How to Price Window Cleaning: Labour, Materials and Margin Guide

Summary

Window cleaning is one of the most competitive trades to price in the UK because the barrier to entry is so low — a bucket, a squeegee and a bike or van gets someone started, and cash-in-hand informal operators sit alongside VAT-registered multi-round businesses in the same postcode. That spread confuses customers and tempts newer window cleaners into under-pricing to win the round, which is the single biggest mistake in this trade: window cleaning only becomes profitable at scale, through a tight, well-sequenced round, not through one-off jobs priced to compete with the cheapest operator on the street.

The trade has also changed technically. Traditional squeegee-and-ladder cleaning is still common on ground-floor and bungalow work, but the water-fed pole (WFP) system — pure or deionised water pushed through a pole-mounted brush, left to dry spot-free without a chamois — has become the standard method for most residential rounds because it reaches upper-storey windows from the ground without a ladder, which is both faster and removes most of the Work at Height risk in one move. Understanding which method suits which job, and pricing the access risk correctly rather than ignoring it, is what separates a window cleaner still doing the job in five years from one who's had a bad fall or a bad insurance claim.

The third pricing dimension unique to this trade is frequency. Window cleaning is overwhelmingly a repeat, contracted service — most residential rounds are 4-weekly, 6-weekly or 8-weekly standing bookings — and the economics depend on minimising drive time and maximising windows-cleaned-per-hour across a tight geographic cluster of regular customers. A window cleaner who prices every job in isolation, without thinking about round density and frequency discounting, will consistently underperform one who prices jobs as part of a planned round.

Key Facts

• Traditional squeegee/ladder method — chamois or squeegee, ladder access; works well for ground and first-floor windows and remains necessary where WFP access is physically blocked (e.g. enclosed courtyards)
• Water-fed pole (WFP) system — pure/deionised water (near-zero total dissolved solids, TDS) pushed through a telescopic pole to a brush head; dries without streaking because it contains no minerals, so no wiping pass is needed
• WFP reach — standard poles reach 20-40ft (roughly 6-12m), covering most 2-3 storey domestic properties; backpack or trolley-fed systems extend working time between refills
• Water purification methods — reverse osmosis (RO), deionisation (DI), or combined RO/DI; RO/DI combined gives the lowest TDS and best finish in hard-water areas
• Work at Height Regulations 2005 — apply to any cleaning done from a ladder, tower or MEWP; a ground-based WFP system is not "work at height" in the regulatory sense because the operator's feet never leave the ground — a major part of WFP's commercial appeal
• Ladder use under WAH Regs — legitimate for short-duration, low-risk work only; a full ladder-based round cleaning dozens of upper-storey windows a day is exactly the pattern the regulations expect to be avoided or prevented with a better method
• MEWP / cherry picker access — needed for genuinely high-access work beyond WFP or ladder reach (commercial multi-storey, some conservatories, atria); requires an IPAF-trained operator and adds significant plant cost
• Public liability insurance — £1-£5 million cover is the industry norm; many commercial clients and management companies require proof of a minimum £2m or £5m policy before awarding contract work
• Per-visit vs contract pricing — most residential work is priced as a standing per-visit rate on a fixed frequency (4, 6 or 8-weekly), not hourly; one-off cleans command a premium because there's no guaranteed repeat revenue to smooth the pricing against
• Domestic vs commercial pricing models — domestic is priced per property (often per window count band); commercial is more often per hour, per day, or per contract based on a site survey
• Frame, sill and door cleaning — a common upsell alongside glass; typically £5-£15 extra per visit, priced separately because it takes meaningfully longer and not every customer wants it each visit
• Conservatory roof cleaning — a distinct, higher-margin job from wall cleaning; needs a WFP roof brush head or ladder/tower access, usually quoted as a separate line
• Skylight and rooflight cleaning — often inaccessible to a standard WFP angle and may need a ladder, tower or MEWP; price as an add-on, not an assumed inclusion
• First-clean premium — a property uncleaned for months or years (dead insects, cement splash, hard water staining) takes substantially longer than a maintained round visit; quote it separately
• Round density economics — profitability comes overwhelmingly from minimising drive time between jobs; a tightly clustered round is far more profitable per hour than the same houses spread across a town, at an identical per-job price
• VAT registration threshold — £90,000 turnover (2024/25 threshold); most sole-trader rounds sit below this, but a growing multi-employee round can cross it faster than expected because the trade scales by adding rounds, not by raising per-job price

