Builders in Essex for extensions, conversions and structural work
Need more space without moving? We plan and build extensions, garage conversions and open-plan alterations, with every trade handled by our own team.
More space, one team, no chasing contractors
With moving costs high, more homeowners are choosing to improve rather than move. A single-storey rear extension, a converted garage or a knock-through to an open-plan kitchen-diner can change how a whole house works. The hard part is managing everything around the build: drawings, approvals, structural calculations and the trades that follow.
We handle that for you. We can connect you with trusted architects and structural engineers for plans and planning permission, we deal with building control, and our in-house team covers the groundwork through to the electrics, plumbing, carpentry, plastering and decorating. One firm stays responsible from start to finish.
Recent work includes a bespoke mezzanine level, large picture window and external cladding at a property in Holt, Norfolk, where our team managed all of the structural, electrical and finishing works. See it on our projects page, and read our guide to extension ideas and planning permission.
Building works we carry out
Typical projects include:
- Single-storey rear and side extensions
- Garage conversions
- Loft conversions
- Knock-throughs and open-plan alterations
- Structural alterations
- Internal remodelling
- Building control liaison
- Architect and structural engineer introductions
- Electrics, plumbing and heating for new spaces
- Plastering, finishing and decorating
How a building project works
01
Site visit
We look at the property, talk through what you want and flag anything that needs permission.
02
Plans and approvals
We can connect you with architects and structural engineers, and we handle building control.
03
Build
Our team carries out the structural work, then electrics, plumbing, carpentry and plastering.
04
Finish and handover
Decorating, final checks and a clean site, with the paperwork you need.
Why homeowners choose Phoenix B&K
Read what our customers say or see recent projects.
All trades in-house
Plumbing, electrics, carpentry, plastering, tiling and decorating are handled by our own team, so there are no separate contractors to chase.
NICEIC-approved electricians
Electrical work is carried out and certificated by our own NICEIC-approved electricians.
Free, written quotes
We visit, measure up and give you a clear written quote. No pressure and no hidden extras.
Local to Essex and Suffolk
Based in Tolleshunt D’Arcy near Maldon, working across Essex and Suffolk.
Building works across Essex and Suffolk
We take on extensions and building projects across Essex and Suffolk, including:
Building works FAQs
Do I need planning permission for an extension?
Many single-storey rear extensions can be built under permitted development, but limits apply and some homes are excluded. Always check with your council or the Planning Portal first. Our extensions guide explains the main rules.
Do extensions need Building Regulations approval?
Almost always, whether or not you need planning permission. We deal with building control as part of the project.
Can you provide the drawings?
We work with trusted architects and structural engineers who can produce plans and help with planning applications, and we coordinate with them throughout.
Can we stay in the house during the work?
Usually, yes. Most of the work happens outside until the final knock-through, and we plan the job to keep disruption down.
Building and extension guides
Building & Extensions
Extension ideas for Essex homes: what’s possible and what needs permission
Planning a new project?
We’ll visit, measure up and give you a clear written quote. No pressure and no hidden extras.