What Should Be Included in an Aluminium Window Quote?

Two aluminium window quotations can describe what appears to be the same project and still arrive at very different totals. The reason is often not simply that one supplier is “cheap” and another is “expensive”. The quotes may be allowing for different window styles, glass, hardware, finishes, removal work or installation details.

A useful aluminium window quote should make the proposed result understandable before you approve it. At minimum, it should identify the openings, window configurations, frame finish, glazing, hardware, installation scope and important exclusions. If any of those details are missing, ask for clarification in writing so that you can compare like with like.

For homeowners, property managers and project teams in Nigel and surrounding areas, the checklist below offers a practical way to evaluate scope without pretending that every building needs the same specification.

1. A clear window schedule

The quotation should make it easy to connect each price or line item to a real opening. This can be done with window numbers, room names, dimensions, photographs or a drawing. “Replace six windows” is far less useful than a schedule that distinguishes the kitchen slider, bathroom top-hung window and large fixed lounge pane.

Dimensions on an early quote may be provisional, particularly when they came from plans or measurements supplied by the client. The document should make that clear and explain whether final site measurement will happen before manufacture. For replacement work, existing frames may be out of square or partly concealed by plaster, tiles, security fixtures or trims, so an approximate opening size is not the same as a final manufacturing size.

2. The opening style and configuration

An aluminium window is not defined by width and height alone. The quote should show which sections are fixed and which open, the direction of opening, the number of panels and the intended window type.

LTE’s aluminium window range includes configurations such as casement, sliding, tilt-and-turn, awning and fixed windows. Each serves a different combination of ventilation, view, cleaning access and furniture clearance. A drawing or simple elevation is especially valuable for multi-panel windows because it prevents assumptions about mullion positions and opening sections.

Ask whether insect screens, restrictors or other accessories are included when they matter to the room. If they are not part of the quoted system, that should be visible rather than discovered after manufacture.

3. The frame system and finish

The quote should name or adequately describe the proposed aluminium system, profile or performance level rather than using only the phrase “aluminium windows”. Larger openings, wind exposure and different opening styles can require different profiles or arrangements.

Colour and finish should also be written down. Charcoal, white, bronze and natural finishes can create very different results, and custom colours may affect cost or lead time. Confirm whether visible handles, hinges, fasteners, trims and sealants will coordinate with the chosen frame colour where appropriate.

If you are replacing steel or timber frames, ask how the new aluminium sightlines will relate to the original opening. Preserving the rhythm of an older façade may require a more considered panel layout than simply filling the hole with the fewest sections.

4. The glass specification

“Glass included” is not enough for a confident comparison. The quotation should identify the proposed glass type and, where relevant, thickness or build-up. Clear, obscured, tinted, laminated and double-glazed units perform different jobs.

A bathroom may need privacy, while a living room may prioritise views and daylight. A large pane near a door or a low-level glazed area can have different safety considerations from a small high-level window. Heat, glare, noise and security expectations should be discussed for the actual orientation and use of the room rather than reduced to a single buzzword.

South Africa’s building framework includes requirements that apply to glazing. The appropriate solution depends on the location, size and application, so ask the supplier or project professional to confirm the specification for each opening. The national framework is available through the National Building Regulations and Building Standards Act.

5. Hardware, operation and security details

Handles, stays, rollers, hinges, catches and locks are small on the page but significant in daily use. The quote should show what is included or at least state the intended hardware range. For sliding windows, ask how panels run and lock. For casements and awnings, check how far the sash opens and whether the handle will remain accessible around blinds, burglar bars, counters or furniture.

Security is the combined result of the frame, glazing, hardware, fixing and surrounding structure. Avoid relying on a vague claim such as “secure window”. Describe your priorities and ask how the proposed components work together. If separate security barriers, alarms or building work are outside the scope, keep those items visible in your wider project plan.

6. Removal and disposal of existing frames

Replacement work begins before the new window arrives. The quote should say whether removal of old glass and frames is included, who will dispose of debris and how nearby floors, furniture or finishes will be protected.

Steel frames embedded in masonry, timber frames with deep reveals and windows surrounded by tiles can involve different levels of disturbance. The supplier may need to exclude structural repairs, repainting, retiling or specialist hazardous-material work. Exclusions are not automatically a problem; hidden exclusions are.

