Police have received 11 reports of burglaries over a period of about a month.
The incidents mainly took place between the hours of 11am and 4pm when people were out at work.
Areas targeted to date include Thibet Road, Scotland Hill, Wellington Close, Mason Place and Yorktown Road.
Thieves have so far stolen jewellery and cash.
Police believe the culprits are knocking on front doors and pretending to buy or sell bric-a-brac to determine if anyone is home.
The homes targeted tend to have secluded back gardens.
One burglary which took place in Thibet Road between November 1 and November 4 when the householders were away for the weekend.
The burglars gained entry to the house by forcing a rear window and stole jewellery to the value of £120.
The last burglary reported to the Police took place on November 5 at a house in Wellington Terrace between the hours of 5pm and 7.30pm when the occupants were also out.
A rear window was forced open with a screwdriver and the intruders caused £700 worth of damage.
So far nothing has been reported as stolen.
Police suspect a gang of teenagers is responsible for the "amateur" break-ins because many of the burglaries took place during school holidays.
PC John Gildersleeves, of Crowthorne police, gave a strong warning to Sandhurst residents at a police liaison meeting last Wednesday (November 6).
He said: "This is very unusual for Sandhurst. Although we are still well below the national average for burglary related offences, we are taking this spate of crime very seriously."
PC Paul Musson said after the meeting: "We urge residents who are at home during the day to be extra vigilant and report any unusual or suspicious door-knockers to the police."
If you have any information please contact the Burglary Squad at the Burglary Investigation Unit at Maidenhead on (01344) 862626 ext 7335675 or contact Crimestoppers anonymously on 0800 555111.