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Improve Thermal Efficiency With Secondary Glazing for Home in Plymouth and Surrounding Areas

Name: DNA Window Solutions
Address: Unit 92, Christian Mill Business Park, Plymouth, Devon, PL6 5DS, GB
Telephone: 01752 938120
Price range: £100-£1000000

Secondary glazing is a cost-effective way of improving the insulation of single-glazed windows without having to replace them entirely. By installing a second pane onto single-glazed windows, we can increase your home’s thermal efficiency and improve acoustic insulation without having to replace the window frame.

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Why Choose Secondary Glazing?

Cost-Effective Option

Secondary glazing is often much cheaper than fully replacing your single-glazing and still improves thermal efficiency.

Enhanced Energy Efficiency

Secondary glazing can help keep your home warmer in the winter and lower your energy bills.

Acoustic Insulation

Our secondary glazing helps keep external noise out by improving acoustic insulation.

Ideal For Listed Homes

Our secondary glazing is ideal for period properties, which may have restrictions on replacing windows.

Save Existing Frames

Secondary glazing allows you to keep frames that are already in great condition and maintain the original aesthetics.

Quick Installation

Because it doesn't involve replacing the entire window, secondary glazing is often much quicker to install than new windows.

Secondary glazing on stained glass windows

Secondary glazing on white sliding sash windows

Secondary glazing white windows close up

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Secondary Glazing In The South West

We expertly install secondary glazing in properties across the South West, including Devon and Cornwall. Our team of experts will work with you to find the best solution for your home, and we take care to make sure that every project is completed with precision and professionalism.

We understand that renovation works can cause disruption, which is why we take every possible step to ensure a seamless and stress-free experience. Because secondary glazing doesn't involve replacing the entire window, we can also install it much quicker than if we were to install new windows.

Perfect For Listed Buildings

Older homes typically contain single-glazed windows, which aren't as thermally efficient and can lead to heat loss and higher energy bills. Listed buildings and properties in conservation areas can sometimes have restrictions which can make replacing single-glazed windows difficult or expensive.

Secondary glazing helps you improve the thermal efficiency of your windows without having to replace the frames, so its often a much better option in listed homes. Our secondary glazing is designed to help you improve the energy efficiency of your single-glazing while still maintaining the original aesthetic of the window, so you don't have to compromise on style.

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Secondary glazing white windows on Tutor house

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Frequently Asked Questions

Explore our FAQs to find answers to additional questions you may have about our products or services. If you can't find the answer you're looking for, contact us and we'll get back to you as soon as we can.

What is secondary glazing?

Secondary glazing is a method of adding an additional layer of glazing to the interior side of an existing window to improve insulation, soundproofing, and security. It is ideal for homes with single-glazed windows when replacing the windows is not an option.

Can secondary glazing be installed on any type of window?

Secondary glazing is a versatile solution and can be installed on most types of windows, including sash windows and casement windows.

How much does secondary glazing cost?

It's difficult to give an accurate estimate as every project is different. If you'd like to find out how much secondary glazing would cost in your home, please get in touch for a free, no-obligation quote. You can call us on 01752 938120 or email sales@dnawindowsolutions.co.uk.

Will secondary glazing help improve energy efficiency?

Yes, secondary glazing can enhance the energy efficiency of your home. It creates an additional insulating barrier, reducing heat loss in the winter and preventing heat gain in the summer. This can lead to lower energy bills.

Does secondary glazing affect the aesthetics of the original window?

Secondary glazing is designed to be unobtrusive and can be customised to match the existing window frame. In many cases, it is barely noticeable from the outside, preserving the original aesthetics. This makes it an ideal option for historic or listed properties.

What do our customers say?

Excellent service from start to finish

Excellent service from start to finish pricing excellent workmanship excellent and tidy nothing was too much trouble 100% satisfaction guaranteed well done DNA windows we will be back again soon

Carsten Stidson

Feb 2026

Quick and friendly service.

Quick and friendly service. DNA were the only company that could accommodate me in my search for a composite door. I have a very old cottage and I had approached other companies that were unable...
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Sarah Hillier

Feb 2026

Great communication the whole way through the process.

Great communication the whole way through the process. Friendly workmen upon arrival and made no mess at all with our windows. Highly recommend and would look to use again in the future should we need...
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Lily Mackenzie

Feb 2026

Fantastic service from start to finish.

Fantastic service from start to finish. Initial quote was straight forward. Measure choose design and options, wait for quote to be sent. Order placed and install date confirmed. Mike and Sam turned up promptly. Very...
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Stuart Reacord

March 2026

Installation happened efficiently and cleanly.

Very happy to recommend DNA Window Solutions. Dan and Adam were always quick and helpful with communication despite us needing to change our specifications a few times. The windows were manufactured quickly and appear well...
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Fiona Rynn

March 2026

Dan and the team from DNA windows have been a pleasure to deal with

Dan and the team from DNA windows have been a pleasure to deal with from the moment we walked into the show room to completion of our project.The communication has always been prompt and clear.

wendy farren

March 2026