Double-Hung Windows vs Single-Hung Windows
James Elston

James Elston

Published March 13, 2025

Last Updated on March 14, 2025

When choosing the right windows for your home, it’s essential to weigh the benefits of different types of windows. Among the most popular options are double hung and single hung windows. 

If you’re considering replacing your windows or upgrading your home, understanding the differences between these two window types can help you make an informed decision.

In this comprehensive guide, we’ll break down the key features, advantages, and considerations of double hung vs single hung windows. By the end, you’ll know which option suits your needs, whether you’re a homeowner or landlord in the UK, or you’re managing a commercial building. 

Let’s dive into the comparison to help you choose the perfect window for your property.

Double Hung Window vs Single Hung: A Quick Comparison

Below is a quick overview of the key differences between double hung and single hung windows:

FeatureDouble Hung WindowSingle Hung Window
Aesthetic AppealSleek and modern, versatile designsTraditional and classic look
Opening MechanismBoth sashes open, providing maximum airflowOnly the lower sash opens
VentilationExcellent airflow from top and bottomLimited ventilation from bottom only
Energy EfficiencyBetter for energy efficiency due to better insulationSlightly less efficient but still reliable
SecurityHigher security with both sashes lockableSecure, but only one sash is lockable
CostMore expensive due to complexityMore affordable
Best Suited ForHomes with modern aesthetics or areas needing extra airflowClassic homes or where space is limited

Double Hung Window vs Single Hung: Which Is Better?

When deciding between double hung windows and single hung windows, there are several factors to consider. Let’s break down each window type in more detail, along with expert insights on how each works.

How Double Hung Windows Work

Double hung windows feature two sashes, both of which can move vertically. This allows for maximum flexibility in ventilation, as the window can be opened from both the top and the bottom. The upper sash slides down, and the lower sash slides up. 

These windows are easy to operate and ideal for areas that require better airflow, such as kitchens and bedrooms.

Key Features of Double Hung Windows:

  • Two movable sashes for flexible ventilation
  • Can be opened from both the top and bottom
  • Easy to clean, especially with tilt-in features for both sashes
  • Available in various materials such as uPVC, timber, and aluminium

Pros and Cons Double Hung Windows

Pros
  • Excellent ventilation options (top and bottom)
  • Easier to clean due to movable sashes
  • Aesthetically pleasing and versatile
  • Increased natural light intake due to full openness
Cons
  • More expensive than single hung windows
  • Can be less secure if not properly locked
  • Installation can be more complicated
  • Slightly higher energy costs in some designs

How Single Hung Windows Work

Single hung windows feature only one movable sash, which is the lower one. The upper sash remains fixed. This design is simpler than the double hung window, making it more affordable and slightly easier to install. 

While the lack of a movable upper sash reduces ventilation options, it’s still a reliable choice for many homes.

Key Features of Single Hung Windows:

  • One movable sash (lower), the upper sash remains fixed
  • Cost-effective and simpler design
  • Easy to maintain and operate
  • Available in various materials such as uPVC, timber, and aluminium

Pros and Cons Single Hung Windows

Pros
  • More affordable than double hung windows
  • Simple design makes installation quicker
  • Easier to maintain and clean
  • Good for homes with limited space
Cons
  • Limited ventilation options
  • Less flexibility in airflow control
  • Cannot fully open the top for better airflow
  • Aesthetically less modern than double hung windows

Which Property Types Are Best for Double Hung vs Single Hung?

Best Properties for Double Hung Windows:

  • Modern homes: The versatility and aesthetic appeal of double hung windows make them a great fit for contemporary properties.
  • Properties requiring improved airflow: Ideal for areas that need more ventilation, such as kitchens or bathrooms.
  • Spaces with restricted access: Double hung windows can be opened from the top, making them perfect for areas where it’s difficult to access the window from the outside.

Best Properties for Single Hung Windows:

  • Traditional homes: The classic look of single hung windows fits well in older, more traditional-style homes.
  • Homes with budget considerations: Single hung windows are more affordable and a great choice for homeowners looking to save money.
  • Smaller properties or apartments: The simplicity of single hung windows makes them ideal for compact spaces where ease of installation and low maintenance are priorities.

