It is possible to challenge a service charge accounts.
Does the management company send annual statements detailing what services have been undertaken and the cost incurred?
Does you lease allow for a reserve fund?
Are the services specifically set out in your lease!
This may be of interest:
RICS code of practice: Service charge residentialmanagement Code and additional advice to landlords, leaseholders and agents: 3rd edition (June 2016).
If you follow the link you can download a pdf of the rics code.
This is a detailed guide. If you have issues with service charges and feel that the landlord is making charges but not providing adequate services then if can be challenged. A surveyor can assist you with this.
If there is a provision in the lease for a sinking fund then the landlord can demand that you contribute. It does have a benefit in that it will accumulate over time and can then be used to cover items of large expenditure. This avoids large service charge bills.
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