Specialists in windows, siding, roofing, kitchens, & bathrooms
Chosen as one of the top 50 remodelers in the United States

Why PROTEC Replacement Windows?

PROTEC Replacement Windows

PROTEC Replacement Windows by RIHI, the next generation of windows, is a revolutionary material blended with timeless design that surpasses the expectations of even the most well known window manufacturers.

Nothing defines a home like the elegance and warmth of wood windows, but the maintenance problems and expenses associated with wood are simply overwhelming.

Metal and vinyl clad wood windows were only partial solutions. In the industry-wide pursuit of window excellence, PROTEC is the answer.

What is PROTEC?

PROTEC Replacement Windows

PROTEC blends the elegant appearance of a true wood window with the maintenance freedom of vinyl, the strength of metal, cutting edge energy saving and operational features into a beautiful and durable window system. Frames and sashes are made from a proprietary mix of specialty polymer and acrylic resins, creating an “engineered composite”, super tough, solid core material. A permanent color surface technology called “SuperCap” is fused to the core materials during the extrusion process. The result is an extremely durable, weatherable and fade resistant product that is far superior to other window framing materials.

PROTEC provides the warmth of a finely milled wood window without the problems associated with wood.

Exclusive SuperCap Surface Technology

PROTEC Replacement Windows

SuperCap provides a permanent pre-finished surface that performs in the harshest of weather conditions. A lifetime of virtually no-maintenance benefits, this tough, capped surface protects against fading from ultraviolet light exposure, erosion, chalking and cracking to keep windows and doors looking good over time. The cap brings protective ingredients to the profile surface, where they provide superior weathering performance. Also, the SuperCap surface layer is integral and fusion-bonded into the profile.

It Makes Good Sense To Replace Your Old Windows with PROTEC

Advanced Technology Provides Superior Energy-Efficiency, Comfort and Durability

PROTEC Replacement Windows offer superior performance because they combine the latest in composite material technology with the best performing glass options. The PROTEC material combines the beauty of wood with superior, rot-proof durability and no-maintenance attributes of vinyl. It’s a superior insulator compared to fiberglass, wood or aluminum. Combine this advanced material with the highest performing glazing, and you get greater energy savings, comfort, and durability over the long run.

PROTEC Replacement Windows

Impervious to Moisture, Rot and Insect Free

PROTEC can’t absorb moisture so your windows will be rot and insect-free forever. They are also impervious to salt air and corrosion making PROTEC windows an ideal solution for coastal environments.

Superior Strength and Durability

With PROTEC windows you will never have to worry about cracking, peeling, chipping, flaking or chalking. Your windows will withstand virtually any climate and have exceeded industry standards in structural stability and heat resistance testing. In independent lab testing, PROTEC is 2.7 times stiffer than hollow PVC, and as measured by screw retention, PROTEC is over 500% more secure than fiberglass and 400% better than hollow vinyl.

Designed to Last

PROTEC is an engineered material that provides superior performance on many levels. Because of it’s unique solid core structure encapsulated with a rigid pre-finished SuperCap surface, it has the lowest thermal conductivity compared to other typical window frame materials.

PROTEC is a proprietary blend of specialty PVC polymer and acrylic resins that can be chemically or fusion welded to create superior, weather-proof joints — unlike fiberglass, aluminum or wood that require mechanical fastening and sealants that can fail over time. And because of its chemical makeup, the material is readily recyclable for future reuse.

Extreme Energy Efficiency

Energy Star

With high thermal performance values, PROTEC windows far exceed Energy Star criteria. Our products are AAMA and NFRC certified, then independently 3rd party verified to further ensure they meet or exceed industry structural and energy efficiency standards.

While many window manufacturers strive to achieve Energy Star window heat transfer U-factor qualification, PROTEC windows can more than DOUBLE the Energy Star U-factor insulating efficiency value of the most extreme northern climate, and exceed by over FOUR TIMES the Energy Star U-factor window insulating qualification for the southern climate zone.

PROTEC: Extreme energy efficiency today that exceeds energy saving qualifications into the future.

The Benefits of PROTEC

PROTEC Replacement Windows

We are Proud to Serve the Following Areas:

All of Rhode Island


  • Providence
  • Cranston
  • Warwick
  • Smithfield
  • Lincoln
  • East Providence
  • Johnston
  • North Smithfield
  • Cumberland
  • Barrington
  • Jamestown
  • See All…

SE Massachusetts


  • Attleborough
  • Plainfield
  • Rehoboth
  • Easton
  • Wrentham
  • Foxborough
  • Franklin
  • Acushnet
  • Brockton
  • Raynham
  • Plymouth
  • See All…

E. Connecticut


  • Putnam
  • Killingly
  • Canterbury
  • Dayville
  • Woodstock
  • Sterling
  • Clinton
  • Old Saybrook
  • Madison
  • Brooklyn
  • Lyme
  • See All…

RI Reg: 6115 • CT Lic./Reg No. HIC.05834438 • MA Reg: 105026