Integrated site services means buying security, cleaning, facilities maintenance, construction support and fire protection from one accountable supplier on one contract, instead of from four or five specialists. In the UK it is usually called integrated facilities management, or IFM. The buyer gets one project manager, one report and one point of escalation across every site in scope.

Integrated site services means buying security, cleaning, facilities maintenance, construction support and fire protection from one accountable supplier on one contract, instead of from four or five specialists. In the UK it is usually called integrated facilities management, or IFM. The buyer gets one project manager, one report and one point of escalation across every site in scope.

Key takeaways

• Integrated FM (IFM) is one contract covering multiple hard and soft services. Bundled FM is two or three related services. Single-service FM is one line only.
• IFM is the fastest growing contract type in the UK market. Frost & Sullivan projects IFM penetration reaching around 30.8% of the UK facility management market by 2030.
• The saving from consolidation is mostly coordination cost, not unit rate. Fewer invoices, fewer PQQs, fewer certificate chases, one mobilisation.
• Since 1 October 2025, PPN 002 requires in-scope central government procurements to apply a minimum 10% evaluation weighting to social value. Suppliers who cannot evidence it lose points before price is even considered.
• The qualification floor for UK site services is specific: SIA licensing and BS 7858 screening for security staff, CSCS cards for construction operatives, DBS for school settings, and ISO 9001, ISO 14001 and ISO 45001 management systems.
• Ascent Onsite Group delivered 46 projects across all five divisions in the 12 months to September 2026, including 60 Costa store cleans and 3.5 continuous years at the Royal Mail hub near Rugby.

What is integrated facilities management?

Integrated facilities management is a single contract under which one provider delivers several building and site services, typically a mix of hard services (maintenance, plant, fire systems) and soft services (cleaning, security, front of house), managed through one point of accountability.

The term matters because it is the phrase UK buyers, frameworks and search engines actually use. Site services, onsite services and multi-service provider describe the same thing but carry far less recognition. The distinction from bundled FM is scope and governance: bundled means several related services from one supplier, often still managed separately. Integrated means one contract, one management structure and one performance report across the whole scope.

The UK market for this work is substantial but sized inconsistently depending on what is counted. IBISWorld puts UK Facility Support Services revenue at 19.5 billion pounds for 2026 across 4,406 businesses. Whole of market estimates that include in-house delivery and hard services run far higher: Mordor Intelligence puts the UK facility management market at 83.29 billion US dollars for 2026. Treat any single headline figure with caution. The spread is driven almost entirely by scope definitions.

What does a one operator, five divisions model mean in practice?

It means one supplier runs five distinct capability lines in-house, and the buyer can take any combination of them on a single contract with a single named project manager.

At Ascent Onsite Group the five are: security services (SIA manned guarding, mobile patrols, key holding, remote CCTV), FM and cleaning (daily and specialist cleaning, planned maintenance, waste, grounds, decorating), construction support (CSCS labour, traffic marshals, gatehouse and access control, welfare and logistics, site set-up and close-down), vacant property (steel screens, perimeter barriers, drone surveys, live void monitoring, SIA property caretakers), and fire protection, delivered under the DefendX brand (fire stopping, fire doors, detection and alarm systems, fire risk assessments, compartmentation surveys).

The operational test of the model is whether the divisions actually share a management line. If a supplier subcontracts three of five divisions and sends three separate reports, the buyer has bought a broker, not an operator.

Single-service, bundled or integrated: which contract type fits?

Single-service suits one clear need on one site. Bundled suits two or three related services on a small estate. Integrated suits multi-site portfolios, live construction programmes and any estate where compliance evidence has to be produced on demand.

The honest counterpoint: integrated contracts concentrate risk. If the operator fails, the whole scope fails at once. That is why accreditation depth, financial standing and the ability to self-deliver rather than subcontract matter more in IFM than in single-service buying.

Is one supplier better than several specialists?

For a portfolio or a live site, usually yes, but the gain is in coordination, not in specialism. A good specialist beats a mediocre generalist on any single service. The argument for consolidation is that most site failures happen in the gaps between suppliers, not inside them.

Where single suppliers still win: highly technical, certificated work with a narrow scope, a complex fire engineering package, a specialist asbestos programme, a heritage restoration clean. An integrated operator should be honest about where it self-delivers and where it would recommend a specialist.

What goes wrong when several suppliers share one site?

Four failure modes recur: scope gaps that nobody owns, duplicated mobilisation cost, contradictory reporting, and escalation loops where each supplier attributes a failure to another.

The compliance version is the expensive one. When four suppliers hold four sets of RAMS, insurance certificates, SIA licences and training records on four renewal cycles, the procurement team spends its time chasing documents instead of managing performance. One national housing provider consolidating four suppliers into AOG reported compliance scores up and weekend escalations down, with the procurement team no longer chasing certificates.

