How Much Do Double Hung Windows Cost?

Double hung windows are a classic and functional choice for UK homes, featuring two vertically sliding sashes that allow for ventilation from both the top and bottom. Known for their traditional appeal and ease of cleaning, they’re a versatile option for many properties. In 2025, with enhanced glazing and material options, double hung windows offer a blend of style and practicality. This guide breaks down their costs, benefits, and key factors to consider for installation or replacement in the UK.

Double hung windows often fade into the background of daily life—until they jam, leak, or show signs of wear. Figuring out their replacement cost can feel complex with so many variables like size, material, and labour to consider. Whether you’re updating a period home or improving airflow, knowing the price details is a critical first step.

Typical Double Hung Window Costs by Size

The cost of double hung windows varies by size and glazing type. Below is a table showing typical dimensions and cost ranges in the UK for 2025 (including standard installation):

Width (mm)	Height (mm)	Glazing	Cost Range (uPVC)	Cost Range (Aluminium)
600	1200	Double	£300-£450	£400-£550
900	1500	Double	£400-£600	£500-£700
1200	1500	Double	£500-£750	£600-£850
1200	1800	Triple	£600-£900	£700-£1,000

In the UK, double hung window costs typically range from £300 to £1,000 per window, depending on size, material, and glazing. These windows withstand years of use, but exposure to rain, wind, and cold can eventually take a toll. If yours are sticking or draughty, replacement might be overdue.

Material Cost Comparison

Before investing in double hung windows, it’s worth doing some homework. What’s the installation cost, and which material matches your home’s look? Your choice depends on budget, maintenance willingness, and design goals. Here’s a table comparing materials for a standard 900mm x 1500mm double hung window:

Material	Cost Range	Pros	Cons
uPVC	£400-£600	Cost-effective, low maintenance	Simpler aesthetic
Aluminium	£500-£700	Strong, slim frames, modern	Less insulating, higher cost
Timber	£650-£950	Traditional charm, good insulation	Requires upkeep

How much do double hung windows really cost? Beyond size and material, factors like glazing upgrades or custom colours can increase the price. uPVC is ideal for affordability, timber suits heritage properties, and aluminium offers a contemporary edge.

Factors Affecting Double Hung Window Costs

Considering repairs instead? A stuck sash or broken seal might not require a full replacement—repairs typically cost £100-£300, depending on the damage. But if energy efficiency or ease of use is declining, new windows could be the better option. Here’s what impacts double hung window costs:

Factor	Description	Impact on Cost
Size	Larger windows use more materials	Adds £100-£250 per size increase
Glazing	Double vs. triple glazing	Triple glazing adds £50-£150
Material	uPVC, aluminium, timber	See material table
Labour	£100-£250 per window	Higher in urban areas
Sash Mechanism	Springs, weights, or pulleys	£20-£100 for upgrades

Repair or replace? If your double hung windows slide smoothly and damage is minimal, a repair might do. But if sashes are stiff or energy costs are rising, replacement offers better efficiency and comfort. A professional can help you decide what’s best.

Additional Installation Costs

Choosing double hung windows is about balancing form and function. Want easy cleaning or a classic look? uPVC keeps things simple, timber adds heritage appeal, and aluminium brings a modern twist. Here’s a breakdown of extra costs:

Expense	Typical Cost	Notes
Removal of Old Window	£50-£150	Depends on size and state
Scaffolding	£200-£400	For upper floors
Building Regulations	£100-£150	FENSA certification
Finishing (e.g., trim)	£20-£50 per window	Optional interior/exterior work

Materials affect cost and care—uPVC is low-maintenance, timber needs regular attention for its beauty, and aluminium offers lasting strength. Glazing upgrades like triple panes or low-e coatings add £50-£150, enhancing efficiency. A typical replacement might total £450-£1,200 per window with extras.

Return on Investment (ROI)

Double hung windows bring both comfort and value—here’s how they pay off:

Benefit	Estimated Savings/Value	Timeframe
Energy Savings	£50-£200/year	Ongoing with efficient glazing
Property Value Increase	1-3% of home value	Upon resale
Payback Period	10-15 years	Based on savings and value

Final Thoughts

Double hung window costs in 2025 range from £300 for a small uPVC unit to £1,000 for a large timber or aluminium one. Size, material, and installation extras shape the price, but their ventilation, ease of cleaning, and timeless appeal make them a strong investment. Get three quotes from FENSA-registered installers to secure quality and value—double hung windows are a practical upgrade for any UK home.