Find a TenderOpen for tender Tender notice
Published 25 Sept 2026, 16:12 BST

Official UK procurement notice

The Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties

Authority: Caerphilly County Borough Council (Local council)

5 lotsServicesCompetitive flexible procedureAbove thresholdSME suitableVCSE suitable
Published estimate£300,000envelope for 5 lots · £360,000 inc. VAT
Submission deadline 27 Oct 202612:00 GMT · 31d 18h left
Clarification cut-off 20 Oct 202617:00 BST · questions to the authority
Contract term 2 yrsup to 4 yrs with extensions · starts 1 Dec 2026
Bids per lot · this authority 4all categories · n=39 · competition analysis ↓

What is being bought5 lots · detail below

Published requirement description

Caerphilly County Borough Council (the “Authority”) is seeking to establish a Contract for the Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties (the “Contract”).The requirement includes the cleaning of all external glazing, internal communal windows, canopies, and guttering, supporting the overall upkeep of the Council’s estate and helping to prevent deterioration of building fabric. This service will contribute to providing a safe and professional environment for staff, residents, and visitors while maintaining asset value.

Following the original publication of this opportunity, the clarification and tender submission deadlines were subsequently extended and communicated through the Authority's e-tendering system (Proactis). The revised timetable was not reflected in a corresponding notice on Sell2Wales.

This notice is therefore being issued to ensure transparency and equal visibility to the market and to formally publicise the revised procurement timetable applicable to this procurement exercise.

  • The authority expects to re-tender this requirement around 1 Jun 2030, 23:59 BST.
  • How the procedure runs: As detailed in the tender documents.

CPV: Building-cleaning services · Office cleaning services · School cleaning services · Window-cleaning services

Lots and requirements (5)Procurement structure

5 lots · all with a published value (£300,000 together) · same evaluation weights on every lot
Lot #1BargoedRenewal 2 yrsSMEVCSEPublished value£58,442
Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties in Bargoed.
Contract period: 1 Dec 2026 — 30 Nov 2028 (2 yrs) · up to 4 yrs with extensionsEligibility: SME eligibleVCSE eligibleDelivery: WalesTurnover guideline: ~£58,362/yr≈ 2× annual value
Value
£58,442 exc. VAT · £70,130 inc. VAT
Extensions
The contract can be extended up to 24 months at the sole discretion of the Council.
90911200 Building-cleaning services90911300 Window-cleaning services90919200 Office cleaning services90919300 School cleaning services

Who is likely to bid for this lot ↓

Lot #2Ystrad / Tir Y BirthRenewal 2 yrsSMEVCSEPublished value£31,169
Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties in Ystrad / Tir Y Birth.
Contract period: 1 Dec 2026 — 30 Nov 2028 (2 yrs) · up to 4 yrs with extensionsEligibility: SME eligibleVCSE eligibleDelivery: WalesTurnover guideline: ~£31,126/yr≈ 2× annual value
Value
£31,169 exc. VAT · £37,403 inc. VAT
Extensions
The contract can be extended up to 24 months at the sole discretion of the Council.
90911200 Building-cleaning services90911300 Window-cleaning services90919200 Office cleaning services90919300 School cleaning services

Who is likely to bid for this lot ↓

Lot #3BlackwoodRenewal 2 yrsSMEVCSEPublished value£97,403
Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties in Blackwood.
Contract period: 1 Dec 2026 — 30 Nov 2028 (2 yrs) · up to 4 yrs with extensionsEligibility: SME eligibleVCSE eligibleDelivery: WalesTurnover guideline: ~£97,269/yr≈ 2× annual value
Value
£97,403 exc. VAT · £116,883 inc. VAT
Extensions
The contract can be extended up to 24 months at the sole discretion of the Council.
90911200 Building-cleaning services90911300 Window-cleaning services90919200 Office cleaning services90919300 School cleaning services

Who is likely to bid for this lot ↓

Lot #4RiscaRenewal 2 yrsSMEVCSEPublished value£42,857
Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties in Risca.
Contract period: 1 Dec 2026 — 30 Nov 2028 (2 yrs) · up to 4 yrs with extensionsEligibility: SME eligibleVCSE eligibleDelivery: WalesTurnover guideline: ~£42,799/yr≈ 2× annual value
Value
£42,857 exc. VAT · £51,429 inc. VAT
Extensions
The contract can be extended up to 24 months at the sole discretion of the Council.
90911200 Building-cleaning services90911300 Window-cleaning services90919200 Office cleaning services90919300 School cleaning services

