Open14 days left · express interest by 5pm, Friday 27 November 2026

Depot Fire Break & Void Detection Surveys

Thameslink Southern Great Northern Limited (TSGN) · Public undertaking

In brief

Thameslink Southern Great Northern Limited (TSGN) is looking for suppliers for construction and electrical work (East of England, London, South East).

The estimated value is £540,000 including VAT.

The contract runs for 1 year, starting 26 April 2027.

It is split into 3 lots, so a supplier can bid for part of the work.

The buyer says it is suitable for small and medium-sized businesses.

This is the first stage: register your interest by 5pm, Friday 27 November 2026, and shortlisted suppliers are invited to bid.

Built from the notice's own fields. Always check the official notice before you bid.

Can I win this?

Key dates

Questions by: 4pm, Friday 20 November 2026
Express interest by: 5pm, Friday 27 November 2026

This is the first stage. You register interest now, and shortlisted suppliers are invited to bid later.

How bids are scored

Bedford, Peterborough , Letchworth , Welwyn

Commercial 40% · Technical 60%

Quality matters most. You can win without being the cheapest.

Selhurst, Battersea , Hornsey, Streatham Hill , Cricklewood

Commercial 40% · Technical 60%

Quality matters most. You can win without being the cheapest.

Brighton , Bognor Regis, Hove , Littlehampton Horsham

Commercial 40% · Technical 60%

Price matters most. Expect to compete hard on cost.

Competition

Usually high: a median of 6 bids per contract for construction contracts in this region (from 497 awards in the last 12 months).

What the notice says

It has been highlighted a number of non-compliances in connection with the fire break and void protection of the ceiling voids, Throughout Several of our depots. The project will be to review the existing fire prevention measures currently in place within the ceiling voids noting any associated fire stopping, fire breaks or fire prevention currently in place. Culminating in producing a scope of works for fire protection of the roof void, including fire breaks, fire stopping to any existing walls and a full and considered review of the void protection in line with the current fire alarm system For more information about this opportunity, please visit the eSourcing portal at: https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Fire-alarm-system-installation-work./55RTH245YJ To respond to this opportunity, please click here: https://gtr.delta-esourcing.com/respond/55RTH245YJ

Should I bid?

Tick what applies to you. Nothing is saved.

Can you prepare a good bid in 14 days?Leave time for clarification questions and sign-off.
Is a contract of about £540,000 a size you can deliver?Buyers often check that your turnover is comfortably larger than the yearly contract value.
Can you deliver in East of England, London, South East?Check the delivery locations in the tender documents.
Is one of the 3 lots a good fit?You can usually bid for one lot without bidding for the others.
Are you registered on the Central Digital Platform?You need to be registered to take part under the Procurement Act 2023.
The buyer says this suits small businesses.A good sign if you are an SME, but check the requirements.

How to bid

Read the full notice on Find a Tender, including any tender documents it links to.
Register your organisation on the Central Digital Platform (through Find a Tender) if you have not already. Suppliers need to be registered to take part in procurements under the Procurement Act 2023.
Submit your bid through the buyer's e-tendering portal: gtr.delta-esourcing.com.
Send clarification questions before 4pm, Friday 20 November 2026.
Register your interest before 5pm, Friday 27 November 2026. Shortlisted suppliers are then invited to bid.

Lots

Lot	Trade	Value
Bedford, Peterborough , Letchworth , Welwyn 26 April 2027 to 25 April 2028 What this lot covers It has been highlighted a number of non-compliances in connection with the fire break and void protection of the ceiling voids, Throughout Several of our depots. The project will be to review the existing fire prevention measures currently in place within the ceiling voids noting any associated fire stopping, fire breaks or fire prevention currently in place. Culminating in producing a scope of works for fire protection of the roof void, including fire breaks, fire stopping to any existing walls and a full and considered review of the void protection in line with the current fire alarm system This lot is for Depots in the Northern Geographical area of TSGNs estate	Construction	£168,000
Selhurst, Battersea , Hornsey, Streatham Hill , Cricklewood 26 April 2027 to 25 April 2028 What this lot covers It has been highlighted a number of non-compliances in connection with the fire break and void protection of the ceiling voids, Throughout Several of our depots. The project will be to review the existing fire prevention measures currently in place within the ceiling voids noting any associated fire stopping, fire breaks or fire prevention currently in place. Culminating in producing a scope of works for fire protection of the roof void, including fire breaks, fire stopping to any existing walls and a full and considered review of the void protection in line with the current fire alarm system This lot is for Depots within the London Area	Construction, Electrical, Fire safety	£204,000
Brighton , Bognor Regis, Hove , Littlehampton Horsham 26 April 2027 to 25 April 2028 What this lot covers It has been highlighted a number of non-compliances in connection with the fire break and void protection of the ceiling voids, Throughout Several of our depots. The project will be to review the existing fire prevention measures currently in place within the ceiling voids noting any associated fire stopping, fire breaks or fire prevention currently in place. Culminating in producing a scope of works for fire protection of the roof void, including fire breaks, fire stopping to any existing walls and a full and considered review of the void protection in line with the current fire alarm system This lot is for Sussex are depots of the TSGN estate	Construction, Electrical, Fire safety	£168,000

Timeline

26 October 2026Tender notice · UK4, notice 101045-2026

About the buyer

Thameslink Southern Great Northern Limited (TSGN)Last 12 months

Procurements

Awards

Suppliers it has used most for construction

Kone Cranes Demag Limited1 contract

All tenders and awards from Thameslink Southern Great Northern Limited (TSGN)

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From notice 101045-2026 on Find a Tender, first published 26 October 2026. We last checked for changes on 26 October 2026.