Public price pages put spray foam at about $2–$5 per square foot installed, with a typical job around $4,100. San Diego County has 95 licensed insulation firms, and related City of San Diego permits took a median 114 days from application to issue.
Full San Diego guide, price guide and questions to ask →
Few insulation-only permits; small sample.
| Firm | CSLB # | Classes | City | Yrs licensed | Related permits 2026 | Median permit value | All City permits 2026 |
|---|---|---|---|---|---|---|---|
| PACIFIC BUILDING GROUP | 502376 | B|C-2|C-9 | San Diego | 39.9 | 4 | $529,776 | 34 |
| DEMPSEY CONSTRUCTION INC | 945467 | B|C-2|C-5|C-8|C-9|D28|D50 | Carlsbad | 16.5 | 0 | — | 28 |
| B S D BUILDERS INC | 879719 | A|B|C-2|C-4|C16|C20|C36|C43 | San Diego | 20.3 | 0 | — | 6 |
| SYNERGY COMPANIES | 835016 | ASB|B|C-2|C10|C17|C20|C36|C46 | Oceanside | 22.5 | 0 | — | 4 |
| UNIVERSITY MECHANICAL & ENGINEERING CONTRACTORS INC | 460213 | A|B|C-2|C-4|C10|C16|C20|C34|C36|C38|C43|C55 | El Cajon | 42.2 | 0 | — | 1 |
| HULETT ELECTRIC CO | 194675 | B|C-2|C10 | Ramona | 66.2 | 0 | — | 0 |
| SPRING VALLEY INSULATION CONTRACTORS | 202032 | C-2|D24 | Spring Valley | 65.3 | 0 | — | 0 |
| TRI-COUNTY INSULATION COMPANY INC | 269753 | C-2 | El Cajon | 55.3 | 0 | — | 0 |
| ECO SERVICES | 290497 | B|C-2|C10|C20|C36|D24|D28|D35|D65 | San Diego | 52.8 | 0 | — | 0 |
| M V W GENERAL CONTRACTOR | 292907 | B|C-2|C47 | Escondido | 52.5 | 0 | — | 0 |
| JOHNSON FINCH & MCCLURE CONSTRUCTION INC | 392277 | B|C-2|C-9|C28|C35|D16|D28 | Lakeside | 46.2 | 0 | — | 0 |
| GRIFFIS DARYL ACOUSTICS INC | 402601 | C-2|D34 | San Diego | 45.5 | 0 | — | 0 |
| BURCH CONSTRUCTION COMPANY INC | 431673 | B|C-2|C-9|C35 | Ramona | 43.9 | 0 | — | 0 |
| STANDARD DRYWALL INC | 444328 | B|C-2|C-9|C35 | Lakeside | 43.2 | 0 | — | 0 |
| CONROY'S SUSPENDED CEILINGS | 469828 | C-2|D50 | Lakeside | 41.6 | 0 | — | 0 |
| J & L INSULATION INC | 472996 | C-2 | Lakeside | 41.5 | 0 | — | 0 |
| PARRA CONSTRUCTION SERVICES | 507732 | B|C-2 | La Mesa | 39.6 | 0 | — | 0 |
| ACOUSTICS & BUILDING INTERIORS INC | 561663 | C-2|C-9 | Poway | 37.6 | 0 | — | 0 |
| GREAT WESTERN DRYWALL | 569654 | C-2|C-9 | San Diego | 37.4 | 0 | — | 0 |
| J AND M INTERIOR SPECIALTIES INC | 572769 | C-2|C-6|C-9|D12|D34 | El Cajon | 37.3 | 0 | — | 0 |
| UNIVERSITY INDUSTRIAL SERVICES | 583838 | A|B|C-2|C-4|C10|C16|C20|C34|C36|C38|C43|C55 | El Cajon | 36.8 | 0 | — | 0 |
| SPIRA-LOC | 583829 | A|B|C-2|C-4|C10|C16|C20|C34|C36|C38|C43|C55|D62 | El Cajon | 36.8 | 0 | — | 0 |
| GARCIA'S PRECISION ACOUSTICS INC | 605515 | C-2 | San Marcos | 36.0 | 0 | — | 0 |
| SEASIDE SPECIALTY CONSTRUCTION INC | 631072 | B|C-2 | Carlsbad | 35.0 | 0 | — | 0 |
| FRANE CEILING SERVICES | 674034 | C-2 | Poway | 33.3 | 0 | — | 0 |
| D I A S CONSTRUCTION | 682098 | A|B|C-2|C-7|C10|C33|C36|C51|C54 | San Diego | 32.8 | 0 | — | 0 |
