Residence 7 vs Residence 9: The Complete Comparison Guide

Category: Buying Guide / Windows
Reading Time: 8 Minutes

If you are looking for high-end timber alternative windows in Hampshire, you have almost certainly narrowed your search down to two names: Residence 9 (R9) and Residence 7 (R7).

At KJM Group, we install hundreds of these windows across Andover and the surrounding counties every year. The most common question we get is: “They look almost identical in the brochure—so what is the actual difference?”

1. The Technical Differences

Before we dive into the details, here is the quick technical comparison between the two systems:

2. Frame Depth: 75mm vs 100mm

The most critical structural difference is the depth of the frame. This dictates how the window sits in your brickwork and how much work is required to fit it.

The Residence collection offers stunning kerb appeal whether you choose R7 or R9.

3. The “Flush” Debate: Inside & Out

Both windows are “Flush Sash” windows, meaning the opening part of the window sits flat against the frame externally. They look almost identical from the kerbside.

If you prefer clean lines and a minimalist interior, R7 is often the winner. If you want your windows to look like pieces of furniture with grandeur, R9 is the choice.

The sleek flush exterior is a hallmark of the Residence Collection.

4. Joints: The Timberweld Revolution

Historically, uPVC windows were welded at 45 degrees, leaving a tell-tale diagonal line that ruined the “timber effect.” Residence 9 changed the game by using Mechanical Joints—frames that were screwed and glued together just like wood.

Today, technology has advanced further with Timberweld®.

What is Timberweld®?

This patented method allows us to weld the corners of the window for incredible strength, while creating an authentic “butt-joint” effect on both the inside and outside faces. It looks like a traditional mortise and tenon timber joint, but has the strength of a modern fusion weld.

• Residence 9: Can be specified with traditional Mechanical Joints or Timberweld® for the ultimate heritage look.
• Residence 7: Can also use Timberweld®, or you can opt for standard diagonal welds to keep costs down.

This means you no longer have to choose between “strong but ugly” welds or “beautiful but expensive” mechanical joints. Timberweld® gives you the best of both worlds.

Glass bonding is also available on both systems as an optional specification for enhanced security and rigidity in larger sashes.

5. Hardware & Aesthetics

Authenticity is in the details. Residence 9 is typically marketed as a heritage product. To satisfy conservation officers, R9 frames usually feature:

• Authentic Cills: Deep, raditional timber-effect cills (radlington).
• Monkey Tail Handles: Beautiful, hand-forged handles that replicate ironmongery from the 1800s.
• Working Butt Hinges: Unlike standard windows that slide on friction stays, R9 can be specified with working butt hinges for true authenticity.

Traditional Monkey Tail handles add the perfect finishing touch to heritage windows.

6. Frequently Asked Questions