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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 4 of 973

24 Hour Handyman and Contractor

BLONG BEACH, CA 90804
CSLB 1062687
(714) 955 7907View profile

24 Hour Water Damage

BHACIENDA HEIGHTS, CA 91745
CSLB 951157
(626) 626 5543View profile

24 Prefab LLC

BSANTA MONICA, CA 90404
CSLB 862385
(310) 243 6967View profile

24-7 Garage Door & Gate Services

B| D28ENCINO, CA 91316
CSLB 1055496
(818) 805 7578View profile

24/7 Construction Works Inc

BLOS ANGELES, CA 90032
CSLB 1022079
(626) 536 8710View profile

247 Pro Restoration

BWOODLAND HILLS, CA 91364
CSLB 1143840
(818) 418 2024View profile

2BY4 Construction Services Inc

BBURBANK, CA 91502
CSLB 1152581
(747) 333 7402View profile

2Golden Construction

B| C-8COMPTON, CA 90222
CSLB 1135519
(310) 430 3141View profile

2H2N Construction Inc

BPASADENA, CA 91104
CSLB 1148808
(626) 354 3940View profile

2R Remodel

BWEST HILLS, CA 91304
CSLB 1086275
(818) 968 8860View profile

3 - B'Z Painting Co

B| C33VAN NUYS, CA 91401
CSLB 911397
(818) 752 7613View profile

3 A Contract Builders Inc

BLYNWOOD, CA 90262
CSLB 1027553
(562) 307 2890View profile

3 A's Construction

BLONG BEACH, CA 90813
CSLB 818157
(310) 350 3636View profile

3 at Once Inc

BWOODLAND HILLS, CA 91367
CSLB 847812
(818) 521 0361View profile

3 Clover Group LLC

BNORWALK, CA 90650
CSLB 1118614
(424) 438 0380View profile

3 Dim Construction

BCANYON COUNTRY, CA 91351
CSLB 853140
(661) 645 5673View profile

3 J Construction

BNORWALK, CA 90650
CSLB 769591
(562) 406 2292View profile

3 Kings Associates Inc

BLOS ANGELES, CA 90047
CSLB 951298
(310) 215 9940View profile

3 Seven 10 Enterprise

B| C-8| C10GLENDORA, CA 91741
CSLB 1108611
(818) 336 7336View profile

3 Ten Builders Inc

BPORTER RANCH, CA 91326
CSLB 1059733
(805) 298 2254View profile

3 Trades Construction

BNORTH HILLS, CA 91343
CSLB 1113179
(818) 619 1328View profile

3-D General Construction

B| C21TARZANA, CA 91356
CSLB 1014808
(310) 707 8445View profile

3000 Construction

BHAWTHORNE, CA 90250
CSLB 994421
(310) 946 6643View profile

2H Construction Inc

A| BSIGNAL HILL, CA 90755
CSLB 741856
(562) 424 5567View 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.

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