What is brick-to-brick installation?

Brick-to-brick removes the existing window, frame, jambs and casing to the stud opening. The opening is vacuum cleaned and protected with Blueskin membrane. The new window, supplied with brickmould and jamb extension, is shimmed and secured to the studs, insulated with low-expansion foam and sealed with red tape over the foam. New wood or snap-in vinyl interior casing and exterior capping complete the installation.

Which is more expensive?

Brick-to-brick involves removal, membrane, insulation and new finishing, so it generally requires more labour and materials than an insert. The difference depends on the inspected opening and project scope.

How long does each method take?

Timing depends on opening condition, access and finishing scope. Brick-to-brick involves more removal and finishing than a suitable retrofit.

Masonry opening prepared for brick-to-brick window installation

Buying Guide

Brick-to-Brick vs Retrofit Installation

Last updated: August 1, 2026

The single biggest factor in how long your new windows last — and one most quote sheets bury. Here's the difference in plain language.

Request a Quote Masonry Work

Side-by-Side

Brick-to-brick vs retrofit installation

Both are legitimate methods. The right one depends on the condition of your existing frames, your budget, and how long you plan to stay in the home.

Best for Sound frames + budget

Retrofit (Insert)

New window inserts into an existing sound, square and dry frame.

Learn more

Best for Complete opening preparation and refinishing

Brick-to-Brick

Window, frame, jambs and casing removed to studs; new casing and capping.

Learn more

Feature	Retrofit (Insert)	Brick-to-Brick
Relative installed cost (per window)	More cost-effective	Higher — reflects removal, opening preparation and new finishing
Time per opening	Scope-dependent	More removal and finishing
Removes old wood frame
Glass area preserved An insert reduces glass area; the amount depends on the frame and unit.
Requires a sound, square and dry existing frame
Opening preparation	Existing frame retained	Removal to studs
Structural repair or resizing	Use stud-to-stud instead	Use stud-to-stud instead
Interior trim disturbance	Minimal	Full re-trim
Exterior brick mould replaced
Permit sometimes required

Our Verdict

Retrofit inserts a new window into an existing frame only when it is sound, square and dry, preserving the existing interior finish. Age or brick veneer alone does not qualify an opening. Stud-to-Stud involves full removal to studs for compromised openings, structural repairs or rebuilding, or resizing. Brick-to-brick removes the old window, frame, jambs and casing to studs for cleaning, Blueskin membrane, insulation and new finishing. We inspect each opening before recommending a method.

FAQ