First of all, why didn't you have the contractor clean the spots that they were responsible for? Secondly, why did you just get some degreaser and do it yourself. Don't pay the bill until the fix the problem!

I have used no pressure for both house washing and driveway and have found him to be very good. I had an oil stain on the end of the drive from a garbage bag. Nothing he did or I did before him could remove it. It eventually faded but I do not think anyone could get it out. The driveway looked beautiful after he was finished, so I have no qualm about using his services.

Used them many times and was always satisfied with their work.

I once used a product called "Pour-N-Restore" oil stain remover from Lowes and it worked pretty well. It is a white liquid that you pour on the stain. In a few hours, the liquid turns to a powder and you just sweep it away. No scrubbing. I don't know how well it would work on an old stain.

First, why didn’t you have the contractor that caused the oil stain take care of cleaning it. Second, there is always two sides to the story.

PULL IT OUT by Chomp
 

This is the only thing that works to get oil stains out. Buy it at Amazon

CHOMP! Concrete Oil Stain Remover: Pull It Out Removes and Cleans Oils, Greases from Garage Floors & Driveways 32 oz.
4.0 out of 5 stars 6,298

Very simple solution to entirely clean an oil spot off of your cement driveway. The day before it rains pour a very small amount of lemon Joy liquid detergent on the spot, after it rains the spot is gone.

I've tried every other kind of cleaner but nothing else works!

I usually buy a couple of cases at a time because like everything else in life, when you go to buy more it has been discontinued and replaced with some cheap crap product.

The contractor should have cleaned up the oil stain

Use kitty litter. Real cheap. Put on oil spot brush in with foot or broom. Let stand for a day. Sweep up and wash. Been doing this for years back in my car racing years. Tried and proven method.

I used No Pressure House Wash for years and years and always had excellent service and results. And their fee is very reasonable. Many friends use them and are always happy with their work. Sorry you had a bad result, and I’m surprised they didn’t address your concerns!

Like No Pressure
 

I have been using No Pressure House Washing for years. Other than one surly worker (who no longer comes to my home) I have been very pleased with them. I find them to be responsive and pleasant to deal with.

Oil stain
 

I found that covering the oil stain with liquid laundry detergent will remove the oil stain. Apply in the morning on a sunny day and the stain will be gone by morning. It works on concrete, I have never tried it on a painted driveway.

I had a Fed X driver back into my truck as I watched. They didn't say a word until I went out and confronted her. She said it was just a bump. It was a good thing I have a tow hitch on it.

I have used “Oil Solv”. Not sure where to buy it now but it took out stains in concrete up north. It is a petroleum solvent. Very strong stuff.

I have used No Pressure House Cleaners twice a year for over 15 years. Never a problem