LONGROCK WINDOW COMPANY based in penzance, cornwall

Specialising in Double Glazed Windows, Doors and Conservatories.

Windows created from the Fully Sculptured System not only look superb, but also enhance a home’s warmth, security and value. Requiring minimal maintenance, the FS System is also designed to include Secured by Design (SBD) features, enabling an enhanced security specification.

We provide UPVc Windows, Doors and Conservatories as well as Aluminium Windows.

The Ultrasky Flat Skylight

This amazing skylight provides style to extension and orangery roofs and floods natural light into previously dark and gloomy rooms.
Download the brochure here
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We are here to help from the initial design process all the way to installation.


We have a proven track record of getting our jobs done in the quickest time possible without compromising on quality.


We have a selection off roof choices for any conservatory installation. Please give us a call if you want to know more.


The windows we install are all A Rated as standard and come in a choice of colours and designs.


We can supply and fit, or just supply, all types of patio and residential doors in a choice of colours with high security locking mechanisms.

“What people are saying about Longrock Windows

Longrock Windows listened to our ideas, determined our style tastes and came up with a complete solution which included a brand new porch and double glazing throughout our home

Rob Martin / St Ives, Cornwall

We had a crack in our window for such a long time and I finally got around to getting it fixed. Longrock windows offered the best quote on the market.

Brad Atherton / Helston, Cornwall

We hired Longrock Window Company Ltd to install and design our new conservatory.The team were excellent from day one and we couldn’t be happier with the results.

Micheal Thomas / Penzance, Cornwall

Ready to take it a step further?…
Let’s start talking about your project or idea and find out how we can help you.