Are your new windows triple glazed uPVC Windows, TimberLOOK Windows or REALTimber Windows?

All our windows are triple glazed and A Rated as standard.

If you're a DIY'er or a builder, we can still supply double glazed c rated windows.

Triple Glazed uPVC Windows

Triple glazing wasn't an “after thought” with our eco energy plus window - it was designed with this in mind.

Triple Glazed uPVC Windows

Our Mega Hinge

If the additional weight of triple glazing concerns you, the optional upgrade to a Mega Hinge will put your mind at rest.

Our Mega Hinge


 Quiet Secure Windows

TimberLOOK Windows

timber alternative windows

TimberLOOK Windows

TimberLOOK Windows are a new range of timber alternative windows.

Manufactured from low maintenance PVCu with a grained wood effect finish.

Although aimed primarily at the heritage market, this window would not look out of place in any building due to its classic lines and beautiful finish.

A combination of classic styling and modern materials makes this window ideal for timber replacement in conservation areas.

Timber Alternative Windows

REALTimber Windows

Our joinery is a specialist manufacturer and supplier of timber-based windows, entrance doors, conservatories, orangeries and bespoke joinery such as staircases.

We carefully evaluate each job to see if it’s best suited for products from our own ranges of windows or carefully selected partners where we have sourced what we believe to be the best products from some of the best manufacturers around the world.

Our REALTimber Windows range includes:

- Flush Casement Windows
- Storm Proof Windows
- Box Sash Windows
- Tilt & Turn
- Tilt & Wash Windows
- Alu-clad Windows.

REALTimber Windows


Contact us today and ask about our windows...01323 488700


  • Coastline Windows
  • Unit 14,Chaucer Industrial Estate
  • Polegate, East Sussex
  • BN26 6JF
  • Tel: 01323 488700
  • Fax: 01323 487111


Coastline are professional suppliers of windows, doors and conservatories in Sussex and the South East. We pride ourselves in the quality of our service and product while retaining a competitive pricing policy.

We have one of the widest ranges of Double Glazing in Sussex, providing our customers with a huge selection of options for conservatories, porches, doors and windows in Sussex.

We appreciate that home improvements can be a big step, which is why Coastline believe in ensuring every one of our customers gets the friendly, professional and personal attention that they need to be confident that they are choosing the right products and service for their property.

Contact Coastline today for a no obligation consultation about your plans and find out how we can help with all requirements for conservatories, porches, windows and doors in Sussex.

Click here to send us details of your requirements...


"Efficient, courteous and do a great job...."

All in all a very professional company indeed.

Mr and Mrs S, Eastbourne, East Sussex