Quick Reference Table

Detailed Guidance

Traditional squeegee and ladder cleaning vs water-fed pole systems

Traditional cleaning — a bucket of water and detergent, an applicator to wet the glass, then a squeegee to strip it dry with a chamois for the edges and frames — remains the right method for ground-floor and single-storey work, and for detailing a WFP pass doesn't fully cover (stubborn cement splash, paint flecks, close frame work). It's fast per window at ground level and gives direct tactile feedback on problem areas.

Water-fed pole systems have become the dominant method for the rest of the round because they solve the access problem structurally rather than through equipment (ladders, towers) that still carries fall risk and setup time. A WFP pushes pure or deionised water through a soft brush head on a telescopic pole, scrubbing the glass and frame, then rinsing with water so pure it dries completely clear without streaking — no squeegee or chamois pass needed. Because the operator stays on the ground throughout, WFP removes the ladder-related fall risk that dominates traditional high-access cleaning, and is faster once a round is built around it, since there's no ladder to reposition between windows.

The trade-off: WFP struggles with very close-up detail work and needs a water source (onboard tank, backpack, or trolley-fed from a van tank) that limits time before a refill. Most professional rounds run a hybrid — WFP for the bulk of the glass and upper storeys, traditional squeegee work for ground floor, shopfronts and detailing.

Work at Height Regulations 2005 — how they apply by method

This is the genuine safety-critical regulatory distinction in this trade, and it drives both method choice and insurance/training requirements:

• Ground-based WFP — because the operator's feet never leave the ground, this is not "work at height" under the regulations, even though the pole itself works at height. This is the core commercial argument for WFP: it removes the regulatory and physical risk category entirely for the vast majority of domestic and low-rise commercial work.
• Ladders — legitimate under the WAH Regs hierarchy (avoid, prevent, minimise) only for short-duration, low-risk tasks. Sustained, repeated ladder work across a whole round is precisely the pattern the regulations expect a business to move away from toward a safer method — see working at height regulations for the full hierarchy.
• Cherry picker / MEWP — required where high-access work exceeds both ladder and WFP reach: taller commercial buildings, atria, awkward-angle glazing a pole can't reach cleanly. Requires an IPAF-trained operator, a ground-condition assessment, and (for boom-type platforms) a harness clipped to the designated anchor. This plant and training cost must be reflected in commercial quotes, not absorbed.
• Scaffold/rope access — for the most demanding commercial high-rise work; requires specialist contractors and sits outside standard window cleaning pricing.

The practical rule: any job doable entirely with ground-based WFP should be priced at the lower, standard-access rate. Any job that genuinely needs a ladder, tower or MEWP should have that method's real cost (time, equipment, and for MEWP, hire cost) built into the price — not quoted as a WFP job with a bit more climbing.

Public liability insurance

Public liability insurance is a baseline business cost in window cleaning, not an optional extra — a dropped bucket, a scratched conservatory roof, or a slipped ladder causing damage to a customer's property or a passer-by are all realistic claims. £1 million cover is the practical minimum most window cleaners carry; £2-£5 million is increasingly the norm and is often a contractual requirement for commercial work, management companies, and some domestic customers who ask to see proof of cover before booking.

Pricing models: per-visit, contract and one-off

Most residential window cleaning is priced as a standing per-visit rate tied to a fixed frequency — 4-weekly, 6-weekly or 8-weekly are the most common UK cycles — rather than as an hourly rate. This suits both sides: the customer gets a predictable recurring cost, and the window cleaner gets a plannable, repeat-revenue round that justifies investing in WFP equipment and building route density.

