Seismic retrofit contractors in Los Angeles

168 licensed contractors, the ones with the most seismic retrofit jobs first. City permits, January 2020 to May 2023.

Rank	Contractor	Jobs	Typical job	Most work in	Contact
1	Optimum Seismic Inc Vernon, licensed 10 years	593	$40,000	90025, 90008	Call (323) 605-0000
2	American Retrofitters Corp Van Nuys, licensed 10 years	347	$30,000	90025, 90038	Call (844) 527-3876
3	Titan Contracting Services Inc North Hollywood, licensed 14 years	304	$50,000	90034, 90025	Visit website
4	Retrofit 1 Tarzana, licensed 11 years	281	$40,000	90027, 90034	Visit website
5	Cal - Quake Construction Inc Los Angeles, licensed 27 years	271	$45,000	90034, 90008	Call (323) 931-2969
6	Alpha Structural Inc Sunland, licensed 33 years	240	$21,000	90710, 90026	Visit website
7	Sks Construction Van Nuys, licensed 30 years	240	$30,000	91356, 90034	Visit website
8	Quakestrong Los Angeles, licensed 8 years	108	$40,000	90034, 90035	Visit website
9	Weinstein Construction Corporation Van Nuys, licensed 35 years	100	$40,000	90025, 90034	Visit website
10	Biayna Corp Sunland, licensed 12 years	94	$50,000	90034, 91303	Visit website
11	Zebra Construction Inc Los Angeles, licensed 25 years	94	$35,000	91405, 90035	Call (510) 858-8818
12	Ces4 Construction Tarzana, licensed 8 years	91	$40,000	91342, 91605	Visit website
13	One Stop Retrofit Tarzana, licensed 9 years	87	$45,000	90272, 91311	Visit website
14	Sturdy Builds Inc Woodland Hills, licensed 11 years	46	$40,000	90038, 91324	Visit website
15	Rigid Design & Construction Inc Encino, licensed 16 years	43	$60,000	91402, 90025	Call (800) 966-7976
16	Retrocal Sherman Oaks, licensed 13 years	42	$60,000	91356, 91403	Visit website
17	A M A Construction Services Inc Covina, licensed 22 years	41	$40,000	90034, 91405	Call (626) 859-0222
18	Simzee Construction & Development Inc Van Nuys, licensed 18 years	40	$50,000	90034, 90025	Visit website
19	Vuoso and Sons Construction Inc San Pedro, licensed 28 years	40	$30,000	90731, 90732	Call (310) 831-5692
20	Ariel Muller Los Angeles, licensed 9 years	39	$45,000	90035, 90034	Call (323) 630-3180
21	Courteous Construction Co Inc Glendale, licensed 37 years	39	$45,000	90007, 90034	Visit website
22	Julian Construction Inc Los Angeles, licensed 26 years	39	$30,000	90034, 90008	Call (323) 733-3377
23	National Retrofit Service Inc La Canada Flintridge, licensed 6 years	38	$45,000	90004, 90032	Call (323) 300-6630
24	Basseri Engineering & Construction Los Angeles, licensed 30 years	37	$47,500	90034, 90035	Call (310) 431-4560
25	Los Angeles Retrofit & Construction Inc Encino, licensed 9 years	37	$40,000	90004, 90019	Call (818) 635-4757
26	Procon Builders Inc Chatsworth, licensed 14 years	37	$60,000	90034, 90066	Call (310) 384-5575
27	Lupu Iancu Los Angeles, licensed 37 years	36	$40,000	91423, 90025	Call (323) 625-2979
28	S F T Construction Corp San Francisco, licensed 11 years	36	$40,000	90008, 90020	Call (415) 707-1046
29	H Z S Construction Santa Ana, licensed 8 years	35	$60,000	90034, 90025	Call (949) 415-9556
30	Xebec Construction Santa Monica, licensed 34 years	35	$69,750	90034, 90025	Visit website
31	After Before Creations Inc Burbank, licensed 20 years	32	$28,000	90034, 90026	Call (323) 663-4841
32	J&c Retrofit Construction Inc Los Angeles, licensed 8 years	31	$20,000	90043, 91316	Visit website
33	Ace Construction Inc North Hollywood, licensed 24 years	29	$45,000	91402, 91343	Call (818) 759-5608
34	L A Retrofit Inc Santa Monica, licensed 8 years	29	$60,000	90501, 91405	Call (213) 713-3236
