- Why window cleaners are sitting on an untapped tool
- The prompts that get used, not just saved
- A worked example: the Tuesday afternoon rain problem
- The uncomfortable part nobody tells you
- Step-by-step: building your own prompt from scratch
- Seasonal content you're probably not using
- What not to let ChatGPT write
- Frequently asked questions
- Further reading
The short version: ChatGPT won't clean a single window, but it will write your quotes, your review requests, your seasonal offers and your social posts faster than you can type them yourself. The prompts below are built for a one-van or small-team window cleaning business, not a marketing agency, and I've included the exact wording to copy, paste and adjust.
Why window cleaners are sitting on an untapped tool
Most window cleaners I come across through my work with small service businesses run the whole operation from a phone: booking jobs, chasing payments, replying to messages between customers. There's no time to sit down and write a real Facebook post or a polite follow-up email when it's raining and you've got six jobs to get through before 3pm.
That's exactly where ChatGPT earns its keep. You're not using it to run your business. You're using it to do the fifteen-minute writing jobs that currently take you forty-five minutes, or that you just never get round to doing at all.
The prompts that get used, not just saved
I'm going to give you prompts in categories, because a window cleaning round needs different writing at different points: getting new customers, keeping existing ones, and dealing with the admin nobody enjoys.
Quotes and pricing messages
- "Write a text message quote for a customer who wants their 3-bed semi's windows cleaned monthly, including frames and sills. Price is £18 a visit. Keep it under 40 words, friendly, no corporate tone."
- "I've just quoted a new customer £120 for a one-off exterior clean on a detached house with a conservatory roof. Write a short follow-up message to send if they haven't replied after 3 days, without sounding pushy."
- "Write three different ways to explain a price increase from £15 to £18 per visit to existing customers, each one under 50 words, for a WhatsApp broadcast."
Reviews and reputation
- "Write a short, casual text to send a customer after their first clean, asking them to leave a Google review. Mention that it takes two minutes and include a line about how much it helps a small local business."
- "A customer left a 3-star review saying I missed a window. Write a calm, non-defensive reply that apologises, offers to come back free of charge, and sounds like a real person, not a company statement."
Marketing you'll send
- "Write a Facebook post advertising gutter clearing as an add-on service for existing window cleaning customers, priced from £40, for an autumn audience in the UK."
- "Write five short door-hanger leaflet lines offering a free first clean to new customers on a street where I already clean three houses."
- "Give me a list of 10 referral incentive ideas for window cleaning customers who recommend a neighbour, each costing me under £10."
If you want more of these built out, with the exact structure to feed ChatGPT so the output doesn't sound generic, I've written a longer guide on ChatGPT prompts for cleaning companies that covers the wider cleaning trade, much of which transfers straight across to window work.
A worked example: the Tuesday afternoon rain problem
Say you run a two-man window cleaning round covering a market town, about 90 regular customers on a four-weekly cycle, plus one-off jobs picked up through word of mouth. It's a wet Tuesday, you've lost the afternoon, and instead of sitting idle you decide to catch up on marketing you've been meaning to do for three months.
You open ChatGPT and type: "I run a window cleaning business with 90 regular customers on a four-week cycle. I want to fill 10 more weekly slots before spring. Write a WhatsApp message I can send to all existing customers offering them £10 off if they refer a friend who signs up to a regular clean, plus a shorter version I can use as a text."
In under two minutes you've got two usable drafts. You tidy a line or two to sound like you, not a chatbot, send it to your customer list that evening, and by the end of the week you've had 4 referrals. That's not a guaranteed outcome, it's what's realistic when you ask customers who already like your work, rather than hoping they refer you off their own back. The writing was never the hard part, asking was. ChatGPT just removed the excuse of "I don't know how to phrase it."
The uncomfortable part nobody tells you
Here's what most posts on this topic skip over: ChatGPT will not fix a window cleaning business that's underpriced, disorganised, or relying on one bloke's memory for the whole round. If you're charging £12 a visit in an area where £18 is normal, a better Facebook post won't solve that. Writing tools fix communication problems, not pricing problems or scheduling problems.
The other thing nobody says plainly: customers can tell when every message sounds identical. If you copy and paste the same AI-written review request to all 90 customers without changing a word, a handful will notice it reads like a script. The fix is simple and takes ten extra seconds, change one detail each time, their name, their street, the weather that day, so it reads like you wrote it, because in a real sense, you did.
Step-by-step: building your own prompt from scratch
You don't need to memorise anyone's prompt list forever. Here's the structure I'd tell any window cleaner to follow:
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- Step 1: State what you do and who you're writing to. "I run a window cleaning round, writing to an existing customer."
- Step 2: State the situation. "They've just had a late payment, I'm chasing it politely for the first time."
- Step 3: State the tone. "Friendly, not formal, like a text from a tradesperson."
- Step 4: State the length. "Under 50 words."
- Step 5: Ask for 2 or 3 versions, not one, so you can pick the one that sounds most like you.
That five-step structure works for almost any writing task a small service business needs, not just window cleaning, and it's the same approach I'd point someone to if they were considering bringing in real help on AI consultant support for a small business rather than muddling through alone.
Seasonal content you're probably not using
Window cleaning has an obvious seasonal rhythm: spring clean rush, summer maintenance, autumn gutters, and a quiet December where most rounds slow right down. That quiet stretch is a good time to send customers something other than a quote, a light-hearted message, a thank you for the year, or even a nudge toward seasonal household prep. If you're stuck for ideas during that slow period, borrowing structure from something like my advent calendar ideas post isn't as odd as it sounds, the same "one small idea per day" format works just as well for a December customer newsletter as it does for a family countdown.
What not to let ChatGPT write
Keep ChatGPT away from anything involving a specific complaint you haven't read yourself, any pricing decision, and any message to a customer who's upset. Draft a response, read it twice, change the bits that sound stiff, then send it. The tool writes a first draft, you make it sound like the person who knocks on their door.
Frequently asked questions
Can ChatGPT write a full window cleaning quote template?
Yes, give it your price per window type or per visit, the services you include like frames, sills and gutters, and ask for a short template you can fill in per customer. It will produce something usable in one go, you'll just need to add your own numbers.
Will AI-written messages sound fake to customers?
Not if you edit them. The mistake is sending the first draft unchanged to every customer. Swap in a name, a street, or a small personal detail and it reads like you, because the final version is still yours.
Is it worth paying for ChatGPT as a window cleaner?
The free version handles most of what's in this post fine. Only consider paying if you're using it daily for route planning, longer marketing campaigns, or customer email replies at volume, where the faster, more capable paid version saves real time.
What's the quickest win for a window cleaner starting today?
Review requests. Ask ChatGPT for a short text to send after every clean asking for a Google review, send it to your next 10 customers, and see how many reply. It costs nothing and takes five minutes to set up.