JNC Construction
5.0 (143 Google reviews)
9360 Base Line Rd Ste H, Rancho Cucamonga, CA 91701
Remodels & additionsHome builderGeneral contractor
ADU Builders in San Bernardino County
201 builders across 19 cities · 97 CSLB license verified
★ Featured ADU builder
Featured ADU builder — this spot is open
Put your ADU company at the top of this page, in front of San Bernardino County homeowners who are comparing builders right now. Includes your logo, project photos, a direct call button and a link to your website.
Lots across San Bernardino County are often larger and land costs lower, which makes detached and prefab ADUs attractive. Foothill and mountain areas can face wildfire-zone construction requirements.
Cities in San Bernardino County
Adelanto 14Apple Valley 17Chino 49Chino Hills 117Colton 31Fontana 83Hesperia 18Highland 8Loma Linda 5Montclair 38Ontario 54Rancho Cucamonga 31Redlands 20Rialto 56San Bernardino 51Upland 27Victorville 16Yucaipa 7Yucca Valley 2
Top-rated ADU builders in San Bernardino County
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M.L. Construction
5.0 (110 Google reviews)
✔ CSLB License Verified #902878886 W Rialto Ave, Rialto, CA 92376
Remodels & additions
John Christopher Construction, Inc.
5.0 (108 Google reviews)
✔ CSLB License Verified #1001495Service-area business · Placentia
Remodels & additionsHome builderGeneral contractor
SouthSTAR Construction
5.0 (75 Google reviews)
✔ CSLB License Verified #10768701611 Pomona Rd, Corona, CA 92878
Home builderGeneral contractor
Skilled Home Builders
5.0 (38 Google reviews)
✔ CSLB License Verified #1086446325 N 2nd Ave G, Upland, CA 91786
Remodels & additionsHome builder
Storm Guard Construction Inc.
5.0 (35 Google reviews)
✔ CSLB License Verified #10641581601 Chicago Ave, Riverside, CA 92507
General contractor
Hostetler Construction Inc.
5.0 (34 Google reviews)
✔ CSLB License Verified #10257681529 W 13th St Ste H, Upland, CA 91786
Home builder
A and F Ramirez Construction
5.0 (33 Google reviews)
✔ CSLB License Verified #10601611170 Oneil St, Upland, CA 91784
Remodels & additionsGeneral contractor
MDT, Inc
5.0 (32 Google reviews)
6744 Magnolia Ave, Riverside, CA 92506
Remodels & additionsGeneral contractor
JL Biber Construction, Inc.
5.0 (26 Google reviews)
✔ CSLB License Verified #521362Service-area business · Corona
General contractor
Good Neighbor Construction
5.0 (25 Google reviews)
✔ CSLB License Verified #11344351255 W Colton Ave #589, Redlands, CA 92374
Remodels & additionsHome builderGeneral contractor
St Paul Contracting
5.0 (25 Google reviews)
✔ CSLB License Verified #11040719650 Business Center Dr Bldg 17, Suite 131, Rancho Cucamonga, CA 91730
J.Peace Builders Inc
5.0 (24 Google reviews)
✔ CSLB License Verified #1073588414 E Rialto Ave STE B, San Bernardino, CA 92408
General contractor
SoCal ADU Pros, Inc
5.0 (22 Google reviews)
8175 Limonite Ave suite A, Riverside, CA 92509
ADU specialistRemodels & additions
Silver Spur Construction, Inc.
5.0 (22 Google reviews)
Service-area business · Adelanto
General contractor
Easton Designs and Consulting Inc.
5.0 (22 Google reviews)
✔ CSLB License Verified #1121194960 N Tustin St, Orange, CA 92867
General contractor
Cassini Construction
4.9 (58 Google reviews)
Service-area business · Rialto
Remodels & additionsGeneral contractor
WM Construction
5.0 (21 Google reviews)
✔ CSLB License Verified #10976871600 S Grove Ave Ste A, Ontario, CA 91761
General contractor
Greater Pacific Construction
5.0 (21 Google reviews)
505 N Tustin Ave Ste 158, Santa Ana, CA 92705
Remodels & additionsHome builderGeneral contractor
Producers Construction Inc
5.0 (21 Google reviews)
✔ CSLB License Verified #11408132845 W Ball Rd, Anaheim, CA 92804
General contractor
E-Z Contracting
5.0 (20 Google reviews)
Service-area business · Fontana
Remodels & additionsHome builderGeneral contractor
Uni Construction + ADU Design
5.0 (20 Google reviews)
1142 S Diamond Bar Blvd, Diamond Bar, CA 91765
ADU specialistGeneral contractor
Straight Edge Builders
4.9 (48 Google reviews)
✔ CSLB License Verified #1075936301 9th St, Redlands, CA 92374
Garage conversionsRemodels & additionsGeneral contractor
Damian DeLapp Builders
5.0 (19 Google reviews)
✔ CSLB License Verified #6528101749 Bern Dr, Corona, CA 92882
Remodels & additionsHome builderGeneral contractor
C S D Construction
5.0 (19 Google reviews)
633 N Heatherstone Dr, Orange, CA 92869
Remodels & additionsHome builderGeneral contractor
Mystery Construction Inc
5.0 (18 Google reviews)
✔ CSLB License Verified #106261416805 Central Rd, Apple Valley, CA 92307
General contractor
Khan Construction Co.
4.9 (37 Google reviews)
✔ CSLB License Verified #7005195802 Aurora Ave, Jurupa Valley, CA 91752
Home builderGeneral contractor
JBC General Building Contractor
5.0 (17 Google reviews)
✔ CSLB License Verified #1055826818 N Mountain Ave Ste 202, Upland, CA 91786
General contractor
RG Marble & General Construction
5.0 (16 Google reviews)
✔ CSLB License Verified #900335Service-area business · Colton
Remodels & additionsGeneral contractor
Skyline ADU Solutions
5.0 (16 Google reviews)
211 Erie St, Pomona, CA 91768
ADU specialistHome builder
Premium Construction Inc
5.0 (16 Google reviews)
✔ CSLB License Verified #11095332921 Rolling Village Dr, Chino Hills, CA 91709
Backyard Estates
4.9 (30 Google reviews)
✔ CSLB License Verified #10760652335 W Foothill Blvd #18, Upland, CA 91786
Home builder
Capy Construction
5.0 (15 Google reviews)
✔ CSLB License Verified #1120565Service-area business · Walnut
Remodels & additionsHome builderGeneral contractor
General Contractor Say Group Development
5.0 (14 Google reviews)
✔ CSLB License Verified #116150011799 Sebastian Way Ste 103, Rancho Cucamonga, CA 91730
General contractor
Lopez United Inc
5.0 (14 Google reviews)
✔ CSLB License Verified #84193211991 Silicon Ave, Chino, CA 91710
Remodels & additionsHome builderGeneral contractor
Vision ADU
5.0 (14 Google reviews)
✔ CSLB License Verified #11158421440 S State College Blvd #6h, Anaheim, CA 92806
ADU specialist
Orange County Construction ADU Contractor
5.0 (14 Google reviews)
✔ CSLB License Verified #9506161173 N Red Gum St, Anaheim, CA 92806
ADU specialistGarage conversionsRemodels & additionsHome builderGeneral contractor
Garage Conversion CBI | ADU Contractor
5.0 (14 Google reviews)
1407 N Batavia St #113, Orange, CA 92867
ADU specialistGarage conversionsGeneral contractor
Salem Builders
5.0 (13 Google reviews)
Service-area business · Montclair
Remodels & additionsHome builderGeneral contractor