listed on Google as “Siding contractor”.
Based in Santa Fe Springs, 16 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Siding contractor”.
Based in Santa Fe Springs, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.0★ from 126 Google reviews, listed on Google as “Siding contractor”.
Based in Rancho Santa Margarita, 29 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Siding contractor”.
Based in Irvine, 25 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 199 Google reviews, listed on Google as “Siding contractor”.
Based in Los Angeles, 27 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Siding contractor”.
Based in Riverside, 21 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 151 Google reviews, listed on Google as “Siding contractor”.
Based in Los Angeles, 27 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Siding contractor”.
Based in Corona, 15 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 34 Google reviews, listed on Google as “Roofing contractor”.
Based in Los Angeles, 27 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Siding contractor”.
Based in Pomona, 4 mi away
Ranked #17 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Siding contractor”.
Based in Pomona, 5 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Siding contractor”.
Based in Rancho Cucamonga, 14 mi away
Ranked #19 because of its Google rating and trade focus: 4.4★ from 13 Google reviews, listed on Google as “Siding contractor”.
Based in Montclair, 8 mi away
Ranked #20 because of its Google rating and trade focus: 3.7★ from 12 Google reviews, listed on Google as “Siding contractor”.
Based in Los Angeles, 28 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Siding contractor”.
Based in Anaheim, 12 mi away
Ranked #22 because of its Google rating and review volume: 4.8★ from 132 Google reviews.
Based in San Dimas, 7 mi away
Ranked #23 because of its Google rating and trade focus: 3.9★ from 7 Google reviews, listed on Google as “Siding contractor”.
Based in Los Angeles, 33 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Siding contractor”.
Based in Lawndale, 33 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Siding contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 121 ranked siding contractors here; the rest are on their profiles.
20 more siding contractors 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 |
|---|---|---|
| Affordable Home Services | 5.0★ (2) | 27 mi |
| Best Construction | In Diamond Bar | |
| Better Home Builders Diamond Bar | In Diamond Bar | |
| Better Home Exteriors | 5.0★ (2) | 28 mi |
| Cal Roofing Co. | 5.0★ (2) | 20 mi |
| Castaneda Construction Company | In Diamond Bar | |
| Cooper Roofing | 4.7★ (12) | In Diamond Bar |
| Empire Sheet Metal | 5.0★ (2) | 10 mi |
| Everlast Roofing Experts | 5.0★ (1) | In Diamond Bar |
| Express Roofing and Solar of San Juan Capistrano | 5.0★ (2) | 27 mi |
| First Rate Remodeling, Inc. | 5.0★ (2) | 23 mi |
| Imperium Roofing Inc | 5.0★ (3) | In Diamond Bar |
| Inaba Denko America | 5.0★ (2) | 30 mi |
| Magical Roofers | 4.4★ (7) | In Diamond Bar |
| Morgan Termite Control | 5.0★ (2) | 9 mi |
| S Coast Roofing Construction | In Diamond Bar | |
| Sears Heating and Air Conditioning | 5.0★ (2) | 20 mi |
| Sears Heating and Air Conditioning | 2.5★ (2) | 26 mi |
| Sears Window Replacement | 3.0★ (2) | 19 mi |
| Superior Home Remodeling Diamond Bar | In Diamond Bar |
Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Siding replacement | $5,730 | $11,950 | $18,280 | Per house: typical range of customer-reported projects. US national range × 1.03 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
We scored 121 Diamond Bar siding contractors 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 Diamond Bar 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 |