Pick the type, opening size, glass grade and quantity — the estimate updates as you go, then sends straight to WhatsApp. It’s an indicative supply-&-install figure; your exact price is confirmed at a site measurement.
Before we price — is the design settled?Optional · a few quick checks
This tool prices the window. Tick anything about the space that isn't decided yet — those are decisions to resolve first, so your price isn't built on a guess.
Ready to configure
Your requirement is defined — the indicative price below stands. We still confirm every dimension at a site measurement.
Start from your situationOptional · the Sarawak cheat sheets and your property type — moves no figure
Start here
Which situation is yours?
Pick any that apply. Each one carries the exact things to ask us to confirm, and they ride into your enquiry.
These are decision guides only. Exact system, glass, dimensions, limits, price and performance are confirmed for each opening through an approved drawing.
Owners replacing mixed old windows across bedrooms, living rooms, kitchens and bathrooms.
LANDED · WHOLE HOUSE · STANDARD + SPECIALIST
Hot bedrooms, living rooms or shopfronts with direct afternoon sun and heavy air-conditioning use.
WEST SUN · AIR-CONDITIONED · COATED GLASS
Bedrooms, offices and clinics affected by exterior traffic or low-frequency noise.
NOISE · BEDROOM/OFFICE · SPECIALIST_VALIDATED
Unsheltered façades, corner rooms, high floors and riverfront, coastal or industrial sites.
EXPOSED · WIND + RAIN · HOLD_ENGINEERING IF UNVERIFIED
Entrances and reachable windows where children, elderly users or forced-entry risk matter.
GROUND FLOOR · FAMILY · SECURITY = SYSTEM
Bedrooms, kitchens, bathrooms and service areas that need frequent natural airflow.
VENTILATION · INSECT MESH · WET AREAS
Strata units, façades, offices and tenant upgrades where approvals, access, fire and egress interfaces matter.
07 · Large patio or garden opening — this is a door, not a window
Wide sliding, multi-panel, lift-slide or folding doors connecting living areas outdoors. Wide sliding, multi-panel, lift-slide and folding systems are priced as doors; estimating one here would price a door at a window rate.
Do not assume: A standard slider can simply be scaled up because the render looks possible.
Which of these is your building? The type predicts the glazing problem better than a description does — a deep intermediate terrace is short of light in the middle, and a west-facing semi-D has glare, before anyone measures anything. Each preset names the light-transmittance to ask for and why. It does not change your estimate; it changes what to specify and what we confirm on the drawing.
And the shorter rule, by building feature
Building feature
Ask for VLT
Configuration
What it buys
Deep roof eaves or an awning
75% and above (ultra-clear)
Single tempered, or clear Low-E
Overcomes the shadow the roof casts and pulls light inside.
No awning, direct sun exposure
55–65%
Tinted Low-E double-glazed unit
Stops the room behaving like a greenhouse.
Facing a public back lane
About 60%, one-way or reflective
Ceramic frit, or reflective Low-E
Daytime privacy from passers-by without heavy curtains.
Every figure here is a target to specify and verify, not a property of a product on this page. The achievable VLT and SHGC are confirmed for each opening against the approved drawing.
Plan your window — decision by decisionOptional · 10 decisions, each with its cost direction
Step 1 Plan your window — decision by decision
The decisions behind a good window, each showing what it changes for how the room feels, how it looks and the cost direction. Nothing here is a fixed price — your figure is confirmed at a site measurement. Opening size, the system grade and the opening surround are set in Build & price below.
1 Your home & daylight
Two questions come before any glass advice: is this an exterior opening or an interior partition, and does the house sit north–south or take hard east–west sun? In a terrace intermediate lot the middle of the house lives on the light that comes in at the two ends, so we choose glass by visible light first — as bright as the application allows once heat and privacy are handled.
Home type
Sun orientation
Where is this glass?