Who is likely to bid for this lot ↓

Lot #5CaerphillyRenewal 2 yrsSMEVCSEPublished value£70,130
Provision of Window Cleaning and Associated Cleans for Caerphilly County Borough Council’s Corporate Properties in Caerphilly.
Contract period: 1 Dec 2026 — 30 Nov 2028 (2 yrs) · up to 4 yrs with extensionsEligibility: SME eligibleVCSE eligibleDelivery: WalesTurnover guideline: ~£70,034/yr≈ 2× annual value
Value
£70,130 exc. VAT · £84,156 inc. VAT
Extensions
The contract can be extended up to 24 months at the sole discretion of the Council.
90911200 Building-cleaning services90911300 Window-cleaning services90919200 Office cleaning services90919300 School cleaning services

Who is likely to bid for this lot ↓

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published — the tender pack may add more
How bids are scored · same split on all 5 lots
Price: 100%

No conditions of participation were published on the notice; check the tender documents.

Competition analysis · published record, not a forecast of who will bid

How Caerphilly County Borough Council buys Cleaning services (CPV 9091) — and who usually turns up

Caerphilly County Borough Council’s own published record, next to the Wales (Cymru) market for the same work. Frameworks and DPS are kept out: they attract a different number of bids. Whole-market view: Cleaning services (CPV 9091) →

1

How the contest usually goes

Left: this authority. Right: the market where the work is delivered. Bids and award-vs-estimate pairs are per lot, from contested contracts only — direct awards (including PA 2023 transparency notices) report one bid by definition and are left out. On Procurement Act 2023 notices the count is the tenders assessed at the final stage, not every submission received; pairs compare like with like (VAT-exclusive, or VAT-inclusive on both sides). Empty means nothing was published, not filled in from elsewhere.

This authority

Caerphilly County Borough Council

contract notices in 36 months: 3 in CPV 9091 · 10 in division 90 (3 route not published) · 189 in all categories (12 without competition · 30 route not published)

Bids per lot
i

How many companies usually bid for work like this.

Middle value of published bid counts, one per lot, for this buyer or this region in the same sector.

Based on this buyer’s tenders in all categories, last 36 months: 39 lots. 22 lots are from Procurement Act 2023 notices (bids assessed, middle 3) and 17 from older notices (bids received, middle 7).

Nothing is filled in from UK-wide numbers. An empty tile means nothing usable was published.

4all categories · 36m · n=39 lots
Single-bid lots
i

How often only one company bid.

Share of lots that received exactly one bid, on the same competitions as the bids figure.

Based on this buyer’s tenders in all categories, last 36 months: 39 lots.

High means a thin market or an incumbent that is hard to beat.

10%all categories · 36m · n=39 lots
Award vs estimate
i

Do awards for work like this land above or below the estimate.

Estimate against award per lot, for this buyer or this region in the same sector.

Based on this buyer’s tenders in all categories, last 36 months: 46 pairs.

A past pattern, not a price to bid.

1% belowall categories · 36m · n=46 pairs
Deadline → award date
i

How long buyers here take to decide after bids close.

Middle value in days from the deadline to the first award notice, on competitions that published both dates.

Based on this buyer’s tenders in all categories, last 36 months: 19 notices.

Only decided tenders count, so slow ones still waiting are not in.

Last 36 months.

55dall categories · 36m · n=19 notices
Notice updates
i

How often this buyer changes a notice after publishing it.

Middle number of amendments per notice. Deadline extensions and corrections both count.

Based on this buyer’s tenders in all categories, last 24 months: 224 notices.

Last 24 months.

0all categories · 24m · n=224 notices
Awarded without competition
i

How often this buyer awards without a competition.

Direct or limited awards as a share of its notices that say which procedure was used. These routes are legal in defined cases. This is just the record.

Based on this buyer’s tenders in this sector (CPV 9091), last 36 months: 3 notices.

Last 36 months.

0%CPV 9091 · 36m · n=3 notices
Bids per lot · history, not this notice’s lots robust · n=39
i

How the number of bidders is spread across lots.

Each lot with a published bid count is put in a band: one bid, two to three, four to six, seven or more. Real competitions only.

