About This Service
Confirm Fit Before Choosing the Product
Outlet shape, dimensions and fitting method determine cap selection. A photograph can suggest a style but cannot confirm compatibility. Twin assesses the termination before specifying the replacement; homeowners can describe the concern from the ground and leave elevated measurements to the service visit.
Identify Every Termination Being Covered
An individual flue cap and a cover spanning multiple outlets protect different arrangements. Have each opening included in the estimate identified. A price for one fitting should not be read as replacement of every cap or cover visible at the chimney top.
Check the Single-Flue Fitting
A single-flue cap is selected for an individual outlet. The shape, exposed termination and intended fitting method matter more than a rough visual width. Ask whether the quoted product attaches to that outlet or requires a different supporting arrangement before an order is finalized.
Reassess Fit After Outlet Repairs
Repairs at the top can change the termination available for a cap. The final configuration should be understood before reusing or replacing the fitting. A product selected from the earlier condition may need review once the supporting work is defined.
Describe Rain Symptoms Independently
Water visible inside the fireplace and a damaged lid may occur together without proving one complete cause. Keep both observations in the service request. A cap proposal should state what its replacement addresses and whether a separate water-entry investigation is still needed.










