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  • Verified reviews icon87
    Verified basement remodels reviews

Top-Rated Basement remodelers in Lansdowne - Updated Nov 2026

Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Hired them for 3 projects I have installed this basement waterproofing solution in 2 homes. System speaks for itself. Nothing better on the market. Work was first rate. Expectations were presented prior to the project. Details on what would happen and how the project would go. Would not hesitate to use again ERV installed New basement egress. This project did not go as planned, but not at the fault of basement systems. Was originally supposed to get a BILCO door but due to unforseen issues, that was not able to happen. They ended up installing a new staircase from my basement to ground level. Work was first rate and ended up better than a bilco door. Company re landscaped and everything is as it was. All work performed was top notch and no issues on anything they have done"
Show Booth
Tough day
Found it in a crawlspace
What is it?
Found it in a crawlspace

+142

Response time1 day
Recommended by88%of homeowners
Avatar for Santosusso Construction Inc.
Santosusso Construction Inc.
5.0(
10
)
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

Approved

In business since 1987

Free estimates

Customers say: True professional

Welcome to Santosusso Construction!\n\nLocated in Philadelphia, PA. Covering the Tri-State area. We are licensed & insured, offering free estimates. We specialize in residential work including: New Construction, Total Gut Renovations, Remodels, Additions, Decks, Kitchen / Bath, Roofs,Concrete,Basement Dig-outs, Brick Fronts, Demo, Etc.\n\nI'm Steve Santosusso owner and operator of Santosusso Construction Inc. Santosusso Construction has been a licensed company since 1988, beginning in Los Angeles, California. After being involved in construction for a number of years, I attended and graduated from Pacific Coast Contractor's School. The curriculum included general knowledge of all trades, estimating, and OSHA laws. In 1993 I moved my company to the East Coast where I've been licensed in PA ever since. We are a small personal company with hands on attention to every project. Our employees are well trained and trust-worthy, as are all sub-contractors, whom I have used for many years. This combination of employees and sub-contractors provides a team atmosphere with quality work as our goal.\n\nCheck us out on Facebook:\nhttps://www.facebook.com/SantosussoConstructionInc/

Additional Photos
Additional Photos
Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Pro Services
Pro Services
4.8(
150
)
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

We offer home remodeling and maintenance services, including kitchen and bathroom renovations, flooring, tile installation, painting, and cabinet and countertop installation. We also provide chimney inspections, maintenance, and rebuilds, along with air duct cleaning and maintenance. From interior upgrades to essential home care, we help make your home more beautiful, comfortable, and functional.\n

Chimney Cap Installation
Smoke chamber before
Chimney Sweep Project
Fireplaces Project
Chimney Sweep Project

+36

Response time4 days
Response rate100%
47 neighbors recently requested a quote
TS Renovations, LLC
New to Angi
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

I'm a highly skilled contractor who's been in the home remodeling field for over 25 years and has just recently started my own company due to the high volume of work I've been blessed to receive. I enjoy creating One of a kind kitchens and baths. My skill set includes carpentry , plumbing, electrical, masonry, roofing and siding, flooring, painting and drywall. My history of repeat customers and referrals is impeccable

First Development Builders Inc
New to Angi
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

Approved

In business since 1985

Free estimates

Offers commercial services

Welcome to First Development Builders Inc! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! \n

1 neighbors recently requested a quote
Avatar for Noah’s Drywall llc
Noah’s Drywall llc
4.8(
491
)
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"JA Drywall LLC really helped ease to the stress of our kitchen remodel. Juan was prompt to response to my initial phone call, while Isa was out the next day (a holiday weekend nonetheless) to measure and get us a very reasonable estimate. Within a few days, our walls and ceiling were up and Noel was putting the finishing touches on the sanding. Without these guys, our project wouldve been delayed for weeks! Big thanks to a great crew that does great work! Will definitely be in touch when we look to tackle our next project."
Recommended by97%of homeowners
Avatar for Linvill Home Remodeling
Linvill Home Remodeling
5.0(
14
)
Basement - Remodel

Serving Lansdowne, PA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Wonderful experience with Linvill Home Remodeling! I had my entire bathroom gutted and redone. We are very pleased with the outcome of this big project in our home. From fair pricing to a quick remodeling experience! Highly recommend."
Bathroom Remodel
🚨 New curb appeal 🚨
Bathroom Remodel
Back room Remodel
Kitchen Remodel

+122

Recommended by100%of homeowners
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Showing 1-10 of 376
Basement Remodel FAQs, answered by experts

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

It’s less expensive to finish your basement than it is to build an addition to your home. The average cost to refinish a basement is $32,000 (between $7 and $23 per square foot) while building an addition to your home costs $50,325 ($80 to $210 per square foot). Depending on the size of your basement and other factors, like moving plumbing and electrical, refinishing a basement is a more cost-effective option in most cases.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

Yes, most general contractors require an initial down payment. A reasonable deposit is typically between 10% and 25% of the total project cost, although this can vary by project size and location. This upfront payment helps the contractor cover initial costs like materials, permits, licensing, and hiring subcontractors. The remaining balance is usually billed according to a schedule outlined in your contract, often tied to project milestones or completion dates. Be cautious of contractors who ask for a large deposit of 50% or more, as this could be a red flag for a scam.

Rebar is an essential part of reinforcing a basement floor, as not having it can impact its structural integrity. It helps absorb the tension factors that contribute to cracks in your floor and strengthens its load-bearing capabilities by evenly distributing the weight. Not including rebar could lead to an unstable floor, so don’t skip it!

The Lansdowne, PA homeowners’ guide to basement remodels

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