Extra £100 off any new order placed when you book a showroom appointment

Extra £100 off any new order when you book an appointment

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Give your Southend-on-Sea home a new lease of life, with a visit to our double glazing Essex showroom situated in Alton Garden Centre.

Windows for Southend-on-sea

Windows for Southend-on-sea

Explore our fantastic range of double glazing and comfort glass windows. Choose warm and secure windows in uPVC or aluminium frames.

Windows for Southend-on-sea

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Doors Southend on Sea

Doors Southend on Sea

Stylish, secure and energy efficient doors – whether you’re looking for a new front door, or a set of glass patio or bi-fold doors.

Doors Southend on Sea

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Conservatories for Southend

Conservatories for Southend

Design your dream conservatory with the help of one of our designers, with your choice or windows and doors, and a glass or tiled roof.

Conservatories for Southend

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Orangeries Southend-on-Sea

Orangeries Southend-on-Sea

Transform Your Southend-on-Sea Home with Elegant Orangeries: Premium Home Extension Installations

Orangeries Southend-on-Sea

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Front Doors Southend on Sea

Front Doors Southend on Sea

Make an entrance every time you enter your home with one of our stylish front doors.

Front Doors Southend on Sea

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Heritage Windows Southend on Sea

Heritage Windows Southend on Sea

Combining the beauty of timber with the benefits of uPVC, these timber alternative windows are a perfect option for listed and traditional homes.

Heritage Windows Southend on Sea

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Home Extension Southend on Sea

Home Extension Southend on Sea

If you’ve outgrown your home’s existing living areas and a conservatory isn’t the right fit for your home, we also offer made-to-measure home extensio

Home Extension Southend on Sea

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Casement Windows Southend-on-Sea

Casement Windows Southend-on-Sea

An ever popular and classic choice, these windows allow easy operation and suit any home.

Casement Windows Southend-on-Sea

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Inspiration for Your Southend-on-Sea Home

Before planning your visit, why not embark on a virtual tour of our stunning Southend-on-Sea showroom? Take a virtual walk through our expansive displays and get a close-up look at our diverse products. Whether you're envisioning a brand-new conservatory, seeking the perfect windows for your dream extension, or simply drawn to the latest home improvement trends, our virtual tour offers a convenient and immersive way to explore your options.

Book a Showroom Appointment

Plan Your Visit

There’s so much to see and do at Alton Garden Centre, why not make a day of it?

Showroom Facilities


Disabled Access

Air Conditioned

Free Parking

Expert Advice

Child Friendly

Local Amenities

Need a break? Based on-site, visit Digbys Restaurant for breakfast, lunch or afternoon tea.

Alton Garden Centre has everything for your garden needs, from plants to machinery and furniture to gifts.

For all your favourite brands, Mayflower Shopping Park is a short 10-minute drive away from Alton Garden Centre.

Areas We Serve

Ideally positioned for green-fingered south Essex residents, accommodating homeowners in Southend-on-Sea, Canvey Island, South Woodham Ferrers, Burnham-on-Crouch and Southminster, our Southend-on-Sea double glazing showroom can be found in Alton Garden Centre.


Just 30 miles east of London, find Essex’s largest garden centre on the A127. Plenty of parking is available, including multiple disabled parking spaces.


Alton Garden Centre

Arterial Road



SS12 9JG

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Popular products in Southend-on-Sea

In-depth local customer research shows us that heritage windows and doors and aluminium patio doors and orangeries are particularly popular home improvements amongst the Southend-on-Sea community and the surrounding areas.

Integral blinds added to a new orangery

Home styles in Southend-on-Sea

With a vast range of bespoke opportunities on offer, we are highly skilled at enhancing any type of property you can think of. From quiet cul-de-sac retirement properties to stylish new build semis and archetypal Victorian houses to traditional bungalows, we can accommodate your needs.

