Sash Window Installation Process
Replacing your old sash windows is a smart investment that not only improves your home’s energy efficiency but also boosts its overall market value. Knowing what to expect during the sash window installation process can make the experience smoother and help you prepare effectively.
1. Pre-Installation Window Survey
When you contact us to discuss replacing your sash windows, we will ask you to provide some photos of your current windows and a few additional details. This information will help us understand the scope of work and allow us to give you a indicative cost. If you’re happy to proceed, we’ll then arrange an on-site survey. This allows us to thoroughly examine your windows and ensure we recommend the best package to fit your needs.
After the survey, we’ll send you a detailed quote that outlines the scope of the proposed work and a clear breakdown of costs.
After you accept the quote, we will provide you with a proposed start date. As this date approaches, we will assign a team member to visit your property and take precise measurements of all the windows. This will allow us to create accurate replicas.
2. Preparing Your Home for a New Window Installation
On the day of your sash window installation, our team will require clear access to the windows. Our window installers will use dust sheets to protect the surrounding area.
However, we do recommend removing any fragile items, curtains and nearby furniture in advance. We always make it a priority to clean as we work, keeping your home as tidy as possible.
3. Removing Old Windows
Our joinery team will carefully and professionally remove your original sash and case window. We take great care to ensure there is minimal disruption to your home, but it’s important to be prepared for some noise and dust during this stage of the process.
Our installers will use specialised tools and techniques to reduce the impact on surrounding walls and finishes, ensuring a clean and controlled window removal.
4. Installing the New Sash Windows
Now comes the exciting part, installing your new sash windows!
Our installers ensure each frame is level and securely fixed. Once the frames are in place, any surrounding gaps are insulated to improve thermal performance and reduce air infiltration. Next, we will install the sashes and their weights, carefully testing them to ensure smooth operation and precise alignment. Additionally, the exterior perimeter will be sealed with traditional sand mastic, providing a flexible and breathable finish that meets listed building and conservation standards.
5. Finishing Touches
Painting is carried out a couple of weeks later, once everything has had time to fully settle and cure into place.
All our windows are finished with Remmers, the market-leading paint system for timber windows. We use a three-coat process (primer, undercoat, and topcoat), applied through a combination of spraying and detailed brushwork to achieve a smooth, durable and elegant finish.
To help you preserve the longevity of your windows, please follow our sash window maintenance tips that will help keep your new windows in excellent condition.
6. Window Payment Plans
To make upgrading your sash windows easier than ever and more affordable, we are now able to provide flexible finance options tailored to fit a variety of budgets. Whether you prefer short-term payments or longer-term plans, we have solutions designed to make your investment simple and manageable.
7. New Sash Window Warranty
We stand by the quality and durability of our work, which is why we offer an extended 5-year guarantee on all glass installations. This gives you added peace of mind, knowing your windows are built to last and perform reliably for years to come.
In addition, we provide a 5-year guarantee on all timber components. This ensures your investment is protected and reflects our confidence in the craftsmanship and materials we use. With these guarantees, you can feel fully supported and reassured when choosing Eco Sash & Case.
By understanding each step, you’ll feel more confident and prepared about what to expect during a sash window installation process—and ready to enjoy the timeless elegance of your new sash windows.