| A & P DRYWALL INC | 733780 | C-2|C-9|C35 | Escondido | 29.6 | 0 | — | 0 |
| HOFSTEE DRYWALL | 766538 | C-2|C-9 | Alpine | 27.2 | 0 | — | 0 |
| ACOUSTICWORKS INC | 775459 | C-2 | Escondido | 26.6 | 0 | — | 0 |
| C M FIRESTOP INC | 775289 | C-2 | San Diego | 26.6 | 0 | — | 0 |
| HOBBS E L INC | 777073 | B|C-2|C-9|C35 | Lakeside | 26.5 | 0 | — | 0 |
| ADVANCED ACOUSTIC CONTRACTORS INC | 797369 | B|C-2|C-9 | San Diego | 25.3 | 0 | — | 0 |
| SOUTHERN CALIFORNIA ACOUSTICS | 798165 | C-2 | Escondido | 25.2 | 0 | — | 0 |
| CAYA R E | 801479 | B|C-2|C-9|C35 | Lakeside | 24.9 | 0 | — | 0 |
| SYNERGY ENTERPRISES INC | 804759 | ASB|B|C-2|C10|C17|C20|C22|D63 | Carlsbad | 24.6 | 0 | — | 0 |
| PACIFIC RIM MECHANICAL CONTRACTORS INC | 814462 | B|C-2|C-4|C20|C36 | San Diego | 23.9 | 0 | — | 0 |
| PRO WALL LATH & PLASTER INC | 818219 | C-2|C-9|C33|C35 | Escondido | 23.6 | 0 | — | 0 |
| CUSTOMDESIGN CONST | 828702 | B|C-2 | Vista | 22.8 | 0 | — | 0 |
| COOL-ROOF SYSTEMS | 853763 | C-2|C39 | San Marcos | 21.7 | 0 | — | 0 |
| EMPIRE INSULATION INC | 860072 | B|C-2|D24|D28|D34|D65 | San Diego | 21.4 | 0 | — | 0 |
| PDC MANAGEMENT INC | 863638 | A|B|C-2 | La Jolla | 21.1 | 0 | — | 0 |
| C M S INTERIORS INC | 871262 | C-2|D24|D28|D34 | San Diego | 20.7 | 0 | — | 0 |
| FINEST CITY ACOUSTICS INC | 882817 | C-2|D12 | San Diego | 20.2 | 0 | — | 0 |
| ALEXANDER ACOUSTICS | 883917 | C-2 | San Diego | 20.1 | 0 | — | 0 |
| K T CONSTRUCTION INC | 892715 | B|C-2|C-9|D24 | Lemon Grove | 19.6 | 0 | — | 0 |
| EARP INSULATION | 916015 | C-2 | El Cajon | 18.4 | 0 | — | 0 |
| RUSSELL INTERIOR SYSTEMS | 916473 | C-2|C-9 | Escondido | 18.4 | 0 | — | 0 |
| ABS ACOUSTICS | 931587 | C-2 | San Diego | 17.5 | 0 | — | 0 |
| CEILING CITY INC | 932596 | B|C-2 | Escondido | 17.4 | 0 | — | 0 |
| CLANCY CONTRACTING SERVICES INC | 932968 | ASB|B|C-2|C21|C22|D06|D63|D64|HAZ | Santee | 17.4 | 0 | — | 0 |
| M V W GENERAL CONTRACTORS INC | 945261 | B|C-2 | Escondido | 16.5 | 0 | — | 0 |
| SYNERGY EE INC | 945168 | ASB|B|C-2|C10|C17|C20|C22|C36|C46 | Carlsbad | 16.5 | 0 | — | 0 |
| P L P ENTERPRISES INC | 953698 | C-2|C-9|C33|C35 | Escondido | 16.0 | 0 | — | 0 |
| CALIFORNIA MECHANICAL INSULATION | 965569 | C-2 | El Cajon | 15.1 | 0 | — | 0 |
| OMEGA DRYWALL CONSTRUCTION INC | 969461 | C-2|C-9 | San Marcos | 14.7 | 0 | — | 0 |
| AMERICAN ACOUSTICS | 974392 | C-2 | San Diego | 14.3 | 0 | — | 0 |
| CAL COM INSULATION INC | 977613 | C-2 | Oceanside | 14.0 | 0 | — | 0 |
| BRADY SOCAL INCORPORATED | 980003 | B|C-2|C-9|C33|C35|D12|D24|D28|D31|D34 | La Mesa | 13.8 | 0 | — | 0 |
| EMPIRE SPECIALTIES | 991212 | B|C-2|C-9|C20|C36|D35|D65 | San Diego | 12.6 | 0 | — | 0 |
| CALIFORNIA FIRE STOP INC | 991135 | C-2|D12 | Carlsbad | 12.6 | 0 | — | 0 |
