In recent years, the Residence Collection has established itself as a premium timber-effect uPVC window system, praised for its conservation compliance, thermal efficiency, and attractive appearance.
Once you’ve decided to install Residence windows, you’ll likely be comparing the Residence 7 and Residence 9 systems – both offer excellent performance, but with a few key differences.
As the name suggests, Residence 9 windows feature nine heat-trapping chambers, while the Residence 7 option includes seven, making the R9 system slightly more thermally efficient.
In this blog, we’ll take a closer look at the differences between the two and help you decide which is best suited to your South East home.

Before we explore the differences, here’s what makes the Residence collection the success that it is.
The residence collection represents the pinnacle of timber alternative window design. Each system within the range combines cutting-edge technology with traditional aesthetics, offering homeowners virtually maintenance-free solutions without compromising on authentic appearance.
These windows incorporate advanced multi-chamber uPVC designs that deliver superior thermal efficiency compared to aluminium or traditional timber materials. The collection caters to diverse architectural styles, from Georgian bars and Victorian properties to contemporary new builds requiring a heritage twist.
Residence 9 is the original heritage window system, expertly designed to meet the requirements of Article 4 Conservation Areas and faithfully replicate 19th-century timber window designs. With a 100mm deep profile, nine internal chambers, and fully foiled rebates, it offers an authentic timber appearance that’s ideal for traditional and period properties.
In contrast, Residence 7 brings modern versatility in a more compact 75mm frame depth. Its seven-chamber design delivers impressive thermal efficiency, while the flush sash both inside and out creates balanced glass sightlines for a clean, contemporary finish. This makes it suitable for both modern new builds and traditional British homes.
Both Residence 7 and Residence 9 feature flush exteriors, meaning the glass sits level with the frame for a sleek, uniform appearance. However, they differ on the inside:

Both systems deliver exceptional thermal efficiency, but Residence 9 takes the lead with its nine-chamber design. This advanced configuration can achieve A++ Window Energy Ratings with double glazing and U-values as low as 0.8 with triple glazing.
Residence 7’s 7-chamber system still provides excellent insulation, making it suitable for modern building regulations whilst offering improved performance over standard 3 or 5-chamber alternatives.
Both systems incorporate:

The Residence collection excels at replicating traditional timber aesthetics whilst incorporating modern technology.
Both systems feature fully foiled rebates and authentic detailing that captures the feel of the period.
With 23 heritage colours including Irish Oak and English Oak, plus authentic hardware like monkey tail fasteners and period handles, these windows are virtually impossible to distinguish from original timber frames.
Unlike traditional timber windows that require regular painting, treating and maintenance, the Residence collection offers virtually maintenance-free performance.
The advanced uPVC materials resist weathering, warping and decay whilst maintaining their appearance year after year.
Homeowners can enjoy authentic timber aesthetics without the ongoing costs and effort of traditional wood maintenance.
Residence collection windows significantly outperform traditional timber in terms of longevity and structural integrity.
Where timber frames can suffer from rot, warping and insect damage over time, these advanced uPVC systems maintain their performance and appearance for decades.
The multi-chamber construction provides superior strength and stability compared to timber alternatives, ensuring long-term reliability and value for money.

Double Glazing Direct offers an extensive range of colours and finishes across both Residence 7 and Residence 9 systems. Choose from 23 charming heritage colours including Irish Oak, English Oak, Cotswold Green and Eclectic Grey.
Our Residence collection windows come with authentic period handles, monkey tail fasteners and traditional Georgian bars to complete the heritage look. Dual colours options allow different internal and external finishes, whilst decorative glazing adds privacy and character.
All installations include butt hinges and authentic hardware that complement each system’s design philosophy. Whether you’re renovating Victorian properties or building contemporary homes, our experienced installers ensure perfect integration with your property’s character.
Residence 9 is specifically designed for Article 4 Conservation Areas and heritage properties requiring authentic timber replication.
Yes, both Residence 7 and Residence 9 can meet low-energy PassiveHaus standards with appropriate glazing specifications.
Both systems offer the same vast colour palette of 23 heritage colours plus dual colour options.
Conservation area properties may require permission, but our team provides guidance on local requirements and regulations.
Residence 9’s 9-chamber design provides superior thermal efficiency compared to Residence 7’s 7-chamber configuration, though both exceed standard alternatives.
Double Glazing Direct Ltd is a full-service double glazing company serving Buckinghamshire, Hertfordshire, and Oxfordshire with high-quality, cost-effective home improvements. As Which? Trusted Traders, we provide sincere, straightforward and streamlined service to homeowners and businesses across the region.
Operating from our dedicated showroom at Unit 53 Edison Road in Aylesbury, we offer decades of unmatched experience in double glazing installations. Our trained installers and surveyors work to strict industry standards, ensuring every project fully complies with the latest Building Regulations whilst delivering a welcoming, respectful and uncomplicated experience.
We hold FENSA certification, DBS checks and CHAS Advanced accreditation, demonstrating our commitment to professional standards. From our Aylesbury base, we supply, install and maintain premium double glazing solutions including uPVC windows, aluminium systems and the complete residence collection. Contact us through our online contact form, call 01296 320252, or visit our showroom to discover how our expertise can transform your property whilst preserving its unique character.