35	Omega Structural Inc Los Angeles, licensed 12 years	29	$40,000	90018, 90008	Visit website
36	Action Construction Company North Hollywood, licensed 42 years	27	$30,000	90034, 90043	Call (707) 953-2869
37	Par Construction Inc Los Angeles, licensed 13 years	27	$40,000	91344, 90020	Visit website
38	Henry Rob Construction Newhall, licensed 39 years	26	$50,000	90027, 91423	Call (818) 314-6610
39	Courtesy General Inc Burbank, licensed 11 years	25	$20,000	91367, 91602	Call (818) 955-5175
40	Sinai Construction Los Angeles, licensed 8 years	25	$30,000	90025, 90019	Visit website
41	J N N General Construction Inc Van Nuys, licensed 9 years	24	$120,000	91405, 91402	Call (818) 277-3082
42	Cha Kyungmin Los Angeles, licensed 10 years	23	$50,000	90005, 90012	Call (213) 505-4532
43	Mae Cm Services Los Angeles, licensed 20 years	22	$40,000	90035, 90038	Visit website
44	Viera Design & Construction Covina, licensed 14 years	22	$35,000	90026, 90016	Call (626) 705-3332
45	Decoma Structural Industries Inc Torrance, licensed 28 years	21	$30,000	90731, 91423	Call (310) 782-9100
46	Golden Retrofit Encino Encino, licensed 8 years	20	$4,000	90026, 90035	Visit website
47	Saunders Construction Inc Costa Mesa, licensed 35 years	20	$62,500	91402, 91343	Call (949) 646-0034
48	Ark Construction Co Los Angeles, licensed 41 years	19	$42,500	90019, 90044	Call (323) 930-0623
49	Socal Quake Calabasas, licensed 37 years	19	$37,500	90064, 91406	Visit website
50	E G X Inc Los Angeles, licensed 32 years	17	$60,000	90034, 90048	Call (310) 490-7430
51	Lockwood Builders Inc Beverly Hills, licensed 16 years	17	$40,000	90034, 90038	Visit website
52	Misong Corporation Los Angeles, licensed 28 years	17	$40,000	90247, 90005	Call (213) 388-0558
53	Studio Ruben Coronado Builders Los Angeles, licensed 23 years	17	$60,000	91303, 90027	Call (213) 909-3723
54	California Foundation Works Inc Los Angeles, licensed 14 years	16	$3,500	90031, 90026	Visit website
55	Extreme Home Builders North Hollywood, licensed 17 years	16	$46,875	91306, 90034	Call (818) 319-5057
56	Global Builders Inc Santa Ana, licensed 8 years	16	$130,000	90046, 90004	Visit website
57	L C Construction Los Angeles, licensed 22 years	16	$27,200	90042, 90032	Call (323) 254-8800
58	Seismic Retrofit Specialists Culver City, licensed 60 years	16	$45,000	91303, 91411	Call (310) 827-3873
59	W S Construction Co Cerritos, licensed 39 years	15	$60,000	90291, 90019	Call (562) 260-4287
60	Zdx Industries Inc Santa Monica, licensed 30 years	15	$45,000	91306, 91303	Call (310) 844-6560
61	Caf Construction LLC Los Angeles, licensed 9 years	14	$40,000	90049, 90035	Call (310) 383-7311
62	Elrom Construction Woodland Hills, licensed 37 years	14	$72,500	90049, 91403	Visit website
63	Midwest Construction Inglewood, licensed 16 years	14	$60,000	90033, 90025	Call (610) 968-4078
64	Brytin Construction Simi Valley, licensed 6 years	13	$50,000	90032, 91335	Call (310) 633-3987
65	Cedar Construction & Development Inc Los Angeles, licensed 37 years	13	$50,000	90034, 90064	Call (310) 946-0044
66	Dotz Inc Irvine, licensed 9 years	13	$30,000	91405, 91402	Call (424) 278-8008
67	Nad Construction Co Encino, licensed 36 years	13	$37,500	90025, 90020	Call (818) 965-9800
68	Neptune Construction & Remodeling Inc North Hollywood, licensed 19 years	13	$30,000	90028, 90034	Call (818) 509-1508
69	Quality Retro Construction North Hills, licensed 9 years	13	$40,000	91401, 91605	Call (818) 613-5848
70	Parthenon Structures Inc La Crescenta, licensed 7 years	12	$45,000	90018, 91606	Visit website
