Insulation and Windows for Tenants in Sweden

Maintenance & repair duties 2 min read · published September 11, 2025

As a tenant in Sweden, it is common to wonder who is responsible for insulation and windows, especially when drafts, moisture or high heating costs occur. This guide clearly explains the difference between the landlord's and tenant's maintenance responsibilities, how to document defects, and the steps you can take to request repairs or improvements. It describes when you can demand action, how to fill in and submit relevant applications to the Rent Tribunal, and practical tips to reduce heating costs and prevent moisture damage. The information refers to applicable rules in the Land Code and how to find official support in the process.

Who is responsible?

As a rule, the landlord is responsible for keeping the property and apartment to a basic habitable standard, including major window work and the building's insulation according to the Land Code (Chapter 12).[1] The tenant may be responsible for minor upkeep, such as replacing worn sealing strips or cleaning vents, if this is stated in the lease.

The landlord is usually responsible for keeping the apartment in a habitable condition.

What you can do as a tenant

  • Document damage with photographs and dates, and keep a simple log of when problems were discovered.
  • Report defects in writing to the landlord and request a written response or confirmation.
  • Request repair or improvement promptly if there is moisture, mold, or serious heat loss.
  • Save receipts if you have paid for necessary minor measures that the landlord should later reimburse.
  • If a dispute remains, you can take the case to the Rent Tribunal for review.
Always keep receipts and photographs as evidence.

Documentation and deadlines

Photos, dates and written communication are crucial if the matter proceeds. Do not rely solely on verbal promises; ask for written confirmation of planned actions. If the landlord does not remedy serious defects, you can apply for review at the Rent Tribunal.[2]

Respond to legal notices within deadlines to avoid losing rights.

FAQ

Who pays for a new window?
Normally the landlord is responsible for replacing entire windows or major window works, while the tenant is responsible for minor maintenance such as sealing strips.
Can I demand a rent reduction for poor insulation?
If the defect affects the apartment's condition you can request remedy or compensation; if parties do not agree the Rent Tribunal can decide the case.[2]
What happens if the landlord does not comply with a Rent Tribunal decision?
If a party does not comply with a decision, the case can in some situations be forwarded to the Enforcement Authority for enforcement.[3]

How to

  1. Gather evidence: take photographs, note dates and save receipts.
  2. Notify the landlord in writing and explain the defect and which remedy you request.
  3. Follow up if nothing happens within a reasonable time and send a written reminder.
  4. If you do not reach a solution, apply to the Rent Tribunal with documentation and previous communication.[2]
  5. If the decision is not enforced, contact the Enforcement Authority for possible execution.[3]

Help and Support / Resources


  1. [1] Riksdagen — Land Code (1970:994), Chapter 12
  2. [2] Domstol.se — Rent Tribunal and e-services
  3. [3] Kronofogden — Enforcement and collection
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Sweden

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.