400 SERIES CONVERSION KITS FOR NARROLINE® WINDOWS

400 SERIES CONVERSION KITS FOR NARROLINE® WINDOWS

400 SERIES CONVERSION KITS FOR NARROLINE® WINDOWS

Narroline® double-hung window conversion kits offer a smart solution for upgrading Andersen windows manufactured between 1968 and 2013. These kits transform your existing units into modern tilt-wash double-hung windows with High-Performance Low-E4® glass — all without removing the frame or modifying interior trim.

As a Premier Certified Contractor for Andersen, ARDMOR Windows & Doors is trusted to deliver expert installation that aligns with the manufacturer’s specifications. This certification confirms our deep knowledge of Andersen products and ensures that every conversion is completed with precision, reliability, and long-term performance.

KEY BENEFITS

Improved Energy Efficiency
Each conversion kit includes High-Performance Low-E4® glass, which offers up to 45% better energy efficiency in winter and 56% in summer compared to standard dual-pane glass.* This upgrade helps reduce heating and cooling costs year-round.

Convenient Tilt-Wash Design
The tilt-wash feature makes routine cleaning easy by allowing access to both sides of the glass from inside your home—no ladders or exterior access required.

Customizable Style
Enhance your window’s appearance with optional upgrades such as decorative hardware, grille patterns, exterior trim, or specialty glass including art and patterned styles.

Hassle-Free Installation
Designed to fit your existing opening, each kit includes new upper and lower sash, balancers, jamb liners, and hardware—no need to alter the window frame or interior trim. This means faster installation with minimal disruption to your home.

HOW TO KNOW IF YOU HAVE A NARROLINE WINDOW?

If your windows have these four features, they’re compatible with the 400 Series tilt-wash conversion kit.

DOUBLE-HUNG CONVERSION KIT OVERVIEW

*Values are based on comparison of Andersen® double-hung window conversion kit SHGC to the SHGC for clear dual pane glass non-metal frame default values from the  2006, 2009, 2012, 2015 and 2018 International Energy Conservation Code “Glazed Fenestration” Default Tables.

Google Reviews

ARDMOR Windows & Doors4.9
Based on 2412 reviews
Saravy V.
Window trim installation was great but wait time for windows orders/trims can take some time .
Peter G.
Kiki D.
Ardmore installed my entry door and it looks amazing!! They filled the gaps in my door. Fixed my siding and concrete. Mike the technician helped me pick my custom color and the price was within my budget. I would recommend for your home.
Lyvirn W.
This is my second time having Ardmor Windows do work on my home and the delivery quality work with courteous technicians.
Alexandra B.
They were very professional and fairly priced. I would recommend them!
Wanda R.
Professional and punctual personnel.Very satisfied with their repair of my window. I highly recommend them..
Juliane
André and André did a great job! Fast and clean. Thank you
Kathleen C.
Great Job! Ardmore installed 5 new full-sized windows in my basement. It was a messy job as far as removal of the old ones and demolition. At my request, the company paused the job and coordinated with masons I had to hire to repair the “window boxes” in the stone foundation and brick wall before the windows were put in. All the workers were very competent and nice people. The installers did a great job of installing the vinyl windows and finishing the inside and the flashing on the outside. The project manager and the salesman were both easy to work with, and company stayed on top of scheduling next steps. My windows look great!
John N.
Great job replacing the window glass in my Andersen widows.
Edward P.
Gregory R.
The technician did an excellent job and was very efficient. Everything was done exactly how they explained it to me in a very timely manner.
ADRIENNE J.
Robert G.
Exactly on time. Daniil knows his trade well. Door adjusted and working perfectly. Pleasant and friendly.
Frank R.
Love are new Door this company installed are door so fast they were very professional and polite highly recommend Ardmore
Anne S.
Excellent service all the way around. Arrival, efficiency, cleanup.
SHIYAH G.
Dima and his crew did an excellent job with installing my 8 windows. Highly recommend!
Ashim M.
I am satisfied with their professional approach and work. Thanks
Frederick M.
Pat F.
The guys redid the flashing on my front window and did a wonderful job. I’ll always call Ardmore before anyone else!!
Bev S.
The glass panels that Ardmor windows installed look great! The workers were very pleasant and cleaned up well.
harry S.
Our storm window needed a frame repair. It required part order. Workers came on time, did the repair in good time, cleaned up and were respectful. We would use them again.
Barbara P.
The job was completed in a timely manner. I was very satisfied with the price. The technicians were quick and courteous. I would not hesitate to call them again.
James T.
We had the glass replaced on 11 windows after the seals failed and the glass fogged up. The Ardmor estimate was 25% lower than the other companies we had contacted. The estimator provided an immediate quote in our home and the materials were ordered promptly. The two installation techs completed the job in 2 hours and were polite and professional. I would gladly use Ardmor again in the future.
Roman D.
Great install team (4-person crew). Very clean and careful. Leave no trace. On time, quick, efficient, polite. Very professional start to finish. Good quality replacement glass and components.
Kathy G.

Free In-Home Consultation

We are passionate about resolving window issues for our customers. In order to study the problem in detail and advise the best strategy for a solution, we are happy to inspect the situation on-site at your home. The free in-home consultation allows customers to…

  • Fast and efficient consultation sessions.
  • Onsite inspection of your windows.
  • We do not require all decision-makers to be present.
  • Select your favorite style and color windows

Many consultation requests require customers to send digital images of the project.

OTHER BRANDS WE REPLACE

WE OFFER FINANCING

FINANCING OPTIONS

While updating or replacing your windows or doors offer great benefits, we understand that they’re also big financial undertaking. That’s why Ardmor, Inc. offers flexible financing options tailored for your needs.

  • NO MONEY DOWN
  • 0% FINANCING with Minimum Payment

VIDEO TESTIMONIALS

ARDMOR ADVANTAGE

ARDMOR provides professional window repair, glass replacement, and door installation services across Pennsylvania and New Jersey. As a licensed and insured contractor, we deliver factory-certified installation for Andersen, Marvin, and other leading brands. Here are the advantages of working with ARDMOR:

  • LICENSE & INSURED

  • FACTORY CERTIFIED PRO’S

  • ACCURATE QUOTE & PRICING

  • WIDE ARRAY OF BRANDS & OPTIONS