Commercial & Trade Home Page

About ERW’s Commercial & Trade Division

With over 30 years experience, we are a Specialist Manufacturer of High Performance & Bespoke Timber windows & doors.

We also have a renovation division specialising in the renovation and upgrading of historic vertical Sliding Sash windows. We have developed a method of upgrading the thermal performance of the historic windows by including our draught sealing system and also manufacturing new Energy Saver Sliding sashes which are installed into the original box frames.

We are experienced in working in Listed Buildings and conservation areas as well as new build projects.

We are ConstructionLine accredited, CHAS certified and have great experience working with Architects, Main Contractors and directly and indirectly for the various Local authorities in our region on our region on projects ranging from £2,000 up to £300,000.

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Commercial and technical documentation

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Here you will be able to view/download and access all product technical specification documents and drawings.

Our Blog

New Contract – Working on Behalf of Walter Thompson

The transformation of a Victorian stable block into an educational centre is on track.

Repairs to the Grade II listed building will include extensive work to the roof, the creation of lecture rooms, a science laboratory, a learning resource centre, animal handling areas and a reception area.

We are delighted to announce we will be part of this Restoration project situated right on our doorstep in Middlesbrough, We won the contract to work on behalf of Walter Thompson to carry out renovation works to 110 windows and make 28 new ...

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Triple-Glazed Encapsulation: The best of both worlds

As soon as the big name national retailers start advertising something, you know it’s going to be top of mind for every consumer looking to buy. For windows this has happened most recently with triple glazing.


When all the best components are used, triple-glazing is the most efficient glazing option offered today, but often not available to a listed or conservation protected property where the look of the property could be compromised with such an addition. That is why we have developed a solution to offer customers the best ...

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Historic Vertical Sliding Sash Window Renovation Guide

Making Windows Beautiful again:

By their very nature, many traditional sliding sash windows are over 100 years old and with some dating back to the 1800s, it’s not surprising that draughts, rattles and operational issues are all too common.  We recently organised a Conservation and Heritage Workshop for local conservation officers from across the North East. During the seminar delegates were able to see first-hand the techniques that our skilled team uses to renovate and refurbish timber windows. There was in particular interest in just how bad a state of ...

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Recent Case Studies

Please register your details for access to our Commercial / Trade specification area, here you will be able To View / Download and access all product technical specification documents and drawings

Regeneration renovating Sheltered accommodation, Richmond, North Yorkshire

Energy Efficient Wood Windows & doors in Springfield Gardens, Stokesley, North Yorkshire

Bespoke Wood sliding sash windows at Mariners Cottages, South Shields, Tyne & Wear

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Visit Our Award Winning Showroom

Our award winning indoor facility showcases the entire range of products. You can browse at your leisure and see for yourself the quality of construction and finish available on our wood windows and doors. We are here to offer you help and advice on whatever type of project you are undertaking.

We also have a Technical Area dedicated to Construction Industry Professionals where we can help with specification and compliance issues.

Showroom Opening Hours:
Monday - Friday: 9:00 am - 5:00 pm
Saturday 10:00 am - 4:00 pm

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Renovation House,

Skippers Lane,

Skippers Lane Ind Est.,




United Kingdom

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