| SPECIALIZED SYSTEMS & INSULATION INC | 992121 | C-2 | Spring Valley | 12.5 | 0 | — | 0 |
| DUDLEY INSULATION INC | 992550 | C-2 | San Diego | 12.5 | 0 | — | 0 |
| CR SPECIALTY INSULATION INC | 1005200 | C-2|D12 | San Diego | 11.3 | 0 | — | 0 |
| SWPLUMBINC | 1008750 | C-2|C-4|C36 | Alpine | 10.9 | 0 | — | 0 |
| TOWNE DRYWALL INC | 1020340 | C-2|C-9 | El Cajon | 9.9 | 0 | — | 0 |
| ENERGY EFFICIENCY AC | 1026683 | ASB|B|C-2|C10|C17|C20 | Carlsbad | 9.4 | 0 | — | 0 |
| J C INSULATION | 1027215 | C-2 | Escondido | 9.4 | 0 | — | 0 |
| SOUNDPROOF SAN DIEGO INC | 1028422 | B|C-2 | San Diego | 9.3 | 0 | — | 0 |
| SPEC 7 LLC | 1028492 | C-2 | Lakeside | 9.3 | 0 | — | 0 |
| WESTERN INTERIORS INC | 1031637 | B|C-2 | Escondido | 9.0 | 0 | — | 0 |
| ATTIC PROJECTS LLC | 1035247 | B|C-2|C10 | San Diego | 8.7 | 0 | — | 0 |
| C R INSULATION INC | 1038077 | C-2|D12 | San Marcos | 8.5 | 0 | — | 0 |
| ISC | 1039696 | C-2|D12 | Carlsbad | 8.4 | 0 | — | 0 |
| PARRA BUILDING CONSULTANTS INC | 1042688 | B|C-2|C39 | Lakeside | 8.2 | 0 | — | 0 |
| BARRE INSULATION INC | 1054149 | C-2 | Spring Valley | 7.4 | 0 | — | 0 |
| BRADY-STANDARD | 1057462 | B|C-2|C-9|C33|C35 | Lakeside | 7.1 | 0 | — | 0 |
| BLOC CONSTRUCTION INC | 1059540 | B|C-2|D50 | San Diego | 7.0 | 0 | — | 0 |
| SPECIALTY ACOUSTICS INC | 1059778 | C-2 | San Diego | 7.0 | 0 | — | 0 |
| ATTIC ADVISOR | 1067298 | B|C-2 | Carlsbad | 6.2 | 0 | — | 0 |
| JL DRYWALL | 1069832 | C-2|C-9 | Chula Vista | 6.0 | 0 | — | 0 |
| MICROGRID BUILDERS LLC | 1076848 | B|C-2 | San Diego | 5.3 | 0 | — | 0 |
| A & O INSULATION INC | 1082870 | C-2 | National City | 5.0 | 0 | — | 0 |
| BL ATTIC PROFESSIONAL INC | 1082717 | C-2 | Santee | 5.0 | 0 | — | 0 |
| JERICO FIRESTOPPING | 1089078 | C-2|D12 | San Diego | 4.6 | 0 | — | 0 |
| BSC-NEVELL JV LLC | 1098599 | C-2|C-9|C35 | El Cajon | 3.9 | 0 | — | 0 |
| CMM CONTRACTING INC | 1099678 | B|C-2 | Oceanside | 3.8 | 0 | — | 0 |
| CALIFORNIA ATTIC & BUILD INC | 1102807 | B|C-2 | San Diego | 3.6 | 0 | — | 0 |
| SAFEGUARD MECHANICAL INSULATION | 1105448 | C-2|D64 | San Diego | 3.4 | 0 | — | 0 |
| R J I ACOUSTICS | 1108320 | C-2 | San Diego | 3.2 | 0 | — | 0 |
| INTEGRITY SPECIALTY CONTRACTING LLC | 1109416 | C-2 | Alpine | 3.1 | 0 | — | 0 |
| SMART ROOFING AND RESTORATION | 1117548 | B|C-2|C39 | San Diego | 2.6 | 0 | — | 0 |
| ADVACNED INSULATION SYSTEM | 1123381 | B|C-2 | San Diego | 2.3 | 0 | — | 0 |
| THERMAL ADVANTAGE OF CALIFORNIA INC | 1126284 | C-2 | Vista | 2.1 | 0 | — | 0 |
| ATTICSHIELD | 1138021 | B|C-2 | Escondido | 1.4 | 0 | — | 0 |
| MOXIE INSULATION SERVICES LLC | 1148964 | C-2 | San Diego | 0.8 | 0 | — | 0 |
Data: CSLB public license master (San Diego County, pulled Oct 16 2026); City of San Diego permits issued 2026 (data.sandiego.gov). Permit valuations are what owners declare to the City, not final invoices.