# CSG Plastics & Build

> CSG Plastics & Build is a Chorley-based building and home renovation company serving Lancashire, Preston and the surrounding area. Services include home renovations and extensions, roofline products (fascias, soffits and guttering), windows and doors, and general building work.

> Last updated: 2026-09-30

## Search
- Search URL: https://www.csgplastics.com?s={query}

## Key pages and latest content
- [How Much Does a House Extension Cost in Wigan? A Straight-Talking Guide](https://www.csgplastics.com/house-extension-cost-wigan/): If you have started researching house extension costs in Wigan, you have probably noticed most answers online are vague, or quote a national average with little to do with your street or your semi. As a family run building firm based in Chorley, working across Wigan since 2010, we get asked how much will this […]
- [Do You Need Planning Permission For A House Extension?](https://www.csgplastics.com/planning-permission-house-extension/): Most single-storey rear or side extensions in the UK can be built under permitted development rights without full planning permission, provided they meet set size and height limits, but larger extensions, those on designated land, or projects that change the character of a property usually need a formal application to the local council. Working out […]
- [5 Signs Your Conservatory Roof Needs Replacing](https://www.csgplastics.com/signs-conservatory-roof-needs-replacing/): If your conservatory feels too hot in summer, too cold in winter, or has visible staining, sagging panels or persistent condensation, these are the clearest signs your conservatory roof needs replacing. Left unaddressed, these issues tend to get worse rather than better, and they often point to a roof that has reached the end of […]
- [What Do New uPVC Windows Cost in Lancashire? A Buyer's Guide](https://www.csgplastics.com/upvc-windows-cost-lancashire/): Searching for upvc windows cost Lancashire will turn up plenty of national ballpark figures, but none of them will tell you much about your own house. As a family run installer based in Chorley, fitting windows across Preston and the wider Lancashire area since 2010 with our own installers rather than subcontractors, we know the […]
- [How Much Does a House Extension Cost in Preston? A Straight-Talking Guide](https://www.csgplastics.com/house-extension-cost-preston/): If you have started researching house extension cost in Preston, you have probably noticed most answers online are vague, or quote a national average with little to do with your street or your semi. As a family run building firm based in Chorley, working across Preston since 2010, we get asked “how much will this […]
- [uPVC Windows in Bolton](https://www.csgplastics.com/windows-in-bolton/)
- [uPVC Windows in Wigan](https://www.csgplastics.com/windows-in-wigan/)
- [uPVC Windows in Preston](https://www.csgplastics.com/windows-in-preston/)
- [Roofline in Bolton](https://www.csgplastics.com/roofline-in-bolton/)
- [Roofline in Wigan](https://www.csgplastics.com/roofline-in-wigan/)


## Complete sitemap
- https://www.csgplastics.com/sitemaps.xml