Double Hung Window vs Single Hung Materials

Both double hung and single hung windows come in a variety of materials, each with its advantages. Let’s discuss the most common options:

  • uPVC (Unplasticised Polyvinyl Chloride): Affordable, low-maintenance, and energy-efficient, uPVC is a popular choice for both window types.
  • Timber: Offers natural aesthetics and is highly insulating. Ideal for period properties or those looking for a more traditional style.
  • Aluminium: Lightweight and durable, aluminium windows are resistant to corrosion and offer a sleek, modern look.

View & Natural Light Intake

Both double hung and single hung windows can provide excellent views, but double hung windows are often preferred for their ability to open fully, allowing more light and air into a room. 

The extra ventilation from both the top and bottom also makes these windows better suited for homes where natural light intake is a priority.

Insulation & Energy Efficiency

Glazing Options

Here’s a quick overview of the different glazing options available for both window types:

Glazing TypeSingle GlazingDouble GlazingTriple Glazing
Price per Window£200-£250£300-£400£450-£600
Energy EfficiencyLowModerateHigh
Noise InsulationPoorGoodExcellent

Double glazing is the most popular choice for both window types. It provides a better level of insulation, reducing heat loss and keeping your home warmer in winter. 

Triple glazing offers even better insulation and noise reduction but comes at a higher cost.

Ventilation & Draughts

When it comes to ventilation, double hung windows are superior. Both sashes open, allowing air to flow freely. On the other hand, single hung windows only allow ventilation from the lower sash, limiting airflow. This can result in poor ventilation, especially in hot or stuffy rooms.

Security Features

In terms of security, both window types provide reliable options. However, double hung windows may be more secure due to their ability to lock both sashes, preventing intruders from entering through the top or bottom. 

Single hung windows, with only one movable sash, are still secure but provide fewer locking mechanisms.

Maintenance & Longevity

Here’s a comparison of the maintenance and longevity for both window types:

FactorDouble Hung WindowsSingle Hung Windows
CleaningEasier to clean due to tilt-in featuresRequires cleaning from outside, harder to reach
Wear & TearHigher due to more moving partsLower due to simpler design
LongevityLong-lasting with proper careGenerally lasts a long time, with fewer moving parts

While both window types are durable, double hung windows may require more maintenance due to their complex mechanisms. Single hung windows are simpler and tend to last longer with less upkeep.

Costs & Installation

The price of new windows depends on several factors, including their dimensions, the type of material used, the glazing options selected, and the complexity of the installation process. Below, we’ll compare the average prices of double hung and single hung windows:

Window TypeuPVCTimberAluminium
Double Hung£450-£650£700-£900£800-£1,000
Single Hung£350-£500£500-£700£600-£800

Installation Requirements & Timeframe

Double hung windows may take longer to install due to their more complex design and need for precise alignment of both sashes. 

Single hung windows, with their simpler mechanism, are quicker to install.

Which Is Best for Your Home: Double Hung Window vs Single Hung?

Choosing between double hung windows and single hung windows depends on several factors, including budget, ventilation needs, aesthetic preferences, and energy efficiency goals.

If you’re looking for superior airflow and modern appeal, double hung windows are the way to go. However, if you’re on a budget and prefer a traditional look, single hung windows are an excellent choice.

Comparing Other Window Styles

When choosing the right window style, it’s important to consider factors like functionality, ventilation, aesthetics, and maintenance. Here’s how double-hung windows compare to other popular options:

Double hung window vs sliding window – Both styles offer excellent ventilation, but double-hung windows allow for more precise airflow control with their operable top and bottom sashes. 

Sliding windows, on the other hand, provide a wider, unobstructed view and are easier to operate, making them a great choice for hard-to-reach areas.

Double hung window vs casement window – While double-hung windows open vertically, casement windows swing outward, offering maximum ventilation and a tight seal for improved energy efficiency. 

Casement windows are often preferred for modern designs, whereas double-hung windows suit traditional aesthetics and require less exterior clearance.

Request a Free Quote for Double Hung Window vs Single Hung

Ready to replace your windows? Whether you’re leaning towards double hung windows or single hung windows, our team is here to help you find the perfect fit for your home. Request a free, no-obligation quote today, and let us assist you with expert advice, fast installations, and high-quality windows.

James Elston

James Elston

Boiler Expert


James Elston is the top boiler replacement and heating expert at Eco Happy. He has over 20 years of experience in the industry, focusing on Gas Safe boiler installations and offering home-heating and energy-saving solutions to homeowners across the UK. From sourcing the most energy-efficient combi boiler to providing specialist heating advice, James ensures that Eco Happy maintains the highest standards and best customer service.

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