Basement finishing in Naperville and Chicago’s western suburbs Call (708) 470‑0157
Naperville, Illinois

Basement Finishing in Naperville, IL

We turn unfinished Naperville basements into family rooms, guest suites, bathrooms, bars and home gyms, in both the DuPage and Will County parts of the city. One professional crew handles the design, the permit and every trade, and you get a fair, written price.

  • Free in‑home estimate and written, line‑item quote
  • Permits and inspections handled for you
  • Licensed & insured · 2‑year workmanship warranty

Prefer to talk? Call (708) 470‑0157 · Mon–Sat, 7 am – 5 pm

Get your free Naperville estimate

Tell us about your basement. We’ll call within one business day to set up a visit.

No obligation. We never share your information.

Basement remodeling in Naperville

Finished basements built for the way Naperville families live

A finished basement is usually the most affordable way to add real living space to a Naperville home. You don’t need to buy a bigger house or build an addition. The foundation, walls and utilities are already there; we turn them into rooms your family will use every day.

We start with a visit to walk the space with you. We measure, look at the ductwork, beams, support posts and plumbing, and talk about how you want to use it. Then we draw a layout that works around what’s already there, so you aren’t paying to move things that don’t need to move.

  • Egress for bedroomsAny basement bedroom needs an egress window. We plan its location early so it works with your layout and your yard.
  • Ducts, beams and ceiling heightWe plan soffits around ductwork and beams, or paint an open ceiling black for a modern look and extra height.
  • Keeping it dryBefore we frame, we check the sump pump and any signs of moisture, and use moisture-resistant materials where they matter.
  • Adding a bathroomWe check for an existing rough-in or the need for an ejector pit, so a basement bathroom is planned right from day one.
What we build

Ideas for your Naperville basement

Every basement is custom. These are the rooms Naperville homeowners ask us for most.

Finished basement with wood-look flooring, French doors and recessed lights

Family & media rooms

Open, comfortable living space with recessed lighting, durable flooring and a place for the big TV.

Basement bathroom with white tile shower, pebble floor and brushed gold fixtures

Bathrooms & guest suites

Full bathrooms and bedrooms with egress windows, so guests or older kids get their own private space.

Basement bar with reclaimed wood wall and polished concrete floor

Bars, gyms & offices

Wet bars for entertaining, home gyms with rubber flooring, and quiet offices away from the noise.

Done right, done legally

Permits and inspections in Naperville

The City of Naperville requires a building permit for basement build-outs and other alterations to existing homes. Permits are issued by the city’s Building Permits office, and applications go through the city’s online permit portal.

We take care of it for you. We prepare the drawings, submit the application, and schedule the inspections as the work moves from framing to electrical to the final walkthrough. A permitted basement is safer, and it counts when you sell the house.

Our work

Basements we’ve finished

Recent Fort ENG basement projects across Chicago’s western suburbs.

See all projects
Finished basement with wood-look flooring, French doors and recessed lights Open basement living area with large-format tile Finished basement hallway with painted exposed ceiling Basement bar with reclaimed wood wall and polished concrete floor Venetian plaster feature wall in a finished basement Finished basement with wood-look floors and recessed lights
How it works

From first visit to final walkthrough

  1. 01

    Free consultation

    We visit your Naperville home, walk the basement with you and take measurements.

  2. 02

    Design & layout

    We draw the floor plan around your ductwork, plumbing and posts, and help you pick finishes.

  3. 03

    Written estimate

    You get a line‑item quote and a schedule, so you know the cost before work starts.

  4. 04

    Permit, build & walkthrough

    We pull the permit, build, pass inspections and finish with a walkthrough together.

Reviews

What nearby homeowners say

“Finished my basement with FORT ENG team. Overall very happy with the results. Quality is great. Good communication throughout the project. Very reasonable pricing compared to other quotes I received. They resolved any issues I had throughout the process.”
Joseph J. · Bolingbrook, IL · Basement remodel
“FORT ENG team converted a loft and laundry room into a bedroom and bathroom. They were great to work with, as well as all of their subcontractors. The crew is professional and keeps their word. We couldn’t be happier with the whole project and would highly recommend.”
Lara M. · Downers Grove, IL · Bathroom & room remodel
FAQ

Basement finishing in Naperville: common questions

Do I need a permit to finish my basement in Naperville?

Yes. The City of Naperville requires a building permit for basement build-outs. We prepare the drawings, apply for the permit and schedule all inspections as part of your project.

How much does it cost to finish a basement in Naperville?

It depends on the size, the rooms you want (a bathroom or wet bar adds the most), and the finishes you pick. We give you a free, line-item written quote after measuring your basement, so you know the full cost before any work starts.

How long does a basement finish take?

Most basement finishes take about 6–8 weeks, depending on the size of the space and what you’re adding. A bathroom or wet bar takes a bit longer than open living space. Your estimate comes with a written schedule, including the permit and inspection steps, so you know what to expect week by week.

Can you add a bathroom or wet bar to my basement?

Yes. Basement bathrooms and wet bars are some of our most requested projects. We check your plumbing first, including any existing rough-in, so they’re planned correctly.

Do you serve all of Naperville?

Yes. We work throughout Naperville, in both DuPage County and Will County, and in nearby towns like Aurora, Plainfield, Bolingbrook, Downers Grove and Lisle.

Ready to finish your Naperville basement?

Book a free, no‑pressure estimate. We’ll walk the space with you and give you a clear plan and price.

Schedule my estimate or call (708) 470‑0157

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