High quality windows, doors and conservatories in Fareham, Hampshire and the South Coast

Novaseal is a manufacturer of a wide range of quality home improvement products, supplying these to reputable installers as well as consumers for DIY projects around the Hampshire area.

Our energy efficient uPVC windows and doors are manufactured using the Deceuninck 2500 profile and can help upgrade the thermal performance of your home, saving you money on your energy bills in the long term. Alternatively our AluK aluminium range offers an unrivalled sleek design which is ideal for modern properties.

Create extra space in your home with one of our conservatories or orangeries, installed with high-performance glass that has superior insulation properties to reduce heat loss in the winter and incoming heat in the summer, for living space you can use all year round.

We also offer uPVC building products including roofline and cladding

Novaseal operates on the principles of great service, reliability, quality products and a fair price. There are a wide range of product options to choose from, so you’re sure to find the right style for you.

Our site will provide you with more information on the features and benefits of our products and give you an idea of how they look once installed. It also highlights the different colour and hardware options available to you to add the finishing touches to your new windows and doors.

Why choose Novaseal

Novaseal, a leading Hampshire based fabricator and installer, has enjoyed steady growth since its start in 1998. From a single trade counter outlet, Novaseal has grown to have two trade counters and three manufacturing facilities – and there is more growth planned. Managing Director Gary Grundy at Novaseal, explains: “We continue to diversify, people come to us for answers, which leads us to new products and new solutions. The majority of our business comes from recommendations or repeat sales.

Our customers trust us to work out the best product, design and material to suit their requirements.” “It’s the secret of our success, we provide what the customer wants rather than what we want to sell them. We like to think there’s always an answer to any problem and we know our suppliers operate in the same way. When it comes to changes in legislation, and there have been a good few, our profile suppliers have been one step ahead. Ready to help us meet whatever the latest requirement is. Whether it’s CE Marking, energy ratings or any other set of rules we need to comply with, we have their support.

Novaseal, an ISO 9001 registered company and Which Trusted Trader is planning its next phase. Within 2 years it plans to have all manufacturing in one building, together with new offices. Existing trade counters will be expanded and locations found for new ones. Gary Grundy explains “We’ve got great plans for expansion, built on a solid foundation of existing customers. The design side is taking off, offering us great opportunities for creative development. Our customers will be right there beside us to maximise the opportunities.”


Buy with confidence knowing all Novaseal products are manufactured to the highest standard, giving you quality new windows and doors which are built to last. We have achieved the BSI Quality Management System 9001:2008. We are also a Certass registered company. When you have glazing installed by us, you can be sure all current building regulations are adhered to and work will be carried out to a very high standard of workmanship. Other benefits include deposit protection and a 10 year guarantee to give you peace of mind.

Where we cannot resolve any complaints using our own complaints procedure, as a Which? Trusted trader we use Dispute Resolution Ombudsman for dispute resolution. In the unlikely event of a complaint arising and you wish to refer the complaint to them please contact Which? Trusted traders in the first instance on 0117 981 2929.