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Sash windows are among the most visible features of a period property. If you are considering replacing or restoring them, cost will be the first consideration. The cost of any wooden windows depends on several factors, including their dimensions, the wood used, the glazing, and whether they are standard or custom-made, so it’s difficult to determine prices without some research beforehand. This guide explains all the factors that drive the cost of timber sash windows so homeowners can plan realistically.
How much do timber sash windows cost on average?
Timber sash windows cost fluctuates with size, timber type, glazing, and whether the design is standard or bespoke. However, there is no single fixed figure that applies to all properties, and it is helpful to understand the variables before asking for quotes.
- Average cost per timber sash window The price of the windows tends to increase with size, the number of panes, and the complexity of the joinery. Generally, a small single window in one of the timber sash windows’ standard sizes is less expensive than a large bay window with multiple sashes. Additionally, bespoke shapes, such as arched or curved tops, are more expensive because they require more skilled craftsmanship.
- Supply-only vs supply and installation costs Some firms provide only a supply service, and the windows are manufactured and shipped, but fitted by your tradesperson. Others will even handle a full supply and installation, including removal of the old frames, fittings, and finishing. A full-service package from an established timber window company is usually more convenient, but if you already have a trusted joiner or builder, you can opt for supply-only.
What factors affect timber sash window costs?
Many practical considerations, such as timber selection and finishing details, affect the timber sash window cost.
- Window size and dimensions The larger the windows, the more material and labour are required to make and install them, so the cost is higher.
- Timber type Generally, hardwoods like oak or Accoya are more expensive than softwoods but are more resistant to rot and have higher durability. This can save on maintenance expenses.
- Bespoke vs standard designs Standard sizes and designs are normally more affordable because they can be manufactured much more efficiently. In addition, bespoke timber sash windows are more ornate, with unusual openings or heritage specifications, and require more design time and custom joinery.
- Double glazing and energy efficiency Double-glazing sash windows cost more than single-glazing, but, over time, have less heat loss and lower energy bills due to their superior thermal insulation.
- Hardware, ironmongery, and finishes All of the extra accessories (sash lifts, catches, weights, and cords) increase the price. The original brass fittings or heritage-style ironmongery can also affect the value.
- Installation complexity Older properties may also have irregular openings or other features that require more labour during the fitting stage, thereby increasing labour costs.
Timber sash windows cost breakdown
- Window manufacturing costs This covers the timber, joinery, glazing units, and craftsmanship involved in building each sash window to specification.
- Removal and disposal of old windows Removing old frames and disposing of them responsibly is often included in installation packages, but should be confirmed with your supplier.
- Decorating and finishing costs Painting, staining or sealing the timber adds a finishing touch and helps protect the wood from the elements.
- Maintenance costs over time Sometimes, there are requirements for timber sash window repairs such as re-cording or re-glazing, which should be factored into your long-term budget alongside the initial purchase.
Timber sash windows vs uPVC sash windows: Cost comparison
Generally, uPVC sash windows are less expensive to purchase initially; however, timber windows are more durable. They can be repaired rather than replaced, and that is aesthetically pleasing for period houses.
- The installation cost of timber sash windows is higher than that of uPVC sash windows.
- Timber sash windows give an authentic and traditional look, whereas uPVC is less suitable for heritage character.
- Timber windows have a longer overall lifespan with good management, whereas uPVC sash windows have a shorter lifespan.
- Timber windows are easily fixable, but uPVC usually needs full replacement.
- Both windows have good energy-efficiency features with double glazing.
- Timber increases the value in period homes, whereas uPVC shows a neutral or slight increase in value.
Are timber sash windows worth the investment?
Timber sash windows are generally a worthwhile investment, especially on period & heritage properties. They maintain architectural authenticity, enhance a property’s value, and are repaired rather than completely replaced when problems arise, which many uPVC alternatives cannot.
Hidden costs homeowners should budget for
- Planning permission or conservation area approval, if applicable
- Scaffolding or access equipment for upper-floor windows
- Redecorating internal reveals and sills after installation
- Draught-proofing or further insulation work
Budgeting Tips for Your Home Improvement Project
Allocate your budget correctly at the planning stage, and you can save yourself a lot of headaches in the long run and avoid any financial problems later.
- Maintain a 10-15% contingency fund for unforeseen structural work or repairs.
- Get itemised quotes so you know what you are paying for, from materials to finishes.
- Request at least two or three estimates and compare the prices and services fairly.
- If the budget cannot be allocated all at once, consider tackling the project one room at a time.
- Don’t only consider the initial installation price; consider the long-term maintenance expenses as well.
Conclusion
Budgeting for timber sash windows requires a bit of work, but understanding the factors that influence costs makes the process much less challenging. SJB Sash Windows has extensive experience in creating traditional and bespoke timber sash windows for homeowners seeking authenticity and quality. They take a hands-on approach to building and understand the property, helping people to make confident, informed decisions about their home improvement projects. If you are looking to explore options that would be more appropriate for your property, getting in touch with a trusted specialist is a sensible next step.
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