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Find Basement remodelers in West Mifflin

Avatar for Alliance Construction
Alliance Construction
4.9(
16
)

Angi Approved

In business since 1998

Free estimates

Customers say: Quick response

"John Josephic, owner of Alliance Construction, provided outstanding high-quality service on our roof replacement & gutter installation. John & his wife Kerri are honest, high-integrity people, & easy to work with. John is a great craftsman who performs high-quality work at a fair price. Selecting a roofing company is a challenging task for homeowners, & we highly recommend Alliance Construction for all your roofing & home construction needs. John is very knowledgeable & experienced. John did an outstanding job on our roof & gutter material selection, demo & installation. We are glad that we found John and Alliance Construction! John’s attention to detail included Owens Corning Duration shingles, drip edge, ice & water shields, Titanium synthetic underlayment, pipe collars, ridge vents on both gables, painting furnace pipe, new flashing & counter flash for both chimneys, gutter replacement with rain spouts & flex extensions, soffit & fascia repairs, & gutter guards. Outstanding job!"
5 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Marra Brothers Contracting
Marra Brothers Contracting
4.7(
57
)

Angi Approved

In business since 2014

Free estimates

Warranties offered

"I would recommend John and his crew to anyone. They came and did a great job they answered questions and made me aware of a problem that I didn’t even know I had."
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Bridge City Team LLC
Bridge City Team LLC
New to Angi

Angi Approved

In business since 2010

Free estimates

We are a team of Pittsburgh local engineers with vast construction experience. We can help you design, engineer, and build your dream space. We focus primarily on outdoor spaces: decks, stamped concrete, outdoor kitchens, bars, retaining walls, lighting, A/V, electrical work. We also do basement renovations: bathrooms, wet bars, bedrooms, living space. Give us a call and we'll help build you something amazing!\n\n

Avatar for Pim Pam Pum
Pim Pam Pum
5.0(
10
)

Angi Approved

In business since 2023

Free estimates

Emergency services offered

"He put up a nice wood fence with solar lights. It's beautiful. Also, he was very nice, friendly, prompt and appeared to be very knowledgeable about his work. I would love for him to come back and do some more work for me in the future."
6 neighbors recently requested a quote
BNQ Inc
5.0(
55
)

Angi Approved

In business since 2007

Warranties offered

Customers say: Quick response

"We are so glad that we agreed the contract with the BNQ. The whole process was smooth, professional, and transparent. Personally, I like things to be done in a well-organized and transparent way. Carmen was very knowledgeable about what he was doing and made reasonable plans before the job got started. On the arranged date, he and his assistant Ryan arrived on time and very patiently listened to our concerns and plan of changes. They transformed our old closet into a beautiful walking in shower with great functionality. The other project in the kitchen was a little tricky because the original vent opening in the wall. Carmen was very flexible about our design. He took care of the details and found a good solution for the challenging work. We appreciate his commitment to his professional work. Thanks to Carmen and Ryan, now we have a modern looking kitchen with a very efficient wall mounted hood. Moreover, the price is fair. I had a couple of quotes for our projects. BNQ price range is in the middle. However, the result is wonderful and it is totally worth the money. I would highly recommend BNQ to our friends and family!"
8 neighbors recently requested a quote
Recommended by96%of homeowners
A & J Contracting Company, LLC
5.0(
21
)

Angi Approved

In business since 1995

Free estimates

Customers say: Quick response

"I donâ  t know where to begin to say how satisfied I am with A & J Contracting! I needed my basement renovated ASAP and Mr. Anthony met with me in a timely manner explaining in great detail the work he would perform and how pleased I would be! Let me tell you he did NOT disappoint because he and his partner Mark performed what I call a â  miracleâ  in renovating my basement and went above and beyond my expectations!!!! Iâ  ve shown many the before and after pictures of what I now can call my family room and the response each time was how â  beautifulâ  of a job Anthony did!! If you are in need a great contractor donâ  t look anywhere else but A & J Contractor and call Anthony NOW! My family still canâ  t believe what A & J Contractor did with that old and in bad shape basement!! Very professional and the many years of experience really was on display!! Thank you again Anthony and Mark for restoring our basement!! Iâ  ll definitely be utilizing them in the future and wonâ  t have to look elsewhere!!"
Recommended by100%of homeowners
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Showing 1-10 of 1022
FAQs for basement remodeling projects in West Mifflin, PA

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 West Mifflin, PA homeowners’ guide to basement remodelings

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