Request a chimney assessment and renovation quote
E.g.: flexible stainless steel lining, rigid lining of an old flue

Specify the existing or planned appliance, fuel and problem. Supply reports and photographs accessible without climbing onto the roof. First ask whether the flue can be reused and which checks are needed; lining is not an automatic remedy for every defect.
Check whether the flue can be reused
Poujoulat distinguishes lining from creating another system and identifies configurations unsuitable for simple lining. Ask the professional to specify condition, geometry, assessed constraints and necessary work before connection.
Relate sizing to the appliance
The manufacturer identifies the connected appliance as the primary basis for diameter. Provide its model and manual and ask for justification of the selected system. Do not choose a diameter only because it fits the masonry or a material solely by price.
Define work and documents
Specify access, protection, possible removal, connection, roof finish and masonry work. Request applicable checks and documents. AEV distinguishes acceptance, inspection and maintenance depending on equipment; a lining invoice does not automatically validate the entire heating installation.
Indicative prices in Luxembourg
On quotation
The quote should separate assessment, proposed system, connections, access and making good. A per-metre price alone describes neither total cost nor appliance compatibility.
Frequently asked questions
Is lining always compulsory?
This page does not determine that. Have the appliance, flue and applicable requirements assessed before selecting work.
Is rigid or flexible better?
The choice depends on a compatible system and assessed configuration. No universal ranking of durability or draught is established here.
Can I do this without a professional?
Do not dismantle connections or climb onto the roof to prepare an enquiry. Entrust assessment and work to a competent professional.