Based on 39 lots on 26 contested notices · all categories, last 36 months.

  • 1 bid 10%
  • 2–3 33%
  • 4–6 23%
  • 7+ 33%

Median 4 · 39 lots on 26 contested notices · all categories.

Winning award vs estimate robust · n=46
i

How often winners come in below, near or above the estimate.

Each lot with both an estimate and an award is placed by how far the award sat from the estimate.

Based on 46 lot pairs · all categories, last 36 months.

A past pattern, not a price to bid.

  • Below estimate 48%
  • Within ±2% 37%
  • Above estimate 15%

46 lot pairs · all categories.

The market · delivery region

Wales (Cymru) · Cleaning services (CPV 9091)

contract notices delivered in Wales (Cymru) in 36 months: 56 in CPV 9091 (48 competed, 6 route not published) · 238 in division 90 (192 competed, 39 route not published)

Bids per lot
i

How many companies usually bid for work like this.

Middle value of published bid counts, one per lot, for this buyer or this region in the same sector.

Based on this region’s tenders in this sector (CPV 9091), last 36 months: 33 lots. 14 lots are from Procurement Act 2023 notices (bids assessed, middle 3) and 19 from older notices (bids received, middle 4).

Nothing is filled in from UK-wide numbers. An empty tile means nothing usable was published.

4CPV 9091 · 36m · n=33 lots
Single-bid lots
i

How often only one company bid.

Share of lots that received exactly one bid, on the same competitions as the bids figure.

Based on this region’s tenders in this sector (CPV 9091), last 36 months: 33 lots.

High means a thin market or an incumbent that is hard to beat.

15%CPV 9091 · 36m · n=33 lots
Award vs estimate
i

Do awards for work like this land above or below the estimate.

Estimate against award per lot, for this buyer or this region in the same sector.

Based on this region’s tenders in this sector (CPV 9091), last 36 months: 20 pairs.

A past pattern, not a price to bid.

10% belowCPV 9091 · 36m · n=20 pairs
Deadline → award date
i

How long buyers here take to decide after bids close.

Middle value in days from the deadline to the first award notice, on competitions that published both dates.

Based on this region’s tenders in this sector (CPV 9091), last 36 months: 13 notices.

Only decided tenders count, so slow ones still waiting are not in.

Last 36 months.

52dCPV 9091 · 36m · n=13 notices
SME bidders
i

How much of this market goes to small and medium firms.

SME bidders where buyers published the split, otherwise SME winners.

Based on this region’s tenders in this sector (CPV 9091), last 36 months: 30 lots.

Last 36 months.

66%CPV 9091 · 36m · n=30 lots
Winners based in the region
i

How much work like this goes to companies based in the delivery region.

Awards in this category delivered here where the winner’s registered address is in the region.

Based on this region’s tenders in this sector (CPV 9091), last 36 months: 26 awards.

Registered address, so a national firm with a local branch counts as outside.

Last 36 months.

54%CPV 9091 · 36m · n=26 awards
Bids per lot · history, not this notice’s lots robust · n=33
i

How the number of bidders is spread across lots.

Each lot with a published bid count is put in a band: one bid, two to three, four to six, seven or more. Real competitions only.

Based on 33 lots on 30 contested notices · CPV 9091, last 36 months.

  • 1 bid 15%
  • 2–3 27%
  • 4–6 45%
  • 7+ 12%

Median 4 · 33 lots on 30 contested notices · CPV 9091.

Winning award vs estimate robust · n=20
i

How often winners come in below, near or above the estimate.

Each lot with both an estimate and an award is placed by how far the award sat from the estimate.

Based on 20 lot pairs · CPV 9091, last 36 months.

A past pattern, not a price to bid.

  • Below estimate 55%
  • Within ±2% 10%
  • Above estimate 35%

20 lot pairs · CPV 9091.

robust · n=46
i

Where this tender’s estimate would land if the usual pattern repeats.

We apply the buyer’s usual movement between estimate and award (or the region’s) to the estimate on this notice.

This notice gives one total for several lots, so we show the percentage but do not turn it into pounds.

A benchmark, not a price to bid.

Awards in Caerphilly County Borough Council (all categories, n=46 pairs) land a median 1% below. Applied to each lot’s own published value in the lot table below — the notice total (£300,000) is an envelope for 5 lots and is not converted.
2

Who you are likely to meet
i

Who you may be up against.

