Extensions & renovations
Complete home extensions, from structural carpentry and alterations through to coordinating trusted trades and final details.
Premium residential construction · Cornwall
Considered building.
Lasting quality.
Home extensions, renovations, roof structures and bespoke carpentry delivered with craftsmanship, clarity and personal attention.
Built properlyManaged personallyMade for Cornwall
Cotterill & Lloyd Construction
Craftsmanship you can see.
A process you can trust.
We deliver high-quality residential building work across Cornwall, combining skilled construction with honest communication from the first conversation to the final detail.
Whether we are creating more space, reworking an existing home or producing a one-off piece of joinery, the same standards apply: careful planning, tidy work and a finish we are proud to put our name to.
What we do
From first ideas
to final details.
One dependable team for considered residential work, with the experience to manage both structure and finish.
Conversions & alterations
From structural openings and RSJs to barn, garage and loft conversions, managed with care.
Carpentry & joinery
Bespoke timber work, fitted storage, staircases and fine finishing made around your space.
Roof structures & exterior works
We construct timber roof structures and coordinate trusted roofing specialists for coverings and weatherproof finishes.
Selected work
Built with purpose.
Finished with pride.
A selection of recent cladding, window fitting, construction and bespoke timber projects across Cornwall.
Cladding installation · Exterior finish
Millboard cladding
Window fitting · Detailed finish
Round window replacement
Timber construction · Joinery
Bespoke timber stables
Millboard cladding · Exterior finish
Contemporary cladding
The details matter
Thoughtful work,
made for your home.
The best projects feel effortless when finished. That comes from listening carefully, solving the practical details early and taking time over the things that will be seen and used every day.
Tell us what you have in mind ↗How we work
Clear from the start.
Good building work begins with good communication. We keep the process straightforward and personal.
- 01
Conversation
Tell us about your home, priorities and what you would like to achieve.
- 02
Site visit
We meet on site, understand the space and talk through practical options.
- 03
Clear proposal
You receive a clear scope and cost, with expectations agreed before work begins.
- 04
Build
We manage the work carefully, communicate throughout and finish properly.
Start a conversation
Planning something
worth building?
Tell us a little about your project and we will arrange a straightforward, no-pressure conversation.