71	R L G Construction Los Angeles, licensed 2 years	11	$50,000	90034, 90044	Call (323) 899-8475
72	Moraga Builders and Design Panorama, licensed 37 years	10	$55,000	91343, 91402	Call (818) 402-2290
73	One Creative Group Inc Studio City, licensed 35 years	10	$60,000	91604, 90048	Call (800) 468-7381
74	S N B Contractors Encino, licensed 3 years	10	$45,000	91423, 90027	Call (818) 903-0351
75	Saddick Construction Company Inc Glendale, licensed 28 years	10	$60,000	90044, 90011	Call (818) 219-9000
76	Soft Story Pros Los Angeles, licensed 9 years	10	$25,000	90049, 90046	Call (310) 880-6736
77	Aca Construction Group Inc the Los Angeles, licensed 6 years	9	$30,000	90024	Call (310) 922-2890
78	Construction Los Angeles, licensed 5 years	9	$20,000	91601, 91324	Call (424) 355-3525
79	Interserve Construction Corp Los Angeles, licensed 14 years	9	$47,500	90035, 91405	Call (323) 852-1940
80	Town & Country Builder Marina Del Rey, licensed 43 years	9	$50,000	90025, 90272	Call (310) 345-6736
81	Tri-county Retrofit Inc Covina, licensed 8 years	9	$50,000	90034, 91601	Call (818) 731-2285
82	A R M Builders Inc Los Angeles, licensed 18 years	8	$60,000	91602, 91335	Visit website
83	Advance Construction Group Inc Sherman Oaks, licensed 35 years	8	$40,000	90067, 90046	Call (818) 257-0512
84	B S M LLC Van Nuys, licensed 5 years	8	$47,500	91411, 90006	Call (818) 869-9880
85	Brambilla Marco Giovanni Glendale, licensed 38 years	8	$40,000	90034, 90025	Call (747) 240-6200
86	Dh Remodel Services Los Angeles, licensed 9 years	8	$55,000	90038, 90020	Call (323) 201-7052
87	Encon Technologies Inc Santa Fe Springs, licensed 28 years	8	$70,000	90027, 91306	Call (562) 777-2200
88	Home Smart Remodeling Inc Encino, licensed 9 years	8	$37,500	91405, 90046	Visit website
89	J B General Contractors Los Angeles, licensed 43 years	8	$30,000	90034, 90025	Visit website
90	Anchor Design & Build Pasadena, licensed 6 years	7	$115,000	91364, 91607	Call (818) 621-6972
91	D S N Group Inc Los Angeles, licensed 27 years	7	$86,000	91316, 91303	Visit website
92	Del Amo Construction Inc Torrance, licensed 28 years	7	$4,930,000	90027, 90007	Visit website
93	Guidtec Builders Inglewood, licensed 26 years	7	$30,000	90043, 90008	Call (310) 671-3460
94	Heaven Construction Inc Azusa, licensed 11 years	7	$45,000	90038, 90063	Call (888) 510-9103
95	Seismic Retrofiters Inc Sherman Oaks, licensed 7 years	7	$30,000	90066, 90004	Call (818) 468-6406
96	So Cal Construction Inc Inglewood, licensed 15 years	7	$75,000	90034, 90066	Call (323) 455-1500
97	Swami International Inc Gardena, licensed 22 years	7	$50,000	90044, 90731	Call (310) 769-6669
98	Urbane Builders Inc Northridge, licensed 8 years	7	$30,000	91401, 90035	Call (626) 417-1339
99	Veba Builders Inc La Crescenta, licensed 8 years	7	$25,000	91423	Call (818) 330-7030
100	B D B Development Sherman Oaks, licensed 6 years	6	$20,000	90032, 90011	Call (310) 780-1558
101	Konstruct Inc La Verne, licensed 8 years	6	$55,000	90038, 90029	Call (323) 252-5245
102	La Structural LLC Burbank, licensed 5 years	6	$45,000	90291, 90049	Visit website
103	Lcp General Construction Inc licensed 9 years	6	$32,500	91402, 91401	Visit website
104	M A G Builders Palmdale, licensed 22 years	6	$40,000	90044, 90029	Call (661) 400-1891
105	Mokhtari Mehrdad Los Angeles, licensed 22 years	6	$65,000	90031, 91411	Call (310) 993-6685
106	Molina Construction Upland, licensed 31 years	6	not stated	91324	Call (310) 877-5855
107	N E Construction Woodland Hills, licensed 32 years	6	$55,000	90731, 90007	Call (818) 398-9455