Indicative glazing guide — six sample make-ups
Glass make-up
Visible light
Guidance
Standard clear
≈ 87%
Bright and economical — the everyday tempered glass, suited to sheltered openings, internal glazing and budget-led projects.
Single-silver solar-control Low-E
≈ 77%
The usual balance of daylight, solar control and price — the starting recommendation for an air-conditioned room or an opening that takes real sun.
Double-silver solar-control Low-E
≈ 65%
The strongest solar control in the range and slightly darker — for large, unshaded or west-facing glass where afternoon heat is the main concern.
Low-iron ultra-clear
≈ 92%
The clearest view and the truest colours; weak solar control on its own — combine it with Low-E where heat matters.
Low-iron + single-silver Low-E
≈ 80%
Premium clarity with moderate solar control.
Low-iron + double-silver Low-E
≈ 77%
Premium clarity with strong solar control.
Indicative glass-only visible-light transmission (VLT) from supplier samples, not whole-window values. Solar heat gain (SHGC), U-value, UV transmission and reflectance are quoted from the glass datasheet on request — lower SHGC means less solar heat enters.
Glass thickness & build — where each belongs
Build
Role
Where it belongs
Never
5–6mm single tempered
The light pane for small doors and small openings.
Small cabinet doors, small interior windows, light fittings.
Any large floor-to-ceiling pane, or anything that carries load.
8–10mm single tempered
The golden thickness for an interior door leaf — light enough to slide, tempered for impact.
Safety glass — a struck pane crazes but the fragments stay bonded to the interlayer, which is also an acoustic upgrade for low- and mid-frequency noise such as traffic. Retention, not a storm or security rating.
Glass stair treads and balustrades (double or triple laminated), the inner pane of a street-facing bedroom window.
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5+12A+5 / 6+18A+6mm insulated unit (air or argon cavity)
The core of heat insulation and condensation control, and an acoustic upgrade for higher-frequency noise such as voices — the outcome depends on the whole window, not the glass alone.
Full-height balcony glazing and bedroom exterior windows. Specify low-iron panes, or the stacked panes read like a green film over the view.
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Three proven glass recipes
Minimalist kitchen linked door
8mm single low-iron tempered + ultra-slim black frame — Premium and see-through, with no green cast where the panels overlap.
Light-luxury minimalist wardrobe
5mm European grey tempered + concealed 4000K light strip — A dark, quiet face with the light off; the clothes read softly through the tint with it on — refined, and it hides clutter.
Street-facing high-rise balcony enclosure
6mm low-iron + 12A + 6mm low-iron, both panes laminated — An acoustic upgrade on both counts — the cavity for voices, the interlayer for traffic rumble — with heat, condensation and fragment-retention benefits and an uninterrupted panoramic view.
2 RoomCost direction only — settled at quotation
Where the window sits sets privacy, ventilation and weather priorities before we touch glass or size; how exposed that wall is comes next.
The room and its façade steer the spec; the exact system, glass and opening size are confirmed at your site measurement.
2b Façade exposureCost direction only — settled at quotation
How exposed is the wall this window sits in — sheltered, fully exposed, or high above the ground? This steers the seal, the hardware grade and what we must validate before production.
Exposure changes what is confirmed at your site measurement, not the indicative figure. An exposed or high-level wall brings the exposed-opening checklist into your enquiry automatically.
3 Opening methodChanges the system, not the figure
How the sash opens — this sets ventilation, sealing and cleaning more than it sets price.
The window is priced on the same per-sqft system rate whichever method you pick; the mechanism and seals are what differ. Tilt-and-turn and folding sit outside the standard systems and are confirmed at your site measurement.
4 Size & panel arrangementCost direction only — settled at quotation
How the opening is divided — one clean pane, a mullioned run, a corner or a full wall of glass. This composes with the opening method above; the exact size is set in Build & price.
Panel count and special forms change the frame rhythm and the structural check more than the per-sq-ft rate. A corner or floor-to-ceiling composition is validated on the approved drawing at your site measurement, never on an online figure.
