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Find Basement remodelers in Ottawa

Avatar for Lavalle Construction
Lavalle Construction
4.9(
35
)

Serving Ottawa, IL and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Brian LaValle is a God Send!! Bought my home for under 20k and Brian has done everything from the basement to the roof!!! Drive by and Look at It. 705 Lundy St Streator. It sat for 5 1/2 years after a destructive foreclosure. There was no bathroom! Everyone Loves my bathroom now. The house looks Modern and heâ  s SO professional and comfortable and has been working on my home for well over a year so we pitched him keys to the house. I slept in the other day while him and his crew, always making sure my cats donâ  t get out, installed my laundry room floor. Never thought something like that could happen! Grade A work! Im So Proud of my house! This guy Checks My House to assure itâ  s sound and safe! The addition was attached to the original house. My roof was stressed and leaking. He â  tiedâ  (their lingo) the 2 lil houses together. Now Iâ  m saving up for him to do the roof. I flipped and remodeled 4 homes of my own when I was younger. This guy is the best. I humbly admit. Brian LaValle 815-674-8152"
Roof
Soffit and fascia damage
Soffit damage
Soffit damage
Fascia repair

+15

Response time1 day
Recommended by100%of homeowners
Christensen Carpentry
3.7(
3
)

Serving Ottawa, IL and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"They went above and beyond. They treated my house like it was theirs. They wouldnâ t just put my roof on but they checked to make sure it was ok to put the new shingles on. They were respectful of my premises. They got the work done and cleaned up all their messes. I would hire them again because they are very honest!"
Response time6 hrs
Recommended by66%of homeowners
Avatar for Klock Home Services
Klock Home Services
New to Angi

Serving Ottawa, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hi, I’m Kevin with Klock Home Services, proudly serving the Fox Valley area. I provide reliable, detail-oriented handyman and home repair services at fair prices. From furniture and drywall repair to minor carpentry, fixture installs, and general maintenance, I treat every project like it’s in my own home. Whether it’s a small fix or a larger task, you can count on quality work done right the first time.

Avatar for MidAmerica Basement Systems
MidAmerica Basement Systems
4.5(
140
)

Serving Ottawa, IL and surrounding areas

In business since 1989

Free estimates

Warranties offered

"Exceptional service, very professional, very knowledgeable and honest from the initial contact to finishing the job! Very impressed with this company! My basement now looks great as they sealed the cracks to reduce the radon levels and lined the walls."
Recommended by87%of homeowners
Avatar for Preferred Roofing & Exteriors
Preferred Roofing & Exteriors
4.9(
425
)

Serving Ottawa, IL and surrounding areas

Free estimates

Warranties offered

"Preferred roofing & Exteriors messaged me within half hour of messaging them. Fastest of the 3 companies I messaged. Mike showed up, he was professional, very knowledgeable of what was needed to be done. He inspected my attic and roof and found the issue. He did not charge me a service fee like the other two companies were trying to do. Super cool guy. If You were to ever need anything he's your guy. Thanks Mike"
Recommended by96%of homeowners
Avatar for WARNER'S DECKING INC
WARNER'S DECKING INC
4.9(
27
)

Serving Ottawa, IL and surrounding areas

In business since 1988

Free estimates

Warranties offered

"The build went great despite all the rain we had. And was delivered to us as promised the day before our party, power washed and ready to go. When we are ready to remodel our kitchen we will be looking to Chris Warner and his team of professionals to do that too. <br />"
Recommended by100%of homeowners
Avatar for Erie Construction Midwest Inc
Erie Construction Midwest Inc
3.8(
78
)

Serving Ottawa, IL and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"Erie Construction replaced all our windows and sliding door in a timely and efficient manner. The staff was very professional and a pleasure to work with. We would recommend Erie to anyone."
Recommended by69%of homeowners
Avatar for Bix Basement Systems
Bix Basement Systems
4.0(
42
)

Serving Ottawa, IL and surrounding areas

In business since 1960

Free estimates

Warranties offered

"Very good service across the board. Sales professional was punctual, knowledgeable, and polite. Our concerns were addressed and solution provided. The man that performed the work was great as well, he explained the work again and was done on time. The job came in well under budget, and we honestly wouldn't have known, they could have charged us the full amount but didn't. One note: This job was to address water seeping in through a crack in the basement and we haven't had much precipitation since the job has been done. While I have confidence that the problem is solved, I don't have any real proof yet."
Recommended by73%of homeowners
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FAQs for basement remodeling projects in Ottawa, IL

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Ottawa, IL homeowners’ guide to basement remodelings

From average costs to expert advice, get all the answers you need to get your job done.