Timber Alternative Windows

Spot the difference.

“Timber alternative” or “timber effect” windows. Windows that look and feel like timber without the price tag or the maintenance.

There’s no doubt about it. Freshly installed hardwood timber windows look fantastic. And, considering the cost, they should. Despite how great timber windows look once installed, in recent years, a growing demand has arisen for windows that look and feel like timber but don’t need re-painting and repairing every few years. Moreover, for properties with many windows, repair and maintenance costs really mount up. The industry’s answer to this demand is now here.

We specialise in installing timber alternative windows, Residence 9. We install these windows primarily into cottage or period properties but we have recently experienced a growing demand for them in new build properties too. Architects, homeowners and developers alike are all seeing the benefits of a maintenance-free window that looks like timber.

Are they really like Timber?

Residence 9 has been specifically designed to replicate traditional timber windows. All timber alternative windows have the following features in common.

  • They have mechanical (squared) corner joints as opposed to welded (diagonal) ones to the outer frame.
  • They come with extra deep timber-look cills as opposed to the thinner (30mm) cill used with uPVC windows.
  • They are available in an array of fitting traditional colours.
  • They have all the modern security trimmings and good thermal values.
  • For a full demonstration of the differences between the two timber alternative windows, we invite you to our showroom. There we have various samples of both window systems in different colours for you to explore in your own time and decide which is right for you and your home. Many customers really benefit from a showroom visit to comfortably decide between the two systems and then the colour and hardware options.
  • You can also check out the Residence 9 video below to further explore the product.


Residence 9

Arguably the market leader in terms of product innovation, Residence 9 windows tick every box.

Mechanically jointed sashes as well as outer frame to fully replicate 19th century timber windows.

Traditional butt hinges, handles and peg stays.

Fully foiled rebate so only woodgrain on show when window open.

Extra-deep 55mm Radlington cill to replicate timber.

Georgian/Astragal bars and leaded glass to create specific looks.

Triple glazing available if thermal values and noise insulation is a priority.

View Case Study

The only way to truly compare the two.

At our showroom, you will not only be able to see the windows themselves but also the different colour and furniture options.

We’re at Unit 8, Queenborough Business Park, Queenborough, Kent, ME11 5DY. We’ve even got complementary tea and coffee on tap! Please call ahead to arrange an appointment with someone there if you want more technical information and a quote.

In-depth technical information on all of our timber alternative windows and doors is available on request. Feel free to get in touch.

Not just a good-looking window. Secure too.


  • Shootbolt locking

As our team can show you, all of our timber alternative windows come with modern multi-point shootbolt locking mechanisms. Really, this means that when you turn that handle to lock the window shut, not only do bolts lock into their keeps next to the handle, but shootbolts at the top and bottom of the window lock into their keeps too meaning your timber alternative window is as secure as any other modern window on the market.


  • Night-vent facility

There are two positions in which you can close all of our windows. First is the normal fully locked position, which is fully closed. Secondly, you can close the lock the window in its “night-vent” position, which locks it in a just-slightly open position, allowing ventilation into the property without compromising on security by leaving a window wide open inviting potential burglars in. This “night-vent” opening position is obviously not as secure as the fully closed position but it is certainly a good middle-ground that ventilates and secures the property.


  • Internally beaded

All of our timber alternative windows are internally glazed to prevent intruders popping out the bead and glass and gaining entry.

Despite appearance, our timber alternative windows are among the most thermally efficient windows on the market. They share the same energy efficient characteristics of super-efficient modern uPVC windows.