7. Installation, sealing and making good

The installation line should explain more than “fit windows”. Confirm that fixing, alignment, perimeter sealing and normal installation consumables are allowed for. Ask what level of making good around the opening is included and where another contractor may be required.

This matters because “making good” can mean anything from a neat sealant finish to minor plaster repairs—and it may exclude painting, decorative coatings, tiling, waterproofing or reconstruction around a damaged opening. Clarify the expected finished condition on both the inside and outside.

For exposed elevations, discuss drainage paths, sill details and wind-driven rain. A window is part of the building envelope, and even an excellent unit depends on correct integration with the surrounding wall.

8. Access, logistics and site conditions

The easiest opening to photograph may not be the easiest one to install. Upper-storey work, restricted driveways, internal courtyards, security-estate rules, fragile landscaping and occupied offices can all influence access and scheduling.

Tell the quoting team about height, parking, working-hour limits and difficult routes through the property. If scaffolding, lifting equipment or specialist access is required, the quote should state whether it is included. Also confirm who will move curtains, blinds, furniture, stock or equipment before work begins.

9. Exclusions, assumptions and provisional items

A professional quote does not need to promise every possible outcome. It does need to show its boundaries. Look for a section covering exclusions and assumptions, then consider how each one affects the final project cost.

Common points to clarify include electrical or alarm contacts, burglar-bar removal, blinds, structural alterations, lintel work, waterproofing outside the immediate window perimeter, plaster repair, painting, tiling, scaffolding and disposal. This is not a list of what LTE necessarily includes or excludes; it is a checklist of questions for any window project.

Where an opening cannot be fully assessed until work begins, ask how unforeseen conditions will be handled and approved. A clear process is more useful than an unrealistic promise that nothing can change.

10. Timing, payment and after-installation information

Before accepting, confirm the quotation’s validity period, anticipated manufacturing and installation sequence, payment milestones and who will be your contact if access or timing changes. Dates should be treated as agreed project information, not inferred from a generic turnaround claim.

Ask what product, workmanship or maintenance information will be supplied after installation and what process applies if an adjustment is needed. The exact terms should be stated by the supplier in writing; do not assume that one company’s terms match another’s.

Compare scope, not just totals

Warning signs worth clarifying

A short quote is not automatically a poor quote, particularly after a detailed site meeting. However, pause and ask questions when:

• several different openings are grouped under one vague description;
• window styles or opening directions are not shown;
• the glass is described only as “standard”;
• colour or finish is missing;
• removal and disposal are not mentioned;
• installation is included but making good is undefined;
• important access requirements have not been discussed; or
• verbal promises do not appear in the written scope.

The goal is not to turn every quote into a technical manual. It is to remove the ambiguities most likely to create disappointment, extra work or mismatched expectations.

What to send when requesting a window quote

A well-prepared enquiry helps the supplier understand the project before arranging final measurements. Include:

• clear photographs from inside and outside;
• approximate width and height of each opening, labelled as estimates;
• room names and the desired opening style;
• whether the project is a new build or replacement;
• privacy, ventilation, security, heat or noise concerns;
• preferred frame colour;
• photographs of nearby tiles, blinds, burglar bars or wall damage;
• access or height considerations; and
• drawings or a window schedule, if available.

Do not remove glazing or climb to unsafe positions simply to improve the enquiry. Photographs and approximate measurements are enough for an initial discussion; final manufacturing dimensions should be checked professionally.

Frequently asked questions

Is the cheapest aluminium window quote usually the best value?

Not necessarily. A lower total may be excellent value, or it may reflect a different glass choice, window configuration, hardware allowance or installation scope. Compare the written inclusions and exclusions before deciding.

Should every window be priced separately?

Individual numbering or room references are helpful, especially when openings differ. A supplier may group identical units, but you should still be able to identify what is proposed for each location.

Can I get an accurate quote from photographs?

Photographs and approximate dimensions can support an initial estimate or conversation. Replacement conditions, final sizes and installation details usually need a site assessment before manufacture.

What if I do not know which window style I need?

Explain how the room is used, where you need ventilation, what may obstruct the opening and which views you want to preserve. LTE can then discuss suitable options rather than expecting you to arrive with a finished specification.

The architectural images in this guide are generated illustrations for educational use and do not depict an LTE customer project.