Window Installation in Chicagoland | Dynasty Restoration Inc.

A premium window installed incorrectly performs worse than a budget window installed correctly. The window is only half the product — the flashing sequence, the shim and fastener pattern, the insulation method, and the sealant choices are what decide whether the opening stays watertight and air-tight for the life of the window.

Dynasty Restoration's window installation crews handle all three common project types: pocket (insert) replacement, full-frame replacement, and new construction installation for additions and new builds. We follow each manufacturer's installation instructions precisely, use the flashing system the manufacturer specifies, and provide written workmanship warranties that back our labor.

Installation Types

Pocket (Insert) Replacement

The new window goes into the existing frame. Faster, less invasive, preserves interior and exterior trim. Ideal when the frame is sound and square. Loses about 1" of glass area compared to full-frame.

Full-Frame Replacement

Existing window, frame, sill, and trim removed down to the rough opening. Required when frames are rotted or out-of-square, or when changing window size. Allows new flashing and air-sealing for maximum long-term performance.

New Construction Install

Nail-fin windows installed into a framed rough opening, typically during an addition, new build, or major siding project. Integrates with the weather-resistive barrier during install — the highest-performance installation method.

Why Flashing Sequence Matters

The flashing around a window has to be installed in a specific order — sill pan first, then jamb flashing, then head flashing — so that water is shed in layers, with each upper layer draining onto the one below it. This is called 'shingling' the flashing. Doing it in the wrong order, or skipping the sill pan, creates a path for water to flow behind the window frame and into the wall cavity. This is the #1 cause of window leaks on both new construction and replacement projects. Our installers use flashing tapes and sill pan systems compatible with each window manufacturer's instructions, and we document the install sequence with photos for your records.

Frequently Asked Questions About Window Installation

Should I choose pocket or full-frame replacement?

If your existing frames are sound, square, and rot-free, pocket replacement is usually the better value. If frames show rot, water damage, or are badly out-of-square, full-frame is the right call — and often necessary to preserve the manufacturer's warranty.

Can you install windows I've already purchased?

In most cases, yes. We'd recommend a pre-install visit to confirm the products are correctly sized and that the install method matches the windows you bought.

Do you handle new-construction window installation for additions and new builds?

Yes. We integrate nail-fin window installs with the weather-resistive barrier during construction, in coordination with siding and trim crews.