How to start a window cleaning business in the UK (2026 guide)

Window cleaning is one of the most accessible trade businesses to start in the UK — low barriers to entry, minimal licensing requirements, and a customer base that needs the service on a recurring monthly or six-weekly basis. Unlike many trades where you chase new customers for every job, a well-built window cleaning round generates predictable recurring income from the same customers month after month. A solo operator running a water-fed pole system with a van, working five days a week across a compact geographic area, can realistically generate £40,000 to £60,000 per year within two to three years of starting. This guide covers everything you need to get started, build a sustainable round, price your work correctly, and grow from sole trader to a team operation if that is your goal.

Startup Costs — Water-Fed Pole vs Traditional

The choice between a traditional ladder-and-squeegee setup and a water-fed pole (WFP) system is the first major decision for any new window cleaning business, and in 2026 the WFP system is the clear choice for building a domestic round. Working at height from ladders carries significant manual handling and fall risk, requires third-party access agreements for some properties, and is slower per property than pole work once you are trained. A water-fed pole system — where purified water is pumped through a telescopic carbon fibre or aluminium pole and leaves windows streak-free as it dries — allows you to clean most domestic properties from ground level, safely and significantly faster than ladders. A beginner WFP setup with a 35-litre pure water tank, a mid-range carbon pole to 30 feet, a van-mounted trolley, and a resin filter system for producing pure water costs £1,500 to £4,000 depending on brand and specification. Premium setups with larger tanks, multiple poles, and a van-roof racking system run to £5,000 to £8,000. A reliable second-hand van suitable for window cleaning — a Transit Connect, Berlingo, or similar — costs £5,000 to £15,000 depending on age and mileage. Total startup costs for a properly equipped WFP window cleaner are typically £8,000 to £20,000, making this one of the lower-cost trade businesses to set up professionally.

Building a Round — Door-to-Door, Leaflets, Google and Canvassing

Building a window cleaning round from scratch is primarily a canvassing exercise, and the pace at which you build it determines how quickly you become profitable. Door-to-door canvassing in your target streets — knocking in the early evening when householders are home, introducing yourself, and asking if they have a regular window cleaner — is still the most efficient way to build a geographically compact round because it lets you target specific streets and postcodes. A confident canvasser with a clear pitch and competitive pricing can convert 10 to 20 per cent of doors answered, and a day of canvassing can add 5 to 15 new regular customers. Leaflet drops in target streets convert at a lower rate — typically 0.5 to 2 per cent — but can cover more ground and work passively alongside canvassing. A Google Business Profile with your service area set correctly and a few early reviews will generate inbound enquiries from homeowners searching for a local window cleaner, and these inbound leads tend to be the easiest to convert because the customer is already motivated. Facebook community groups and local Nextdoor posts are a free channel worth using in the early months. The key principle in round building is geographic density: build in one area at a time, get streets full before moving to the next, and avoid the trap of accepting customers spread across a wide area that eats your day in travel time between jobs.

Pricing a Window Cleaning Round

Window cleaning pricing is driven primarily by the time each property takes, not by a per-square-metre calculation. A semi-detached 3-bed terrace with a standard set of front and back windows and a conservatory takes 15 to 25 minutes to clean with a water-fed pole and prices at £10 to £15 per visit on a monthly frequency. A 4-bed detached with multiple bay windows, an orangery, and a larger footprint takes 25 to 40 minutes and prices at £15 to £25. A large detached or country house with extensive glazing can command £30 to £60 per clean. Commercial contracts — shops, offices, pub frontages, and industrial units — vary enormously but a small retail unit on a fortnightly schedule typically runs £50 to £200 per month. Office blocks and retail parks requiring access equipment or multiple cleaners can generate £500 or more per visit. Commercial contracts are higher value but require more formal tender processes and often have longer payment terms. When starting out, focus on building a dense domestic round and treat commercial enquiries as an opportunistic add-on. Frequency matters: monthly cleaning at a slightly lower per-visit price is preferable to quarterly at a higher price, because monthly cleans keep the glass cleaner, take less time per visit, and lock in the recurring relationship more reliably.

Insurance and Registration

Window cleaning does not require a trade licence in the UK, but insurance is non-negotiable and clients increasingly ask for evidence of it before committing to a regular slot. Public liability insurance — covering you if you damage a customer's property or cause injury to a third party — costs £100 to £250 per year for a sole trader window cleaner at standard coverage limits of £1 million to £5 million. Increase to £5 million or £10 million if you are targeting commercial contracts, as many commercial clients specify a minimum liability limit in their supplier requirements. If you employ anyone, even a part-time assistant, employer's liability insurance becomes a legal requirement and costs an additional £150 to £400 per year. Registering as self-employed with HMRC is required within three months of starting to trade and carries a £100 penalty if missed. Open a separate business bank account from day one — it keeps your accounting clean, simplifies self-assessment, and looks more professional when commercial clients pay by bank transfer. Most window cleaners operate as sole traders and file a self-assessment tax return annually — if your turnover exceeds the VAT threshold (£90,000 in 2026) you will need to register for VAT, which can affect your pricing competitiveness on domestic work where clients cannot reclaim VAT.

Recurring vs One-Off Work and Scheduling Software

The commercial model of a window cleaning business depends entirely on recurring work, and the operational challenge as your round grows is managing the scheduling of recurring visits without missing customers, double-booking slots, or losing track of who is due when. A round of 50 customers is manageable with a spreadsheet. A round of 150 customers across multiple days and frequencies requires proper software. Window cleaning round management software or a field service platform lets you set each customer as a recurring job — monthly, six-weekly, or quarterly — and generates a daily job list automatically. Customers who request a skip or reschedule can be flagged and rescheduled without disrupting the rest of the round. Payment tracking is the other critical operational need: most domestic window cleaning customers pay by cash on the day, bank transfer after the clean, or through GoCardless direct debit. Direct debit is the most operationally efficient payment method — it eliminates the need to knock and collect, reduces non-payment, and gives you predictable monthly cash flow from your recurring customer base.

Growing from Sole Trader to Small Team

The natural growth path for a window cleaning business is to build a round to capacity as a sole trader — typically 120 to 200 regular customers depending on property mix and geography — then bring in a first employee or subcontractor to handle the overflow while you continue building new customer acquisition. The economics of growth depend on whether you can maintain the density and efficiency of your existing round while adding a second operative. The most common model is to hire a first employee at around £11 to £14 per hour, allocate them the lower-value or more time-consuming properties, and use your own time for sales, canvassing, and the higher-value commercial jobs. Taking on a business partner who brings their own round and equipment is an alternative growth route that avoids the employment overhead and combines two established customer bases. Whatever growth model you choose, the profitability of a window cleaning business at scale depends on keeping the travel time between jobs low, maintaining customer retention above 85 per cent per year through reliable and consistent service, and collecting payment reliably without the cash-in-hand overhead that drags on many window cleaning operations.

Trade2Base for Window Cleaning Round Management

Trade2Base handles the recurring scheduling and payment collection that make a window cleaning round operationally efficient at scale. Each customer is set up as a recurring job at their preferred frequency — monthly, six-weekly, or quarterly — and the daily job list is generated automatically. GoCardless direct debit integration collects payment after each clean without manual invoicing or cash collection. Customers who skip a visit are rescheduled with a single click and the payment is adjusted automatically. The customer portal lets clients confirm upcoming visits, request rescheduling, and view their payment history — reducing inbound calls and text messages that break up your working day. As your round grows, Trade2Base scales with you: adding a second operative and splitting the round across two schedules takes minutes rather than a manual spreadsheet rebuild.