559 home builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rancho Santa Margarita: Team Forss, CR Score 63/100; 5.0★ from 653 Google reviews; open 24/7.
Best for emergencies (open 24/7): Altair Irvine, posts 24/7 hours; ranked #2 of 559.
Most-reviewed: Homes Direct, 909 Google reviews at 4.9★, the most of 559 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
559 Rancho Santa Margarita home builders are ranked here by CR Score, from ten published factors. 47 are open 24/7, 300 open Saturdays and 195 open Sundays, based on posted hours. The median Google rating is 4.8★ across 559 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Team Forss | 63 | 5.0★ (653) | Temecula, 30 mi away | 24/7 | Overall |
| 2 | Altair Irvine | 59 | 4.3★ (73) | Irvine, 9 mi away | 24/7 | Emergencies |
| 3 | Homes Direct | 59 | 4.9★ (909) | Perris, 25 mi away | Sat · Sun | Most reviews |
| 4 | P.P. Fountain Valley Builders | 58 | 5.0★ (64) | Fountain Valley, 21 mi away | Sat · Sun | — |
| 5 | Georgina (Gina) Casillas - Real Estate Agent | 57 | 5.0★ (34) | Murrieta, 25 mi away | 24/7 | — |
| 6 | Silveroak by Landsea Homes | 57 | 4.6★ (18) | Lake Forest, 3 mi away | Sat · Sun | — |
| 7 | The Oaks At Portola Hills | 57 | 4.1★ (56) | Foothill Ranch, 3 mi away | Sat · Sun | — |
| 8 | Builderwell Design & Build | 56 | 5.0★ (61) | Irvine, 8 mi away | — | — |
| 9 | Great Park Neighborhoods | 56 | 4.1★ (38) | Irvine, 7 mi away | Sat · Sun | — |
| 10 | Sazbro Builders Inc | 56 | 5.0★ (26) | Irvine, 10 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 653 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 9 mi away
Ranked #2 because of its Google rating and trade focus: 4.3★ from 73 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Perris, 25 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 909 Google reviews, the most in Rancho Santa Margarita.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fountain Valley, 21 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Murrieta, 25 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Forest, 3 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 18 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Foothill Ranch, 3 mi away
Ranked #7 because of its Google rating and trade focus: 4.1★ from 56 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 8 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 7 mi away
Ranked #9 because of its Google rating and trade focus: 4.1★ from 38 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 10 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ladera Ranch, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orange, 18 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lake Forest, 5 mi away
Ranked #13 because of its Google rating and trade focus: 4.0★ from 20 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Jurupa Valley, 28 mi away
Ranked #14 because of its Google rating and trade focus: 4.5★ from 90 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newport Beach, 15 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 25 mi away
Ranked #16 because of its Google rating and trade focus: 4.6★ from 83 Google reviews, listed on Google as “Home builder”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Pomona, 29 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 22 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 8 mi away
Ranked #18 because of its Google rating and trade focus: 4.1★ from 13 Google reviews, listed on Google as “Custom home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wildomar, 21 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 23 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dana Point, 13 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 16 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Huntington Beach, 26 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Custom home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Santa Ana, 18 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “Custom home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 8 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “Custom home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Irvine, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 8 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 25 mi away
Ranked #25 because of its Google rating and trade focus: 4.3★ from 87 Google reviews, listed on Google as “Home builder”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 559 ranked home builders here; the rest are on their profiles.
20 more home builders within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
We scored 559 Rancho Santa Margarita home builders 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 23, 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 Rancho Santa Margarita 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 |