We repair custom masonry fireplaces within strict adherence to building codes that specify for clearance of combustible materials, mortar types, distance between firebricks, dimensions and materials of firebox and flue, and seismic reinforcing. It is important when installing a new chimney insert that the dimensions of the flue match the new output. You can trust that your fireplace insert will be installed the safe and correct way because we are licensed professionals and do this type of work every day. Boston area residents will be met with a dedicated professional with experience in repairing chimney materials of all varieties.