No. Mantel matches homeowners with independent licensed ADU builders. They design, bid, and build; we vet them before you're introduced.

What does this cost me?

Nothing. Homeowners never pay Mantel — the builders pay us for introductions. Your bids aren't marked up.

I'm still deciding whether an ADU pencils out. Too early?

No — real bids are exactly how you decide. Choose “still exploring” on the form and the builders will scope and price it so you can make the call with numbers.

Do you handle permits?

The builders do — permitting experience in your city is one of the things we screen for. It's often the difference between a 4-month and a 14-month project.

Mantel ADUs · For homeowners

An ADU is the biggest check you'll ever write a contractor. Write it to one who's been vetted like it.

Backyard homes, garage conversions, and additions run six figures. Mantel matches you with licensed, insured builders who do ADUs for a living — and puts their bids side by side before you commit to anything.

Get My ADU Bids

60-second form · No charge to homeowners · No obligation to hire

01 · The problem

Six figures deserves more than a referral from a neighbor

With Mantel

Licensed, insured builders with real ADU experience
Multiple bids on the same scope — apples to apples
Builders who know they're being compared
No charge to you, and no pressure at any step

On your own

One bid, no benchmark, six figures at stake
“ADU experience” that turns out to be one carport
Permit and timeline surprises mid-project
Contracts signed before anyone competed

02 · How it works

One form. Up to three quotes. Your call.

Step 1

Tell us what you need

Sixty seconds: the job, your ZIP, your timeline. That’s the whole form.

Step 2

We match vetted local pros

Licensed, insured adus professionals who do this work in your area — screened before you hear a name.

Step 3

Compare and decide

Quotes side by side. Hire the one who earns it — or nobody. The numbers are yours to keep.

Get My ADU Bids

Common questions

Asked and answered

Is Mantel a builder?: No. Mantel matches homeowners with independent licensed ADU builders. They design, bid, and build; we vet them before you're introduced.
What does this cost me?: Nothing. Homeowners never pay Mantel — the builders pay us for introductions. Your bids aren't marked up.
I'm still deciding whether an ADU pencils out. Too early?: No — real bids are exactly how you decide. Choose “still exploring” on the form and the builders will scope and price it so you can make the call with numbers.
Do you handle permits?: The builders do — permitting experience in your city is one of the things we screen for. It's often the difference between a 4-month and a 14-month project.

Mantel ADUs

Stop guessing what it should cost.

Sixty seconds to fill out. Vetted local pros respond — usually the same day.

Licensed & insured pros only
Up to 3 quotes to compare
No charge to homeowners, no obligation