Frequently Asked Questions – Windows Doors Lift and Slide

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There are several signs that indicate it may be time to replace your windows:

  1. Drafts: If you feel drafts or cold spots near your windows, it could mean that the seals are failing or the windows are no longer energy-efficient.
  2. Difficulty operating: Windows that are hard to open, close, or lock may have balance issues, worn-out hardware, or structural problems.
  3. Condensation: If you notice condensation or fogging between the glass panes of double- or triple-paned windows, it means the seal has failed, and the insulating properties are compromised.
  4. Visible damage: Cracks, chips, or broken glass panes are clear indications that your windows need replacement.
  5. Noise: If outside noise seems louder than it used to, your windows may have lost their soundproofing capabilities.
  6. Energy bills: Inefficient windows can cause your heating and cooling costs to rise. Replacing them with energy-efficient models can help reduce your utility bills.
  7. Age: If your windows are more than 15-20 years old, they may be nearing the end of their lifespan and could benefit from an upgrade to newer, more efficient models.
  8. Frame deterioration: Signs of decay or rot in wooden window frames, or corrosion and rust in metal frames, suggest that the windows may need to be replaced.

If you notice any of these signs, it’s a good idea to have a EcoWindows assess your windows and provide recommendations for repair or replacement.

New windows will definitely result in cost savings. There’s several advantages for replacing your old windows with new ones. PVC will
never has to be painted and won’t fade. Because PVC doesn’t warp, the integrity of the seal of the PVC windows will always be present. When you install new windows, you will eventually get your money back on the investment you made today.

There are two possibilities available, one of them affects the windows you choose to buy.
Firstly, purchasing windows with a Low-E (low-emissivity) coating applied to the panes will help you reduce UV light by 50%.
You can cut the penetration of UV rays by 99 percent if you choose to take a different path and choose windows that are laminated, insulated glass that has PVB (polyvinyl butyral) for the inner layer and a coating of Low-E.

Low-emissivity glass is a non-visible coating that improves the energy efficiency of a thermal glass unit or window.
It reflects light passing through the glass, lowering the U-value while increasing the R-value.
The amount of heat that escapes through the window is used to calculate the U-value; lowering the amount of heat that escapes increases energy efficiency through addition by subtraction. The R-value is determined by several factors, including the number of glass panes present, the type of gas used between window panes, and whether or not the insulated windows have been coated with Low-E.

In order to minimize heat transfer between glass panes, argon gas, an inert, non-toxic gas, is utilized between the panes.
We all remember learning in high school science that warm air rises and cold air descends at lower altitudes.
By spreading the hot and cold air evenly across the entire window pane and decreasing air movement, argon reduces temperature swings and prevents cold air infiltration whilst still improving window insulation.

Our windows and doors are built to be energy efficient.
Our energy-efficient windows and doors keep heated and cooled air inside your homes, saving you money on your monthly energy bills.

In one word – Durability. Aluminum windows have a 30-year lifespan. This is because aluminum frames are less prone to warp or corrode as a result of being far more resistant to the elements than other types of frames.
Additionally, aluminum has a high strength-to-weight ratio, which makes it more difficult to damage.

Indeed, yes.
The aluminum frame of each of our aluminum systems includes polyamide thermal break technology.
As a result, the window’s heat-loss rate is decreased, insulating capacity is increased, and energy efficiency is improved.

Aluminum is a metal with incredible strength. Due to their exceptional durability and longevity, aluminum windows and doors have been used in large-scale commercial installations for decades. Aluminum windows and doors can carry very large glass sections with only the thinnest of frames.

Aluminum, makes them solid, efficient, and durable.
Aluminum is naturally strong and secure, incredibly lasting, and minimal maintenance, all of which lead to a component that is designed to last many years.


Tempered glass is up to five times stronger than ordinary glass of the same thickness. It meets safety standards for glass subjected to accidental human impact at the highest level of severity. It is mainly used in French doors, patio doors, balcony doors and large windows such as front door side-screens.

If you start noticing moisture accumulating between your double glazing panels, it could indicate that the seal between those two panes has worn away and is no longer keeping moisture out of your home.

This can result in mildew and/or mould growing between the glass panes over time. The hot summer air and the cold winter air should not enter your home through any closed doors.
If you are experiencing drafts with each season, it may be time to replace it.

    • ○ structural stability,
    • ○ outstanding acoustic and thermal insulation,
    • ○ excellent anti-burglary protection,
    • ○ a very long useful life and.
    • ○ almost unlimited design options.

Aluminum windows and doors are an excellent choice if you want to improve the energy efficiency of your home. Aluminum doors and windows have a lifespan of 30 or more years.

Steel Windows and Doors

EcoSteel windows and doors meet current thermal performance regulations thanks to modern glazing technologies. This means that your doors will keep you cool in summer and warm in winter.

Our specification of internal steel doors have been tested to withstand 30min of fire. Currently the options available are for single doors, double doors and fixed partitions.

Thanks to new technologies EcoSteel windows and doors have now anti-corrosive properties. The frames are galvanized, which results in a protective zinc coating on the frames.