Suppliers on this buyer’s earlier similar contracts, and suppliers whose record fits this tender.

A guess from the record. Buyers do not publish who is bidding.

Suppliers on this authority’s earlier similar contracts, then suppliers with a matching track record — from published award history, not a bid list

By lot · 5 lots
i

Likely bidders for each lot.

For each lot: the previous winner, suppliers with history on this lot, and suppliers strong in this category.

A guess from the record, not a bidder list.

LotAwarded / admittedLikely suppliers
Bargoed£58,442 · CPV 90911200 · expect ≈ £58k (1% below, Caerphilly County Borough Council)
CPV market ranking when lot-specific history is thin.
—
Ystrad / Tir Y Birth£31,169 · CPV 90911200 · expect ≈ £31k (1% below, Caerphilly County Borough Council)
CPV market ranking when lot-specific history is thin.
—
Blackwood£97,403 · CPV 90911200 · expect ≈ £97k (1% below, Caerphilly County Borough Council)
CPV market ranking when lot-specific history is thin.
—
Risca£42,857 · CPV 90911200 · expect ≈ £43k (1% below, Caerphilly County Borough Council)
CPV market ranking when lot-specific history is thin.
—
Caerphilly£70,130 · CPV 90911200 · expect ≈ £70k (1% below, Caerphilly County Borough Council)
CPV market ranking when lot-specific history is thin.
—

Ranked by CPV market fit, scale and buyer history — historical public-sector wins, not the published bidder list or a predicted field. Lots with the same shortlist are grouped.

Suppliers with a similar track record — and how they price
i

Suppliers with a similar track record, and how they price.

Suppliers matched on wins in this category, history with this buyer, location and size. Their award vs estimate is from their own past wins.

A guess from the record, not a bidder list.

SupplierEvidenceLast awardTheir award vs estimateRelevance
ADAPT BUSINESS SERVICES LIMITED 7 class wins3 months agono comparable pairs63%
BELL CLEANING SERVICES LTD SME9 class wins4 months agono comparable pairs59%
S J CLEANING (MIDLANDS) LIMITED SME4 class wins3 months agono comparable pairs58%
CITY CLEAN (NORTHERN) LIMITED SME4 class wins2 months agono comparable pairs57%
Struan Window Cleaning SME5 class wins21 months agono comparable pairs56%

Matched by the nightly worker on class wins, buyer history, delivery geography, scale and notice text; relevance is a 0–100% heuristic score, not a probability of bidding. “Their award vs estimate” is that supplier’s median on its own comparable single-supplier wins, CPV 9091 first. Nobody here is known to be bidding.

Coverage and what to read with care
  • Each tile explains itself. The on a figure says what it is, how it is counted and which scope this notice’s own record came from (class, division, all categories, or the authority’s 24-month row). The two columns are never blended and nothing is filled from a UK-wide figure; an empty tile means the source published nothing usable. Long form: Methodology.
  • Coverage. Roughly 40 % of notices publish a bid count; about half publish an ITL1 delivery location, so the market column reads the authority’s registered region when the notice has none (labelled). About 30 % of award-vs-estimate pairs are exact matches — the buyer published the award at the estimate. n is on every figure; a thin sample is muted, never hidden.
  • “Match” and “relevance” are model scores from the nightly matcher, not published facts. Find a Tender does not publish who is bidding. Never shown: contact details, payment behaviour, or a recommended price.

Procedure terms & legal framework

From the official record
Procedure method
Competitive flexible procedure
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Services
Notice status
Open for tender
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Yes · next expected 1 Jun 2030
First published
25 Sept 2026, 16:12 BST
Last source update
25 Sept 2026, 16:12 BST
Award evaluation window
Submission end — 16 Nov 2026, 23:59 GMT
Authority reference
CCBC/PS3008/26/AB
Latest notice
Tender notice (UK4)
Classification (CPV)
Building-cleaning servicesOffice cleaning servicesSchool cleaning servicesWindow-cleaning services
Delivery area
Wales (UKL16)
Official registry OCID
ocds-h6vhtk-06f1f4 Find a Tender
How it runs
As detailed in the tender documents.

