2 October 2025

Secondary Glazing Upgrades Vs Double Glazing Replacements

Secondary Glazing Upgrades Vs Double Glazing Replacements

Quality You Can Trust

  • Energy saving
  • Free quotations
  • After sales care
  • 10-year guarantee
  • Planning regulations
  • Building regulations
  • Product design
  • Increased security

How can Nolan help you today?

Get in touch to arrange your free design appointment or visit one of our showrooms to see our range of products on display.

Book an Appointment

0345 658 8401

Are you contemplating ways to enhance your home's energy efficiency and comfort? Two popular methods are upgrading to secondary glazing and replacing existing windows with double glazing. Understanding the distinctions between these options is vital for making an informed choice. In this post, we dive into the specific benefits and considerations of each to help you decide the best fit for your home. 

Secondary Glazing Upgrades:

Secondary glazing involves installing an additional layer of glass or clear plastic inside your existing windows. This solution is perfect for those who wish to improve thermal insulation and reduce noise without altering the existing window frames. Secondary glazing is particularly appealing for listed properties or homes in conservation areas where changing the external appearance of buildings is restricted.Advantages of Secondary Glazing:
  • Improved heat retention, leading to reduced energy bills.
  • Enhanced sound insulation which is ideal for homes in noisy environments.
  • Minimal disruption during installation, as existing windows remain untouched.
  • Less expensive than complete window replacements.
 Despite these benefits, it's important to note that secondary glazing does not offer the same level of airtightness as double glazing and can sometimes be visually less appealing than a completely new set of windows.  sliding sash window prices port talbot  

Double Glazing Replacements:

Replacing old windows with new double glazed units involves removing the existing frames and glass, replacing them with new ones that have two panes of glass separated by an inert gas layer. This modern solution is highly effective at insulating homes against both heat loss and external noise.Benefits of Double Glazing:
  • Superior thermal performance, which can significantly cut heating costs.
  • Reduced condensation inside the window panes due to improved temperature regulation.
  • Increased property value as double glazing is a desirable feature for home buyers.
  • Variety in styles and frames, allowing customisation to suit your home's aesthetic.
 While double glazing offers numerous advantages, it is typically more costly than secondary glazing and requires more extensive installation work. It can also change the appearance of historic properties, which might not always be possible if there are architectural preservation requirements.  roof lantern swansea  

Which Option Should You Pick?

Choosing between secondary glazing and double glazing replacements depends largely on your specific needs and circumstances:1. Property Type:
  • If you live in a listed building or conservation area, secondary glazing may be your best or only option.
 2. Budget:
  • If cost is a significant concern, secondary glazing offers a budget-friendly alternative to double glazing.
 3. Performance Needs:
  • For maximal thermal efficiency and noise reduction, double glazing is the superior choice.
 4. Installation and Disruption:
  • If you’re looking for a less invasive solution that doesn’t require major alterations to your home, secondary glazing is quicker and easier to install, with minimal disruption.
 Ultimately, the right choice comes down to balancing performance, budget, and any restrictions your property may have. Consider your long-term goals, such as aiming for energy savings, comfort, or preserving a historic home, and then select the option that best aligns with those priorities.  upvc windows vs aluminium nolan 

Still Unsure About Which Glazing Option to Choose?

At Nolan UPVC, we can guide you through your options with expert advice tailored to your unique situation. Whether it's maintaining the charm of your period property with secondary glazing or updating your home with high-performance double glazing, we have the knowledge and experience to assist you.Enhance your comfort, reduce your energy bills, and maybe even increase the value of your home with the right glazing choice for your property. Contact us to learn more about how we can help you achieve your goals and make your home a better place to live.Get in touch with us on 0345 600 9080 to discuss your home improvement plans and get your free quote today 
Jason James

© 2025 Nolan uPVC Ltd | Privacy Policy | Cookie Policy | Terms of Use | Complaints | Consumer Regulations Cancellation Form

Start My Quote Book an Appointment