5 Ventilation & openable areaCost direction only — settled at quotation
How much of the window is fixed glass versus an opening sash — this composes WITH the opening method above, it doesn't replace it. Sarawak wants cross-ventilation, but every opening sash is also a path for driving rain and insects.
Read this together with your opening method: it sets how much of the aperture is a fixed daylight panel and how much is the sash you chose. More opening area means more airflow but more frame and hardware — the composition is confirmed against the room and elevation at your site measurement.
6 Choose your glassCost direction only — settled at quotation
Standard clear for sheltered openings. Single-silver Low-E offers the usual balance of daylight, comfort and price. Double-silver Low-E is intended for large or strongly sun-exposed glazing. Choose low-iron ultra-clear when clarity and true colour matter; combine it with Low-E when solar control is also required.
Every ALUMAX window ships 6mm tempered as standard. Performance depends on the exact glass make-up. Final VLT, SHGC, safety treatment and appearance are confirmed in the quotation and approved sample.
7 Weather, heat & acoustic performanceCost direction only — settled at quotation
Flag what each opening actually faces — hot sun, a noisy road, a fully exposed wall — and we match the seal, the hardware and the glass you set in the glass step to it.
These are exposure flags, not a second glass menu — they steer the glass you chose above, the seal and the hardware, all confirmed at quotation. Every external opening still needs its weatherproof junction, checked at your site measurement.
8 Safety, security & insect protectionCost direction only — settled at quotation
Keep insects out and the room secure — without shutting the window on the airflow you want.
Pick what the opening needs — but note the overlaps so nothing doubles up: a security mesh already keeps insects out (no separate insect mesh needed), and child-safe openings already include the restrictors. The exact mesh, grille or restrictor is confirmed at quotation, and safe opening limits are set against the real sill height at your site measurement.
9 Hardware, control & maintenanceCost direction only — settled at quotation
The handles and the way the window works — how it feels to use, how easy it is to reach, and how it holds up. Locks, multipoint latching and opening restrictors live in the security step, so nothing here doubles up.
Standard manual hardware is the baseline on every window; the flags below are the deliberate upgrades — a premium handle, a firm hold-open, easy-action or accessible handles, or a motor for a high sash. The exact hardware is confirmed at quotation.
10 Frame colour & finishCost direction only — settled at quotation
The frame is aluminium in every case — this chooses its colour and coat, inside and out, to coordinate with doors, facade, roof and interior.
Every finish here is on ALUMAX aluminium — none add swelling or termite risk. The range is Matte Black, Grey, White and natural aluminium; compare the full installed assembly, not the price per sq ft, and the exact colour and coat are confirmed at your site measurement.
10b Frame detailingCost direction only — settled at quotation
How the frame meets the wall and sheds water — the details that decide whether the junction looks resolved and stays dry.
Each detail is set on the approved drawing and confirmed at your site measurement; none changes the indicative figure.
Step 2 Build & price
1 Opening sizeMoves the figure
2 Grade & systemMoves the figure
3 Your openingCost direction only — settled at quotation
What does the window fix into? This decides the preparation, the fixing and the junction — as stated by you, verified at the site measurement.
A surround is not waterproofing
Whichever surround you pick — or none — an exposed window still needs a properly designed weatherproof junction: subframe, flashing, sealant, a sloped sill and drainage. A surround finishes the look; it does not stop water. We confirm the junction against the actual opening at the site measurement.
4 Opening surroundCost direction only — settled at quotation
Optional, and priced separately by opening perimeter — it finishes and protects the reveal. Choose “None required” for a new, cleanly-plastered opening, a tiled reveal or an integrated flange; the question stays open until you answer it.
Which of these describe your opening?
