Windows & Doors

Custom Replacement Windows and Doors For The Home You Love

Infinity JDPower

Infinity Replacement Windows

Infinity Replacement Windows

Infinity from Marvin, no other window delivers more value with a brand you can trust. Your windows are professionally installed by DiGiorgi, and backed by our Everlast Warranty. Better than the best manufacturer’s warranty.



“There are no better replacement windows than Infinity from Marvin”

~David DiGiorgi, President

Here’s Why…


100% ultrex fiberglass | Ultrex fiberglass construction

Only Infinity replacement windows are made of 100% ULTREX FIBERGLASS, A uniquely durable material that’s 8X stronger than vinyl, and outlasts and outperforms all other window materials.

Ultrex Fiberglass Exterior. The finish That Outlasts All Other

Infinity’s patented bonded finish is 3X thicker than thin painted finishes. Resists discoloring, warping and corrosion to stay looking new and maintenance free. Looks like wood, performs like fiberglass.

Built Strong To Resist Cold, Heat And Time

infiUltrex fiberglass keep windows stable and weather tight all year, every year. Infinity exceeds the performance requirements for energy reduction.

Infinity’s unique window glaze technology reflects heat away in summer and retains indoor heat in winter dramatically reducing energy bills.

Infinity. Better Fit. Better Seal. Better Energy Efficiency.
The More You Compare The Better We Look.
Why Choose Infinity Windows and Doors The difference is in the details


Provia Entry Doors and Storm Doors

provia doors ct
DiGiorgi Roofing and Siding Inc. uses the highest quality entry and storm doors by Provia. Provia is committed to making doors The Professional Way; doors individually customized for homeowners to the highest standards of durability, security and energy efficiency in the residential market.


Replacement Windows and Doors Blog


Adding Energy-Efficient Windows

In today’s market, buyers are shopping for homes with energy efficiency in the forefront of their minds. To these prospective buyers, outdated, drafty single-pane windows are a major turn off. Adding a new set of windows to a home can give it a more open and updated look. In addition, Energy Star also claims that adding Energy Star-rated windows like Marvin replacement windows can save homeowners up to $500 a year in heating and cooling costs, and HGTV claims that homeowners who install Energy Star-rated windows can also expect a 60%-90% return on their investment.

Our Guarantee

DiGiorgi’s Everlast Warranty guarantees its customers the best in quality window replacement service. Our excellent products, professional staff, and quality workmanship ensures customer satisfaction. At DiGiorgi exceeding customer satisfaction is our number one goal.

Click here to see our Everlast Warranty™

Remember, at DiGiorgi we offer the following to you:
  • No obligation consultation
  • Qualified, professional staff and services
  • A lifetime Everlast warranty on products and services
  • A convenient, easy, no stress experience
Replacement Windows and Doors in CT

If you are a resident of Hartford County, DiGiorgi offers the highest quality products for your Hartford home improvement, home vinyl siding, roofing, gutters, and replacement windows. Our services also extend throughout Hartford County including New Britain, Farmington, Windsor. Also serving New Haven, Fairfield, Waterbury, and beyond.


Due to the COVID-19 virus, we are taking precautionary measures to ensure your safety as well as the safety of our co-workers.

We are offering
FREE VIRTUAL ESTIMATES for anyone looking for an alternative.