Supply + Erect Service

At a glance

For quality, warranty, clear accountability and lender confidence, our standard delivery route is Supply & Erect. CPS must be erected by an approved installer for the system warranty to remain valid, while specialist SIP erection reduces the risk of assembly, airtightness and weatherproofing errors. One experienced team takes responsibility for checking the kit and completing the erection correctly.

For a qualifying new-build home, Supply & Erect is normally zero-rated for VAT. A Supply Only sale generally requires VAT to be charged and any reclaim can be more complicated. Customers should confirm the VAT treatment applicable to their own project.

Scope — what’s included

Supply & Erect

✓Factory manufacture of the superstructure per approved drawings/specification.

✓Insulation within structure.

✓Rooflights (supplied only)

✓External doors and windows.

✓Membranes.

✓Internal partitions (non-load-bearing elements supplied only)

✓Erection by an approved team (method statements, risk assessments, lift plan and programme).

✓Setting-out checks, tolerance control, membranes/tapes to spec and weather-tight shell to the agreed stage.

✓On-site QA checklists, sign-off and warranty enablement; two site visits (pre-delivery and handover).

Kit component diagrams

Select either diagram to view the full-size technical sheet.

Exploded diagram of the HebHomes Supply and Erect timber kit

Supply + Erect kit components
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External and internal kit assembly
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Stage payments

Milestone	Supply & Erect
Deposit	£950 (non-refundable)
Stage 01 — Building Warrant Draft	10% (cumulative 10%)
Stage 02 — Building Warrant Final	10% (cumulative 20%)
Stage 03 — Window Order	20% (cumulative 40%)
Stage 04 — Prior to Kit Manufacture	40% (cumulative 80%)
Stage 05 — Delivery / First Load	17.5% (cumulative 97.5%)
Stage 06 — Post Erection	2.5% (cumulative 100%)
Stage 07 — Expenses	Expenses invoice

Payments due within five days of invoice unless stated otherwise.
Prices provisional until engineering/site information known; reviewed at each stage.
Steel confirmed after Stage 2; budget valid for three months from issue.
VAT excluded unless installation supply applies.
Late payment may trigger interest; goods not dispatched if terms unmet.
Cancellation fee 10% after Stage 2, plus costs incurred.

Responsibilities & interfaces

Client / Principal Contractor provides

Site access for 12m articulated lorry / 15m trailer; off-loading within 2 hours; the buyer is responsible for off-loading facilities.
Lay-down & hardstanding: 14-ton axle load area for panels/insulation; 3m perimeter hardstanding (≈5-ton axle load) around base; pre-assembly area if roof panels require.
Foundations: correctly constructed; slab/base levelled to within ±10mm; setting-out to agreed datum.
Full external perimeter scaffold (3 sides prior to start, fourth before roof install) to erection team’s acceptance; unsafe scaffold must be replaced.
Welfare (toilet, drying, canteen), power (240 V or min. 7.5 kVA generator; diesel by client), skips, security and traffic management.
Telehandler/crane for lifts (charged at cost if arranged by HebHomes); 5m mobile towers (2m & 3m configs); compliant fall-protection system (e.g., G-deck).
Crane base
Access hours 08:30–18:30 Mon–Sat unless otherwise agreed; inform HebHomes of unusual site features/constraints.

HebHomes / Erection Team provides

Trained site labour; method statements; risk assessments; programme; lift plan; specialist tools/equipment (110 V transformer, compressor, air tools).
Manufacturing/assembly drawings and on-site QA; pre-delivery inspection and post-erection handover visit.
Installation to our programme and construction drawings; weather-dependent sequencing.

Ownership, guarantees & approvals

Ownership transfers at post-erection handover, once the Supply & Erect package has been paid in full.
Hemsec SIP / Sigma II are BBA-approved; manufacturer product guarantees apply.
Liability cap: £500,000 (excluding personal injury/death). No liability for consequential loss.
Design obligations: HebHomes provides kit working drawings & structural calcs for the kit; client’s engineer must certify foundations and non-kit elements.
Draft SAP provided for warrant; EPC can be provided at completion (additional fee).

Common Questions

Why does HebHomes normally provide Supply & Erect rather than Supply Only? ›

It protects quality, warranty and accountability. CPS must be erected by an approved installer for the system warranty to remain valid. SIP erection also requires experience: mistakes in assembly, airtightness or weatherproofing can be difficult and costly to correct. By supplying and erecting the kit, HebHomes and its specialist team can inspect the components, resolve issues promptly and take clear responsibility for the completed kit stage.

