Cost of aluminium windows & doors in Nigeria 2026

2.1.  Aluminum profile quality

Aluminium window frames are constructed from extruded aluminium profiles. The absolute thickness of the profile wall and the quality of the raw extrusion determine how strong and durable the frame remains over time. In Nigeria, premium profiles manufactured by established extrusion companies—such as Nigalex, Reynolds, or certified high-grade imported profiles—are significantly more durable than thin-walled generic counterparts. Inferior, thin profiles will flex, rattle under high wind loads, and bend at the mitered corners where frames join, inevitably creating gaps that leak air, dust, and rainwater.

2.2. Glass specifications

The glass integrated into your frames is just as critical to safety and insulation as the frame itself. The core options available in the Nigerian market for 2026 include:

• Clear float glass 4mm–6mm

Standard, lowest cost profile option. Highly adequate for most everyday residential applications where specialized thermal insulation is not a primary concern.
• Tinted Glass: Significantly reduces solar heat gain, which is highly valuable in Nigeria's tropical climate, particularly for west- and south-facing windows exposed to harsh afternoon sun.
• | Frosted Glass: Provides high privacy for bathrooms, bedrooms, and street-facing windows without causing a substantial loss of natural interior daylighting.
• | Laminated Safety Glass: Comprises two glass panes bonded together with a transparent PVB (Polyvinyl Butyral) interlayer. It prevents dangerous shattering and is legally or structurally required for low-level windows and doors.
• | Double Glazing: Features two isolated panes separated by an air or gas gap to optimize thermal and acoustic insulation. While available, it is an expensive option that is not yet common in basic Nigerian residential construction.
Key Factors Driving Project Costs
• | Window Dimensions: Pricing is closely correlated with raw surface area (per square metre). While larger windows naturally push up the overall cost, fabricators may offer a minor discount on the unit rate per square metre for high-volume orders.
• | Profile Grade: Opting for heavy-duty commercial profiles over thin standard profiles can cause a variation of 30% to 50% for identical window sizes.
• | Glass Treatment: Specifying tinted, frosted, laminated, or double-glazed panels adds an appreciable premium over entry-level clear float glass.
• | Panel Configuration: A three-panel sliding window layout consumes more raw frame materials, interlocking profiles, and mechanical hardware than a basic two-panel equivalent.
• | Powder Coating Color: Standard finishes such as white and silver anodized profiles are the most economical. Custom RAL color palettes and premium wood-effect textures attract custom pricing adjustments.
• | Hardware Quality: The standard of locks, pull handles, friction hinges, and bottom rollers determines the structural operation and operational life of the unit. Premium hardware delivers long-term durability, whereas generic hardware routinely fails within a couple of years.
Fabrication Red Flags to Watch For
To protect your investment, strictly avoid fabricators whose finished work displays any of the following technical red flags:
• | Poorly joined or crudely screwed corners: Premium frames use precise, internal mechanical corner cleats or seamless welds rather than ugly, exposed external screws.
• | Glass that rattles or moves inside the frame: Glass panels must always be firmly embedded using specialized glazing rubber beads, security tape, and structural silicone.
• | Stiff, grinding, or easily derailed sliding frames: Smooth motion requires heavy-duty, high-performance stainless steel or brass rollers rather than cheap plastic variants.
• | Absence of weather seals or brush piles in sliding tracks: Gaps or omitted seals allow aggressive seasonal rainwater, dust, and insects to penetrate your interior living spaces.
Frequently Asked Questions (FAQ)
Q: How much do aluminium windows cost in Nigeria in 2026?
A: Standard aluminium sliding windows generally cost between ₦18,000 and ₦30,000 per square metre, including supply and installation on-site. Casement windows normally range from ₦20,000 to ₦40,000 per square metre. For a full 3-bedroom bungalow package containing roughly 12 to 18 windows, the total expenditure typically tracks between ₦350,000 and ₦800,000, heavily contingent on profile quality and glass specification selection.
Q: What is the expected lifespan of these installations in Nigeria?
A: High-grade aluminium windows treated with quality powder coatings easily last between 20 and 30 years under Nigerian environmental conditions. While the structural frame itself rarely breaks down, mechanical wear items such as sliding rollers, weather seals, and latch hardware will wear down first. These components are easily replaceable without discarding the frame. For coastal properties near the Lagos Atlantic shoreline, always specify marine-grade powder coating to prevent accelerated corrosion from airborne salt spray.
Q: What are the main functional differences between casement and sliding windows?
A: Sliding windows open horizontally along a set track and represent the most widely used format in Nigeria due to their structural simplicity, durability, and low maintenance needs. Conversely, casement windows open outward on side-mounted friction hinges. They offer superior ventilation because 100% of the window aperture can open to catch breezes, and they form a much tighter barrier against driving rain because the window sash compresses fully against an elastic rubber seal. Casement designs carry a slight cost premium and their hinges demand more periodic lubrication than sliding tracks.
Q: Can aged or damaged aluminium windows be repaired locally?
A: Yes, absolutely. The vast majority of localized faults can be addressed by a skilled technician without undertaking full frame removal. Average local repair rates in 2026 include: replacing worn sliding track rollers (₦3,000 to ₦8,000 per window), replacing faulty locksets or handles (₦5,000 to ₦15,000), swapping out degraded weather brush piles (₦2,000 to ₦5,000), and replacing cracked glass panes (₦8,000 to ₦30,000 per pane depending on surface area and thickness). Complete replacement is only advised if the underlying profile has suffered severe physical bending or deep material corrosion.
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