Mammoth Design & Build
Home extensions, conversions and renovations across London
About Mammoth Design & Build
Mammoth Design & Build manages home projects from architectural design and planning through to construction. Its listed work includes house extensions, loft and garage conversions, new builds and full renovations. The company also handles bathroom design and installation, including en suites and wet rooms, with plumbing, electrical work, painting, tiling and flooring included in its bathroom service.
For design work, the team produces 2D plans and 3D visualisations, with a 3D scan survey offered as part of its extension process. The company offers cost estimates and budgeting, and says it can guide clients through planning permissions and building regulations. Its bathroom service includes design consultations and help selecting materials and fixtures.
Mammoth describes its projects as fully managed, with a dedicated account manager and project manager overseeing work from planning to construction. It offers a free 30-minute phone consultation and quotes. The company says its team has over 100 years of collective experience and works across London and the Home Counties. It also lists garden makeovers among the projects it takes on.
Areas covered
- Orpington
- Bromley
- Harrow
- Hounslow
- Romford
- Bexley
- Sidcup
- Bexleyheath
- Gravesend
- Eltham
- Welling
- Dagenham
Services
- Bathroom Fitters
- Bathroom Renovation
- Builders
- Electricians
- House Extensions
- Garage Conversions
- House Renovations
- Loft Conversions
- Plumbers
- Wet Rooms
Building projects
- House extensions
- Loft conversions
- Garage conversions
- New builds
- Full renovations
- Garden makeovers
Bathroom projects
- Bathroom design and installation
- Bathroom renovation
- En suite bathrooms
- Wet rooms
- Plumbing
- Electrical work
- Painting and finishing
- Tiling
- Flooring installation
Design and planning
- Architectural design
- Planning permission
- Interior and exterior design
- 3D interior design
- Project management
- Quantity surveying
What their website says about each service
- Bathroom Fitters
“Bathroom Design, Installation & Renovation Services”
- Bathroom Renovation
“Bathroom Design, Installation & Renovation Services”
- Builders
“Our expert builders offer a wide range of services to meet all your construction needs:”
- Electricians · mainly as part of larger projects
“Expert plumbing, electrical work, painting and finishing touches”
- House Extensions
“House Extension Builders ➜”
- Garage Conversions
“Garage Conversion Builders ➜”
- House Renovations
“Full Renovations: Transform your property with our comprehensive renovation services, delivering modern and functional spaces.”
- Loft Conversions
“Loft Conversion Builders ➜”
- Plumbers · mainly as part of larger projects
“Expert plumbing, electrical work, painting and finishing touches”
- Wet Rooms
“A sleek, modern alternative to traditional bathrooms, wet rooms are fully waterproofed spaces with open, walk-in showers.”
What customers say
Mammoth builders have been amazing from start till completion
Our experience with Mammoth design and build team was amazing. Delighted with the finished result.
Fantastic customer services, great attention to detail and professional - start to finish
Shared on mammoth-builds.co.uk.