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Capitol Building Contractors are an experienced Westhoughton based multi skilled building contractor. We undertake extensions, new builds, refurbishments, loft conversions, alterations, renovations, as well as small jobs for the home owner.

Our services include the following:


Single storey, double storey and wrap around extensions from the experts. We will manage your building project from start to completion.


Internal alterations

From knocking through & removing load bearing walls, new kitchen installations or a new bathroom your project is in safe hands.


Garage conversions

Garage conversions are the most cost effective way of expanding your living space and increasing the value of your home. Whether you’re looking for another Bedroom for the kids, a Home Office for the adults or a Games Room for the whole family, we provide the complete service from Initial Design Ideas to Complete Installation.


Loft Conversions

Dormers, hip to gable and room in a roof loft conversions. We supply and fit Velux roof Windows and sun tunnels.


Windows and Doors

We supply and fit windows and doors, French doors, bi-fold doors, interior & exterior doors.



External landscaping, Indian stone and decorative paving work undertaken including repairs and pointing. We also build garden walls and fences.