| Ace Interior & Construction | Hur Chul | — | (213) 800 3245 | GC, remodel, ADU | Hacienda Heights · Los Angeles County | — | — |
| Ace Iron Works | Ace Iron Works | — | (909) 465 0010 | Other | Diamond Bar · Los Angeles County | — | — |
| Ace James Welding & Fabrication INC | Justin Andrew Cisneros | — | (661) 335 2818 | Other | Vista · San Diego County | — | — |
| Ace Landscaping | Jose Antonio Arredondo | info@ace-landscaping.com | (647) 617-4020 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Ace Lock & Key | Julie Hope Hastings | — | (951) 674 1283 | Other | Fallbrook · San Diego County | — | — |
| Ace Locksmith Company | Joseph Yaukwai Lam | — | (510) 835 9266 | Other | Oakland · Alameda County | — | — |
| Ace Los Angeles Roofing | Ace Los Angeles Roofing | — | (424) 550-2350 | Other roofers | Los Angeles · Los Angeles County | — | — |
| Ace Low Voltage | Rafael Rodriguez | — | (714) 369 5411 | Other | Anaheim · Orange County | — | — |
| Ace Low Voltage Systems | Ace Low Voltage Systems | — | (707) 478 0844 | Other | Shasta Lake · Shasta County | — | — |
| Ace Management Company | Abraham Carleton Elliott | ace@ace-management.com | (949) 350 7772 | Electricians | Costa Mesa · Orange County | — | — |
| Ace Masonry INC | Shayne Edmund Cleavenger | — | (619) 339 6097 | Other | El Cajon · San Diego County | — | — |
| Ace Mechanical | Ace Mechanical | info@ace-mechanical.com | (408) 430 9713 | HVAC | Gilroy · Santa Clara County | — | — |
| Ace Mechanical | Ace Mechanical | info@ace-mechanical.com | (707) 513 6510 | HVAC | Ukiah · Mendocino County | — | — |
| Ace Mirror And Glass | Zoeb Noordin | — | (949) 588 1187 | Windows, patio, painters | Laguna Hills · Orange County | — | — |
| Ace Of Concrete | Ace Of Concrete | — | (209) 564 6021 | Other | Modesto · Stanislaus County | — | — |
| Ace Of Drains INC | Rafee Talal Kinaian | — | (818) 478 0018 | Other | Glendale · Los Angeles County | — | — |
| Ace Of Floors | Ace Of Floors | — | (323) 793 3023 | Other | Los Angeles · Los Angeles County | — | — |
| Ace Of Painters | Ace Of Painters | — | (619) 247 7267 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Ace Of Trades Construction INC | Dennis Roy Aceves | — | (909) 910 1998 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Ace Of Trades INC | Efrain Alberto Jr Echiveste | — | (310) 947 4288 | GC, remodel, ADU | Torrance · Los Angeles County | — | — |
| Ace Ornamental | Ace Ornamental | — | (909) 629 0530 | Other | Pomona · Los Angeles County | — | — |
| Ace Overhead Door & Gate | Ace Overhead Door & Gate | — | (760) 333 0125 | Other | Morongo Valley · San Bernardino County | — | — |
| Ace Painting | Justin Hs Kim | john@ace-painting.com | (714) 447 9900 | GC, remodel, ADU | Fullerton · Orange County | — | — |
| Ace Painting | Ace Painting | — | (714) 222 0338 | Windows, patio, painters | Stanton · Orange County | — | — |
| Ace Painting | Ace Painting | john@ace-painting.com | (559) 760 2636 | Windows, patio, painters | Madera · Madera County | — | — |
| Ace Painting And Decorating | Ace Painting And Decorating | — | (916) 240 1349 | Windows, patio, painters | North Highlands · Sacramento County | — | — |
| Ace Painting Contractor | Ace Painting Contractor | — | (949) 357 9257 | Windows, patio, painters | Mission Viejo · Orange County | — | — |
| Ace Painting INC | Foon Toy Hui | john@ace-painting.com | (415) 860 7139 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Ace Painting Service INC DBA Ace Painting | Daniel Ralph Aceves | — | (925) 584 5285 | Windows, patio, painters | Brentwood · Contra Costa County | — | — |
| Ace Paperhanging | Ace Paperhanging | — | (916) 337 6095 | Windows, patio, painters | Rancho Cordova · Sacramento County | — | — |
| Ace Patio INC | William Robert Garrett | sdraider@gmail.com | (619) 606 2899 | Other | San Diego · San Diego County | — | — |
| Ace Pelizon Plumbing | John Norman Pellizzon | — | (626) 331 0701 | HVAC | Covina · Los Angeles County | — | — |
| Ace Petroleum Services | Arslan Ahmad Khan | — | (310) 341 5139 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Ace Plastering | Ace Plastering | — | (831) 596 4290 | Other | Salinas · Monterey County | — | — |
| Ace Plumbing | Ace Plumbing | info@aceplumbing.com | (916) 455-4548 | Other | Ventura · Ventura County | — | — |
| Ace Plumbing | Ace Plumbing | service_request@aceplumbing.com | (916) 455-4548 | HVAC | Fresno · Fresno County | — | — |
| Ace Plumbing & Drain | Ace Plumbing & Drain | — | (562) 786 7679 | Other | Whittier · Los Angeles County | — | — |
| Ace Plumbing & Rooter | Jonathan Neil Millington | — | (415) 824 6444 | HVAC | San Francisco · San Francisco County | — | — |
| Ace Plumbing Co | Han Kyuhan | — | (909) 973 0227 | GC, remodel, ADU | Diamond Bar · Los Angeles County | — | — |
| Ace Plumbing Pro | Ace Plumbing Pro | info@aceplumbingpro.com | (408) 318 2109 | Other | San Jose · Santa Clara County | — | — |