► Terms and conditions

► Estimate, booking & scope

Instant estimate is indicative and based on your selections.
Final price depends on structural engineer specification, site survey and approvals.
Steel sizes, bearings and connection details must be confirmed before works commence.
If site conditions differ materially, any adjustment is agreed before starting.

► What’s included / not included

Included (where selected)

Steel supply to selected allowance
Delivery and on-site handling (typical London residential)
Temporary propping/support for installation
Break-out/opening-up allowance
Installation labour and fixings allowance
Waste removal from steel works

Not included (unless confirmed)

Structural engineer fees or revisions
Building Control or party wall costs
Making good, plastering or decorating
Utility diversions or specialist isolations
Unforeseen obstructions or hazardous materials

► Pricing logic (transparent)

Beams — install bands

Up to 2m: £950
2–3m: £1,150
3–4m: £1,350
4–5m: £1,650
5–6m: £1,950
Over 6m: £2,350

Long-span surcharges: 4m+ £150, 6m+ £500, 8m+ £1,000, 10m+ £1,500.

Columns — install bands

Up to 2.5m: £650
2.5–3.5m: £850
3.5–4.5m: £1,050
Over 4.5m: £1,350

Height surcharges: 3m+ £100, 4m+ £250, 5m+ £450.

Location & load allowances

Extension: +0%
Existing house: +10%
Loft: +25%
Load / structure above (where selected): uplift applied

Site access & parking uplift

Easy access & free parking: +0%
Restricted access or paid parking: +15%
Very restricted access and paid parking: +35%

Connections & fire protection allowance

Standard steel connections (plates, angles, bolts)
Drilling, fixings, chemical anchors & levelling
Typical domestic fire protection interfaces

Applied as a blended allowance of +15% to reflect typical detailing and compliance requirements.

Worked example

Beam: 6.4m × £145/m = £928
Install band (>6m): £2,350
Long-span surcharges: £650
Subtotal: £3,928
With load above (+35%): £5,303

Estimates assume typical London residential conditions. Restricted access, paid parking requirements, or unknown structure/services may require a site visit before final confirmation.

Structural Steel