A surround is recommended when
Uneven brick or concrete opening
Replacing an old window with gaps to conceal
Frame-to-wall joint visually exposed
Window must match aluminium doors, wall panels or cabinetry
Corners need protection
Deeper portal wanted
Exterior cladding must terminate neatly
Not necessary when
New opening with straight plastered reveals
Tiles finish the reveal
Integrated trim or finishing flange
Intentional frameless plaster return
Curtain-wall or façade system
What the opening interface covers
Opening preparation
Not yet answered
Subframe & frame fixing
In the base price
Perimeter joint & drainage path
In the base price
Sub-sill waterproofing membrane
Not included — client / contractor scope
Sill drip / flashing
Not yet answered
包套 · opening surround
Not yet answered
Making-good works
Not yet answered
Old window removal & disposal
Not needed
Preparation, subframe, waterproofing, sill and flashing, the surround by linear metre and making-good are the opening's own price — separate from the window. Each row says where it sits; none is a figure.
5 How many windows?
Technical detail
The choices that carry the weight至关重要的关键选择Pilihan yang paling menentukan
A window is a long-term envelope decision, not a finish. Four choices decide how it performs in Sarawak — we match them to how exposed the opening is, not to a brochure photo.窗户是关于建筑外壳的长期决定，而非表面装饰。四项选择决定它在 Sarawak 的表现——我们依据洞口的暴露程度来搭配，而非依照宣传册上的照片。Tingkap ialah keputusan sampul bangunan jangka panjang, bukan sekadar kemasan. Empat pilihan menentukan prestasinya di Sarawak — kami padankannya mengikut sejauh mana bukaan terdedah, bukan mengikut foto brosur.
Frame & hardware colours
Matte Black哑光黑Hitam Matte · default
Natural aluminium原色铝材Aluminium asli
Grey灰色Kelabu
White白色Putih
Powder-coat finish — UV-stable matt, satin or textured. Darker tones run hotter in the sun, so how exposed the opening is factors into the colour choice.
Glass & glazing
6mm tempered6mm 钢化玻璃Tempered 6mm
The standard safety glazing — toughened so it crumbles into blunt pieces rather than shards.
Tinted有色Bertona
Cuts glare and some of the west-sun heat on bright, sun-facing elevations.
Single-silver Low-E单银 Low-ELow-E perak tunggal
A solar-control coating that reflects radiant heat while keeping most of the daylight — the usual balance of comfort and price for an air-conditioned or sun-facing room.反射辐射热同时保留大部分采光的遮阳镀膜——冷气房或受晒房间在舒适与价格之间的常规平衡。Salutan kawalan suria yang memantulkan haba sinaran sambil mengekalkan sebahagian besar cahaya siang — keseimbangan biasa antara keselesaan dan harga untuk bilik berhawa dingin atau menghadap matahari.
Double-silver Low-E双银 Low-ELow-E perak berganda
Two silver layers in the coating for the strongest solar control, slightly darker — for large, unshaded or west-facing glass. The coating, not double glazing; the two can be combined.镀膜中的两层银提供最强遮阳，略暗——适合大面积、无遮挡或朝西的玻璃。指镀膜而非中空双层玻璃；两者可组合。Dua lapisan perak dalam salutan untuk kawalan suria paling kuat, sedikit lebih gelap — untuk kaca yang besar, tidak terlindung atau menghadap barat. Salutannya, bukan kaca berganda; kedua-duanya boleh digabungkan.
Low-iron ultra-clear超白（低铁）玻璃Ultra-jernih rendah besi
Clear glass with the green iron tint removed — the clearest view and truest colour; combined with Low-E where heat control also matters.去除了含铁绿色的清玻璃——视野最通透、色彩最真实；同时需要隔热时与 Low-E 组合。Kaca jernih dengan tona hijau besi dihilangkan — pandangan paling jernih dan warna paling sebenar; digabungkan dengan Low-E apabila kawalan haba juga penting.
