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Supply only/supply and fit, Project management, Minor to major repairs, full knowledge of listed buildings, Full RAMS, complete knowledge of Part L and Part N building regulations, £5 million public liability cover, Block management



If you are a main contractor or professional looking for a sash window company to deliver your project on time and budget, then we want to hear from you. At #KSG we have many completed contracts working collaboratively with builders, contractors, interior designers, architects, and property developers. 

Our windows and doors are manufactured to EN 14351 and our glass is manufactured to exceed BS EN 1279. Our replacement products adhere to the credentials: Secured By Design, FSC, and PAS 24. Our surveyors, whom you will have direct contact with along the process, can assist you with CAD diagrams to support planning applications.

#KSG can provide estimates quickly and efficiently

  • Attend pre-order / start meetings to agree terms and conditions with clients

  • Tendering from a prepared scope of works / drawings

  • Full tender compilation including site visit, pricing and attending tender adjudication meetings

  • Technical drawing support- section details. Bespoke details can be drawn using CAD but would be subject to charge.​

  • Full planning application consultancy to include CAD sections and heritage advice.

  • Site visit to assist a commercial partner in winning a tender- chargeable.​

  • Guide pricing to assist in preparing a tender​

  • Formulation of schedule of works programme with full preliminaries breakdown

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