Exterior sash windows painting using paint spraying.
If you want to find out more about sash window painting, you’ve come to the right place. Chameleon offers window restoration services that include paint spraying for your sash and casement windows.
After working extensively with private clients, we are now rapidly expanding to offer our services to commercial businesses that appreciate the speed, precision and professionalism.
Whether you’re a homeowner or business owner, you’ll need to refresh your paintwork every so often. For business owners, it’s even more important to keep your building facade with sash windows looking well kept.
There are a few telltale signs that it’s time to have your sash windows repainted, including:
Newly installed windows will typically need repainting between 10 and 20 years after installation, depending on their quality, the amount of UV exposure they receive and the paint colour (darker colours absorb more UV light and can degrade faster).
Older sash windows need more upkeep, with a typical maintenance cycle of around 3 to 5 years.
However, with the proper restoration, your sash windows can be repaired and the maintenance cycle pushed back to around 10 years.
This is achieved by repairing vulnerable parts of the window using Accoya or Tricoya timber, which helps prevent rot and peeling. You can read more about sash window repair on our website.
Painting with a brush is effective indoors and reduces the need to cover a large area with masking paper and tape.
It’s also good for those on a budget, who lack the proper equipment to spray paint or properties with only a small number of windows to cover.
If you’re completing the job alone, brush painting is the way to go.
However, with a small team of two to three professionals, extensive spray painting jobs can be completed in one day.
Your sash windows can be prepared for spraying in the morning and painted in the afternoon, with the job completed and all materials cleared away before the end of the day or the next day morning.
To achieve the perfect finish, a strict process must be followed. Our professionals have experience working with this equipment on a daily basis, and they have the knowledge needed to troubleshoot any problems that arise to achieve the perfect finish.
Without addressing any underlying damage, new paint on wooden windows won’t last for long.
Any signs of rot have to be removed, and all old paint has to be stripped away, otherwise, it will peel off under the layer of new paint.
Based on our experience 90% of damaged or ageing wooden windows can be repaired and upgraded.
To avoid getting paint on the surrounding areas, we apply heavy-duty masking tape and film onto the surfaces around the sash windows.
Sash windows glass isn’t covered with masking materials – unless it’s textured – as a sharper edge can be achieved when paint is cut away from the edge.
We use paint sprayers to paint sash windows. Once your surfaces are properly protected, we can start painting. The first layer, a thinner coat of paint, is applied as a fast-drying primer, followed by a second, thicker coat. We apply the equivalent of up to six coats of paint when compared to brush applications.
You should always start paint spray sash windows on upper floors first and move downward.
It is also a good idea to paint the sunny side of the building first as the paint will dry quicker for the second coat.
When the paint has dried on your new sash windows, it’s time to remove the masking materials from the surrounding areas and scrape off the paint from the glass, leaving neat, sharp edges.
Take a look at some of our finished projects to see the results you can expect.
You should first remove the masking paper from the window surrounding areas.
Be extra careful not to peel off the fresh paint, cut the masking tape edge close to the timber frame with a utility knife.
Professional decorating companies are quickly adopting spray painting as a preference over traditional brush painting methods. Not every company will offer this service, but spray painting sash windows is always our first choice. Here are just a few of the benefits of choosing a spray painting technique over brushes for your sash window:
When paint is applied with a brush or roller, user error can easily result in uneven coats. Aside from appearing rougher, this can also lead to chipping. Spray painting applies the paint more evenly across the sash window frames and mullions. There is also greater control over dispersion when painting, meaning that a primer and undercoat can easily be applied.
When the paint is sprayed, the fine particles are able to penetrate the wood’s surface at a deeper level; this results in greater coverage. Conversely, when applied with a brush, the paint sits on the surface of the wood. When your wood expands and contracts under natural temperature fluctuations, the paint can crack and allow moisture to penetrate the surface. This can then lead to peeling and flaking paint.
Since you’re not using a brush, there’s also no risk of bristles breaking off and becoming embedded in your paintwork.
Overpainting is also common when using a brush, which can lead to paint drips in the window runners. This is a common cause of sticking when sliding your sash windows; however, paint spraying avoids this problem.
Spray painting services cover a greater surface area in less time than it takes to apply paint using a brush. Our equipment allows us to cover all the windows in your property much more quickly.
When painting with a brush — especially the second coat — you can get lost (especially during the summer when paint dries very quickly) and miss some parts of the sash window. With paint spraying, it is very difficult to miss any part of the window, and because it takes up to 1 minute to apply one coat to one medium size sash window, you can visually inspect the surface for uncovered, dry areas.
Choosing the wrong paint for a sash window can result in some problems during spraying; some paint is not sprayable or needs to be thinned/diluted before spraying. You should check the tin before you buy it, as it will normally state whether the paint is sprayable or not.
Typically, if you need to thin a water-based paint, you do so by using a 30/70 proportion (water to paint); however, it’s not a strict rule for all types of paint, even those from the same batch.
They do not always have the same thickness, so you’ll need to develop a gut feeling for diluting the paint according to the current job’s requirements, equipment and temperature. We use all kinds and varieties of paints, and we select the appropriate paint depending on the job, temperature and the desired finish.
Water-based paints are the easiest to use, but the temperature has to be 15+ C, so it is not an option for cooler months. Oil-based paints can be used at any temperature above zero, but it takes more time to prepare and clean the equipment afterwards.