5 things to do first

NZ Lifestyle Block - - FEATURE -

Be­fore you in­vest in sec­ondary glaz­ing make sure:

ceil­ing and un­der­floor in­su­la­tion is up to stan­dard;

you have a clean and af­ford­able heat­ing sys­tem;

you com­pare it against the cost of in­stalling new dou­ble glaz­ing;

win­dows (in­clud­ing frames) are still in good con­di­tion and can be ex­pected to last at least as long as the sec­ondary glaz­ing;

you shop around and ask for in­de­pen­dently ver­i­fied per­for­mance guar­an­tees and war­ranties.

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