How to participate & submission route

Official notice Submit via ProContract (Due North)
Submission portal named on this notice: ProContract (Due North) · Who buys & how to bid on ProContract
Supplier login requiredElectronic submission allowedLanguage: EN, CY
Access & registration note: Free · short registration with manual review; public opportunity list
Expression of interest (EOI)
—
Tender submission deadline
27 Oct 2026, 12:00 GMT
Clarification deadline
20 Oct 2026, 17:00 BST
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en, cy
Detailed submission instructions & authority contactsFrom official release
1.Log in to the Proactis Supplier Portal at https://supplierlive.proactisp2p.com/Account/Login 2. Click the "Sign Up" option on the Portal homepage (If already registered go to point 11.). 3. Enter your correct Organisation Name, Details and Primary Contact Details. 4. Please make a note of the Organisation ID and User Name, then click "Register". 5. You will then receive an email from the system asking you follow a link to activate your account. 6. Please enter the more…information requested, clicking on the blue arrow to move on to the next stage and follow the instructions ensuring that you enter all applicable details. 7. In the Classification section please ensure that you select the Product Classification Codes (CPV Codes) that appear in the tender notice, it is essential that only CPV Codes, specific to your organisation are added to your profile. 8. Buyer Selection - At this stage you are required to indicate which Buyer Organisations you would like to register with. Please remember to register with Caerphilly this ensures that you will be alerted to all relevant opportunities. 9. Terms & Conditions - Read the terms and conditions of the use of this Supplier Portal and tick the box to denote you have read and understood the terms and that you agree to abide by them. If you do not agree you cannot complete the registration process. Once you have agreed click on the blue arrow to move on to the next stage. 10.Insert a password for the admin user and repeat it. The password MUST be between 6 and 50 characters in length. It must contain at least 2 number(s). Once completed select 'Complete Registration' and you will enter the Supplier Home page. 11. From the Home Page, go to the "Opportunities" icon, all current opportunities will be listed. Click on the blue arrow under the field 'Show Me' of the relevant opportunity then click to register your interest on the applicable button. 12. Refresh your screen by clicking on the opportunities icon located on the left hand side, to view the opportunity click the blue arrow. 13.Note the closing date for completion of the relevant project. To find all available documentation please drop down the 'Request Documents' option and click to download all documents. 14. You can now either complete your response or "Decline" this opportunity. All queries are to be made via the messaging system on the Proactis portal. Please note we will NOT accept any questions/queries via telephone/email. If you require assistance please contact Jemma Ford 01443 863163 - [email protected] submitting a tender, an e tendering supplier guide has been produced which will help tenderers through completing a tender submission using our Proactis Plaza system.

Timeline

6 published dates · Europe/London
  1. Tender notice published21 days ago
    4 Sept 2026, 10:08 BST
  2. Latest notice publishedearlier today
    25 Sept 2026, 16:12 BST
  3. Clarification questions byin 25 days
    20 Oct 2026, 17:00 BST
  4. Submission deadlinein 32 days
    27 Oct 2026, 12:00 GMT
  5. Award decision expected byin 52 days
    16 Nov 2026, 23:59 GMT
  6. Contract startsin 66 days
    1 Dec 2026, 00:00 GMT

Commercial outcome & contract awards

Nothing awarded yet
Awards (0)
No award published
Contracts (0)
No contract published
Bid statistics
No aggregate bid statistics published

Notice history

3 events · 2 releases on Find a Tender · since 4 Sept 2026
  1. Tender notice published
    25 Sept 2026, 16:12 BSTUK4
  2. Deadline moved to 27 Oct 2026, 12:00 GMT
    25 Sept 2026, 16:12 BST+28 days · was 29 Sept 2026, 12:00 BST
  3. Tender notice published
    4 Sept 2026, 10:08 BSTUK4
Published amendments (1)

To allow sufficient time for clarification responses to be issued and considered by all interested bidders, the clarification deadline has been extended to 20 October 2026, and the tender submission deadline has been extended to 12:00 noon on 27 October 2026.

Contracting authority & participating public bodies

Caerphilly County Borough Council

Contracting authorityPublic authority - sub-central governmentWelsh devolved regulations apply GB-PPON: PWHP-2369-JPYL Penallta House, Tredomen Park, Hengoed, Wales, CF82 7PG

Official documents & specifications (3)

Official links; attachments are not copied

Tender pack and attachments

  • Conflict of interest declarationtenderConflict of interest declarationNot published

Notices published for this procedure

  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender