Guide

    How to choose a second-story addition builder in Los Angeles

    A second story is a structural project on the house you live in. The roof comes off, the walls below carry a floor they were never asked to carry, and your family is usually downstairs while it happens. The company you hire is the whole decision. This page is the checklist I would want a homeowner to run on me, and on anyone else who quotes the job.

    I am Sebastian Moreno Rivera, the owner of Build And Decor Construction. Every line below has a public answer: a license record, a name on a drawing, an address you can drive past.

    Start your second story(949) 558-9738

    Who holds the license, and since when

    Ask for the license number before anything else, and look it up on the Contractors State License Board website. The record shows the licensee, the qualifying individual, the classifications, the bond and workers' compensation status, and the issue date. A second story needs the Class B General Building classification. If the company sells under one name and the record shows another, ask why, and ask which one signs your agreement. The record for CSLB #1113888 is one search away (opens in a new tab).

    The issue date tells you how long the licensee has answered for its work in California. A brand with years in other states can have a California license that is months old. Neither fact is disqualifying on its own; both belong in the open before you sign.

    Who performs the structural evaluation, and in whose name

    A second floor is a new load path from the roof to the soil. Someone has to confirm what the house can carry, and that someone should be a structural engineer whose stamp goes on the calculations the City reviews. Ask who that engineer is, when they look at the house, and whether the builder exposes the foundation before the drawings start. A number quoted before anyone has seen the footings is a guess with your name on it.

    On my jobs the foundation is exposed where it matters, the framing below the new floor is checked, and the shear walls are documented before the architect and the engineer start. That is the order the whole project depends on.

    Franchise crew, or the owner's own team

    Some companies selling second stories are franchises: a brand and a system, with a local operator. Others are local general contractors whose owner runs the crew. The difference is not quality by itself. It is accountability: who signed your agreement, who hired the framer, where the money goes, and who you call when something is wrong. Ask each question plainly and write down the answer.

    Who is on site the day the roof opens

    Opening the roof is the highest-risk day of the project. Ask who will be standing on your site that morning, by name, and what covers the house that night. The right answer names a person and a weather structure that is already up before demolition starts. An answer that names a schedule and no person is not an answer.

    Local references you can check

    Ask for addresses of finished second stories you can drive past, with their permit numbers. LADBS building records (opens in a new tab) are public, so you can confirm the permit and its inspections yourself. A time-lapse from another market shows that a company can build; a finished house two neighborhoods over shows that it built here, under the rules your lot answers to.

    The two kinds of company, line by line

    The table below sets the two kinds side by side without naming anyone. Every line ends with how you check it. Run it on me as well; my answers are on this site, and the license record is one search away. What a home improvement agreement must contain, and the rule on the down payment, are on the CSLB's own page on contracts (opens in a new tab).

    Out-of-state franchise specialist and local licensed general contractor, compared

    The questionOut-of-state franchise specialistLocal licensed general contractorHow you check
    Who holds the license?Ask whether the brand itself holds a California license or only its local operator does. The record shows whose name is on it.The company you sign with, with a named qualifying individual on the State record.Ask for the license number and look it up on the CSLB site. The record names the licensee and the qualifying individual.
    Since when?The local operator's issue date, which can be recent in a market the brand has just entered.The company's own issue date, which the record shows.The issue date on the CSLB record. Ask what was built in Los Angeles since then.
    Who evaluates the structure?Depends on the operator. Ask whether an engineer looks at the house before a price is quoted, or after.A structural engineer the builder brings in before design, after the builder exposes the foundation.Ask whose name goes on the calculations the City reviews, and whether the foundation is exposed before the drawings start.
    Who builds it?Ask who hires the crew, who supervises it, and whose system they work to.The company's own crew and its named trades, under the owner's supervision.Ask who is the superintendent, who the framer is, and whether the same crew stays from roof-off to punch list.
    Who is on site the day the roof opens?Ask. The answer varies by operator.The owner or a named project lead, with the weather structure already up.Ask for the name and the phone number of the person who will be standing there, and what covers the house that night.
    Local recordAsk for local addresses. A brand new to a market may have finished projects only elsewhere.Addresses in Los Angeles you can drive past, with owners you can call.Ask for finished second-story addresses and their permit numbers, and check them. LADBS building records are public.
    How the money movesAsk whether a brand fee exists, what it covers, and which company answers for the work.A written scope and payment stages tied to milestones you can verify on site.Read the agreement before the deposit. California caps the down payment on a home improvement contract; the CSLB publishes the rule.

    See your house with a second story

    Send me your address and two or three photos of the house. I send back a feasibility read in writing: what the zoning allows above your roof, what the lot adds, what a house of its age and type usually needs to carry a new floor, and a simple massing sketch of the new floor on your house. I read every request myself.

    Get the feasibility readSecond-story additions in Los Angeles

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