When a standard rectangular window simply won’t do, Bradnam’s arched and raked windows offer the design flexibility to match any architectural vision. Whether you’re working with a cathedral ceiling, a feature gable end, or a curved façade, these custom-shaped aluminium windows are engineered to perform in Darwin’s demanding tropical climate — while making a genuine visual statement.

Supplied and installed by DABSCO, Darwin’s locally trusted window and door specialists since 1966, Bradnam’s arched and raked windows are available across the Northern Territory for residential and commercial projects.

What Are Arched and Raked Windows?

Arched and raked windows are custom-shaped aluminium-framed windows designed to complement non-standard wall openings and architectural features. Unlike standard rectangular windows, these units are fabricated to follow curved, angled, or tapered profiles — allowing builders, architects, and homeowners to create dramatic visual focal points without sacrificing weatherproofing or thermal performance.

Arched windows feature a curved or semi-circular top, commonly used above entry doors, in living areas, and along stairwells. Raked windows follow an angled or sloped sill or head line, making them ideal for raked ceilings, A-frame structures, and feature roof lines.

Bradnam’s Arched & Raked Window Features

Bradnam’s arched and raked windows are built to deliver on both form and function. Key features include:

The minimal frame profile means these windows are as much about the view as they are about the structure — turning a wall into a panorama, even in unusual-shaped openings.

Why Arched and Raked Windows Suit Darwin’s Climate

Darwin’s tropical climate places real demands on building products. The combination of intense UV radiation, high humidity, seasonal cyclonic wind events, and extreme heat means that windows need to do more than just look good — they need to perform year after year.

Bradnam’s aluminium frames are engineered to handle the Top End environment. The full joint sealing system is particularly relevant during the wet season, where heavy rainfall and driving winds are common. The UV-rated and low-E glass options help manage solar heat gain, keeping interiors cooler and reducing reliance on air conditioning — an important consideration for energy efficiency in the Northern Territory.

For cyclone-rated building requirements, speak with the DABSCO team about glass specifications and frame ratings suited to your area.

Where Arched and Raked Windows Are Used

These windows are a practical and aesthetic choice across a wide range of residential and commercial applications in Darwin and regional NT:

• Feature entry and foyer walls — arched windows above front doors add kerb appeal and natural light
• Raked ceiling rooms — raked windows follow the roofline to maintain a clean architectural line.
• Stairwells — tall arched units allow light to travel through multi-storey spaces.
• Living and dining areas — fixed panoramic arched windows frame outdoor views without interruption
• Gable ends — raked or triangular windows fit the exact pitch of a gable without custom framing workarounds.
• Commercial buildings and showrooms — distinctive window shapes strengthen architectural identity

Whether you’re building new, renovating, or replacing old louvres or jalousies common in older Darwin homes, arched and raked windows can be specified to suit the opening.

Frame Size Options — 52mm, 67mm, and 100mm

Bradnam’s arched and raked windows are available in three frame depth options, each suited to different structural and design requirements:
52mm frame — the slimline option, ideal for smaller shaped openings where a minimal visual profile is preferred. Works well in feature applications where the glass area is the priority.
67mm frame — the mid-range depth, offering a balance between slim aesthetics and structural rigidity. Suitable for medium-span arched and raked windows.
100mm frame — the heavy-duty option for large openings, commercial applications, or where additional structural support is needed. Also useful in high-wind or cyclone-prone zones where increased frame depth contributes to system performance.
The right frame size depends on your window dimensions, glass weight, and the structural requirements of the opening. The DABSCO team can advise on the appropriate specification during a free measure and quote.

Glass Options for Arched and Raked Windows

Glass selection is one of the most important decisions for any window in Darwin’s climate. Bradnam’s arched and raked windows can be glazed with a range of specifically selected glass types:

• Standard float glass — suitable for low-exposure or protected openings
• UV-rated glass — reduces ultraviolet ray entry, protecting furnishings and flooring from sun damage.
• Low-E glass — reflects radiant heat, reducing solar heat gain and improving thermal comfort.
• Laminated safety glass — provides impact resistance and holds together if broken, important for cyclone-prone regions.
• Acoustic glass — reduces external noise transmission, beneficial near busy roads or in commercial environments.
• Tinted glass — reduces glare and visible light transmission while maintaining outward views.

For homes in Darwin and across the NT, a combination of UV-rated or low-E glass with tinting is often the most practical choice, balancing heat reduction with view quality. Speak with the DABSCO team about glass options that align with the NCC (National Construction Code) energy efficiency requirements for the NT climate zone.

Why Choose DABSCO for Bradnam’s Windows in Darwin

DABSCO has been Darwin’s locally owned window, door, and security specialist since 1966. As an authorised Bradnam’s supplier and installer, DABSCO offers:

• Local manufacturing and supply in Darwin
• Expert measure and quote service across the Northern Territory
• Full installation by experienced local tradespeople
• Knowledge of NT building codes, cyclone ratings, and tropical climate requirements
• Flexible finance options through Latitude Gem Visa and HUMM

Beyond arched and raked windows, DABSCO supplies the full range of Bradnam’s aluminium windows and doors, as well as Crimsafe security systems, Luxaflex blinds and awnings, and shower screens and mirrors — making DABSCO a single point of contact for most of your home’s glass and glazing requirements.

Flexible Finance Options

Upgrading your windows doesn’t have to mean a large upfront payment. DABSCO offers two flexible finance options:
Latitude Gem Visa — 6 months interest-free on purchases of $250 and over. 18-month interest-free terms available on purchases over $1,500. No early payout penalties.
HUMM — Buy now, pay later with no interest ever. A straightforward payment solution for larger home improvement projects.
Finance options cannot be combined with other discounts or promotional offers. Contact the DABSCO office for current finance promotions.

FAQ Section

Q: What is the difference between an arched window and a raked window?

An arched window has a curved profile — typically a semi-circle or full arch — at the top or along its shape. A raked window has a straight but angled sill or head, following the pitch of a roofline or ceiling rather than sitting perfectly horizontal or vertical. Both are custom-made to suit specific architectural openings.

Q: Are Bradnam’s arched windows available as openable units?

Bradnam’s arched and raked windows are most commonly supplied as fixed (non-opening) windows to maximise glass area and simplify the custom fabrication. Fixed windows also offer the best weatherproofing performance. If ventilation is required, a complementary openable window or louvre can be specified adjacent to the fixed arched unit. Speak with DABSCO for design options.

Q: Can arched and raked windows be used in cyclone-rated buildings in Darwin?
Yes, subject to the correct glass and frame specification. Darwin falls within a high wind and cyclone-risk zone, which means windows must meet relevant structural and glazing requirements under the NCC and AS 4055 (Wind Loads for Housing) or AS/NZS 1170.2 for larger structures. DABSCO can advise on appropriate specifications for your project and location.

Q: What frame colours are available?
Bradnam’s aluminium frames are available in a range of powder-coated colours and anodised finishes. Standard colours typically include White, Paperbark, Surfmist, Monument, and Woodland Grey, with custom colour matching available for larger projects. Contact DABSCO for the current Bradnam’s colour range.

Q: How do I get a quote for arched or raked windows in Darwin?
Contact DABSCO on (08) 8947 8111 or submit an enquiry online to book a free measure and quote. The DABSCO team will assess your opening, advise on frame size and glass options, and provide a detailed quote for supply and installation.

Q: Can DABSCO supply Bradnam’s arched windows outside Darwin?
Yes. DABSCO services the broader Northern Territory, including regional areas. Contact the team to discuss supply and installation options for your location.