Laminated夹胶Berlamina
A bonded PVB or SGP interlayer (5+5 / 6+6mm) — a struck pane crazes but the fragments stay in place, and the interlayer is an acoustic upgrade for traffic rumble. Fragment retention, not a storm or security rating; wind and security performance come from the complete assembly.PVB 或 SGP 胶片粘合（5+5／6+6mm）——受撞击时玻璃碎裂但碎片留在原位，胶膜也是针对汽车轰鸣的隔音升级。属碎片固持，不是防风暴或防盗等级；抗风与安全性能来自整套组件。Lapisan antara PVB atau SGP yang dilekatkan (5+5 / 6+6mm) — kaca yang dihentam retak tetapi serpihan kekal di tempatnya, dan lapisan antara ialah naik taraf akustik untuk deruman lalu lintas. Penahanan serpihan, bukan penarafan ribut atau keselamatan; prestasi angin dan keselamatan datang daripada pemasangan lengkap.
Insulated unit (5+12A+5 / 6+18A+6)中空玻璃（5+12A+5／6+18A+6）Unit bertebat (5+12A+5 / 6+18A+6)
Two panes with an air or argon cavity — the core of heat insulation and condensation control, and an acoustic upgrade for higher-frequency noise such as voices. Specify low-iron panes so the stacked glass keeps a true view; whole-window performance depends on the frame, seals and installation.两层玻璃夹空气层或氩气层——隔热与防结露的核心结构，也是针对说话声等较高频噪音的隔音升级。请指定超白玻璃，叠加后仍保持真实视野；整窗性能取决于框架、密封与安装。Dua kaca dengan rongga udara atau argon — teras penebatan haba dan kawalan pemeluwapan, dan naik taraf akustik untuk bunyi frekuensi lebih tinggi seperti suara. Tentukan kaca rendah besi supaya kaca yang bertindan mengekalkan pemandangan sebenar; prestasi seluruh tingkap bergantung pada bingkai, kedap dan pemasangan.
Triple
Two cavities — only where a very low U-value is the actual problem. Heavier and costlier, and not automatically the better tropical value or the quieter build.两个空气层——仅在极低 U 值确实是问题时使用。更重、更贵，并不自动成为热带更划算或更安静的配置。Dua rongga — hanya di mana nilai-U yang sangat rendah menjadi masalah sebenar. Lebih berat dan lebih mahal, dan tidak secara automatik menjadi nilai tropika yang lebih baik atau binaan yang lebih senyap.
Frame & construction
Aluminium frame & section
A standard section for sheltered openings; a heavier, deeper section for exposed, high or wide openings so panels stay rigid and seals hold.
Clear for sheltered openings, tinted or coated to cut west-sun heat, tempered where breakage is a safety risk, laminated where the fragments must stay in place after breakage.有遮阳的开口用清玻，朝西受晒用有色或镀膜玻璃减热，有破裂安全风险处用钢化，破裂后碎片必须留在原位处用夹胶。Jernih untuk bukaan terlindung, bertona atau bersalut untuk mengurangkan haba matahari barat, terbaja di mana pecah menjadi risiko keselamatan, berlamina di mana serpihan mesti kekal di tempatnya selepas pecah.
Seals & drainage
Compression seals and correctly-set drainage channels so driving rain exits the track instead of pooling.
Insect mesh纱网Jejaring serangga
Fixed or retractable mesh that keeps openings usable for natural ventilation.
Powder-coat finish
UV-stable matt, satin or textured colours — darker tones run hotter, so exposure factors into the choice.
System profile · laminated / Low-E · multipoint locking, heavy-duty
Which window suits the opening
Operation is matched to the opening, not to habit. Here is how we choose the window type for the job — the exact spec, glazing and frame grade are confirmed at your site measurement.开启方式依洞口而定,而非依习惯。以下是我们为工程选择窗型的方式——具体规格、玻璃与框材等级以现场测量为准确认。Cara ia dibuka dipadankan dengan bukaannya, bukan mengikut tabiat. Berikut cara kami memilih jenis tingkap untuk kerja itu — spesifikasi tepat, kaca dan gred bingkai disahkan semasa ukuran di tapak anda.
