Basement Remodeling Philadelphia
Finishing & Full Renovations
Philadelphia’s licensed, insured basement experts. We turn damp, unused basements into
beautiful, dry living space you’ll love.
Why Philadelphia Homeowners Choose Us
We deliver top-quality basement remodeling tailored to your home, ensuring a dry, durable, and
stress-free renovation from start to finish.
Licensed & Insured
Fully licensed, insured, and background-checked PA contractors you can trust in your home.
Free In-Home Estimates
No-pressure quotes with transparent, fixed pricing and no surprise change orders.
Local Basement Experts
Specialists in Philly rowhomes, low ceilings, and waterproofing older homes.
Satisfaction Guaranteed
Backed by our workmanship warranty, money-back promise, and 100% satisfaction guarantee.
About Us
From Unfinished Basement to Beautiful Living Space
You’ve got more space down there than you think. It’s just hiding behind low ceilings, a steel column, and ductwork running where you’d want to stand. We design around all of it. Our tray ceilings tuck the ducts out of sight, that column becomes a finished feature wall, and the dead space under your stairs turns into built-in storage you’ll actually use.
You don’t lose a single usable inch to awkward layout, because we plan the room around how your family will live in it, not around what’s easiest for us. Want the home gym tucked in the corner? The playroom where you can hear the kids from upstairs? We map it before we ever pick up a tool.
The result is a basement that feels open, intentional, and bigger than you imagined. You get more real living space in the home you already own. We give you the room to grow without the cost of moving or the stress of leaving the neighborhood you love.
Our Basement Remodeling Process
We Make Finishing Your Basement Simple
You’ve probably heard the horror stories, maybe even lived one. A contractor who vanished mid-job, a quote that quietly doubled, permits that were never actually pulled. We built our entire process to make sure none of that ever happens to you. From your first call to your final walkthrough, you always know what’s happening, when it’s happening, and exactly who’s responsible for it.
Schedule a Free In-Home Visit
We come to your home and go straight down to the basement to check the real conditions. We look at your ceiling height, moisture levels, foundation walls, support columns, and where the ductwork and pipes run. You get honest answers on the spot about what your basement can become, not a number pulled out of thin air.
Home Inspection & Planning
Before we talk finishes, we make sure your basement is dry and ready. We inspect for water intrusion, check the foundation and subfloor, and plan any waterproofing or drainage your space needs first. We handle every L&I permit and approve it before a single wall goes up, so finishing a damp basement never turns into an expensive mistake.
Budget Approval & Build Phase
You get a fixed-price contract with every line itemized, so there are no hidden costs and no surprise change orders without your say-so. Then our dedicated crew gets to work on a set schedule, installing moisture-resistant materials, framing, insulation, flooring, and finishes built to last in a below-grade space.
Final Walkthrough & Delivery
We walk every inch of your finished basement together, and nothing is “done” until you genuinely love it. You get a dry, warm, beautifully finished space that looks right and lasts for years, your 10-year warranty in writing, and a basement that quickly becomes the favorite room in the house.
23+
Years Of Experience
Basements remodel from start to finish — by one trusted crew.
BASEMENT REMODELING
From Unfinished Basement to Beautiful Living Space
Your unfinished basement beneath your Philadelphia home is wasted potential. Exposed pipes, a damp concrete floor, and clutter sit where a great room could be. In most cases, it just needs the right plan.
If your basement has the headroom to finish, we can help. We box in utilities, frame the walls, and swap bare concrete for warm, durable flooring, turning a forgotten lower level into real, livable square footage.
Ready to transform your basement? Call today for a free assessment.
Basement Remodeling Across Philadelphia Neighborhoods & Surrounding Areas
We don’t just work in Philadelphia. We know it. We know the stone foundations of Chestnut Hill, the tight rowhome basements of South Philly, and the older twins out in the suburbs. Every neighborhood brings its own quirks, and after years of finishing basements across the region, we’ve seen them all. When you call us, you’re hiring a team that already understands your home.
Our Gallery
The Real Problems Philadelphia Homeowners Face With Their Basements — And How We Solve Them
Most basement projects don’t go wrong during the build. They go wrong before it, when the real problems get ignored. What we hear from homeowners across the city, and how we handle each one.
Basement floods or smells damp: Old stone foundations and high water tables let water in. We fix it first with French drains, sump pumps, and sealed walls, then we finish.
Ceilings are too low: Common in Fishtown and South Philly rowhomes. We add height with underpinning, or design smart low-profile layouts that keep your headroom.
Do I even need permits? Yes, often. We handle all Philadelphia L&I permits for egress, electrical, and bathrooms. You never make a trip downtown.
Juggle with subcontractors: One team, one project manager, start to finish. One company stands behind the whole job.
Is Finishing Basement Worth It in Philadelphia?