One-off cleans should be priced at a premium over the contract rate — typically 40-60% higher — because there's no guaranteed repeat visit to spread the setup and travel cost against, and a one-off customer is statistically more likely to have a neglected property that takes longer to clean. Quoting a one-off at the contract rate undercuts the round pricing and trains customers to expect it as the norm.

Commercial pricing works differently — it's more often quoted per hour, per day, or per contract following a site survey, because glazing area, access complexity and frequency (some sites need daily or weekly cleans) vary far more than a standard domestic property.

Frame, sill and door cleaning as an upsell

Glass-only cleaning misses a visible part of the job: UPVC or timber frames and sills accumulate green algae staining, black mould in corners, and general grime customers notice as much as dirty glass, particularly on white UPVC. Offering frame, sill and door cleaning as a priced add-on (typically £5-£15 per visit depending on property size) captures this revenue rather than absorbing the extra time into the glass-only price. It's also a natural conversation starter for spotting frame damage or failed seals that could lead to a referral for repair or replacement work — see window replacement pricing guide and upvc window repair.

Round density and frequency-based discounting economics

The core profitability driver isn't the price per window — it's minimising unproductive drive time between jobs. A round of 20 houses clustered on two adjacent streets might be completed in a half-day with almost no drive time; the same 20 houses scattered across a town, each still taking the same time to clean, could take a full day or more for identical cleaning revenue.

This is why window cleaners frequently offer a modest discount (commonly 10-20%) for a regular contracted frequency versus the one-off rate, and why rounds are built and priced geographically rather than customer-by-customer: filling a gap on an existing tight round is close to pure margin, while accepting an isolated customer a long drive away, even at a "good" price, can be a net loss once travel time is accounted for. When quoting a new customer, factor in whether they sit inside an existing round's geography or represent a standalone trip — the correct price for the same house can genuinely differ on this alone.

Pricing worked example: 3-bed semi, WFP contract clean vs one-off first clean

Contract visit (glass only, WFP, part of a dense existing round): water/consumable cost £0.60, brush head wear £0.40, labour 15 minutes at a £15/hr internal cost rate (£3.75), drive-time allocation on a tight round (£0.75), admin/round-management overhead (£0.50). Total cost to the tradesperson: £6.00 per visit. Applying the business's markup — reflecting not just this visit but overall overheads (insurance, equipment capital cost, vehicle, marketing) and profit margin — gives a quoted price to the customer of roughly £18-£20 on the standard 4-6 weekly cycle.

One-off first clean, neglected property (4-bed detached, over a year since last clean, algae staining and cement splash, WFP plus hand detailing): water/consumables £1.20, extra brush wear £0.80, labour 55 minutes at the same £15/hr cost rate (£13.75), standalone travel (£5.00), admin (£1.00). Total cost to the tradesperson: £21.75. With no round-density benefit and genuinely higher time cost, the business applies its one-off premium rather than contract-rate margin, giving a quoted price to the customer of roughly £55-£65 — consistent with the first-clean band above.

Both examples show the same rule: the Quick Reference Table reflects quoted prices to the customer, never the tradesperson's raw cost. Keep the two numbers separate when building a quote — most of a window cleaning round's real cost is labour, drive time and overhead, not consumables, so a customer-facing price should never be derived by simply adding a small margin to the visible material cost alone.

Frequently Asked Questions

Is water-fed pole cleaning actually better than traditional squeegee cleaning, or is it just marketing?

It's a genuine method change for most upper-storey and multi-window jobs — the core advantage is that the operator never leaves the ground, which removes the Work at Height risk category for that work entirely and is faster once a round is built around it. Pure/deionised water also leaves a genuinely streak-free finish because there are no dissolved minerals left behind to dry as spots. The trade-off is that WFP is less effective for very close detail work and needs a water source that limits time between refills, which is why most professional rounds combine WFP for the bulk of the work with traditional squeegee cleaning for ground floor, shopfronts and detailing.

