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Energy Efficient Double Glazing EcoMAX Glass™ for homes in Suffolk and Essex

As a responsible, forward-thinking company we take sustainability and the environment very seriously. And that’s why we are offering EcoMAX Glass™ as standard on all standard uPVC and aluminium products.

EcoMAX Glass™ is the most sustainable and eco-friendly glass unit on the market, using more recycled materials than any other glass unit in the UK. Engineered from organic materials wherever possible, EcoMAX units are almost fully biodegradable.

To continue our drive to save the planet, for every installation of EcoMAX Glass™ a tree will be planted, reducing omissions by one ton of co2 for every tree planted.

So, you can get the home improvements you want while being safe in the knowledge you are helping protect the environment.

Available in every window style; windows that are double glazed offer high performance as well as giving you an attractive window. It will be an asset to your Essex or South East home. You can choose from double glazed casement windowsbay windows or bespoke windows in high-performance uPVC and aluminium.

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    Oak effect Residence 9 window interior

    Market Leading Performance

    An Argon-filled cavity and warm edge spacer bar technology helps the window perform on par with market-leading A-rated windows.

    Environmentally Friendly

    Sealant is made using Sunflower Oil, meaning it will decompose, unlike conventional sealants.

    Greener Glass

    A new, friendly range of economical glass.

    What is EcoMAX Glass™?

    EcoMAX Glass™ is the greenest glass unit in the UK, featuring 40% recycled glass content compared to the average of 25%. Engineered from organic materials wherever possible, EcoMAX units are almost fully biodegradable.

    EcoMAX Glass™ matches any A or A+ rated unit for insulation and has comparable solar control properties and is EN1279, EN12600 certified. Glass is close-loop recycled, getting it ready for the next lot of EcoMAX Glass™

    Why choose EcoMAX Glass™ ?

    Sustainably sourced

    Fully commited to sustainability, EcoMAX Glass™ is the most sustainable glass unit available in the UK (to date).

    Enhanced security

    Made using two durable glazing panels, our double glazing will notably boost your home's security.

    Ground-breaking, energy saving design

    Designed to reduce the amount of heat lost to the elements, our double glazing attains A energy ratings with ease.

    Maximises natural heat & light

    By maximising solar gain and light transmission, the need for heating and lighting is reduced.

    10-year warranty

    Ensuring all our products are of the very best quality, you can count on your new double glazing to last.

    Energy efficient double glazing in Essex, Suffolk and Surrey

    Our popular double glazing can attain A+ energy ratings. A+ is the top efficiency grade possible, it also achieves superior U-values. So, updating your existing windows to EcoMAX™ double glazed windows is a sure way to enhance your home’s insulation.

    Its sophisticated design incorporates a range of advanced elements that work together with the robust window features. This includes warm edge spacer bars and beaded window frames. Providing excellent efficient performance, regardless of the style you opt for.

    Double glazing can be incorporated into our range of windows, and doors  You can be assured that they’ll reduce your home’s carbon footprint. You should also notice that condensation is significantly reduced when you replace single glazing for modern double glazing.

    You’ll instantly note the difference in your home as you enjoy a comfortable temperature. The inside will be warm all year round, no matter the weather outside.

    Double glazing lasts at least 20 years, with our high-quality materials and installation meaning it could even surpass 35 years. In this time, you could benefit from a total saving of £2,200. The savings you make from your double glazing pay for the home improvements cost in the long run.

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    Cream Residence 9 window interior

    Secure your South East home with high-performance double-glazed windows

    Double glazing is manufactured using two toughened glazing panels. It provides a robust design that will significantly boost your home’s security. When exposed to harsh forces, they’ll stay intact.

    Our range of double-glazed windows has been rigorously tested to strict industry standards. This gives them the ability to keep your home safe and secure. Not only are they highly secure, but their resilient design also offers excellent weather resistance. It’s able to withstand strong winds, rains and cold climates without weakening in performance.

    Our collection of double-glazed replacement windows includes several advanced security features as standard. Including multipoint locking systems that bolt the frame to the window at several points, increasing their resilience. For homeowners looking for greater security, we can incorporate extra security elements for peace of mind.

