Home Improvements from Super Seal…

…windows, doors & conservatories

Super Seal was established in 1985. We supply and install high quality replacement windows and doors, double glazing, conservatories, car ports, facia and guttering home improvements throughout Cambridgeshire, Norfolk and Lincolnshire.

We are ideally placed to provide a first rate home improvements services within these counties and have many satisfied customers in Wisbech, March, Chatteris, Kings Lynn, Downham Market, Ely, Spalding and surrounding villages.

In 2025, we are proud to celebrate 40 years of trading – a milestone that reflects our commitment to quality, reliability, and service in the double glazing industry.

Since opening our doors in 1985, Super Seal has grown into a trusted name for high-quality windows and doors, known for our attention to detail, personalised service, and long-lasting products. As a FENSA-registered installer, we’ve built our reputation on doing things the right way – with integrity, craftsmanship, and care for every home we work on.

Windows

All our windows are fully double glazed, have multi-point locking and are offered in White, Cream, Chartwell Green, Anthracite Grey, Agate Grey, Light Oak and Rosewood. Sash type windows are also available on special order. All our windows and doors come with our full 10 years insurance backed guarantee and have the benefit of thermally efficient Pilkington energiKareTM glass and FENSA certificate where applicable.

Doors

Entrance doors are an important, individual element to every refurbishment and Super Seal offer clients every opportunity for their property to be ‘unique’ by providing an extensive choice of styles, designs and colours, all superbly manufactured to stand the test of time. With over 300 different door panel styles available in White, Cream, Chartwell Green, Anthracite Grey, Agate Grey, Light Oak or woodgrain and over 150 coloured composite door options to choose from, we are convinced we have the door for you.

Conservatories

All our conservatories are constructed by our dedicated teams of ground workers and window installers. From quotation through to survey and final install we keep our customers fully informed. At Super Seal we offer a full installation service, including electrics and Air Conditioning if required.

There are many types of glazing materials used in the roofing of our conservatories, different thicknesses of Polycarbonate, different colours and many types of glass, including Low Emissivity, Laminated and Self Cleaning Insulated Glass. Whatever you wish to use your conservatory for, Super Seal will give you “best advice” and the benefit of their vast experience.

Roofline Products

In this age of low maintenance, Super Seal offer a full range of replacement PVCu Fascia, Soffit and Guttering in various colours at very competitive prices.