Basement Finishing · Thornton, CO

Thornton's Premier Basement Finishing Experts

An unfinished basement is the cheapest square footage you'll ever add to a home. We turn it into living space — framing, egress, drywall, flooring, bathrooms, wet bars, and home theaters — fully permitted and inspected so it counts as real, sellable finished area.

9+
Years in Business
500+
Projects Completed
★ 5.0
Google Rating
$2M
Liability Insured
★ Licensed Class C Contractor BBB Accredited $1M–$2M Liability Insured ★ Serving Thornton & Denver Metro
What We Do

Basement Finishing in Thornton Done Right

An unfinished basement is the cheapest square footage you'll ever add to a home. We turn it into living space — framing, egress, drywall, flooring, bathrooms, wet bars, and home theaters — fully permitted and inspected so it counts as real, sellable finished area.

Thornton's growing fast, and a lot of its homes are hitting the age where a kitchen or basement finish pays off — we're up north often. We serve Eastlake, Original Thornton, Riverdale, and North Creek, and the surrounding Thornton neighborhoods — with the same licensed, insured, owner-led crews on every job.

Why Choose Us

Why Thornton Homeowners Choose AD's

🏆 Licensed, Insured & BBB Accredited

Class C licensed with $1M–$2M liability coverage, and proper Thornton permits pulled on every job.

👷 Owner-Led Quality Control

Adrian Delgado Jr. oversees every project personally — scheduling, field work, and final walkthrough.

⭐ 500+ Projects, 5-Star Track Record

Nine years and hundreds of completed Denver-metro homes, with verified five-star reviews.

🤝 One Accountable Team

Finished basements add usable square footage at a fraction of the cost of an addition — and a legal egress + bathroom build opens the door to rental income.

$500 Credit Toward Your Basement Finishing Project

Ask your estimator during your free Thornton estimate to claim it when you book.

Claim Your $500 Credit →
Client Reviews

What Thornton Clients Say

★★★★★

“Professional, clean, and finished ahead of schedule. Couldn't be happier.”

Sarah M. — Thornton, CO
FAQ

Basement Finishing Thornton — Questions

How much does a basement finish cost in Thornton?

Every basement finish is priced to scope — size, materials, and condition all matter. That's why we give a free, no-obligation estimate after seeing the space, so the number is real, not a guess. Ask about our $500 remodel credit when you book.

How long does a basement finish take?

Finished basements typically run 6–12 weeks depending on scope. We give you a written schedule up front and Adrian oversees the timeline personally so it stays on track.

Are you licensed and insured to work in Thornton?

Yes. AD's Construction LLC is a licensed Class C contractor, BBB accredited, and carries $1M–$2M general liability insurance. You're covered from day one, and we pull the proper Thornton permits where required.

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Free Estimate

Let's Build Something Great in Thornton

Tell us about your project and we'll get back within 24 hours with a free, no-obligation estimate.