A Black Composite Door
  • Windows
  • Doors
  • Conservatories
  • Orangeries
  • Glazing
  • Prices
  • Windows

    Windows in Southend-on-Sea

    As outlined above, Southend-on-Sea in Essex holds a variety of property types, which is why SEHBAC offers 5 window styles created from 2 high performance materials; premium aluminium and efficient uPVC.

    With a wide range of property types and styles here, uPVC bay windows and bespoke aluminium windows are just some of Southend-on-Sea’s favourite choices to restore their home’s unique character and style

    Read more about our Windows
    Interior view of a uPVC window with traditional heritage handles


    Doors in Southend-on-Sea

    Our Southend-on-Sea customers always comment on the outstanding product choice that we provide at SEHBAC, including our range of SEH front and back doors. Available in superior aluminium, charming composite and durable uPVC, we have 6 door styles to browse through.

    Whether you’re looking for a conservation-friendly front door or an on-trend bi-folding door, heightened security, safety and energy efficiency is guaranteed with an SEHBAC installation in Essex.

    Read more about our Doors
    Light oak effect uPVC sliding patio door


    Conservatories in Southend-on-Sea

    Designing and building many charismatic conservatories in this Essex area over the years, we pride ourselves on the knowledge that we hold on local planning permissions and building regulations. Choose from 8 enlightening new conservatory styles, available in 2 material choices; uPVC and aluminium. Our range of insulating conservatory roofing options are also impressive; tiledglasssolid and lantern roofs, as well as rejuvenating conservatory roof replacements.

    As the prestigious winners of the first Conservatory & Orangery Installation of the Year Award (2019), the quality of our workmanship speaks for itself for our projects across Essex.

    Read more about our Conservatories Southend-on-Sea
    Grey tiled conservatory roof


    Orangeries in Southend-on-Sea

    Our Southend-on-Sea double glazing show centre holds many stunning examples of the gorgeous orangeries we build week in, week out. Adding considerable value and style to any home that they’re applied to, choose between practical uPVC or enviable aluminium frames for your glazed SEH orangery.

    The Alton Garden Centre show centre also houses a variety of illuminating orangery roofing systems, to explore at your leisure.

    Read more about our Conservatories
    White hardwood aluminium orangery


    Double glazing in Southend-on-Sea

    We have transformed many Southend-on-Sea homes with our highly efficient SEH double glazing and conservation-compliant secondary glazing, which has notably reduced a plethora of household energy bills over the years.

    Our EcoMAX Glass™️ comes as standard. One of the most sustainable and eco-friendly glass unit on the market, it easily matches any A or A+ rated unit for insulation and has comparable solar control properties. For noisy and busy areas of Essex, as well as homes looking to reduce energy bills even further, Comfort Glass is a great option. And with a fantastic range of home improvement finance packages to choose from, SEH BAC products are a viable possibility for a wide range of budgets and lifestyles.

    Read more about our Double Glazing
    Bespoke made curved arch window in uPVC


    Double glazing window prices in Southend-on-Sea

    Our windows, doors and conservatories are competitively priced for Essex homeowners. The double glazing cost will be tailored to your individual requirements as it is influenced by a number of factors, including the size of the project, product materials and optional extras.

    As a highly reputable home improvements company in Essex, our double glazing prices are transparent. Across our simple buying process, from the bespoke design to our aftercare services, you won't experience any hidden costs. Our windows, doors and conservatories come with 10-year guarantees, product warranties and FENSA certifications and accreditations, for greater peace of mind.

    Partially open aluminium windows with chrome handles

    Begin Your Project

    Get your free quote – with no-obligation to buy. Simply fill in the online contact 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.


      Get inspired with our product brochures

      Ready to make your dream home a reality but don’t know where to start? Find all the inspiration you need.

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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

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      regional retail companies

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      Trustmark logo

      Vetted for professionalism, competency & compliancy

      Our Accreditations

      FENSA Approved
      TSI Approved Code
      Ultra Installer
      QA National Warranties