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    Benefit from better noise reduction with replacement double glazing products

    Getting replacement double glazed windows installed means that they will significantly reduce external noises from entering your home. Once you’ve got your new windows installed, you’ll be able to enjoy a much more relaxing and quieter home. This is ideal if you live by a busy road or neighbourhood. Soon you’ll be enjoying a much better night’s sleep as well as a warmer home.

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    Large grey aluminium casement window
    Interior grey aluminium bay window

    Modern double-glazed window styles and designs

    Our advanced EcoMAX™ double-glazing benefits from a streamlined manufacturing processes. We can incorporate it into a plethora of window styles. From double glazed sash windows for British cottages to sleek replacement tilt and turn windows, to custom-shaped windows. We can cater to any personal taste!

    You can decide between our two window materials, uPVC and aluminium depending on your individual preferences. We also offer over 150 RAL colours and a variety of authentic woodgrain effects for a more heritage aesthetic. Our incorporated double glazing will be sure to improve your home’s performance.

    We can also fit our double-glazing units into other products. This includes double glazed front doors, a thermally insulating modern conservatory or sleek double glazed bifold doors.

    Comfort glass windows combine two highly efficient glazing panels with a built-in laminate layer and a special transparent Low-E coating that stops 56% more internal heat from escaping.

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    Your Window and Door Journey with SEH BAC

    Replacing your windows and doors is easy.


    Choose the right windows and doors

    Fill out a form online or visit one of our 11 showrooms to see our range of high-quality windows and doors up close and speak to our expert team for any advice on materials, styles, colours, energy efficiency and glazing. Once you are happy with your choice, we’ll provide you with a free no-obligation quote.


    Place your order with us

    When you want to go ahead with your order, the details have been approved, and we have received your order deposit, our administration team will provide your contract to a surveyor.


    Your surveyor assessment

    The surveyor will contact you to arrange a date that is convenient to come to your home and review the project scope, take accurate measurements and discuss any other matters that need to be considered. We will then confirm the surveyor’s assessment.


    Confirm an installation date

    Our installation department will contact you to arrange a date for your window and/or door installation and your products will be ordered and manufactured, using cutting-edge techniques and industry-leading materials.


    You're ready for your installation

    On the day, our skilled team will arrive at the agreed time to install your products, ensuring minimal disruption. They’ll explain the locking and opening systems and share maintenance tips to keep your products looking brand new. Once your installation is complete, we will contact you to confirm that everything has been finished.

    Frequently Asked Questions

    Find all the answers to our most frequently asked questions below.

    What is A rated double glazing?

    Energy efficient home improvements are incredibly important, so if you're wondering how to tell what A rated glazing is you're not alone! Read more

    How do you replace windows in an old house?

    Run-down window frames can have a real impact on a property's thermal efficiency. Affecting old Victorian and Edwardian homes in particular, many homeowners are led to believe replacing windows in old houses is incredibly difficult - but it needn't be. Read more

    How do I know if my windows need replacing?

    Modern double glazing lasts at least 20 years, but there are certain tell-tale signs you need to look out for. Read more

    Begin Your Project

    Get your free quote – with no-obligation to buy. Simply fill in the form below to get started:

      By submitting your details you confirm that you agree to the storing and processing of your personal data by SEH BAC as described in the privacy statement.


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      Multi-award winning company

      Here at SEH BAC, we’re proud to have won many prestigious awards for our products as well as our work in the community:

      Installer awards 2022
      G21 Finalist
      SEHBAC showroom winner
      Ultraframe designer winner
      Conservatory and orangery awards winner 2019
      NHIC 2018 Consumer confidence award
      G17 Installer of the year
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      We’re one of the largest

      regional retail companies

      Vetted for professionalism, competency & compliancy

      Improving South East homes for more than 50 years

      With 9 show centres across the South East, you’re not far away from achieving your dream home:

      See all of our show centres

      Our Accreditations

      BSI ISO 9001:2015
      BS 7412
      FENSA Approved
      TSI Approved Code
      Ultra Installer
      QA National Warranties