| Bhl Plumbing | Bhl Plumbing | — | (619) 541 9226 | Other | Dulzura · San Diego County | — | — |
| Bianco Stone & Tile | Bianco Rodrigo Oliveira | — | (760) 840 1978 | Other | Escondido · San Diego County | — | — |
| Bias Construction INC | John Davis Ii Bias | — | (909) 975 1130 | GC, remodel, ADU | Alpine · San Diego County | — | — |
| Bias Plumbing | Bias Plumbing | — | (858) 883 2543 | Other | Poway · San Diego County | — | — |
| Big Ben Construction | Benjamin Walter Kauffman | aqremodeling2@gmail.com | (619) 565 4909 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Big Blue Pool Service | Ronald James Deloux | — | (619) 507 1118 | Pool | La Mesa · San Diego County | — | — |
| Big Boy Construction And Maintenance | Jie Kwang Kim | — | (619) 392 6994 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Big Build Construction INC | Ortega Filiberto | jonathan@bigbuildconstruction.com | (760) 877 2446 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Big Bully Turf Corporation | Kevin James Doherty | — | (714) 474 9053 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Big Cents Incorporated | Mark Peter Mc Elligott | — | (406) 599 5063 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Big City Air Conditioning Heating And Appliance Repair | Big City Air Conditioning Heating And Appliance Repair | — | (619) 541-8118 | HVAC | San Diego · San Diego County | — | — |
| Big City Water Damage Restoration & Reconstruction | Salazar Josue | — | (619) 972 6419 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Big Diehl Tile & Marble | Big Diehl Tile & Marble | — | (760) 801 4010 | Other | Fallbrook · San Diego County | — | — |
| Big Drip Plumbing | Big Drip Plumbing | — | (760) 207 0097 | Other | Borrego Springs · San Diego County | — | — |
| Big Head Flooring | Big Head Flooring | — | (760) 216 2984 | Other | San Marcos · San Diego County | — | — |
| Big Ideas Construction INC | David Adam Hippert | — | (619) 851 4544 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| Big O's Hardwood Flooring | Big O's Hardwood Flooring | — | (760) 638 0570 | Other | Escondido · San Diego County | — | — |
| Big Tex Electric | William Blane Stinson | — | (254) 371 6541 | Electricians | Vista · San Diego County | — | — |
| Big Trees Of California | Mark Eugene Holland | — | (858) 298 0474 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Bigfoot Shotcrete And Pumping INC DBA Bigfoot Shotcrete And | Kristopher Marvin Obert | — | (619) 715 9268 | Other | Lemon Grove · San Diego County | — | — |
| Bigger Than Before Construction INC | Thomas Earle Brooks | — | (619) 734 8093 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Bigotes Remodeling INC | Gaytan Abraham Covarrubias | bigotesremodeling@gmail.com | (760) 715 7577 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| Bigrob Construction | Robin Martin Eliya | robin@bigrobconstruction.com | (619) 754 1205 | GC, remodel, ADU | Spring Valley · San Diego County | — | — |
| Biing Jiun Lai | Biing Jiun Lai | — | (858) 232 9598 | Electricians | San Diego · San Diego County | — | — |
| Bilbro Construction Company INC | Maryory Stella Contreras | — | (760) 871 0477 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Bill Bagwell Painting | Bill Bagwell Painting | — | (760) 440 6304 | Windows, patio, painters | Encinitas · San Diego County | — | — |
| Bill Barber Construction INC | Raymond Eugene Barber | — | (760) 705 6336 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| Bill Caro Rau DBA Rau Construction | Bill Caro Rau | — | (619) 200 0434 | GC, remodel, ADU | Lemon Grove · San Diego County | — | — |
| Bill Chadwick Plumbing | Bill Chadwick Plumbing | — | (858) 842 8200 | Other | Poway · San Diego County | — | — |
| Bill Harper Plumbing | Bill Harper Plumbing | — | (619) 224 0586 | Other | San Diego · San Diego County | — | — |
| Bill Howe Heating & Air Conditioning INC | Jessica Elizabeth Groat | buildzoomsupport@blockrenovation.com | (619) 286 6348 | HVAC | San Diego · San Diego County | — | — |
| Bill Howe Plumbing INC DBA Am-pm Sewer & Drain Cleaning | William Jr Howe | — | (619) 286 6348 | Other | San Diego · San Diego County | — | — |
| Bill Howe Restoration & Flood Services INC | Haley Tina Grande | — | (619) 286 6348 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Bill Jarrett Construction | William Joseph Jarrett | — | (760) 521 5916 | GC, remodel, ADU | Vista · San Diego County | — | — |
| Bill K Gaskin Construction | Bill Kelley Gaskin | — | (619) 415 1456 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| Bill Mc Nulty Plumbing | Bill Mc Nulty Plumbing | — | (619) 262 2548 | Other | San Diego · San Diego County | — | — |
| Bill Michaels Electric INC | Bill Michael Ii Munz | — | (760) 644 3802 | Electricians | Santee · San Diego County | — | — |
| Bill Morlet Master Plumber | Bill Morlet Master Plumber | — | (951) 323 6994 | Other | Escondido · San Diego County | — | — |
| Bill Redmond Electric | William Joseph Redmond | — | (619) 843 2402 | Electricians | Ramona · San Diego County | — | — |
| Bill Watson Plumbing | Bill Watson Plumbing | — | (858) 277 9876 | Other | San Diego · San Diego County | — | — |