How do you move from several suppliers to one without disrupting live sites?

Run the transition service by service, not all at once, and keep the outgoing suppliers live until each replacement line is proven on site.

A workable sequence: agree the full scope and site list, mobilise the lowest-risk service line first (usually cleaning or welfare) and hold it for two reporting cycles, move security and access control next with overlap on the first two shifts, then move specialist and certificated lines last. TUPE assessment runs in parallel from day one, because staff transfer is normally the longest-lead item in any UK FM consolidation.

AOG's stated mobilisation process is a scope confirmation within 24 hours, a site visit, and a tender-ready response with method statement, RAMS and price schedule within 48 hours.

What should the contract and SLA contain?

At minimum: a named project manager with a named deputy, defined response times by service line and severity, audit scores with the audit methodology attached, a single reporting cadence, and the escalation path with the out of hours route stated explicitly.

Add three things buyers routinely forget: the exit plan (what happens to staff, equipment and data at the end), the change mechanism for adding sites or services mid-term, and the social value KPIs. Under PPN 002, in-scope contracts above the KPI threshold now carry reporting obligations rather than aspirations.

How much do integrated site services cost?

There is no credible single rate. Pricing is built from labour hours by skill and shift pattern, plus materials, plant, travel and management overhead, so a manned guarding hour on a night shift in London and a daytime cleaning hour in the Midlands sit at very different points. Any supplier quoting a headline day rate without a site visit is guessing.

Where the saving in consolidation actually comes from, in rough order of size: removal of duplicate management overhead across suppliers, a single mobilisation instead of four, reduced procurement and contract administration cost, shared travel and equipment across service lines on the same site, and bundled pricing where combining services on one site raises utilisation. Unit rates themselves typically move least.

Two live market signals worth knowing, from DataForSEO for the UK: the average cost per click on "construction site security" is 22.38 pounds and on "vacant property security" 24.81 pounds. That is a market where buyer intent is scarce and expensive, which is a reasonable proxy for how contested the work is.

What accreditations should a UK site-services supplier hold?

The floor is: SIA licences for all security operatives, BS 7858 screening, CSCS cards for construction operatives, DBS checks for anyone working in schools, and ISO 9001, ISO 14001 and ISO 45001 management systems. Security officer licensing is a legal requirement enforced by the Security Industry Authority, not a nice to have.

Above that, the pre-qualification badges UK main contractors and public buyers look for are CHAS, SafeContractor, Constructionline (Gold carries the social value assessment), Builder's Profile, PQS/SSIP and Achilles. AOG holds 13 accreditations audited annually, including CHAS Advanced, SafeContractor Approved, Constructionline Gold with Social Value, PQS SSIP, FORS Champion, an Environment Agency waste licence, and BICSc and ALP membership.

Ask for the certificate numbers and expiry dates, not the logos. Logos on a website are not evidence.

Who are the leading integrated FM companies in the UK?

The large-cap tier is Mitie, CBRE, Sodexo, ISS, EQUANS, Serco, OCS and Compass Group. These dominate national frameworks and appear in most published UK FM rankings. Below them sits a mid-market of regional and sector-specialist operators, which is where most construction, housing and education buyers actually contract.

The practical shortlisting question is not size but fit: can the supplier self-deliver every line in your scope, does it hold the accreditations your framework requires, and can it name a comparable contract it has run for three years or more? A supplier that has held a single site for 3.5 years across four service lines has told you more than a revenue figure ever will.

Which parts of the UK are covered?

Ascent Onsite Group operates UK-wide from a Coventry head office (Unit 4 Ground Floor, The Cobalt Centre, Siskin Parkway East, Coventry CV3 4PE), with local teams on each site and one central operations desk. Live operations run across Birmingham, Manchester, Leeds, Bristol, Nottingham and the wider Midlands corridor.

For any national enquiry, the coverage answer should be given per site, not per country. Ask the supplier to confirm coverage and a mobilisation plan for each specific location before signing. "Nationwide" on a website means nothing until it is mapped to your site list.

What has changed in UK procurement for 2025 to 2026?

Three things. The Procurement Act 2023 went live on 24 February 2025 and replaced MEAT (Most Economically Advantageous Tender) with MAT (Most Advantageous Tender), which lets quality and social value outweigh price. PPN 002 and its updated Social Value Model became mandatory for in-scope central government procurement on 1 October 2025, carrying a minimum 10% evaluation weighting, and many local authorities set 20 to 30%. The Building Safety Act regime, through the Building Safety Regulator and its gateway process, has tightened dutyholder accountability and lengthened approval timelines on higher-risk buildings.

The practical effect for buyers of site services: a supplier who cannot produce carbon reporting, apprenticeship numbers and Real Living Wage evidence in the format the Social Value Model expects is losing scoreable points before their price is read.