Aluminum Window Frames for Apartment Renovation Projects

Why aluminum frames suit apartment renovations

In an apartment renovation the existing openings are rarely perfectly square, and the old frames often hide surprises in the masonry. Aluminum frames are made to measure in the workshop, which lets them fit openings that were built with tolerances that differ from one unit to the next.

Aluminum is also light, so the sashes are easy to handle on a tight stairwell and do not overload older balconies or lintels. Its finishes can match a contemporary interior, and the frames need little maintenance over their working life.

Measuring the opening before drawing

Measurement should be taken on site, not from old drawings. Record the width and height at top, middle and bottom, the depth of the reveal, and the position of the sill. Note any out-of-plumb walls and the condition of the plaster and tiling, since these affect how the frame will be fixed.

• Check diagonals to confirm the opening is square
• Mark the finished floor level so sill heights are correct
• Photograph every opening with a tape in view

Choosing the profile and thermal performance

The profile depth, wall thickness and glazing package determine both strength and comfort. A frame facing a busy street or an exposed facade will need a different specification from one on a sheltered inner courtyard. Thermal breaks reduce heat transfer and condensation, which matters in apartments where residents complain about cold surfaces near the window.

Discuss the glazing unit early, because the glass weight and thickness affect the sash profile. Exact performance values should be confirmed with the engineer and the project's energy requirements before the order is placed.

Finishes and coordination with other trades

Powder coating offers a wide choice of colors and textures and resists weather well. Anodized finishes give a more metallic look that suits certain architectural schemes. Choose the finish once the facade color and interior palette are fixed, so the window tone is consistent across the building.

Coordination points

Agree the final opening dimensions with the plasterer and tiler, and confirm who installs the sealant and the internal reveal trim. Clear responsibility prevents gaps being left between the frame and the wall.

Production and installation sequence

Once the drawing and specification are approved by the client and the architect, production proceeds in the factory. Frames are finished, packed and delivered to site in the order the installers need them. Ideally, windows are fitted after the rough masonry is complete and before the internal finishes are applied.

Protect the frames during the rest of the works, as plaster, paint and grinding dust can damage coatings. Remove protective film only after the final cleaning stage.

Practical checks before handover

Before handover, check that each sash opens and closes smoothly, that the locking points engage, and that the drainage slots are clear. Inspect the sealant line from both inside and outside. Confirm that the installation is level and that the frames are fixed securely to the structure as specified.

• Test operation of every sash and hardware item
• Check drainage and weep holes
• Record the as-built dimensions for the project file

Frequently asked questions

Can aluminum frames be made for irregular openings in older apartments?

Yes, aluminum frames are fabricated to measure, so irregular or out-of-square openings can be accommodated. Accurate on-site measurement is the key step, and any unusual conditions should be noted in the specification.

When should the windows be installed during a renovation?

Usually after the rough masonry is finished and before the interior finishes start. This protects the frames from plaster and paint damage while allowing the reveals to be finished neatly.

How do I choose between powder coating and anodizing?

Powder coating gives a wider color range and suits most contemporary schemes, while anodizing offers a more metallic finish. The choice should follow the facade design and the architect's material palette.

Who should confirm the thermal and structural performance?

The project engineer and the architect should confirm the required performance values for the building and location. The fabricator then specifies the profile and glazing to meet those requirements.

Common mistakes to avoid

The most common error is measuring from old drawings instead of the actual opening, which leads to frames that do not fit. Another is choosing the finish before the facade and interior colors are settled.

Our recommendation

Measure every opening individually, record the diagonals, and confirm the finish and glazing package with the architect before production. Fix the installation sequence with the plasterer and tiler at the start of the project.

Summary

Aluminum window frames work well in apartment renovations when they are measured on site, specified for the building's exposure, and installed in the right sequence with the other trades.

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