01
Extensions
More room, designed as part of your home.
Complete extensions planned around how your home needs to flow, feel and work—from the main build through to the internal joinery and final details.
Extensions · New builds · Conversions
Built properly.
Finished beautifully.
Extensions, new builds and garage conversions delivered with care—from the structure and layout through to the final joinery, interiors and finish.
01Complete project
thinking
02From structure
to finish
03Built around
your home
the original footprint.
ExtensionsNew buildsGarage conversionsGarden roomsKitchensBathroomsAll aspects of joinery
01
What we do
More than a finishing trade
One standard of care,
across the whole project.
Petri Joinery takes on substantial residential projects—from extensions and garage conversions to new builds, garden rooms and complete room transformations.
Our joinery background shapes every stage, so the structure, the space and the final finish are considered together rather than pieced together at the end.
02
Services
Built for real life
What can we
help you create?
Extensions, new builds and garage conversions are at the heart of what we do—bringing construction, space planning, joinery and finishing together as one considered project.
02
New builds
Complete spaces, considered from the beginning.
New-build projects where construction, layout, joinery and interior finish are planned together to create a consistent result throughout.
03
Garage conversions
Turn unused space into useful space.
Full conversions that turn underused garages into comfortable, purposeful rooms—from home offices and playrooms to guest rooms and family space.
04
Garden rooms
A beautifully useful room, just outside.
Purpose-built spaces for work, hobbies or downtime, designed to feel like a natural extension of home rather than an afterthought.
05
Kitchens
Hard-working spaces with a calm finish.
Kitchen fitting, cabinetry and finishing details brought together around storage, movement and the realities of everyday use.
06
Bathrooms
Clean lines, careful fitting, lasting detail.
Considered bathroom fit-outs with the cabinetry, boxing, panelling and finishing work handled as one coherent space.
07
All aspects of joinery
Bespoke work for every part of the home.
Doors, floors, staircases, storage, wardrobes, media walls, panelling, first fix and finishing work—made and fitted with an eye for lasting detail.
03
Selected work
Real spaces, properly finished
Work you can
see and feel.
A selection of completed Petri Joinery work—from fitted kitchens and interior details to elevated outdoor spaces designed for day and night.
Kitchen fit-out
Clean lines, fitted around the room.
Kitchen & interior
Handleless lines, finished with precision.
Balcony & exterior
A substantial outdoor space, built into the home.
Composite decking
Open views, clean lines and a careful finish.
Integrated lighting
Designed to look as good after dark.
Staircase joinery
Oak detail, carefully finished.
Built from structure to finish
One standard of care across construction, joinery, interiors and outdoor spaces.
The bigger picture
The build and the
joinery, in step.
The best rooms work as a whole. By thinking beyond the final piece of timber, we can shape spaces where construction, layout and finish all support one another.
01
Practical planningSpaces shaped around how you need them to work.
02
Joined-up detailsFinishes and features considered before they become problems.
03
A consistent finishCare and attention carried through the whole project.
04
How we work
A clear route forward
From first conversation
to final detail.
Every project is different. The process stays straightforward, with practical decisions made at the right time.
Talk
Tell us what you have in mind, what the space needs to do and where you would like our help.
Visit & measure
We look at the existing space, understand the practical details and take accurate measurements.
Plan
Scope, materials, details and the order of work are agreed before the project moves ahead.
Build & fit
The work is carried out carefully, with close attention paid to both function and finish.
Final details
Everything is checked, finished and left ready for the space to be used and enjoyed.
The Petri standard
Measured carefully.
Made properly.
Built to last.
Good work should feel right long after the tools have been packed away.
That means sensible solutions, accurate fitting, clean lines and materials chosen for the job—not just the first impression. Whether it is one door or a whole new room, the care in the finish remains the same.
- Clear, straightforward communication
- Practical thinking at every stage
- Respect for your home and your space
- Careful attention to the finishing details
Good to know
Starting a
project?
What sort of work can Petri Joinery take on?+
We take on larger residential projects including extensions, new builds and garage conversions, as well as garden rooms, kitchens, bathrooms and all aspects of joinery.
Can I get in touch if my idea is still quite rough?+
Yes. A few photos, approximate measurements and a short description are enough to start the conversation. The details can be worked through from there.
Do you take on smaller joinery jobs too?+
Yes. The scope can range from individual pieces and finishing work to complete rooms and wider building projects. Get in touch and we can discuss what is involved.
What is the easiest way to enquire?+
WhatsApp is ideal for sending photos and a quick outline. You can also call directly on 07792 274725.
Let’s talk
Have a space
in mind?
Send a few photos, some rough measurements or simply tell us what you are thinking. That is enough to get the conversation started.