For a qualifying new-build home, Supply & Erect is normally zero-rated for VAT. Supply Only generally requires VAT to be charged, and any reclaim can be more complicated. Supply Only is therefore not a standard HebHomes service and would only be considered exceptionally. Customers should confirm their own VAT position.

When are payments due? ›

Deposit, then staged invoices at Warrant Draft/Final, Window Order, prior to Manufacture, Delivery/First Load, Post-Erection, plus an expenses invoice. Payments due within five days of invoice unless otherwise stated.

What access and ground conditions are required? ›

Access for a 12 m articulated lorry / 15 m trailer; off-load within 2 hours; 14-ton hardstanding lay-down; 3m perimeter hardstanding (~5-ton); base level ±10mm; clear working area and pre-assembly area if needed.

Who provides scaffold, welfare, power and crane/telehandler? ›

Client provides scaffold, welfare, power, skips and crane/telehandler (or we arrange at cost). Under S&E we agree interfaces at Pre-Start; our team prepares the lift plan and supervises lifts.

What base tolerance is required? ›

Slab/base levelled to within ±10mm; foundations by client’s engineer; setting-out to agreed datum.

What are site hours and notifications? ›

08:30–18:30 Monday–Saturday or as agreed. Tell us about any unusual site constraints in advance.

Are travel, accommodation and telehandler/crane included? ›

No. Excluded and charged at cost (or provided by the client). Estimate issued after Stage 2; reconciled post-erection.

When does ownership transfer and who insures? ›

The client insures the kit from delivery. Ownership transfers at post-erection handover once the Supply & Erect package has been paid in full, as set out in the contract.

Do you provide foundation design or SER certification? ›

No. We provide kit drawings and calcs only. Your engineer/agent provides foundations and certification. Planning & Warrant available under a separate contract.

What’s included in the CPS kit under Supply & Erect — CPS (Closed Panel System)? ›

Ground & first floor: DPC (under wall plate), perimeter soleplate, floor cassette with 254mm posi-joists, 22mm MR T&G chipboard factory-fitted, rim board.
External walls (closed panel): 47×235mm I-Studs fully filled with blown-fibre insulation; 9mm OSB both faces; 25×38mm internal service battens; foam air seals to head/base/joints; breather membrane factory-fitted (reflective/UV-stable per finish); all fixings.
Internal load-bearing walls: prefabricated panels with 38×89mm CLS studs, OSB lining to one side where required by the structural engineer.
Roof (habitable zones): roof cassette panels with 300mm I-Studs filled with mineral wool; 9mm OSB internal face; 25×38mm internal service battens; external roofing membrane.
Single-storey roofs: fink trusses + sarking/OSB (to engineer specification).
Openings: windows & external doors to the project schedule (installed under S&E); rooflights with flashings/thermal collars supplied, not installed.
Ancillaries: structural posts/beams as required; steelwork/trusses as designed (confirmed after engineering).
Vapour control (CPS): no VCL required to walls—use foil-backed plasterboard; strips fitted behind junctions to enable later continuity at coomb/joins.

What’s included in the SIP kit under Supply & Erect — SIP (Structural Insulated Panels)? ›

Ground & first floor: DPC (under wall plate), perimeter soleplate; metal-web floor joists with hangers; 22mm MR T&G chipboard; rim board.
External walls (Hemsec SIP): c.150mm SIPs with solid timber splines; OSB full face internally & externally; breather membrane (e.g., TF200 Thermo or Tyvek UV facade) and all SIP fixings.
Internal load-bearing walls: SIP load-bearing panels and sheathed studs to engineer design.
Roof (habitable zones): SIP roof panels (typically 150mm; 175mm if required) with roofing membrane (e.g., VP400) and fixings.
Single-storey roofs: fink trusses + sarking/OSB where applicable.
Openings: windows & external doors to the project schedule (installed under S&E); rooflights with flashings/thermal collars supplied, not installed.
Ancillaries: structural posts/beams as required; steelwork/trusses as designed (confirmed after engineering).
Vapour control (SIP): VCL (foil & tape) supplied, not installed; strips fitted behind external junctions so the VCL can be completed after kit erection.

What’s not included in the kit? ›

Groundworks/sub-structure, cladding, final roof coverings, external battens, ties to block/brick, firestops.
Non-structural bulkheads, false ceilings, decking.
Steel — charged at cost.
Scaffold, welfare, power, skips; transport/accommodation/subsistence; telehandler/crane (charged at cost if we arrange).

Under S&E, all listed kit elements are installed unless marked “supplied, not installed” above.