108	Pacific Coast Developers Tarzana, licensed 20 years	6	$60,000	90038, 90005	Call (818) 640-6697
109	Pacific West Construction Services Inc Hermosa Beach, licensed 13 years	6	$27,500	90031, 91316	Call (310) 997-2340
110	R F G F Inc Santa Monica, licensed 14 years	6	$43,750	90049, 90034	Call (310) 775-3785
111	U S Prime Contractor Inc Laguna Niguel, licensed 20 years	6	$50,000	90049, 91601	Call (949) 364-1090
112	American1 Builders Inc Los Angeles, licensed 11 years	5	$94,200	90027, 90008	Call (323) 931-1306
113	Avidor Gilad Sherman Oaks, licensed 25 years	5	$45,000	91402, 91306	Call (310) 909-8833
114	C X C Contracting Inc Thousand Oaks, licensed 14 years	5	$50,000	90026, 90025	Visit website
115	Concrete West Construction Inc Anaheim, licensed 8 years	5	$60,000	91356, 90292	Visit website
116	Douglass James M Pasadena, licensed 38 years	5	$50,000	90007, 90028	Call (818) 943-7628
117	Foundation Repair La Inc Los Angeles, licensed 12 years	5	$15,000	90039, 91403	Visit website
118	L L K Construction Inc Van Nuys, licensed 19 years	5	$30,000	91401, 91601	Call (818) 795-9942
119	Mcgrath Contracting Inc Hermosa Beach, licensed 28 years	5	$12,000	90004, 90293	Call (818) 613-7192
120	Mercury Construction Inc Los Angeles, licensed 11 years	5	$60,000	90035, 90028	Call (323) 909-0234
121	Avis Construction Northridge, licensed 25 years	4	$85,000	90048, 90025	Call (818) 437-8187
122	B S C Development Inc Van Nuys, licensed 18 years	4	$45,000	91405, 90025	Visit website
123	Braum Construction and Management Van Nuys, licensed 15 years	4	$100,000	91401, 90044	Call (818) 205-9000
124	Dhe Best Construction Inc Woodland Hills, licensed 7 years	4	$55,000	90011, 90048	Visit website
125	Grundco West Hills, licensed 10 years	4	$40,000	91602, 90046	Visit website
126	H M Construction & Development Burbank, licensed 18 years	4	$57,500	90029, 90006	Call (213) 494-1839
127	Holcomb Engineering Contractors Inc Baldwin Park, licensed 29 years	4	$92,500	90025, 90048	Call (626) 337-1177
128	Intrepid Builders Inc Los Angeles, licensed 6 years	4	$30,000	90034, 90035	Call (310) 343-2300
129	Jfp Construction Company Inc Ontario, licensed 15 years	4	$90,000	90029	Visit website
130	K M S Construction Oceanside, licensed 23 years	4	not stated	91304	Call (760) 908-4328
131	Kom Construction Inc Calabasas, licensed 33 years	4	$30,000	91607	Visit website
132	Liam Construction Inc Irvine, licensed 7 years	4	$25,000	90064, 90744	Call (949) 405-8506
133	Liel Construction Inc Fontana, licensed 17 years	4	$105,000	90043	Call (909) 200-0459
134	Morfin Construction Inc Los Angeles, licensed 33 years	4	$45,000	90033, 90006	Call (213) 494-7449
135	Mullins L Construction Inc Woodland Hills, licensed 18 years	4	$32,000	91423	Call (818) 486-9307
136	Potkin Brian Edward Sherman Oaks, licensed 41 years	4	$32,500	90028, 91423	Call (818) 625-8010
137	S D P Irvine, licensed 32 years	4	$10,000	90026	Call (888) 278-8200
138	Sal Co Construction Los Angeles, licensed 26 years	4	$70,000	90025, 90066	Call (310) 741-8401
139	Seismic Safety Inc Pasadena, licensed 33 years	4	$9,000	90026, 90027	Visit website
140	Silver Construction West Hills, licensed 51 years	4	not stated	90065	Call (323) 857-6391
141	Timmco Construction Arcadia, licensed 15 years	4	$120,000	90066, 90064	Call (626) 698-8137
142	Unique Work Group Inc Tarzana, licensed 17 years	4	$32,500	91403, 91343	Call (310) 880-7217
143	Yun Sung Woon Los Angeles, licensed 6 years	4	$60,000	90066, 90006	Call (818) 536-2111
