Browse Products

Why move when you can improve? Visit our Great Amwell showroom at the Van Hage Garden Centre in Hertfordshire to see our extensive display of window, door and conservatory products.

Plan Your Visit

Experience your local double glazing show centre, right in the heart of Hertfordshire!


Disabled Access

Air Conditioned

Free Parking

Expert Advice

Child Friendly

Ventura Wildlife Park is home to a variety of animals. Make it a day trip and take the family to explore the safari.

Amwell Nature Reserve is the perfect spot to get some fresh air and take a nature walk.

Whether it's a pub lunch, thai food or fish and chips; the high street caters to everyone's favourite food.

Areas We Serve

Our home improvements show centre at the Great Amwell Van Hage Garden Centre is perfectly located for homeowners across the county of Hertfordshire. We commonly have visitors from nearby towns like Hertford, Waterford, Crouchfields, Chapmore End, Tonwell, Stevenage and Bayfordbury.


On the A1170 which runs through Amwell, our double glazing show centre is easily located. You'll find the junction just off of the A10 or A411, depending on the direction you are travelling in around Hertfordshire.

Great Amwell


  • Van Hage
  • Pepper Hill
  • Great Amwell, Hertfordshire
  • SG12 9RP

Opening Times

  • Mon-Sat 10:00 - 16:00
  • Sun 10:00 - 16:00
White uPVC Orangery with red brick walls

Bespoke home improvements for Hertfordshire homes

Although Great Amwell isn’t too far from larger towns like Stevenage, Hatfield and Barnet, it’s in the heart of the Hertfordshire countryside. It boasts scenic lakes, vast areas of green space and secluded woods making it a picture-perfect village.

Take a visit to our SEH double glazing show centre to get a feel for our products, including conservatories, replacement windows and new front doors. Our home improvement experts will be able to provide specialist expertise for our product range and provide niche advice for you and your home.

Popular products in Great Amwell

As leading installers in the local area, we’ve seen some common patterns of popular home improvement requests in the Great Amwell area. This includes casement windows, composite doors, and bespoke conservatory extensions.

Traditional style windows with authentic flush sash

Home styles in Great Amwell

The quaint village of Great Amwell has a variety of property styles, ranging from modern new-builds to heritage-listed properties and countryside cottages. That’s why our home improvement range caters to even the most niche preferences.

Rows of Edwardian era homes

Windows in Great Amwell

With such a range of properties in the local area of Great Amwell, it’s no wonder that we offer 5 window styles in 2 materials; uPVC and aluminium in our window showroom in Van Hage.

Our collection of replacement windows offers a range of customisation options. There is a plethora of colours, decorative glazing options and furniture elements to add the finishing touches to your new windows.

View our windows
Aluminium Casement Windows
Origin Bifold Door

Doors in Great Amwell

At our Great Amwell double glazing show centre you can find examples of a range of front and back door styles. Whether it be sleek bi-fold doors, elegant French doors or a modern front door, visiting the show centre is sure to inspire your home improvement project in Van Hage and Hertfordshire.

Our range of front and back replacement doors are available in uPVC, aluminium or composite. They’re custom-designed down to the finest details, so you’ll be able to choose the final touches to inject your personality into the design of your new door.

View our doors

Conservatories in Great Amwell

If you’re in need of additional living space for your Great Amwell home, a conservatory is the perfect solution. We have 8 versatile styles to choose from in 2 materials, uPVC and aluminium. As they are made-to-measure, we can incorporate either a tiled, glass or solid roof, and even a roof lantern to add a bespoke touch to your SEH glass extension.

With a wealth of experience in conservatory design and installation, we’re leading experts who you can trust. Take a visit to our Van Hage garden centre conservatory showroom to find out why we won the prestigious Conservatory & Orangery Installation of the Year Award in 2019.

View our conservatories
Green Aluminium Conservatory
Single storey extension interior view

Home extensions in Great Amwell

If a conservatory extension isn’t for you, a home extension is an excellent alternative. You’ll benefit from a new living area that can serve any purpose, including a home office, living room or dining room.

They can be designed in 2 extension materials, uPVC and aluminium, and can include any of our high-performance roofing systems and SEH windows and doors. A home extension from us will transform the way you use your home, whilst adding property value.

View our home extensions

Double glazing & comfort glass in Great Amwell

Old and non-performing glazed products are one of the top causes of heat loss. Not only does this heighten your energy bills but it will also negatively impact your property’s carbon footprint as more energy is required to warm your Hertfordshire home. With our high-performance double glazing and comfort glass products, you’ll benefit from A+ energy ratings and low U-values, meaning you could save up to £110 a year on your heating bills.

Comfort glass has risen in popularity in the Great Amwell area, especially for homeowners who live near busy roads. This is because the additional layer of glazing greatly reduces noise pollution levels. It excels in its thermal insulation too, so you could save up to £766 per year on your energy bills. For more information on which glazing type is the best solution for your home, visit our Great Amwell show centre to speak to one of our glazing experts.

View our double glazing
Yellow stone house with chartwell green uPVC casement windows

Double glazing and comfort glass window prices

At SEH BAC, we price all of our replacement double glazing products competitively. The cost of every new window, door and conservatory price is unique to each project as it is based on a number of factors, including the material, size and any additional extras.

We offer transparent double glazing prices, so you can have peace of mind that they include every step of the buying process. This includes bespoke designs, manufacturing, installation and our dedicated aftercare services. Our prices also include insurance backed 10-year guarantees, product warranties and FENSA certifications.

Double glazing prices

Get a free quote

Buying a product through SEH BAC offers you real peace of mind

Customer promise

We have the knowledge and experience to provide you with exactly what you need. Our staff are expertly trained to guide and advise you. We offer you a 10 Year Guarantee.

Read Our Customer Promise

We are one of the largest Fensa Aproved regional retail companies.

TrustMark AprovedVetted for professionalism, competency & compliancy

Our Accreditations

BSI ISO 9001:2015
BS 7412
Fensa Approved Installer
Glass and Glazing Federation
Trading Standards Institute Approved
Ultraframe Installer
The Glazing Arbitration Scheme
QA National Warranties