Unresolved approvals
Planning, Building Regulations, Party Wall matters and sewer ownership should be understood before mobilisation.
One accountable route from ground to finish
House Extensions in Surrey
Single-storey, side-return and wraparound extensions delivered with the structural, drainage and groundworks detail resolved early.
93
Checkatrade reviews
Since 2012Checkatrade member
SurreyGuildford-based team
One teamGroundworks to finish
The direct answer
House Extensions: what matters most?
A well-run extension is a sequence of dependent decisions: approvals, drainage, foundations, structure, weatherproofing and services. We plan those interfaces before site work starts so the programme is easier to understand and control.
Our first survey focuses on the variables that change method, risk and price. The written scope then states the included work, important assumptions and the information or approvals still required.
Real A Jones project photographyTypical scope
What we can include
- Groundworks, foundations and drainage
- Brickwork and structural openings
- Steel installation and structural alterations
- Single-storey and side-return extensions
- Shell-build or broader contractor packages
- External works and making good
Every site is different. The quotation—not a generic web list—defines the final package.
Built by A Jones Contractors
Relevant work, shown properly.
These are genuine project photographs from our own archive. They show the workmanship, sequencing and finished details behind this service.
Devil in the detail
Four issues worth resolving before work starts.
Good planning makes risk visible while there is still time to change the method.
Occupied-home logistics
Access, dust, temporary weathering, security and service interruptions need an explicit plan.
Design interfaces
Steel bearings, floor build-ups, drainage runs and existing levels often meet in the same constrained area.
Scope gaps
A transparent quote states who supplies drawings, steels, glazing, finishes, waste and inspections.
How the work progresses
A six-stage route from question to handover.
The exact construction changes; the discipline of resolving information before burying it does not.
- 1
Review brief, drawings and approvals
- 2
Survey access and existing construction
- 3
Clarify scope and allowances
- 4
Plan programme and protection
- 5
Build through agreed inspection stages
- 6
Snag, record and hand over
Plan with better information
Use a calculator, then let the site visit replace assumptions.
Our tools organise quantities and project details without pretending to be a quotation. Results make the first survey more useful.
Frequently asked
House Extensions questions
Clear answers before commitment make the survey, quotation and build easier to compare.
Do you build the whole extension?
We can discuss packages from groundworks and structural shell through to broader building work. The quotation will make inclusions, specialist trades and client-supplied items clear.
Can you work while we remain at home?
Often yes. The right answer depends on the extent of structural work and service interruptions. We agree access, separation, dust control and temporary security before starting.
Do extensions always need planning permission?
No. Some can fall within permitted development, but the rules and site constraints vary. Confirm the planning and Building Regulations position for your property before construction.
How long does a house extension take?
A straightforward single-storey build often takes several months once work starts, but design, approvals, procurement, weather and complexity change the programme. We provide a project-specific sequence.
Continue planning
Related services
The next useful step
Ready to turn the site conditions into a clear scope?
Send the property location, a few photos and any drawings. We will explain the most useful next survey.