144	A M C Group Inc Tarzana, licensed 28 years	3	$80,000	90028	Call (818) 402-8811
145	American Power Solutions Inc La Mirada, licensed 24 years	3	not stated	90024, 90003	Visit website
146	Argueta-vargas Rodrigo Los Angeles, licensed 31 years	3	$50,000	90035, 90025	Call (323) 854-2060
147	Arka Construction Inc Los Angeles, licensed 23 years	3	$65,000	90025, 90049	Call (310) 475-2900
148	Blackpointe Group Construction & Management Inc Newbury, licensed 14 years	3	not stated	90049	Call (888) 707-4474
149	Blue Coast Inc Santa Monica, licensed 35 years	3	$80,000	90034, 90025	Call (310) 401-1414
150	Briseno David El Monte, licensed 8 years	3	$62,500	90029, 90049	Call (626) 347-8592
151	Building Constuction & Steel Services Los Angeles, licensed 23 years	3	$40,000	90293, 90023	Call (310) 930-5515
152	Capper Construction Northridge, licensed 45 years	3	$30,000	91607, 90049	Call (818) 645-3021
153	Caribe Construction Inc Burbank, licensed 20 years	3	$45,000	90048, 90035	Visit website
154	Charles Pankow Builders Ltd licensed 32 years	3	$434,949	90058	Call (626) 340-1190
155	D P D Building and Design Chatsworth, licensed 30 years	3	$35,000	91423, 91324	Call (818) 402-6777
156	Dvin & Co Inc Glendale, licensed 8 years	3	$30,000	91352, 91411	Call (818) 736-1155
157	Everest Construct Los Angeles, licensed 5 years	3	$55,000	90025	Visit website
158	Galvic Construction and Development Inc North Hollywood, licensed 15 years	3	$35,000	91401, 91403	Visit website
159	Grand United Builder Inc South Pasadena, licensed 4 years	3	$40,000	90019, 90065	Call (213) 595-3333
160	K3m Building Contractors Inc Los Angeles, licensed 8 years	3	$67,500	90029	Visit website
161	Matt Construction Corporation Santa Fe Springs, licensed 35 years	3	$100,000	90089, 90064	Visit website
162	N E Construction Oak Park, licensed this year	3	$20,000	90038, 90019	Call (760) 269-6104
163	Peace of Mind Home Improvements Los Angeles, licensed 21 years	3	$70,000	90016	Call (562) 577-3977
164	Pfister Philip J Construction Co Chatsworth, licensed 36 years	3	$62,500	90025	Call (818) 999-9106
165	Sauer and Associates Inc Tarzana, licensed 37 years	3	$30,000	91605, 91606	Call (818) 345-7920
166	Tizcareno's Unlimited Construction Sherman Oaks, licensed 16 years	3	$50,000	90016	Call (323) 445-7203
167	Top World Engineering & Construction Co Woodland Hills, licensed 35 years	3	$90,000	90029	Call (818) 345-5655
168	Vision Construction Tarzana, licensed 38 years	3	$50,000	90293, 90045	Call (818) 266-4466

Only contractors with a state license in good standing today are ranked; 34 more have the jobs on record but no active license. Typical job is the value written on the permit, often below the final price.

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Paying for your retrofit

Three common ways. Compare the total you will repay, not the monthly payment.

Home equity line of creditBorrow against what your home is worth. Rates are usually lower, but your home secures the loan, and approval takes a few weeks.
Personal loanNo collateral and a fast answer. Rates are usually higher and you repay sooner.
Contractor financingMany contractors offer a plan through a lender. Get the rate, fees and total cost in writing, then compare it with your bank.

Earthquake Brace + Bolt. A California program gives grants of up to $3,000 toward bolting and bracing a wood-frame house on a raised foundation built before 1980, in eligible ZIP codes. Registration opens for set periods each year. Check if your house qualifies