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Tiles /Slate



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Felt Mineral


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Call The Experts

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Services including Roof Cleaning / Sealing, Flat Roof Repairs and Renewal, Rubberbond Flat Roofing, GRP Fibreglass Flat Roofing, Complete Re-Roofs and Re-Tiling, Rooflights, Lead Work, UPVC Fascias / Soffits and Emergency Roof Repairs We offer a complete package, a one-stop service for all your roofing needs. We also cater for complete re-roofs, including a new build roof structure with engineering calculations and advice of any required planning regulations.

Approved GRP fibreglass roofing Installers

Welcome to ULTRASEAL GRP Fibreglass Flat Roofing Services. We are a specialist GRP fibreglass flat roofing company that provides quality GRP flat roofing solutions at a competitive and fair price and focuses on excellent customer care. As a professional fibreglass roofing contractor we take our business seriously.

We promise to clean up following all work to leave your property in the same condition when we leave as when we entered it. We have it all covered. The team use only the best materials and techniques to keep your roof in good shape.

We install GRP flat roofing at commercial and domestic properties. Contact us to get advice, recommendations and information or to arrange a comprehensive survey and quotation on the work to be done.

What Is GRP Flat Roofing?

Otherwise known as Glass Reinforced Plastic – GRP roofing, is more commonly known simply as fibreglass roofing, The plastic finish gets its strength from the glass fibres used in its application. A long lasting mix that seals your fibreglass flat roof  against all the weather can throw at it. Please call us for any more information.

  • Extremely strong and durable.

  • Will not crack, split or bubble.

  • Can be walked on without damage.

  • No seams or joins.

  • Maintenance free.

  • Will not sustain damage from chairs, tables, plant pots etc.

  • Moulds to complex shapes effectively.

GRPs Versatility

Weatherproof and maintenance free, GRP roofing is a very popular choice now for application on all types of flat roof including Garage Roofs, Balconies and Roof Terraces due to its durability.Available in a choice of colours it’s easy to see why GRP Fibregass is the most sought after flat roofing system.

Fibreglass Flat Roof Replacement

Do you have a leaking flat roof? or need a replacement flat roof? Then why not have one of our specialists at ULTRASEAL install a new flat roof using the latest technology in flat roofing systems. A properly laid fibreglass roof also known as GRP waterproofing System, will last for at least 30 years with no measurable deterioration.

Why choose us?

  • Roof Cleaning & Sealing

  • New Roofs & Re-Roofing

  • New Flat Roofing & Repairs

  • Pitched Roof & New pitched Roofs

  • Leadwork and Flashing

  • Beautiful traditional roofing

It’s Been A Busy Year



We would  like this opportunity of congratulating you for executing the work in such a professional and courteous manner, the installers took exceptional care and left the premises in a clean and tidy state and the quality of workmanship was to the highest standard. In this day and age it is becoming a rarity to witness good service.


I just wanted to write and thank you all at ultraseal for a job really well done (which is rare nowadays!). I’d also like to mention how pleasant and polite everyone has been – which is also unusual today. You also were extremely pleasant lads. So congratulations and thanks all round to everyone involved

Jenny SummersAldermaston

I would like to say that I have been very impressed with the service I have received from your company. From having the works estimated to having them done I have found your people friendly, courteous, punctual, knowledgeable, and efficient – and there was very little mess for me to clear up!

Terry StansfieldAbingdon

0800 084 2126

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Halfords Autocentre

The Salvation Army

The United Reform Church


Roof Repairs Service

Wind and weather cause frequent problems to roofs all over South East England, often resulting in the need for repairs.

What starts as a small leak from a loose or missing tile can eventually result in damp or rotten joists and timbers.

Re-Roofing Services 

Nothing lasts forever, even when it’s been really well maintained, and roofs are no exception.

ULTRASEAL Roofing Services in South East England specialise in re-roofing using top quality materials and systems.

Flat Roofing Services 

ULTRASEAL Flat Roofing , professional installers of EPDM Rubber Roofing, GRP and Fibregalss Roofing systems, flat roof systems that have the potential to outlast your building.

20-25 year guarantees available.

Roof Cleaning & Sealing

ULTRASEAL are Berkshires market leaders for roof cleaning, moss clear, roof sealing and roof coating products and services.Our roof cleaners are based in Berkshire so you can have the peace of mind that you are always dealing with a local company.

Repointing, Leadwork 

Part of our leadwork roofing service includes chimney releading, repointing and rebuilding. Lead materials are durable and if installed properly, can last for decades.

Contact us today for a FREE quotation.

Guttering Facias and Soffits

Gutters, fascias and soffits and barge boards play a vital role in keeping the roofline intact and your South East England home weatherproofed.
ULTRASEAL have the knowledge and expertise to keep your home safe and dry.