In most Philadelphia homes, yes. A finished basement is the cheapest square footage you’ll ever add, because the walls, floor, and roof already exist. You’re not building a new box. You’re making the one you have livable.
A finished basement in the Philadelphia market typically returns about 70 to 75 percent of its cost at resale. Spend $40,000 and you can expect to recover roughly $28,000 to $30,000 in added value, plus years of use you actually enjoy before you ever sell.
It also helps your listing move. In neighborhoods like South Philly, Manayunk, and Roxborough, buyers compare similar rowhomes side by side. A finished lower level is often the detail that wins the offer.
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How Much Does It Cost to Finish a Basement in Philadelphia?
Ranges are Philadelphia-market estimates and vary by home.
Finishing a basement in Philadelphia costs between $30,000 and $75,000 for most homes, or about $35 to $75 per square foot.
Budget is the first thing every homeowner asks about, so let’s be straight. Expect $30,000 to $75,000 for a finished basement in Philadelphia, around $35 to $75 per square foot.
A dry, open basement and a wet rowhome basement cost very different amounts to finish. In Philadelphia, the full range runs $30,000 to $75,000, roughly $35 to $75 per square foot.
Update Your Bathroom to Match Your Style
A Basement Remodeling Company Philadelphia Homeowners Trust
Trust isn’t built with words on a website. It’s built with paperwork you can check and work that holds up.
Johnny Comoara Construction is licensed, insured, and bonded in Pennsylvania under HIC. That license means you’re protected if anything goes wrong, and it means we answer to the state, not just to ourselves. Every crew member who enters your home is background-checked.
Our reputation is public. We hold a 4.9-star rating across 280-plus Google reviews and an A+ rating with the Better Business Bureau. We’re also a member of the Building Industry Association of Philadelphia, which keeps us current on local code and best practice.
We also stand behind the outcome with a 100% satisfaction guarantee. You see the plan, the price, and the timeline before we start, and you sign off at every stage.
Our Services
What’s Included in Our Full Basement Remodel
Design & Space Planning
Before anything gets built, we map the space around how you’ll actually use it. We plan the layout, traffic flow, and storage, then work within your basement’s real ceiling height and column spots so the finished room feels open, not boxed in.
Framing, Insulation & Drywall
We frame the walls, add proper insulation for warmth and energy savings, and hang clean, level drywall. In older Philadelphia homes, we use moisture-resistant materials that hold up against the damp these basements are known for.
Flooring & Ceilings
Floors and ceilings set the whole feel. We install durable, moisture-friendly flooring like luxury vinyl plank or tile that suits a below-grade space. For ceilings, we fit clean drywall or low-profile drop systems that protect your headroom in tight rowhome basements.
Electrical, Lighting & HVAC
A basement should feel as comfortable as the rest of your home. We run code-compliant wiring, outlets, and switches, add recessed lighting that brightens a windowless space, and extend heating and cooling so the room stays usable in a Philadelphia January and July alike.
Bathroom & Wet Bar Additions
Want a full bath, a powder room, or a wet bar? We run the plumbing across the concrete floor and tie it in properly. This is detailed work, and it’s also what turns a finished basement into a true guest suite or entertainment space.
Waterproofing & Moisture Prep
This is the step most contractors skip, and we never do. Before finishing, we address grading, install drainage or a sump pump where needed, and seal the walls with a vapor barrier. Dry first, beautiful second. It’s why our basements last.
Featured Plumbing Services in Philadelphia
Clogged Bath
A clogged bath can quickly lead to big problems besides being difficult to take a bath. Don’t hesitate to call in a professional plumber right away when you have standing water in the bath. Typical DIY fix attempts are usually not enough to actually solve the problem, and can sometimes make things worse. Contact us and we can send capable local plumbers to help repair your clogged bath.
Clogged Bath
A clogged bath can quickly lead to big problems besides being difficult to take a bath. Don’t hesitate to call in a professional plumber right away when you have standing water in the bath. Typical DIY fix attempts are usually not enough to actually solve the problem, and can sometimes make things worse. Contact us and we can send capable local plumbers to help repair your clogged bath.
Clogged Bath
A clogged bath can quickly lead to big problems besides being difficult to take a bath. Don’t hesitate to call in a professional plumber right away when you have standing water in the bath. Typical DIY fix attempts are usually not enough to actually solve the problem, and can sometimes make things worse. Contact us and we can send capable local plumbers to help repair your clogged bath.
Clogged Bath
A clogged bath can quickly lead to big problems besides being difficult to take a bath. Don’t hesitate to call in a professional plumber right away when you have standing water in the bath. Typical DIY fix attempts are usually not enough to actually solve the problem, and can sometimes make things worse. Contact us and we can send capable local plumbers to help repair your clogged bath.