  • Modern spacer bars

Spacer bars are the what separates the two (or three) pieces of glass in a double or triple glazed unit. Until a few years ago, the industry standard was for this spacer bar to be made out of metal. If your windows are more than 5 years old, the chances are, they will have metallic spacer bars. This kind of spacer bar is still available and is still used by some companies to save money. The problem with these metallic spacer bars is that they give a path for the cold to travel straight through the bar and make the glass area on the inner pane around the metallic bar cold, causing the condensation all the way around the edge of the glass, which many of our customers had experienced in the past without knowing why. PARA In both Residence 9 and Evolution windows, we now use what’s called ‘warm edge composite spacer bars’, which are made out of a composite material designed not to transfer the cold meaning the glass on the inner pane does not get cold as it does with metallic spacer bars. By only using modern warm edge composite spacer bars, we can ensure that our customers don’t experience condensation on the inside of their windows whilst improving the BFRC energy rating too. The standard colour for these bars is black, but we also offer them in in white.


  • Argon-filled glazed units

Whether in our R9 or our Evolution windows, our double and triple glazed units are all argon-filled as opposed to the less efficient air-filled units. This applies to glazed units with Georgian bar and to leaded units too. Argon is a noble glass which means it doesn’t react to anything as much as normal air does. This means that heat is not lost as easily through the unit. If you use air-filled glazed units, the heat can escape through the unit much more easily. This of course contributes to the overall energy rating of the window.


  • Multi-chambered composite frame

In this respect, the Residence 9 window really stands out. With a frame split into 9 chambers, as opposed to the standard 4, 5 or 6 it is the equivalent of leaving the house with 9 coats on as opposed to 4, 5 or 6. This means, of course, that whilst the Evolution window is a thermally efficient one, the R9 window truly sets itself apart in terms of keeping your home warm and thermally efficient.

To match the highly efficient composite frames, we only use the best glass.

Hand in hand with the other energy-efficient features of our timber alternative windows mentioned above, as standard we use Saint-Gobain Planitherm Total Plus.  In some situations, where building control or architects have specified a certain thermal U-value, for example, we upgrade to Planitherm One glass to obtain the required u-value. These two types of glass we use work as follows.

On the inside pane, the latest magnetron-coated ‘Low-E’ or Low Emissivity glass is used, which has an invisible coating on it that dramatically reduces heat transfer and also increases heat reflection back into the room. Therefore, glass without a low-e coating will absorb the heat from your home and radiate it out onto the colder outer pane, where it is more easily lost. Low-e glass has a special coating which is a poor radiator of heat and does not allow heat to be transferred to the outside.  Instead, the low-e coating actually reflects the heat back into your room.

On the outer pane, an ultra-clear Low Iron Glass is used, which not only allows as much light into the property as possible but also brings in the suns rays increasing the windows ‘solar gain’, which means you’re heating up your home with free energy from the sun as opposed to reflecting it back out as you would with other less energy-efficient glass.

The importance of energy efficiency is clearly demonstrated by the British Fenestration Rating Council’s (BFRC) introduction of the Window Energy Ratings Scheme. With this universal rating scheme, it is at long last, now possible for residential customers to easily and independently compare window products just as they do with cars, fridges or washing machines. This is great news for the consumer who now have a much better idea about the thermal efficiency of the windows they are buying.

The BFRC rate the windows from A+ to G, with A+ being the most energy-efficient and G being the least. Those achieving a C-rating or above demonstrate they have been designed, manufactured and tested to provide a good level of overall thermal efficiency. Thankfully, all window installers must install at least a ‘C’ rated or above window.

Our Residence 9 and Evolution windows come with a comprehensive, insurance-backed 10 year guarantee.

Not only do we guarantee our timber alternative products to you, but for added peace of mind, we also pay to have our guarantees insurance-backed, so if anything happened to us as a company, you can rest assured in the knowledge that you still have your full guarantee. The guarantee for these windows covers the installation, frame, colour, handles, hinges and the glazed unit for 10 years. Everything except accidental damage or misuse is covered.

We are also members of CERTASS, who are a recognised governing body designed to improve the workmanship and customer service in our industry. CERTASS anonymously check much of our work to make sure we’re doing what we should be.


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Discuss your project with us further by booking a design consultation.

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