Hallmark Glazed Extensions Ltd

Adding a stamp of quality to your home lifestyle!

Town House Market St, Hailsham, BN27 2AE Directions

   Now closed Open today 09:00 - 17:00

Why Choose Us?

Extensive Range
Local Business
Expert Advice

Business overview

Our premium quality bespoke orangeries, conservatories, oak extensions, and garden buildings are designed and installed for your all-year-round comfort and enjoyment.

Our premium range of bespoke orangeries, conservatories, oak extensions, garden rooms, and louvered roof pergolas are designed for all-year-round comfort and enjoyment. Let your brand-new space evoke feelings and emotions that will enhance your home well-being and lifestyle.

Adding a stamp of extra quality to your property kerb appeal and home and garden lifestyle. Creating a new living space that provides more room and gives you a natural connection with the outdoors.

The Hallmark Glazed Extensions head office is based in Hailsham, East Sussex with client projects throughout the Home Counties.

* 50+ years of design & installation experience

* Full design, planning application & build service

* Design visualisation concepts & detailed quotation proposals

* Premium quality product range

* 10 year guarantee

* HIP deposit and guarantee protection - for peace of mind!


Aluminium framed orangery kitchen extension with patio doors in Hailsham, East Sussex.
Aluminium framed orangery kitchen extension with patio doors in Hailsham, East Sussex
White framed uPVc Conservatory with french doors in Hailsham, East Sussex.
White uPVC Orangery with French Doors in Eastbourne, East Sussex
Image 5 of Hallmark Glazed Extensions Ltd
Bespoke seasoned oak framed orangery kitchen extension with roof lantern and French doors.
Hybrid orangery with aluminium window and door frames, and, uPVC roof lantern.
Dual colour seasoned oak orangery with bifold doors creating an open plan dining area that opens up onto the garden.


Bespoke Premium Orangeries
From £60,000
Bespoke Premium Conservatories
From £35,000
Bespoke Garden Rooms
From £15,000

Products & Services


kitchen extensions

home extension

garden studio

garden rooms

garden office

garden gym


Aluminium Doors

Aluminium Windows

Bifold Doors

Building Refurbishments

Building Renovations


Double Glazed Windows

Garage Conversions

Home Improvements

House Extensions

Listed Buildings

Patio Doors

Paving and Driveways

Replacement Doors

Replacement Windows

Sash Windows

Sliding Doors

UPVC Doors

UPVC Windows

Window Installation


Wooden Windows



  • Assure Certification (001655)


Great product,great experience.

We have had excellent service from our initial enquiry to the finished conservatory and the aftercare. The liaison with the builders who did the necessary groundwork and who also did a first class job was faultless. We are delighted with the conservatory and would have no hesitation in recommending Hallmark without any reservation.
Cancel Update
1000 characters limit

Great company - would recommend

Installation of 3 x window units and 1 x composite front door with full height side glazed units.
Regarding design/configuration: We ended up with different configurations of window units than we had originally requested, based on Hallmark’s recommendation. This has proved to be very beneficial, from a practical day-to-day usage perspective. We hadn’t thought of some of the issues with our original request that Hallmark pointed out during our design consultation (reaching window handles, Fan light location) and were glad to get the expert insight.

Project went to schedule and we were charged what we were quoted. Payment terms clearly laid out in the quote.

Installation team were professional and courteous. They worked through a spell of very bad weather.

Very happy with the finished result. Would recommend.
Cancel Update
1000 characters limit

Incredible orangery - light and airy

Super pleased with my orangery - I’m so glad I chose a local company as from design to build the process was incredibly smooth and the team were on hand at all stages if I had any questions. I love that Paul listened to what I wanted and came up with a solution that suited my family (and budget). We literally live in our orangery now - the space and light is it has given us is incredible. Would most certainly recommend.
Cancel Update
1000 characters limit