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What Your Underused Philadelphia Basement Could Become
Family Room & Home Theater
Give the kids, the game, and movie night their own floor. A finished basement makes a perfect family room or home theater, with cozy seating, big-screen wiring, and soundproofing that keeps the noise downstairs where it belongs.
Private Home Office or Studio
Working from home hits different when you have a real door to close. A basement office sits away from the household noise, holds built-in desks and storage, and gives you the quiet focus a kitchen-table setup never will.
Guest Suite or In-Law Suite
Turn your lower level into a private retreat for visitors or family. With a bedroom, a full bath, and a small kitchenette, a basement guest suite gives everyone their own space, ideal for aging parents or long-stay guests.
Home Gym & Wellness Space
Skip the membership and the drive. A basement gym puts your workout steps from your bedroom, with the right flooring for equipment, good ventilation, and lighting that keeps a windowless space feeling fresh.
Wet Bar & Entertainment Lounge
Built for hosting. A wet bar and lounge area, with a beverage fridge, seating, and the right lighting, makes your basement the spot friends gather, whether it’s an Eagles Sunday or a quiet nightcap.
Legal Basement Apartment or Rental Unit
This one can pay for itself. With proper egress, ceiling height, and a permit, your basement becomes a legal rental, a real draw in a city full of students and young professionals near Temple, Drexel, and Penn.
Looking for a trusted basement remodeler in Philadelphia? Call 215-870-4084 for a free estimate. We turn damp, unused basements into finished living space, with honest pricing and expert work.
Basement Problems We Fix
Every basement tells us where it hurts before we ever pick up a tool. A musty smell means moisture. A cold floor means no insulation or vapor barrier. A short ceiling means we plan smart instead of giving up. We’ve seen all of it across Philadelphia rowhomes, twins, and older homes in Bucks and Chester County, and none of it scares us off.
We fix the cause, not the symptom. A lot of contractors will frame right over a damp wall and hand you a nice-looking room that fails in two winters. We deal with the water, the cracks, and the wiring first, then we finish. That order is the difference between a basement you enjoy for years and one you pay to redo.
Contact us at (215) 870-4084 for basement remodeling done right by a team you can trust. Our Philly basement pros are ready when you are.
How Long Does a Home Remodeling Project Take?
Project timelines depend on scope and structural changes. In Philadelphia, permit approval through the Department of Licenses and Inspections can also affect the schedule. A bathroom remodel in a Philadelphia rowhouse typically takes 2 to 3 weeks. A full kitchen remodel runs 4 to 6 weeks on average. Basement finishing projects take 4 to 8 weeks depending on size and plumbing requirements. Home additions can run 8 to 16 weeks depending on permits and structural complexity.
Are you a licensed remodeling contractor?
Yes. Johnny Comoara Construction is a fully licensed and insured remodeling contractor serving Philadelphia and surrounding areas. Every project we complete carries general liability insurance and workers compensation coverage.
Philadelphia Licenses and Inspections (L&I) requires all contractors performing structural, electrical, or plumbing work to hold valid licensure. We meet every requirement before we set foot on a jobsite.
Do You Offer Financing for Home Remodeling Projects?
Yes. Financing options are available for qualified homeowners in Philadelphia. Financing helps spread the cost into manageable monthly payments. Options may include fixed-rate installment loans or longer-term payment plans. We review estimated project cost first. Then we guide you through available financing solutions. All terms, rates, and repayment schedules are provided in writing before approval. This ensures full transparency before construction begins.
Testimonials
what homeowners tell us once their basement is finished.
“Johnny Comoara Construction transformed our unfinished basement into a beautiful and functional living space complete with a custom wet bar, luxury bathroom, bedroom, and walk-in closet. From the very beginning, the team worked closely with us, offering valuable recommendations on design, materials, and the best ways to maximize our space.”
David Thompson
South Philadelphia
“We are extremely pleased with the final result and especially impressed by the professionalism, communication, and attention to detail throughout the entire process. From initial planning and permits to construction and final inspections, everything was handled efficiently and with care. I would highly recommend Johnny Comoara Construction to anyone looking for a quality home remodeling company in Philadelphia.”
Lisa Anderson
Chestnut Hill
“We hired Johnny Comoara Construction to remodel our basement, and the entire experience exceeded our expectations. The team was professional, responsive, and easy to work with from start to finish. They kept us informed throughout the project, stayed on schedule, and paid close attention to every detail”
Michael Reynolds
Fishtown
FAQ
Philadelphia Homeowners Ask — We Answer
A finished basement is one of the most rewarding investments you can make in your home, and you deserve to understand every part of it before you begin. We believe informed homeowners make the best decisions, so we answer your questions openly and completely.
Over the years, we’ve found that Philadelphia families tend to ask the same thoughtful questions before they start, about cost, moisture, permits, and what their space can truly become. Here are the ones we hear most, answered the same honest way we’d want them answered for our own home.
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