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  • Verified reviews icon165
    Verified basement remodels reviews

Top-Rated Basement remodelers in Radnor - Updated Nov 2026

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

Serving Radnor, PA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"my whole home feels fantastic. very courteous and knowledgeable individuals. I would hire them again for all my basement waterproofing and basement remodeling needs in the future. Its hard to find a family run business with amazing values and professionalism. these guys have it all."
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 Old Country Construction, Inc.
Old Country Construction, Inc.
4.8(
25
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quick response

"Paulâ s and his team are great. OCC has beautifully finished my 1000 sqâ basement with new bathroom. They have installed sliding glass doors. Full gut and remodel of main bathroom. Drywall work and painting of living room, kitchen, bedroom, and hallway. Pricing is always on point, work is always quality, and materials recommendations are great. I have referred friends and family to OCC."
Decking
Decking
Decking
Decking
Decking

+156

Response time2 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.5(
746
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"We love our basement remodel. Peter, Alex and his team were here when they said theyâ d be here, completed the job as described, and kept us updated along the way. The basement now looks and feels clean and bright. The additional space doesnâ t feel like a basement at all and is enjoyed by the whole family. We highly recommend Lux Renovations."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+40

Response time1 day
Response rate100%
222 neighbors recently requested a quote
Avatar for BMR BelMax Remodeling
BMR BelMax Remodeling
4.8(
67
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Maksim and his guy are very professional. They did an excellent job at my basement project. Always on time, and meticulous in performing their work. Always answer my questions and concern. I can highly recommend BMR Belmax Remodelling."
Shower
Bathroom
Bathroom 2
Bathroom 3
Shower base

+48

Response time6 hrs
1 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Nelson General Contractor LLC
Nelson General Contractor LLC
5.0(
13
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

**Now Offers Financing** At Nelson General Contracting it is our mission to elevate architectural landscape through unparalleled craftsmanship. We are committed to delivering superior construction solutions, blending timeless design with cutting-edge efficiency. Our mission is to exceed client expectations, leaving a lasting legacy of quality, integrity, and excellence in every project we undertake. Contact us to discuss your next project today!

Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Had to build a more beefed structural wall.
Handymen Project

+21

4 neighbors recently requested a quote
Recommended by53%of homeowners
Avatar for Manfredia's Carpentry & General Contracting, LLC
Manfredia's Carpentry & General Contracting, LLC
4.7(
138
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1989

Free estimates

Warranties offered

"I originally hired Wally to replace two support beams that span a bilco opening on my 200+ year old stone house. The job was very delicate because temporary supports had to be installed before the original log beams could be removed. I had visions of my entire 3-story stone wall collapsing, but once I saw how meticulously his crew worked and the incredible results I knew that it had been done right. Once I realized Wally’s ability, I quickly hired him to do other repairs which included: -Replacing a beam in the basement -Thorosealing the stone foundation wall in the basement -Replacing two concrete pads on my sidewalk that were cracked -Fixing a 3’x3’ sink hole in my driveway -Pour a concrete pad for my Generac generator to sit on -Filling in an old vent hole and landscaping to ensure that the ground next to the house slopes away from the house When it comes to your home, there is little that Wally and his team can’t do. I give Manfredia's Carpentry my highest recommendation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Response time7 hrs
10 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for PG Tedesco Construction
PG Tedesco Construction
4.4(
90
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Paul was excellent to work with. We had to make many changes during our remodel. He was very accommodating and easy to work with. Our ADA remodel to convert a bedroom and bathroom making it wheelchair accessible turned out beautifully! We are very happy and would highly recommend His company ."
BEFORE
AFTER
House
House
House

+2

Response time2 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for MNB Renovations
MNB Renovations
5.0(
10
)
Basement - Remodel

Serving Radnor, PA and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Matt and his team with MNB Renovations did a 32 x 24 addition that was basically a home build from the ground up. I am still surprised for the size of this project how stress free the process was. Matt was very detailed and checked in on everything to make sure we were getting what we wanted. In the end he asked us to make a list of anything that needed to be addressed and there was absolutely nothing to mention. They did a perfect job, the quality of the work is amazing, and the entire team was very nice, professional, and trustworthy! I absolutely recommend this company to others and will definitely use them again in the future!"
Kitchen Remodel
New stair case and great room
Oak staircase
Kitchen Remodel
Entry way

+181

Response time5 days
Response rate100%
3 neighbors recently requested a quote
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Basement Remodel FAQs, answered by experts

Yes, most general contractors require an initial down payment, typically between 10% and 25% of the total project cost. This upfront payment helps cover the costs of materials, permits, and subcontractors. The remaining project costs are usually billed after specific project milestones are reached or on set completion dates, as outlined in your contract. Be wary of contractors who require a significant deposit of 50% or more upfront, as this could be a red flag for a scam.

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

Yes, adding a walkout basement will usually bump up your property value. Most homeowners prefer walk out basements because the exposed wall that’s level with the ground provides more utility via a ground-level exterior entrance, and they can fit full windows, which adds natural light and ventilation to the basement area. The only exception might be in areas prone to tornadoes, as walkout basements aren’t as safe as regular basements during a tornado, particularly if they include large windows or glass sliding doors.

To determine if your basement walls are suitable for finishing, assess their structural integrity and moisture conditions. Look for any signs of damage, such as cracks, bowing, or excessive moisture. Ensure proper drainage and address any underlying issues before proceeding. 

Consult with a professional if you're uncertain about the structural stability or potential risks associated with finishing your basement walls.

Joists and beams are both part of the flooring system above your basement, with the beams spanning the length of your home and getting support from vertical posts underneath, and joists usually spanning half the width of your home with no support posts underneath. The floor joists provide even support to the subflooring and flooring above, and they distribute that load to the beams. The beams then distribute that load down through the support posts to the foundation.

The Radnor, PA homeowners’ guide to basement remodels

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