A pensioner's home has been vandalised twice in one week by thugs defacing his house with graffiti.
Alfred White, 82, of Barrow Point Avenue, was disgusted to find the home he shares with his wife had been tarnished with spray paint on November 29.
Five days later the yobs attacked again, leaving tags on his walls and garage.
Distraught Mr White said: "I am 82. I could do without all this hassle. I have lived here for 34 years and I think it is disgusting that people just think they can destroy someone's property. This is my home.
"A new generation of hooligans are deliberately setting out to make people's lives a misery. Why are they suddenly picking on us?"
Ruth Boff, of The Pinner Association, is outraged by the graffiti attack and hopes officers will be able to identify the culprits who are wrecking people's homes, fences and garages.
She said: "The Pinner Association has launched a war on graffiti artists.
They have previously wrecked buildings all over the village, including West House in Pinner Memorial Park. It is one thing seeing a public building destroyed, but someone's house is awful.
"It is mindless. The best thing is to get the graffiti cleaned off as soon as possible. Harrow Council is quite good with sorting this out, which is reassuring. But we are well aware there is a problem with graffiti in Pinner and there has to be a crack-down."
Graffiti-tagging is often spraying an abbreviated name or nickname of a gang or individual and is a form of criminal damage.
Sergeant Steve Nicholson, of Pinner Safer Neighbourhood Team, says there has been a spate of graffiti in the past couple of weeks but that the police will not tolerate criminal damage.
He said: "I do not believe that graffiti is art. It is criminal damage. Nobody in Pinner wants to see tags across the village. And it is not fair for the victims.
"We are working with The Pinner Association and Harrow Council to try to stop the culprits. We just want to stamp out graffiti in Pinner."