All our external steel windows/doors are glazed using toughened glass. As standard our doors are fitted with security locks and shoot bolts to ensure your safety.

All depends on from place of use. Our steel windows can be single, double or even triple glazed. Our steel profiles can accommodate glazed units up to 30mm thick. Resulting in high energy efficient windows and doors.

A thermal break, also known as a thermally broken insulator, is a high-performance insulator that connects the internal and external facing sides of a window or door. This insulator acts as a barrier, preventing cool, outside temperatures from entering your home.

Steel windows, that are over 80 years old, are still in use today. EcoSteel windows manufactured today will most likely outlast the structure into which they are installed due to advanced engineering and fabrication techniques.

Passive systems

The industry measures the energy efficiency of windows using the U-value.
The lower the U-value, the less heat loss there really is.
Our glass has a U-value of 0.5 BTU.
With the high cost of heating your home, the goal with our award-winning triple-glazed windows, is to save you money.

A Passive House implements a specific set of design principles to achieve aggressive energy efficiency and comfort while reducing a building’s ecological footprint.
According to a 2015 standard, these residential, multi-family, and commercial buildings use very little energy for heating and cooling. Get more info about Passive systems at the Passive House Institute United States (PHIUS) certification process.

Our advanced glass system, have allowed us to provide the most energy efficient windows on the market. We offer triple glazing as an upgrade on all our windows. The room will keep heat and be much warmer with triple glazing.

Our windows and doors are designed to be high efficient. Our energy-efficient windows and doors help keep heated and cooled air inside your homes, saving you money on your energy bills every month.

Because of their design, passive houses are incredibly energy-efficient.
In fact, while still serving the same purposes as conventional structures, passive houses have the potential to use up to 90% less energy than the current building stock.

Yes, you can. Passive Homeowners are free to open windows whenever they like.
As with all homes, the inside air temperature will be affected if windows are left open for longer periods of time in extremely hot or cold weather, and energy use for heating and cooling will rise.

Lift and Slide – Bi-fold – Multi slide

Due to their high glass  to frame ratio, sliding doors are the right choice.
They provide unbeatable outdoor area views and allow higher ammounts of light to enter.
They are ideal for minimalist living and will also give any house a stylish touch.

Bi-fold doors are excellent if you want your doors to open up to a 90% aperture, but there is a higher frame to glass ratio. It really depends on your goals because sliding doors, on the other hand, offer less of an opening, but have a higher glass ratio, providing better view when closed.

Our sliding doors are available in a variety of configurations with 2,3 or 4 tracks and up to 6 sliding panels. 

Our sliding doors, Bifold, Multislide and French Steel doors are efficient insulators thanks to their low U-values. You’ll stay warm and cozy in the summer thanks to them, and you might even see a drop in your heating costs. 

The majority of sliding glass doors have two panels and are between 5 and 6 feet wide and 6.5 feet tall. However, there are sliding glass doors with three, to even six panels that can measure up to 20 feet wide and 12 feet tall each. These last ones are rapidly gaining popularity, and an increasing number of architects are creating homes that can accommodate these incredibly large sliding doors.

The overall security of the door is greatly influenced by the strength of aluminum itself.
Four-point locking, strong and durable door handles, and toughened or laminated safety glass are all included with our Eco sliding doors system. Every door is tested to make sure they comply to the most recent standards for door security.

Sure we can! With the vast majority of other aluminium or even uPVC systems, it is highly possible to get a matching aesthetic on your windows and sliding doors. We also provide joinery dedicated for certain systems, for example: post to join sliding door frame with window and also corner posts for almost seamless units joining.

The glass is the largest part of any door. Our doors include warm edge spacer bars, argon gas fill, soft-coat low-emissivity coating, toughened safety glass as standard. When choosing EcoWindows, sliding and folding doors are up to 25% more energy efficient than comparable sliding doors. Our sliding doors are superior to the top brands because they use Low U-Values.


Yes we do, we have a showroom in which you can view examples of our extensive range of our aluminium windows and doors for yourself. We welcome both trade customers and their clients to our showroom, as well as residential customers.

For more information, contact us at: 203-636-0011

Thermally broken is a term used to describe a high-performance insulator material that separates two halves, whether aluminum, steel, or bronze.
The insulator reduces ‘thermal bridging’. Cold and heat can exit or enter the interior of the home through the solid metal perimeter frame or true divided muntins in NON thermally-broken or solid metal systems.

Each item is custom made. Our professional installers will first measure any opening – door or window. Our team ensures that your project is evaluated, created, and installed precisely and professionally, whether it is for a steel entry door, a side door, a window, a front door, or lift and slide doors.

Sure we can. We’re creating custom made windows and doors to suit your space.

Yes, we can supply and install the windows and doors for you. Start by contacting us and we can give you a quote for both – supply and installation.

The letteruin uPVC stands for unplasticized, which means that the material has not been softened by chemicals known as plasticizes, making it ideal for the manufacture of windows.

Exterior noise is significantly reduced by impact resistant laminated glass. Our EcoWindows systems can significantly reduce noise. If you live near a busy intersection or if the noise from your neighbor’s lawnmower or dog disturbs your peace, our windows and doors are an excellent choice.


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