The Sutton ADU Santa Clarita Guarantee
We put our name on every ADU, home addition, and room addition we build in Santa Clarita. That means something specific here. If the work isn’t right within one full calendar year of completion, Sutton makes it right. That’s the 365-Day Done Right Promise, and it’s written into every project we take on, not spoken over a handshake. You’ll get a written price before any work starts, a crew you can identify by name and photo before they ring your doorbell, and a named guarantee stamped on the paperwork. Founded in 2006, we’ve been building second homes on Santa Clarita lots long enough to know that a guarantee only matters if it’s specific enough to hold.
What’s Covered
Here’s exactly what stands behind the work when you build with Sutton ADU Santa Clarita.
- Workmanship defects. The 365-Day Done Right Promise covers defects in workmanship for one full calendar year from project completion. If something we built fails because of how we built it, we fix it.
- Materials as specified. The products we put in your ADU or addition are listed in your written proposal before any work starts. What’s on that page is what goes into your build.
- Clean worksite, every day. Our crews leave your Santa Clarita property tidy at the end of each workday. Construction is messy by nature, but a worksite that stays orderly is a worksite that stays safe for your family.
- Written pricing, honored. The number on your written proposal is the number you pay. No surprise invoices, no scope creep passed silently to the bill. If something changes mid-build, you’ll hear about it in writing before it hits your wallet.
- Vetted people on your property. Every technician who steps onto your lot is background-checked, identity-verified, uniformed, and photo-badged. Their name and photo are sent to you before they arrive. That’s the Threshold Standard, and it applies to every visit.
- Free second visit if something fails. If a repair or element of the build fails within the coverage window, we come back. No haggling, no fee, no argument about whether it’s our responsibility. We look, we assess, and if it’s on us, we handle it.
Our Satisfaction Promise
If you’re not satisfied with how your ADU or addition turned out, here’s the process: call us, tell us what’s wrong, and we’ll send someone out to look at it. You won’t have to convince a call-center rep or file a claim through a third party. You’ll talk to a real person at Sutton ADU Santa Clarita, and a real person will show up at your door. If the issue falls under the 365-Day Done Right Promise, we schedule the fix and we do it. If it’s an element we installed that fails within that first year, the free second visit applies. No haggling, no fee. And if the issue isn’t covered, you’ll get a straight answer about what it will take to resolve it and exactly what it will cost. We’d rather have a hard conversation up front than a bitter customer down the road. Miles Hartwell, Owner, built this company on the belief that a guarantee is only as good as the willingness to answer the phone when something goes wrong. That’s the standard we hold ourselves to on every project in Santa Clarita.
Licensed & Insured Backing
Paperwork is the least romantic part of building an ADU, and the most important. We’re licensed and insured, and we’re glad to show you proof during your estimate. Licensing means the state has a record of who we are and holds us accountable to building codes and consumer protection laws. Insurance means that if something goes wrong on your property, there’s a backstop. It also means our crews are covered, so you’re not relying on a handshake and a promise. In Santa Clarita, where ADU construction has surged in recent years, plenty of unlicensed operators have shown up with low bids and no standing. We’d rather you check us before you hire us. Ask for the license, ask for the insurance certificate, and call (661) 430-0429 to schedule a free estimate. You’ll get a written price and a named guarantee before you commit to anything.
What This Means for Your Santa Clarita Build
An ADU is a second home on your own lot. It’s a place for aging parents, grown kids, rental income, or a home office that’s actually separate from your living room. It’s also a construction project that touches your foundation, your electrical panel, your plumbing, and your property line. So the guarantee matters in ways that a kitchen cabinet warranty never will. A detached ADU in Santa Clarita often requires a setback (the required gap between your new structure and the property line), city inspections at multiple stages, and coordination with utility connections. If the people doing that work aren’t accountable, you’re the one holding the risk. The 365-Day Done Right Promise exists because we want the accountability to be ours, not yours.
Who Shows Up at Your Door
The Threshold Standard is the system behind the guarantee. Before any visit, you get the name and photo of the technician coming to your property. They arrive in a clean, marked uniform and show a photo ID badge at the door, every time. Background checks and identity verification happen before a person is ever scheduled on a Santa Clarita job. That’s not a one-time policy. It’s the operating standard for every Sutton location, and it’s how you know the person holding a drill on your property is the person we said we were sending.
Brands We Stand Behind
Part of standing behind our work means only recommending product lines we’ve actually built with. We’re authorized to work with recognized ADU product lines including Abodu, Dvele, Mighty Buildings, Plant Prefab, Boxabl, and Cover, plus Tuff Shed conversions and James Hardie cladding systems. That matters because prefab and modular ADUs have different site requirements, different foundation needs, and different utility hookups. We’ll tell you which product line fits your lot and budget, and we’ll stand behind the installation of whichever one you choose.
The Name Behind the Promise
Sutton is an old English name for a south farm. It’s a settled, rooted kind of word, and that’s exactly what adding a second home to your lot should feel like. You’re not speculating on a fix-and-flip. You’re investing in your own property, in Santa Clarita, for the long haul. That’s the mindset we bring to every project, and it’s why the guarantee is named, written, and backed by a company that’s been doing this since 2006.
Questions Homeowners Ask Us About the Guarantee

How long does the guarantee last?
The 365-Day Done Right Promise covers defects in workmanship for one full calendar year from project completion. That’s not manufacturer warranty language for the products themselves. Those carry their own terms from brands like James Hardie or your prefab manufacturer, and we’ll give you whatever documentation applies. Our promise covers how we built it.
Will the price change once work starts?
Not silently. You get a written price before any work begins, and that’s the price you pay unless something changes in scope that you approve in writing first. No surprise invoices. If you want to add something mid-build, we give you a written change order and you decide. Estimates are free, and you can call (661) 430-0429 to schedule yours.
What if something fails after the first year?
Call us anyway. The 365-Day Done Right Promise has a specific window, but that doesn’t mean we stop answering the phone. If a structural issue appears at month 14, we want to know about it. We’ll send someone out to look, assess honestly whether it’s a workmanship issue, and tell you what your options are. We’re not going to hide behind a calendar if the problem traces back to how we built it.
Do you pull the permits?
Yes. ADU construction in Santa Clarita requires city permits and inspections at multiple stages, and we handle that process. Permits get pulled, inspections get scheduled, and the work gets signed off before we call the project done. If an inspector flags something, we fix it and get it re-inspected before proceeding.
Written by Miles Hartwell, Owner at Sutton ADU Santa Clarita, serving Santa Clarita since 2006.

