Try £140 and spend at least 3 hours on it.
Do you pre-vacuum at all? Do you get the crevice tool down the sides, fish out the coins and give them back to the customer? (good PR)
Do you carry some fans or air movers with you to dry out the parts you've cleaned whilst you're working on the rest?
I'm not being funny mate but after an hour of a 3-pc suite clean you're off down the road. Meanwhile, I've set up my kit, got my machine filled, had a chat about the weather with the customer and just about finished vacuuming.
Think of it this way. If you cleaned three 3-pc suites a day at £45 each, you'd have £135. I'm sure that's all you could manage, what with driving, setting up, packing away etc.
Now imagine charging £140 for a clean plus e.g. £60 for protector. You've been there for 4 hours or so and paid attention to every minute detail. Customers appreciate someone working for them who doesn't appear rushed, is seen to take his time and pay attention to the job, rather than looking at his watch every 5 minutes and thinking about how much he's earning.
That's a better, easier, LESS COSTLY day than running around like the proverbial fly with the blue bum. Your net profit will go up significantly.
This is what you have to aim towards. I get the feeling you've had a few leaflets through your door in the last couple of years quoting these idiotic low prices and started up thinking this is the price range you should be working in. Those leaflets are complete bull, or even worse they're genuine prices that someone else has started up charging because they think that's the going rate.
Sorry to be so direct but I think a few of us more experienced guys need to take off our kid gloves and tell it like it is for a change. It's our duty to the industry.