For cleaning firms wanting steadier work
How to Win Public Sector Cleaning Contracts
Published by BidSquirrel · checked against legislation.gov.uk and gov.uk · last reviewed June 2026
Commercial cleaning is a tough market - price-driven, easily undercut, and full of contracts that can move on a month's notice. Public-sector cleaning is a different proposition: schools, NHS sites, council buildings and social housing need cleaning every day, the contracts are longer and recurring, and the buyer cannot simply drop you for a cheaper quote next week.
For a small or mid-sized cleaning firm, public-sector work can turn a feast-and-famine order book into a stable base load. This guide explains where the contracts are, what evaluators actually reward, and how to win them.
Where public-sector cleaning work is
Almost every public building needs daily cleaning, and most of it is contracted out. The buyers are spread across the public estate, and the contracts range from a single school to a council-wide or multi-site portfolio:
- Schools, academy trusts and colleges - daily cleaning, often the most accessible entry point
- NHS trusts and GP estates - including specialist healthcare and infection-control cleaning
- Councils - offices, leisure centres, depots and public buildings
- Social housing - communal areas, voids and estate cleaning
- Universities, blue-light and central government estates
What buyers actually score (and it is rarely just price)
Public cleaning contracts are usually awarded on the most advantageous tender, so quality, social value and deliverability carry real weight alongside price. Buyers look hard at how you will mobilise, manage staff and hold standards, and increasingly at social value - paying the real Living Wage, local employment and training. Accreditations such as BICSc, CHAS and ISO 9001/14001 are commonly asked for, and infection-control competence matters for healthcare work.
TUPE is the factor that catches new bidders out. When a contract changes hands, the existing cleaning staff usually transfer to the new provider under TUPE - so you inherit a team, their terms and their wage costs. Understanding the incumbent staffing, and pricing it honestly, is often the difference between a profitable contract and a painful one.
How a small cleaning firm wins
Start where the contracts are smallest and most local - a single school or council building, often let as sub-£30k work or through a regional framework such as ESPO or YPO. Get your accreditations and method ready, register on the portals your local buyers use, and respond fast and specifically: a buyer scoring a cleaning bid wants realistic staffing, clear supervision and a credible mobilisation plan, not generic promises of "excellence".
Recurring contracts reward incumbents, so the first win is the hard one. Deliver it to standard and you are positioned to retain it, expand into the buyer's other sites, and bid the larger multi-site contracts from a position of evidence.
Frequently asked questions
What is TUPE and why does it matter for cleaning contracts?
TUPE (the Transfer of Undertakings regulations) means that when a cleaning contract transfers to a new provider, the existing staff usually transfer with it on their current terms. For a bidder it means you inherit a team and its wage costs, so you must understand the incumbent staffing before you price - it is the most common reason a won contract turns out unprofitable.
Do I need BICSc or ISO accreditation to win public cleaning work?
They are frequently requested and clear a common screening hurdle, though not every contract mandates them. BICSc (cleaning competence), CHAS (health and safety) and ISO 9001/14001 (quality and environment) are the accreditations public cleaning buyers ask for most often.
Are public cleaning contracts more secure than commercial ones?
Generally yes. They run longer, pay on reliable 30-day terms, and cannot be cancelled simply because a competitor quotes lower mid-contract. That stability is the main reason cleaning firms pursue public-sector work even where margins are tighter.
See the cleaning contracts live near you
BidSquirrel scans every GB source for cleaning opportunities - schools, NHS, councils and housing - scores each against your business and patch, and drafts the bid with you. Browse every live tender free to see what is open now.