Tight space or balconySliding — no projection into the room
Driving rain, air & acoustic priorityCasement — seals on compression
Ventilate through light rainAwning — top-hung
Maximise light & view (no airflow)Fixed / picture pane
Open a wall to the outsideFolding / bi-fold system
No absolute claims: these describe how exposure and use guide the choice. Coated glass reduces solar heat gain, it does not eliminate heat; real performance also depends on correct installation, sealing and drainage.无绝对承诺:以下仅说明暴露程度与使用方式如何影响选择。镀膜玻璃可减少太阳辐射得热,但无法完全隔热;实际表现还取决于正确安装、密封与排水。Tiada dakwaan mutlak: ini menerangkan bagaimana pendedahan dan penggunaan memandu pemilihan. Kaca bersalut mengurangkan pemerolehan haba suria, ia tidak menghapuskan haba; prestasi sebenar juga bergantung pada pemasangan, pengedapan dan saliran yang betul.
We specify the system that fits, not a catalogue series number. The exact profile depth, frame grade and hardware are matched to your opening and confirmed at a technical site measurement — with the drawing approved before anything is made.
How the estimate works预估如何计算Bagaimana anggaran berfungsi
Honest per-square-foot pricing诚实的每平方尺定价Harga jujur setiap kaki persegi
Aluminium windows are priced by area. We multiply your opening (width × height) by the per-square-foot rate for your chosen system — XF70, XF123 or the bespoke performance system — supply and install. An insect screen is part of the XF123 system and is inside its rate; a screen added to a system without one is quoted separately. Non-standard glass and site conditions are confirmed at measurement, so the figure here is an honest planning number, not a final quotation.铝窗按面积计价。我们以您的开口尺寸（宽 × 高）乘以所选系统的每平方尺单价 — XF70、XF123 或定制性能系统 — 含供应与安装。防蚊纱网属于 XF123 系统的一部分，已包含在其单价内；若为本身不含纱网的系统加装纱网，则另行报价。非标准玻璃与现场条件于上门测量时确认，因此此处数字是诚实的规划参考，而非最终报价。Tingkap aluminium diberi harga mengikut luas. Kami mendarabkan bukaan anda (lebar × tinggi) dengan kadar setiap kaki persegi bagi sistem pilihan anda — XF70, XF123 atau sistem prestasi tempahan khas — bekal dan pasang. Jejaring serangga ialah sebahagian daripada sistem XF123 dan sudah termasuk dalam kadarnya; jejaring yang ditambah pada sistem yang tidak mempunyainya disebut harga berasingan. Kaca bukan standard dan keadaan tapak disahkan semasa pengukuran, jadi angka di sini ialah nombor perancangan yang jujur, bukan sebut harga muktamad.
Prices are indicative and exclude SST. Published installed rates apply within the Sibu service area. ALUMAX validates the selected layout, dimensions, materials and accessories; the final quotation follows site measurement and approved drawings. Other Sarawak locations are supported, with travel and logistics quoted separately.价格为参考价并不含销售与服务税。所公布的含安装价目适用于诗巫服务范围内。ALUMAX 会核实所选的格局、尺寸、材料与配件；最终报价以上门测量及经批准的图纸为准。砂拉越其他地区亦可承接，交通与物流另行报价。Harga adalah anggaran dan tidak termasuk SST. Kadar pemasangan yang diterbitkan terpakai dalam kawasan perkhidmatan Sibu. ALUMAX mengesahkan susun atur, dimensi, bahan dan aksesori yang dipilih; sebut harga akhir mengikut pengukuran tapak dan lukisan yang diluluskan. Lokasi Sarawak yang lain turut disokong, dengan perjalanan dan logistik disebut harga secara berasingan. A minimum billable area applies to small openings, so the smallest job costs more than the rate multiplied by its size.
