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Licensed under Class B (General Building)

Second-Story Additions in Vernon, CA — CSLB-Licensed Contractors

Find CSLB-licensed second-story addition contractors in Vernon, CA. Every listing shows an active licence number you can check yourself.

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What to Expect from Second-Story Additions in Vernon

A second-storey addition in Vernon is the most structural thing most homeowners ever commission. Everything below has to carry what goes above, so the project starts with an engineer looking at the foundation and the existing walls, not with a floor plan.

Expect the house to be open to the weather for a period. The roof comes off, which means temporary protection, and it means the schedule is genuinely weather-dependent in a way a kitchen remodel is not. Ask how the house is protected between tear-off and dry-in, and what happens if it rains.

The staircase is the detail people underestimate. It has to land somewhere sensible on both floors and it consumes real square footage on the level you already live on. A design that adds 800 square feet upstairs while eating 60 downstairs is a different proposition from the one on the drawing.

  • Structural assessment of foundation and existing walls
  • Engineering and plan check submission
  • Roof removal and weather protection
  • Framing the new floor and walls
  • Staircase construction and downstairs reconfiguration
  • Extending plumbing, electrical and HVAC upward

Why CSLB Licensing Matters

Adding a storey involves structural, framing, roofing, plumbing, electrical and finish work, which puts it well inside Class B (General Building). It is the classification CSLB defines for structures requiring at least two unrelated trades, and this work requires many more than two.

Each contractor here holds that licence, active, at a Vernon address, with the number linked to the register. On a project of this size it is worth checking the record again before each large payment, not only at signing.

The register says nothing about whether a firm has done this before, and second-storey work is not a scaled-up remodel. Ask how many they have completed in the last three years, whether any needed the foundation reinforced after the engineer looked, and what that did to the budget. A contractor who has a number for that has done the work; one who says it never comes up has not done much of it.

Every licence number below links to its record at cslb.ca.gov, where you can confirm status and expiry yourself.

Licensed Second-Story Additions Contractors in Vernon

11 registered in Vernon · 23,334 active CLEAR licences across Los Angeles County · page 44 of 973

Ainars Construction Inc

BRANCHO PALOS VERDES, CA 90275
CSLB 1140146
(727) 709 7867View profile

Air American Inc

B| C20| C43SANTA CLARITA, CA 91350
CSLB 960378
(661) 888 1162View profile

Air Care Mechanical Co

B| C20ROSEMEAD, CA 91770
CSLB 516562
(626) 216 6769View profile

Air Comfort Control Inc

B| C10| C20LANCASTER, CA 93539
CSLB 1003040
(818) 277 4845View profile

Air Conditioning Company Inc

B| C-4| C10| C20| C36| C38PASADENA, CA 91101
CSLB 819862
(818) 244 6571View profile

Air Conditioning Depot Inc

B| C20SUNLAND, CA 91041
CSLB 699070
(818) 437 7765View profile

Air Conditioning Solutions Inc

B| C-4| C20| C36| C38ALTADENA, CA 91001
CSLB 863580
(626) 797 0547View profile

Air Mechanical

B| C-4| C36| C38CITY OF INDUSTRY, CA 91746
CSLB 881311
(626) 590 7806View profile

Air Plus

B| C-4| C20| C36VAN NUYS, CA 91406
CSLB 573122
(818) 780 8855View profile

Air Tro Incorporated

B| C10| C20| C36| C38MONROVIA, CA 91016
CSLB 258228
(626) 357 5315View profile

Air-Al

B| C20LOS ANGELES, CA 90019
CSLB 1082711
(714) 321 1548View profile

Air-Ex Air Conditioning Inc

B| C-4| C-7| C20POMONA, CA 91767
CSLB 418759
(909) 596 6856View profile

Airdraulics

B| C10| D40NORTH HOLLYWOOD, CA 91605
CSLB 510257
(818) 982 1400View profile

Airdyne A /C

B| C20CERRITOS, CA 90703
CSLB 809770
(714) 809 8542View profile

Aire-Masters Air Conditioning

B| C20SANTA FE SPRINGS, CA 90670
CSLB 315631
(562) 944 6302View profile

Airemasters Air Conditioning

B| C20SANTA FE SPRINGS, CA 90670
CSLB 587424
(714) 330 0912View profile

Airmaker HVAC Inc

B| C10| C20| C36| C38WINNETKA, CA 91306
CSLB 1080128
(818) 642 5278View profile

Aisher Inc

B| C33HACIENDA HEIGHTS, CA 91745
CSLB 1050408
(213) 905 2408View profile

Aj & Son Construction Co

BREDONDO BEACH, CA 90278
CSLB 923703
(310) 619 1473View profile

Aj Home Solutions Inc

BLOS ANGELES, CA 90003
CSLB 1143227
(562) 391 8668View profile

Aj Mach LLC

BMONTEREY PARK, CA 91755
CSLB 1152712
(626) 554 0553View profile

Ajamian Group

B| C10| C20| C36PASADENA, CA 91107
CSLB 988478
(626) 926 1222View profile

Ajbuild

BLOS ANGELES, CA 90066
CSLB 933976
(310) 498 3492View profile

Air Demolition & Environmental Solutions

ASB| B| C-2| C21| C22| HAZLOS ANGELES, CA 90018
CSLB 795278
(323) 733 0508View profile
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How to Get Started

  1. 1

    Check the licence

    Open the CSLB record from any listing below and confirm the licence is active and the classification matches the work. It takes seconds and it is the one thing you can verify without asking anyone.

  2. 2

    Call three recent references

    Ask each contractor for three jobs finished in the last year, then actually call them. Ask what went wrong and how it was handled — every project has something, and the answer tells you more than a list of successes.

  3. 3

    Tell us about the job

    Send us the scope and we will connect you. No account, no fee, and we do not sell your details on.

Licence first. References second. Reviews last. Why that order.

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Related Services in Vernon

These sit under the same Class B (General Building) licence, so the same contractors are qualified for them.

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Frequently Asked Questions

Can my house support a second storey?+

That depends on the foundation and the existing wall framing, and only an engineer can answer it for your house. Some homes need footings reinforced or shear walls added first. Get that assessment before you fall in love with a floor plan, because it can change the budget substantially.

How many contractors handle second-storey additions in Vernon?+

The register shows 11 holding an active Class B licence at a Vernon address, and 23,334 across Los Angeles County. Class B is the classification this work falls under, so it lists the same pool as other general building pages.

Do we have to move out during the work?+

Often yes, at least for the phase when the roof is off. Ask for that period to be identified in the schedule up front, because temporary accommodation is a real cost that rarely appears in the initial quote.

How long does a second-storey addition take?+

It varies with engineering, plan check and inspection scheduling in your jurisdiction more than with the building itself. Ask for a schedule that names the inspection milestones rather than a single completion date.

Does a second-storey addition need permits from Building Division?+

Yes — structural plans, roof removal and new floor area require plan check and staged inspections through Building Division.

Every contractor here holds an active CSLB licence

Check any licence yourself in one click. When you are ready, tell us about the job and we will connect you.

Get matched with a licensed pro

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