242 home builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rio Del Mar: ADU Builders Bay Area, CR Score 89/100; 5.0★ from 134 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): OCA Builders | Construction Company & ADU Contractor, posts 24/7 hours; ranked #3 of 242.
Most-reviewed: Royal Building Services, 151 Google reviews at 5.0★, the most of 242 ranked; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
242 Rio Del Mar home builders are ranked here by CR Score, from 8 published factors. 12 are open 24/7, 97 open Saturdays and 66 open Sundays, based on posted hours. The median Google rating is 5.0★ across 242 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | ADU Builders Bay Area | 89 | 5.0★ (134) | San Jose, 26 mi away | Sat · Sun | Overall |
| 2 | Room Addition & Adu Contractor San Jose | 87 | 4.9★ (137) | San Jose, 26 mi away | Sat · Sun · Evenings | — |
| 3 | OCA Builders | Construction Company & ADU Contractor | 85 | 5.0★ (36) | Santa Cruz, 5 mi away | 24/7 | Emergencies |
| 4 | Primework Construction | 85 | 5.0★ (111) | San Jose, 29 mi away | 24/7 | — |
| 5 | 408 Real Estate | 84 | 5.0★ (7) | Campbell, 21 mi away | 24/7 | — |
| 6 | OCA Builders | 84 | 5.0★ (49) | Los Gatos, 15 mi away | 24/7 | — |
| 7 | Chandani Group, Anthem Realtors & Builders | 83 | 5.0★ (5) | Saratoga, 23 mi away | 24/7 | — |
| 8 | Precision Home Builders Inc. | 83 | 5.0★ (8) | Scotts Valley, 8 mi away | — | — |
| 9 | HD Darris LLC | 82 | 5.0★ (6) | Milpitas, 23 mi away | 24/7 | — |
| 10 | The Dunes | Shea Homes | 82 | 4.5★ (28) | Marina, 22 mi away | Sat · Sun | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 134 Google reviews, listed on Google as “Custom home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Jose, 26 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 137 Google reviews, listed on Google as “Home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Cruz, 5 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 36 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Jose, 29 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 111 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Campbell, 21 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Los Gatos, 15 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 49 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Saratoga, 23 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Scotts Valley, 8 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Custom home builder”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Milpitas, 23 mi away
Ranked #9 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Marina, 22 mi away
Ranked #10 because of its Google rating and trade focus: 4.5★ from 28 Google reviews, listed on Google as “Home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Marina, 22 mi away
Ranked #11 because of its Google rating and trade focus: 4.4★ from 34 Google reviews, listed on Google as “Home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Jose, 28 mi away
Ranked #12 because of its Google rating and availability: 4.9★ from 56 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mountain View, 30 mi away
Ranked #13 because of its Google rating and review volume: 5.0★ from 151 Google reviews, the most Google reviews on this list (151).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cupertino, 25 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Home builder”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Salinas, 27 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Modular home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Jose, 23 mi away
Ranked #16 because of its Google rating and trade focus: 3.9★ from 39 Google reviews, listed on Google as “Home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Jose, 20 mi away
Ranked #17 because of its Google rating and review volume: 5.0★ from 88 Google reviews, 88 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Campbell, 23 mi away
Ranked #18 because of its Google rating and availability: 4.9★ from 27 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Palo Alto, 34 mi away
Ranked #19 because of its Google rating and review volume: 5.0★ from 56 Google reviews, 56 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hollister, 31 mi away
Ranked #20 because of its Google rating and trade focus: 4.4★ from 48 Google reviews, listed on Google as “Home builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Milpitas, 30 mi away
Ranked #21 because of its Google rating and review volume: 5.0★ from 101 Google reviews, 101 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Prunedale, 11 mi away
Ranked #22 because of its Google rating and availability: 4.9★ from 33 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Los Gatos, 19 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 39 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Marina, 22 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Home builder”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in San Jose, 26 mi away
Ranked #25 because of its Google rating and review volume: 5.0★ from 54 Google reviews, 54 Google reviews.
Based on 6 of 8 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 242 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.
| Business | Google rating | Distance |
|---|---|---|
| AMA Medina Construction | 5.0★ (2) | 19 mi |
| BAY CUSTOM TILE AND STONE | 5.0★ (2) | 14 mi |
| Boyd & Sons Construction | 3.5★ (2) | 9 mi |
| Briscoe Construction | 3.0★ (2) | 23 mi |
| Brooke Shaw Builder | 5.0★ (2) | 23 mi |
| Building & Beyond Inc | 5.0★ (2) | 21 mi |
| California Modulars | 5.0★ (2) | 19 mi |
| Chad The Builder | 5.0★ (2) | 6 mi |
| Cornett Construction | In Rio Del Mar | |
| Custom Constructions | 5.0★ (2) | 7 mi |
| DANNA BUILDERS, INC. | 5.0★ (2) | 22 mi |
| Greenview Builders Inc. | 5.0★ (2) | 19 mi |
| Harrah Construction | In Rio Del Mar | |
| Iniguez Construction | 5.0★ (2) | 11 mi |
| Manzanita Park | 4.0★ (2) | 18 mi |
| Monterey Custom Builders | 5.0★ (2) | 18 mi |
| R. Kirk Builders | 5.0★ (2) | 18 mi |
| Silver Peak Construction Group Inc. | 5.0★ (2) | 24 mi |
| Waltcraftsman | 3.0★ (2) | 4 mi |
| Winterburn Construction | 4.5★ (2) | 5 mi |
We scored 242 Rio Del Mar home builders on 8 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. Unknown factors are left out of the score, 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 Rio Del Mar data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |