Heritage uPVC Windows: The Ideal Trade Solution for Period-Style Projects

September 22, 2025

For installers working on period-style projects, finding the right balance between preserving traditional charm and meeting modern performance standards is a familiar challenge. Heritage uPVC windows offer a smart, compliant, and visually authentic solution. Designed to replicate the classic appearance of timber while delivering the benefits of modern uPVC, they’re becoming the go-to choice for trade professionals tackling renovations, refurbishments, and projects in conservation areas. 

In this guide, we’ll explore why heritage uPVC windows are the ideal solution for period properties, and how they help installers meet aesthetic and regulatory expectations without compromise. 

Why are heritage uPVC windows in high demand?

Over recent years, demand for heritage uPVC windows has grown significantly, especially within the renovation and refurbishment market. Installers are increasingly asked to deliver window replacements that meet the strict requirements of conservation areas or that match the look and feel of traditional timber windows. What’s driving this trend? 

•          Energy efficiency standards in older homes are stricter than ever
•          Planning and heritage officers demand authentic design
•          Homeowners want performance, without losing period charm
•          Modern uPVC now replicates timber with impressive accuracy

Heritage uPVC windows, such as those in Dekko’s Residence Collection and Deceuninck heritage collection, have proven themselves to meet both visual and technical standards. 

Designed to pass the test of time

Heritage-style uPVC windows are engineered to look like traditional timber, but they’re also built to last. Unlike timber, uPVC doesn’t warp, crack, or require ongoing painting and sealing, making them a low-maintenance, long-term option for homeowners. 

With an authentic timber-look flush sash, these windows reflect the subtle, understated elegance expected in heritage settings. The face of the window frame is detailed to mimic original joinery, while the window sash replicates classic sightlines. 

A great option for listed and character properties

For projects in sensitive locations, particularly conservation areas or listed buildings, visual accuracy matters. Many planning authorities insist on maintaining the traditional features and proportions of the original building. Dekko’s Residence Collection heritage windows are specifically designed with this in mind, featuring: 

•          A flush sash design that mirrors original timber casements
•          Mechanical joints, replicating traditional craftsmanship
•          A range of glazing options, including period-style Georgian bars
•          A wide range of colours, from heritage-inspired tones to realistic woodgrain foils
•          A full range of hardware, from traditional handles to classic peg stays

These windows blend seamlessly into period homes while offering modern energy efficiency and performance. 

Traditional appearance, modern performance

Homeowners love the charm of timber windows but not the upkeep. Heritage uPVC gives them the look they want, with none of the ongoing maintenance. While aesthetics are essential for heritage-style projects, performance can’t be ignored, especially with current regulations around thermal efficiency. Modern heritage uPVC windows offer: 

•          Excellent energy efficiency, meeting or exceeding current U-value targets
•          High-performance double glazing, reducing heat loss and condensation
•          Durable weather sealing, to protect against the elements
•          Multi-point locking systems, improving security without compromising on style

This means installers can confidently specify heritage uPVC windows in projects where both style and substance are essential. 

A wide range of window styles to suit any period property

Heritage homes vary in design and period. Whether your customer lives in a Victorian terrace, Georgian townhouse, or rural cottage, Dekko offers a range of window styles to suit. Popular options include heritage sash windows, which are ideal for Victorian and Georgian homes, and flush casement windows, which are suited to cottages. 

Each window style is carefully designed to replicate the classic appearance of traditional timber frames, right down to the face of the window and the proportions of the sash. 

Helping installers meet conservation area requirements

Working in conservation areas requires attention to detail. Every component from window style to colour, glazing and hardware must align with local authority requirements. Dekko’s heritage uPVC solutions help installers stay compliant: 

•          Authentic timber-look flush sash design
•          Range of colour-matched accessories and hardware
•          Woodgrain foils that replicate painted timber
•          Pre-approved designs in many local authorities
•          Expert support from Dekko’s experienced team

A wide range of colours

Colour flexibility is key when it comes to heritage projects and heritage uPVC windows are available in a wide range of colours. From soft creams and subtle greens to bold heritage tones like Chartwell Green and Anthracite Grey, Dekko’s window colour options help installers meet homeowner preferences while satisfying conservation requirements. They include: 

•          Traditional woodgrain finishes, including Rosewood, Irish Oak, and Golden Oak
•          Smooth matt finishes, for a painted timber look
•          Dual colour options, for different internal and external finishes

What makes heritage sash windows different?

Heritage sash windows are designed to replicate the vertical sliding sash style seen in Georgian and Victorian homes. With slim sightlines, authentic glazing bars, and a classic face of the window frame, these uPVC alternatives offer traditional aesthetics with 21st-century benefits. 

Tailored solutions backed by Dekko’s expert team

Dekko has over two decades of experience supplying high-performance window systems to the trade. Our team understands the pressures of heritage installations and is here to support you at every step with: 

•          Fast, reliable supply chains
•          Technical documentation
•          Training on installation techniques
•          Dedicated account management

With Dekko’s heritage collection, installers gain access to a product range built around flexibility, compliance and long-term performance. 

Ready to specify heritage uPVC windows?

At Dekko, we supply a full range of heritage uPVC windows tailored to meet the demands of trade installers working on period-style projects. Whether you’re renovating a character cottage or tackling a large-scale development in a conservation area, our heritage window solutions deliver on every front, with modern uPVC construction and period-accurate detailing. 

Get in touch with Dekko today for a quote or to learn more; we’re here to help you deliver compliant, high-performance heritage windows that stand the test of time. 

Key takeaways

•          Heritage uPVC windows combine period charm with modern performance
•          Ideal for conservation areas, period homes, and listed buildings
•          Available in flush sash and sash window styles
•          Low-maintenance, energy-efficient and secure
•          Wide range of glazing, colour and hardware options
•          Designed to replicate the appearance of timber in every detail

FAQs

Are heritage uPVC windows suitable for conservation areas?

Yes, many designs meet conservation requirements and replicate timber accurately. 

Do heritage uPVC windows offer good energy efficiency?

Absolutely – they feature double glazing and advanced seals for optimal insulation. 

Can I get custom colours and hardware?

Yes, Dekko offers a wide range of colours and traditional-style hardware options.