Crowthorne, Berkshire · RG45 and neighbouring GU postcodes
Builders in CrowthorneExtensions, garden rooms and lofts
Generous plots and mature trees make Crowthorne good for extending, provided foundations are designed for the ground and the roots that are actually there.
Free site visit and ballpark figure · fixed price agreed before work starts · insurance-backed guarantee
01 Experienced trade team of around five
02 Fixed price agreed before work starts
03 Itemised quote within 21 days
04 Public liability & contractors insurance
05 Insurance-backed guarantee
Local to Crowthorne
Building and renovation in Crowthorne
Crowthorne's housing is dominated by substantial inter-war and post-war detached and semi-detached homes on generous, often wooded plots, with Victorian and Edwardian property near the village centre and newer developments at the edges.
Space is the local advantage. There is usually room to extend to the rear or side, put a proper insulated garden room at the bottom of the garden, or widen a driveway without losing the front garden entirely. The constraint is what is under and around that space: sandy heathland subsoil, mature pines and oaks, and existing drainage that was laid when the plots were first developed.
It is a short drive from Farnborough, so we survey, price the whole job, and run it with the same small team rather than handing it to a crew who never saw the trial hole.
Crowthorne is a short drive from Farnborough across the county border, and a village where large plots make extensions and garden rooms popular.
What Crowthorne homeowners ask us for most
- Insulated garden rooms used as offices and gyms
- Single and double-storey rear extensions on detached housing
- Dormer loft conversions
- Driveways, patios and retaining landscaping on large plots
- Groundworks and drainage upgrades on older estate housing
Covering RG45 and neighbouring GU postcodes.
Office: 19 Queens Court, Farnborough, GU14 6BT · Mon-Sat · 08:00-18:00
Services in Crowthorne
Building services available in Crowthorne
Structure, groundworks, drainage and finish are all handled in-house, so a single team carries your project from the first excavation through to the final finish.
Extensions in Crowthorne
More usable ground-floor space in the home you already own, priced before we start, built by one experienced crew, and handed back with building control sign-off and an insurance-backed guarantee.
House Refurbishments in Crowthorne
One contractor for the strip-out, the structure, the services and the finish, priced in full before we start, sequenced so trades are not tripping over each other, and guaranteed when it is done.
Garden Rooms in Crowthorne
A properly built room at the end of the garden, insulated, powered, heated and usable in February, for a fraction of the disruption of extending the house.
Loft Conversions in Crowthorne
A bedroom, bathroom or office in space you already own and already heat, with the structure, stair and escape route designed to pass building control rather than to look finished.
Garage Conversions in Crowthorne
The walls and roof are already there, which makes a garage the fastest extra room in most houses, provided the floor, damp and insulation are done properly rather than boarded over.
Hard Landscaping in Crowthorne
Outdoor surfaces that stay flat, drain where they should and still look right in ten years, because the sub-base, falls and edge restraints are built correctly under the part you can see.
Groundworks in Crowthorne
The part of the build nobody sees and everything else depends on, excavated to the right depth for the ground you actually have, inspected before it is covered, and priced before we dig.
Drains in Crowthorne
Drainage that is set to the right fall, tested before it is covered and recorded on the completion paperwork, whether it is a diversion under a new extension or a failed run being replaced.
Structural Alterations in Crowthorne
Walls removed and openings formed the way an engineer designed them: temporary support first, load path carried all the way to the ground, and inspected before it disappears behind plaster.
RSJ Installation in Crowthorne
The beam is the easy part. Getting the calculation, the temporary support, the bearings and the load transfer right is what keeps the structure above it exactly where it was.
Property types
Property types across Crowthorne
Inter-war and post-war detached houses
Deep plots and good roof pitches. Rear extensions, dormer lofts and garage conversions all work well, with drainage diversions frequently needed.
Victorian and Edwardian village property
Solid walls and shallow original footings. Extensions need deeper new foundations alongside the existing shallow ones, priced properly.
Modern estate housing
Trussed roofs and tighter boundaries. Structural loft work and garden rooms usually give more usable space than a small extension.