Do I need water system certification to run a WFP round commercially?

There's no statutory certification requirement to operate a WFP system commercially in the UK, but maintaining low total dissolved solids (TDS) in the water — typically tested with a simple TDS meter and aimed at close to 0 parts per million — is a practical quality standard the trade holds itself to, because mineral-bearing water leaves the streaking the whole method is meant to avoid. This is a quality/reputation matter rather than a regulatory one.

Why do window cleaners charge less per visit on a contract than for a one-off clean?

The per-visit contract price is built on the economics of a repeat, geographically dense round — low drive time, predictable revenue, and equipment/vehicle costs spread across many visits — while a one-off clean carries the full weight of travel time, no repeat-revenue certainty, and often a longer clean on a less-maintained property. The contract rate isn't the "real" price with a surcharge bolted on for one-offs; both are correctly costed for what they involve, and a customer wanting the contract rate without committing to a booking is asking the cleaner to absorb a cost the pricing structure is designed to avoid.

How do I know when a job needs a MEWP instead of just a longer water-fed pole?

Standard WFP systems reach roughly 20-40ft (about 6-12m), covering most 2-3 storey properties. Beyond that reach, or where the water jet can't get a clean, effective angle on the glass (some atria, deeply recessed windows, complex commercial facades), a MEWP or specialist access method becomes necessary rather than optional — pushing a pole beyond its effective reach produces a poor clean and risks equipment damage, it doesn't just take longer. Any borderline job should be site-surveyed before quoting, because getting this wrong means either an unsafe method or a quote that doesn't cover the real access cost.

Is window cleaning worth VAT-registering for once the round grows?

It depends on growth trajectory, not a fixed rule — a single-operator round often stays comfortably under the £90,000 VAT registration threshold (2024/25 figure) for years, but a business that scales by adding vans and employees rather than raising per-job price can cross the threshold faster than expected, because revenue scales with round count. Crossing it means charging VAT on top of the quoted price (a real consideration for domestic customers, who can't reclaim it, versus commercial customers, who often can) — take this to an accountant well before turnover approaches the threshold, not after crossing it.

Regulations & Standards

• Work at Height Regulations 2005 — governs any window cleaning access method where the operator leaves the ground: ladders, towers, scaffold, or MEWP. Requires the avoid/prevent/minimise hierarchy; ground-based WFP work sits outside this regulation's scope because the operator's feet stay on the ground.

• Work at Height Regulations 2005 — ladder provisions — permit ladder use only for short-duration, low-risk tasks; sustained, repeated high-access window cleaning across a full round is the pattern the regulations expect businesses to move away from via a safer method.

• LOLER (Lifting Operations and Lifting Equipment Regulations 1998) — applies to MEWP/cherry picker equipment inspection and maintenance where used for high-access commercial cleaning.

• Wildlife and Countryside Act 1981 — relevant where window/frame cleaning disturbs active birds' nests in eaves, gutters or wall cavities near the work area.

• VAT Act 1994 — general VAT registration threshold (£90,000, 2024/25 figure) applies to a growing window cleaning business the same as any other trade.

• Work at Height Regulations 2005 — HSE — legal duties for any window cleaning access off the ground.

• HSE: Working at height — a brief guide (INDG401) — practical guidance on ladder use and access method selection.

• Federation of Window Cleaners (FWC) — UK trade body guidance on training, insurance and WFP best practice.

• GOV.UK — VAT registration thresholds — current VAT registration threshold figures.

• IPAF (International Powered Access Federation) — MEWP operator training standards relevant to high-access commercial window cleaning.

• working at height regulations — full Work at Height Regulations 2005 hierarchy, ladder rules, scaffold/tower/MEWP requirements

• gutter cleaning pricing guide — comparable ground-based vs ladder/access pricing model for another recurring exterior maintenance service

• handyman hourly rate pricing guide — hourly/day-rate pricing model comparison for multi-task exterior maintenance work

• upvc window repair — frame and seal repair work often flagged during window cleaning