Business Details
50+ Years
experience
Trusted Window & Door Installation in Philadelphia
Founded in 1959, DeFinis And Sons Windows & Doors is a family-run business specializing in the expert installation of vinyl replacement windows, steel entry doors, security storm doors, and sliding patio doors. Our team of fully insured professionals brings over five decades of combined experience to every project, offering personalized consulting and a comprehensive selection of products tailored to individual preferences. With a commitment to quality craftsmanship and customer satisfaction, we have grown to become the largest window and door installation company in the Delaware Valley. Our services include free in-home estimates, a vast showroom featuring over 350 door options and custom window solutions, and a 100% workmanship satisfaction guarantee.Recognized with the Angies List Super Service Award annually since 2010 and an A+ rating from the Better Business Bureau, we prioritize energy efficiency, durability, and aesthetic appeal in every installation. Our products are designed to enhance home value through improved energy savings and reduced maintenance costs, backed by a robust warranty and dedicated post-sale support. With a focus on innovation and customer-centric service, we continue to lead the industry as a trusted local authority in window and door solutions.
Services
Double Hung Windows
Bow & Bay Windows
Garden Windows
Sliding Patio Doors
Fiberglass Doors
Basement Windows
Storm Doors
Custom Window Installation
Energy-Efficient Solutions
Showroom Consultations
Details
- Year established: 1959
Highlights and features
- We offer over 50 years of specialized experience in window and door installation.
- Our team provides personalized consulting and free in-home estimates.
- We are BBB A+ rated and have received 5-star reviews from 42,000+ customers.
- Our products include energy-efficient solutions that reduce utility costs.
- We guarantee 100% workmanship satisfaction and comprehensive warranties.
Associations and certifications
- Angie's List Super Service Award
- Better Business Bureau A+
- Window & Door Magazine Dealer of the Year
What people say
Exceeded our expectations
Beautiful job
Expert installers
Energy savings
Flawless installation
Services
Double Hung Windows
Double Hung Windows offer timeless style with two operable sashes for easy cleaning and ventilation. Our vinyl models provide energy efficiency, noise reduction, and low maintenance. Ideal for traditional homes seeking modern performance.
Fiberglass Doors
Fiberglass Doors combine durability with aesthetic flexibility, resisting warping and fading. Available in custom designs, they enhance curb appeal while offering superior security and energy efficiency for residential entrances.
Energy-Efficient Solutions
Energy-Efficient Solutions reduce utility costs through advanced insulation and materials. Our windows and doors meet strict energy codes, lowering heating/cooling expenses while increasing home comfort and resale value.
Custom Window Installation
Custom Window Installation ensures precise fits for unique architectural styles. Our experts handle measurements, permitting, and installation, guaranteeing seamless integration with your home's structure and design preferences.
Showroom Consultations
Showroom Consultations provide hands-on exploration of our product range. Knowledgeable staff assist in selecting styles, finishes, and features tailored to your home's needs during personalized appointments.
People
Rich Noonan
Owner
Rich Noonan has led DeFinis And Sons Windows & Doors to industry leadership through over 50 years of dedication to quality and customer satisfaction. His expertise in window and door solutions drives the company's commitment to excellence.
Questions
What services does DeFinis And Sons offer?
We specialize in vinyl replacement windows, steel/fiberglass entry doors, storm doors, sliding patio doors, and custom installations. Our services include free consultations, showroom visits, and energy-efficient solutions.
Do you serve areas outside Philadelphia?
Yes, we serve the entire Delaware Valley, Southern New Jersey, and surrounding counties including Bucks, Montgomery, Delaware, Camden, and Burlington.
Are financing options available?
Currently, we do not offer in-house financing but provide competitive pricing and free estimates to help plan your project.
What warranties do you provide?
All products come with a comprehensive warranty covering workmanship and materials, ensuring long-term durability and customer satisfaction.
Can I visit your showroom?
Yes, our Northeast Philadelphia showroom features over 350 door options and custom window displays. Open Tuesday-Saturday, 10 AM-3 PM.
Videos
Reviews (7)
Mary Virgara
May 15, 2022
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Junior and his crew installed windows throughout our whole house. They did an excellent job. Very pleasant, professional, friendly. I would highly recommend Definis and Sons Services: Casement window installation & replacement, Double pane window installation & replacement
Ilene Shavitz
Jan 24, 2022
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Thank you to Jimmy and all of DeFinis' staff for a wonderful experience. Our new bow window has dramatically changed the appearance of our home. Kudos to Junior and his crew for an installation that showed true craftsmanship and attention to detail. It is refreshing to see people taking pride in the work they do to make sure their customer is satisfied.
Dawn Osti
Nov 30, 2021
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My husband Bryan and I could not be any happier with Definis and Sons. We purchased 7 new windows as well as a storm door, front door and above door transom. We are thrilled with the transformation of our home, and the professionalism and superior skill of the installers for these projects far exceeded our expectations. We are so very happy with this work - - thank you! Props to Jim for his knowledge and responsiveness. We are impressed all around! We HIGHLY recommend Definis and Sons, and we are now customers for life.
Michael Kahlert
Jun 02, 2021
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Junior and Cody came today to install our windows. They installed 5 windows, in the pouring rain, in about 2 hours. They were speedy, professional, and hardworking. They cleared out the old windows and any debris that came from it in and outside the house. The windows and cap work looks great, and the price is unbeatable. Our house definitely got the facelift it needed. If your looking to get windows/doors installed, this is the place to go!
Anna Shaw
May 03, 2021
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We were so happy with our new door and storm door that we were back at the show room ordering new pario doors leading to our deck. And there's more, the patio doors have the blinds between the glass! I love love love these doors! Next on our list is a new bay window. Everyone at Definis are wonderful, they are welcoming and very patient, as it probably took me two hours to decide which door to chose, the style glass, the color. The options they offer are endless. If you are looking for beautiful doors, look no further than Definis. You will not be disappointed.
Joel Epstein
Apr 25, 2021
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Junior did a great job installing a new door on our home. Told me it would take half a day and was done in four hours flat. Everything was totally cleaned up and new door looks great. Will definitely use them again.
T. Healey
Apr 16, 2021
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The owners treated us great. Bought new front door and patio door answered all our needs and very knowledgeable. Selection was awesome And you could tell customer satisfaction is paramount with this company. So glad we found this company cant wait to have them installed. You will not find this quality anywhere else. Great job guys!
