Costello Windows latest window is the Townhouse Sash Window. Townhouse Sash window gives you functionality, beauty, reliability, and safety. The window is designed in the style of a sliding sash window but opens in a different way. From the outside the window looks just like a sliding sash window, but instead of sliding up and down it opens out and in.
How to get your Quotation
Contact our friendly and helpful sales team directly on 068 34800, or fill in the Request A Quote form and a member of our sales team will contact you shortly.
Costello Windows are always competitively priced, meaning great savings for our customers. Additionally Costello windows regularly run promotions, so keep an eye out to see what amazing savings you could make. Do not hesitate to give our friendly and experienced sales team a call, to see what we can do for you today.
- Double Glaze U-Value 1.3 W/(m²K)
- Triple Glaze U-Value 1.0 W/(m²K)
- Townhouse weather test
- Townhouse Window Brochure
- Townhouse Website for more info
- Unique double opening sash design
- Airtight compression seal gives unmatched energy rating
- Full fire escape access for all window sizes
- Best priced window of it’s class on the market
- Excellent air tightness and water tightness
- Argon gas filled units
- Warm edged spacer bars
- Double or triple glazed
- Low maintenance, easy clean material
The Townhouse Sash Window Introduction
The top sash opens out and the bottom sash open in. This gives full fire escape access, but also ensures that the window has a compression seal, making it airtight resulting in a high energy rating. This is unique for sliding sash windows that are notorious for allowing air leakage. Any home can benefit significantly from implementing these windows, both aesthetically and with energy conservation. In today’s climate and with today’s standards there are few better options out there for the home buyer.
The Townhouse Sash Window is a solid, robust window that is beautiful and elegant in design but without the large price tag and any of the inherent problems that sliding sash windows give. These problems include drafts between the sashes, springs and pulleys breaking and needing repair, sashes getting stuck, repair / maintenance and painting of timber frames, low energy ratings. The townhouse window has none of these problems. The Townhouse window is a much simpler design, it does not have springs and pulleys, it does not have gaps between the sashes, it does not need to be painted every second year.
The Townhouse Sash Window makes a statement, it will immediately stand out in any home and become a real feature. The window is a very clever yet simple design with very few moving parts, which allows for the production of a cost effective product. It is the best priced window of its type on the market. Combing these facts with the uPVC material it is made from, makes for a low maintenance product. The Townhouse Sash window has performance ratings far and above traditional sliding sash windows. The airtight compression seals give zero air leakage and zero water permeation, leading to an A- rated window that also has full fire escape access. The Townhouse Sash window has a seven chamber mainframe making it very strong. The multi chambered frame provides a natural barrier to heat loss which is crucial in giving the window its high energy rating.
Finishes and Features
The Townhouse Sash Window comes in several configurations, finishes and features . The Townhouse Sash window can come with an arch, with sidelights, in bay and bow style or a double Townhouse Sash window design. We make the window in many different finishes, in a natural rich cream or white colour or from our woodgrain finishes like golden oak, rosewood and dark green. Please check our colour option. Two colours on one window is also an option, for example why not try cream on the interior with dark green on the exterior, this is option is popular. Different features include Georgian bars. Georgian bars can go between the panes of glass or be surface mounted. Extra features for the window include double gasket seals, gold and chrome locks, gold and chrome hinges, night latch, Trojan heavy duty hinges and adjustable locks.
Weather Proof Window
Traditional sliding sash windows have one common flaw air leakage. Every sliding sash window we have looked at was susceptible to wind penetration and some to water penetration, primarily because their weather seals have no compression. They cannot have rubber gaskets due to how they function in an up and down sliding motion. The patented Townhouse Sash window on the other hand operates with a similar motion to a casement window. Both sashes open away from the frame, in turn, they close into the frame, compressing the rubber seal ensuring zero air leakage. Traditional vertically sliding sash windows slide up and down and have a sliding seal that has little or no compression. As a consequence, these windows have low energy ratings no matter what material they are made from. Futhermore a traditional sliding sash window is not effective for fire escape purposes. The new Townhouse Sash window solves all of these problems.
How it Works
The Townhouse Sash window opens in a completely different way and has a unique design when compared to the traditional sliding sash window. The top sash is top hung, it is an outwardly opening sash, hinged so that the top portion of the window opens outwards and up, away from the building in which the window is installed. The bottom half of the window is hinged to the side and opens inwards and into the building to which it is installed. The way in which both the top and bottom sash opens allows for the full area within the frame to be open which gives full fire escape access and is effective even for smaller window sizes. This is not possible with a traditional sliding sash window. When closing the bottom sash is closed first and the top sash is closed last. When the top sash is locked in place it naturally pulls tight to the bottom sash and side frames to provide an airtight compression seal, thus insuring zero air leakage.
The Townhouse Sash window is a very clever yet simple design. It has very few moving parts compared to a traditional vertical sliding sash window. It does not require spring balances where a conventional sliding sash requires four of these, with various weight strengths to suit the different weights of various sash sizes, nor does it require attachments that have to be supplied individually to suit the different weights. Due to fact that the window does not have balancing springs, which eventually slacken or break, it is both simple and cost effective to manufacture and service, saving in labour as well as cost. The window is not a sliding sash window and therefore cannot get caught in a sliding position, which commonly happens in a traditional sliding sash window.
This window is ideal as a fire escape window. While the bottom half can open fully in, at the same time the top half can open fully out, giving a full open space to escape from in the event of a fire. While some of the present day vertically sliding sash windows can open both sashes to the side, this is achieved with some difficulty.
It is also important to note that while the traditional sliding sash window slides up and down, it lacks the compression of our newly designed Townhouse Sash window. This is due to the fact that our window has compression against the main frame, outside sash and against the seals by way of an espag type lock wedging system which accommodates same. This gives a compression seal, which is a great advantage in terms of
1. Air tightness
2. Water permeability
3. Wind resistance
This compressed sealing system which in itself is not new in a standard casement type window, is new to this type of window. While traditional vertically sliding sash windows in uPVC, wood or other materials get a very poor energy rating, this window can achieve the top energy rating.
Manufacturing, materials and labour cost advantage
Because of its simplicity in design, it has fewer moving parts and profiles than that of a traditional sliding sash window. It does not require spring balances where traditional windows require four, plus attachments that have to be supplied individually to suit the different weights of different sash sizes.
In traditional sliding sash windows, all these different parts are time consuming to attach, our window will save in labour as well as cost. To open a conventional sliding sash window for fire escape access requires a lot of extra gear which is both expensive and labour intensive. Overall, while the Townhouse Sash window does not slide, it is a more reliable, has lower labour and material costs, yet will look the same as a traditional sliding sash window.
Servicing and Longevity
Due to fact that the window does not have balancing springs, which eventually slacken or break, it is both simple and cost effective to manufacture and service, saving in labor as well as cost. The window is not a sliding sash window and therefore cannot get caught in a sliding position, which commonly happens in a traditional sliding sash window. The only adjustments necessary for a Townhouse Sash window are to the hinges and catches which is very simple, i.e. low maintenance.
Email Costellos or call now on 068 34800.