Windows, Doors & Siding That Make Your Home Look Great

Serving St. Catharines, Niagara Falls, Grimsby, and the Greater Niagara Area

about us

Does your home feel outdated?

At Permanent Siding & Windows we know you want to be proud of your home. In order to do that you need your home to look great starting from the outside. The problem is it’s hard to find a company who is reliable which makes you feel worried you will waste your time and money. We believe that it’s wrong to not love how your home looks.




did you know?

A brand new window can still let in a draft.

There are many companies that take shortcuts that you may not notice at first. We understand what it’s like to want to have a great looking home and know that is was renovated properly. That’s why we have helped thousands of homeowners in Niagara over the last 50 years to make the right choice for their windows and siding.

Have Questions? Want to Book an Estimate?

step one


We come to your home, take measurements, then guide you through the choices for your home.

step two


Now that we have your measurements we will put together a customized quote for you.

step three


Our team will carry out the plan we laid out to make your home look great.

step four


Your friends and family will love spending time making memories at your newly renovated home.

working with us

The Perfect Home Plan

At Permanent Siding & Windows, we have developed the perfect installation plan to help you feel at home with your decisions.

how we help

Our Capabilities

Are You Tired of Wasting Money?

How much are old windows costing you? 30% of heating and air conditioning is lost from old and inefficient windows.

Old windows can be costing you money. We want to save you money, and make your home look great.

Call or text us at 289-273-9910

get to know us

Quick Stats

50 Years of
Quality Service

Over 10,000 Windows Installed

1,000s of
Happy Customers

working with us

Our Gallery

Trusted Builders

our mission

We want your home to look great

Like you, we know home renovations can be stressful, and time-consuming. No one should have to deal with the stress of trusting a company you don’t know to renovate your home. 50 years of guiding our customers to making the right choice for their home has taught us how to renovate homes that your friends and family will love to gather in.

Darryl Unger
Owner, Permanent Siding and Windows