Large wooded plots
Root protection and foundation design dominate. Where trees stay, the foundation solution changes rather than the tree coming down.
Why choose Urban Build in Crowthorne
How we work in Crowthorne
A team you can name
A core team of around five experienced tradespeople, with trusted subcontractors only where a job needs them. The person who surveys your Crowthorne property is part of the team that builds it.
Fixed price before we start
The price is agreed before work begins. It changes only if you ask us to change the scope, not because something predictable was left out of the quote.
Itemised quote in 21 days
A full itemised quote, typically around ten pages for an extension, costs £500 and arrives within 21 days. That £500 is deducted from the final price if the job goes ahead.
Insured work
Public liability and contractors insurance are in place on every project we run.
Insurance-backed guarantee
Completed work is covered by an insurance-backed guarantee, so the cover does not depend on us still being around.
Staged payments
Payments are tied to progress on site. You are never funding a Crowthorne project months ahead of the work.
We do not publish job counts or years-in-business figures we cannot evidence. If you want to see work, ask and we will talk you through comparable projects: see our work.
Local conditions
Common building considerations in Crowthorne
These are the details a thorough survey settles before a price is agreed. We survey for all of them before we price.
Tree roots near new foundations
Mature pines and oaks affect both foundation depth and design. Building near them without accounting for root activity and soil moisture change is how new extensions crack.
Sandy subsoil that collapses when dug
Heathland sand can carry load well and still be unstable in an open trench. Support and dig sequencing are a pricing factor, not an afterthought.
Surface water on flat, sealed plots
Wide driveways and large patios generate run-off. Permeable build-ups or designed soakaways keep it away from the house instead of adding to a drainage problem.
Original estate drainage
Runs laid decades ago often have shallow falls and previous repairs. Where new work sits over them, they get surveyed and corrected first.
How a Crowthorne project runs
Our process, from first call to handover
Call and first conversation
You tell us what you want to change and roughly when. We say straight away whether it is work we take on and how our diary looks.
Site visit and survey
We look at the structure, the ground, the drainage and the access, and give you a free ballpark figure so you know whether the project is realistic.
Itemised quote within 21 days
A full itemised quote costs £500, around ten pages for an extension, and that £500 is deducted from the final price if you go ahead. The price is fixed before work starts.
Build with one accountable team
Our core team of around five experienced tradespeople does the work, with trusted subcontractors only where a job needs them. Payments are staged against progress.
Sign-off and guarantee
Building control inspections are completed where they apply, we snag the work with you, and the finished job is covered by an insurance-backed guarantee.
Crowthorne questions
Crowthorne project questions, answered
Do you cover Crowthorne?+
Yes. Crowthorne is part of our regular working area from our Farnborough base at 19 Queens Court, GU14 6BT.
How quickly can you get to Crowthorne?+
It is a short drive, so a first visit is easy to arrange; call 07886 875548.
Do you build garden rooms in Crowthorne?+
Yes, and the large plots here suit them. We build insulated garden rooms on proper foundations, wired and finished to be used year round rather than as a summer shed.
What does a quote cost?+
The visit and a ballpark figure cost nothing. A full itemised quote is £500, provided within 21 days, and deducted from the final price if the work proceeds.
Can you build near mature trees?+
Usually yes, with foundations designed for the root and soil conditions. We assess this at survey rather than after the dig starts.
Are you insured and is the work guaranteed?+
We hold public liability and contractors insurance, and completed work is covered by an insurance-backed guarantee.
Is emergency availability possible in Crowthorne?+
It depends on our current bookings; we are a team of around five, so we tell you our real availability.
Do you also handle driveways and drainage only?+
Yes, hard landscaping, groundworks and drainage are all available on their own.
Request an estimate
Ballpark figures are free. A full itemised quote is £500, deducted from the final price if the job goes ahead, and provided within 21 days.
Get a fixed price for your Crowthorne project
One site visit, one honest ballpark figure, then an itemised quote within 21 days. Nothing is committed until you have a price you can hold us to.
Insured, guaranteed, staged payments · Mon-Sat · 08:00-18:00