Contact Westminster ADU Builders

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(833) 620-3521
Our Office8401-8461 Westminster Boulevard Ste 440
Westminster, CA 92683
Same-Day Service AvailableWe dispatch the nearest available technician. Emergency calls prioritized.
Free, No-Obligation EstimateWe assess the job and give you a written price before any work begins.
Licensed, Insured & GuaranteedEvery job is backed by our workmanship warranty. You're fully protected.

Contact Westminster ADU Builders – Free ADU Estimate in Westminster

Call (833) 620-3521 to schedule your free ADU estimate in Westminster, CA. You’ll talk with a live coordinator who listens to what you’re planning, answers the first round of questions, and gets you on the calendar. No high-pressure sales tactics. No obligation. Just a straight assessment of your property, your budget range, and what’s actually possible under Westminster and Orange County ADU rules.

Call (833) 620-3521

What Happens When You Call

Step 1: You call (833) 620-3521. A live coordinator answers during business hours. You’ll explain what you have in mind – a garage conversion, a detached backyard unit, maybe just a question about whether your lot qualifies. The coordinator takes notes and matches you with the right person on our Westminster team.

Step 2: We schedule your free site assessment. We’ll find a time that works for you, Monday through Friday from 7 AM to 7 PM, or Sunday from 7 AM to 7 PM. The assessment happens at your property in Westminster, where we look at setbacks, access, utility connections, and soil conditions. This is where the real estimating begins.

Step 3: You receive a written, line-item estimate. No verbal ballparks that change later. You’ll get a clear breakdown of site work, foundation or slab, framing, mechanical, finishes, and the permit line items. We walk you through every number so you understand what you’re paying for and why.

Step 4: We build it. Once you approve the estimate and we pull permits, the construction crew handles the work through final inspection. You’ll have a single point of contact throughout, and we don’t disappear after the contract is signed. We’re local to Westminster and we answer our phone.

Why Westminster Homeowners Call Us First

  • We know Westminster’s ADU ordinance line by line. The city has specific setback and height requirements that trip up general contractors who don’t build ADUs every week. We’ve been doing this since 2016, so we know what flies and what stalls at plan check.
  • Every pro working under our name is required to hold the license and insurance their state requires. That’s a network standard, not a marketing line. We pull permits on every job, and inspections pass because we build to code the first time.
  • Written line-item pricing, no change-order games. The estimate you approve is the scope you get. If something changes during construction, you hear about it before it costs you a dollar. Nobody likes surprises when they’re writing a check for a six-figure build.
  • We finish what we start. ADU construction in Westminster means coordinating with the city, the utility companies, and sometimes an HOA. We handle that coordination. You won’t be chasing down a permit runner or wondering why the framing inspection hasn’t been scheduled.

Our Service Area Around Westminster

We build ADUs throughout Westminster and surrounding Orange County. Response times below reflect how quickly we can typically get to a site assessment once you call.

  • Westminster: 1-3 business days
  • Irvine: 2-4 business days
  • La Habra: 2-4 business days
  • Brea: 2-4 business days
  • Yorba Linda: 2-4 business days
  • Laguna Woods: 3-5 business days
  • Laguna Hills: 3-5 business days
  • Laguna Beach: 3-5 business days
  • Lake Forest: 3-5 business days
  • Foothill Ranch: 3-5 business days
  • Aliso Viejo: 3-5 business days
  • Mission Viejo: 3-5 business days
  • San Joaquin Hills: 3-5 business days

If your city isn’t listed, call anyway. We regularly work with homeowners in neighboring communities, and we’ll let you know honestly whether we’re the right fit for your project.

Frequently Asked Questions – Booking & Estimates

Call or Request a Callback

The next step is a phone call. Call (833) 620-3521 to request your free ADU estimate in Westminster. We’re available Monday through Friday, 7 AM to 7 PM, and Sunday, 7 AM to 7 PM. If you call outside those hours, leave a message and we’ll call you back the next business day. No pressure. Just straight answers from a Westminster ADU team that’s been doing this since 2016.

Westminster ADU Builders
Serving Westminster, CA and surrounding Orange County
Phone: (833) 620-3521
Hours: Mon-Fri 7 AM-7 PM | Sat closed | Sun 7 AM-7 PM

Written by the team at Westminster ADU Builders, serving Westminster, CA since 2016.

Areas We Serve
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