Why Thousand Oaks Homeowners Choose Fielding ADU Thousand Oaks for ADU
Thousand Oaks homeowners keep calling us for one reason: they’re tired of contractors who promise an ADU and then disappear, change the price at the door, or leave a half-finished project in the backyard. Reed Calloway leads our Thousand Oaks team, and every project we run follows one standard from the first phone call to the final walkthrough. We put the price in writing before any work starts, we build by the book, and we stand behind the work for a full year. That’s not marketing language. That’s The Garrison Standard, and it’s stamped on every job we do in Thousand Oaks.
6 Reasons We’re Thousand Oaks’s Top ADU Company

1. Built on The Garrison Standard Since 2006
Fielding ADU Builders has framed additions and ADUs square, permitted, and finished on schedule since 2006. That’s two decades of doing the same thing the same way, and our Thousand Oaks branch carries that same discipline to every job from Westlake Village to Calabasas. When a system has worked this long, you don’t change it. You just bring it to more cities, and Thousand Oaks got its own Fielding team because this market needed ADU builders who show up.
2. A Local Reputation Homeowners Actually Talk About
We don’t buy billboards and we don’t run countdown-timer ads. Our Thousand Oaks work comes from referrals, from neighbors who watched an ADU go up on the next street over and asked who built it. Reed Calloway knows the Thousand Oaks market, the permit desk, and what the city’s planning department looks for in an ADU submittal. That kind of local knowledge only comes from doing the work here, not from a national call center reading a script.
3. Every Pro Required to Carry State License and Insurance
We’re an independently owned and operated location in the Garrison Partners family, and every pro working under our name is required to hold the license and insurance their state requires. You should ask any contractor about this, and you should expect a straight answer. We give one. You’ll see it on the paperwork before we set foot on your property in Moorpark or Simi Valley.
4. Deep Experience with Abodu, Cover, and Dvele ADU Systems
We’ve built with Abodu and Cover prefab ADU systems, and we’ve worked on Dvele panelized projects in Ventura County. That matters because each brand has its own foundation specs, utility hookups, and finish details, and a crew that’s never touched one before will learn on your dime. We already know the tolerances, the sequencing, and the inspection checkpoints. You get a faster build and fewer surprises.
5. Written Pricing Before Any Work Starts
The price we put in writing is the price you pay. No change orders appearing halfway through because something “came up.” We walk the site, we spec the job, we give you a line-item written estimate, and that’s the number. If the scope changes because you change the scope, we write that change down and you approve it before we proceed. That’s the disciplined way to build, and it’s the only way we work in Thousand Oaks.
6. The Garrison Guarantee in Writing, for a Full Year
Every job we build carries a written one-year workmanship guarantee. If something we built fails in that year, we come back and make it right at no charge. Simple sentence, real commitment. It’s part of The Garrison Standard, and it’s been part of every Fielding job since the brand started in 2006. You’ll see it in your contract, not in fine print.
Our Promise to You
Here’s exactly what you get when you hire Fielding ADU Thousand Oaks. We show up inside the window we gave you. The price goes in writing before any work starts, and that written price covers the scope we agreed on. We build by the book, which means permits pulled, inspections passed, and no cutting corners to save a day. We leave your site clean and squared away at the end of every workday, not just at the end of the job. And the work we do for you is guaranteed in writing for a full year. If it fails in that time, we come back and make it right at no charge. That’s the promise, and Reed Calloway and the team enforce it on every project from Thousand Oaks to Camarillo.
Frequently Asked Questions

You should choose us if you want a written price before work starts, a crew that shows up inside the window they gave you, and a one-year workmanship guarantee in writing. Those three things eliminate most of what goes wrong on ADU projects. We’re a local Thousand Oaks branch of a brand that’s been building this way since 2006, led locally by Reed Calloway. Call (805) 309-3020 and compare our written estimate against anyone else’s.
Tell us immediately, and we’ll make it right. Our work is guaranteed in writing for a full year. If something we built fails in that year, we come back at no charge and fix it. We’d rather hear about a problem the week it shows up than the month after you’ve been living with it. Call us and we’ll schedule the fix.
No. Estimates are free. We’ll come out to your Thousand Oaks property, look at the site, talk through what you want from your ADU, and put together a written line-item estimate. You keep the estimate whether you hire us or not. Call (805) 309-3020 to schedule yours.
Yes. Every pro working under the Fielding ADU Thousand Oaks name is required to hold the license and insurance their state requires. We follow California building codes and the Ventura County permitting process on every project. You can verify our credentials any time before signing a contract.
Not unless you change the scope. The written price we give you before work starts is the price for the work we agreed to. If you decide mid-project to add a window, upgrade finishes, or expand the footprint, we’ll write up that change, give you the new price in writing, and get your approval before we do the extra work. No surprises at the door. Call (805) 309-3020 and get your free written estimate.
Written by Reed Calloway, Owner at Fielding ADU Thousand Oaks, serving Thousand Oaks since 2006.

