4000 Series

DESIGNED TO IMPRESS. BUILT TO LAST. Realize your vision for your home with Mastic 4000 Series Replacement Windows. Engineered to meet your aesthetic and functional needs, you’ll find the right sizes, the right designs and the right solutions.


Pinch fusion-welding construction

creates a solid, one-piece unit with no excess variance for long-term durability

Warm Edge glass spacer system

Reduces thermal transfer around the glass perimeter by using a unique U-shaped channel to separate
glass panes and interrupt the natural flow of heat to cold; upgrade to Warm Edge+ for enhanced performance


Integral Interlock

Double hung windows feature integral interlock for a weathertight seal and extra security

New Generation uiPVC vinyl

never needs painting or caulking and resists conducting heat and cold

SilLock design1

Sloped sill with unique SilLock design ensures natural water run-off

optional R-CoreĀ® insulation2

prevents voids and settling and results in even distribution of the maximum insulating barrier

optional coastal hardware

consistently stands up to saltwater and other harsh coastal conditions

V.I.P. Lifetime Limited WARRANTY

(download warranty for complete details)

Murray's Roofing and Siding, Inc.
6536 Buckshore Dr. HamburgMI48139 USA 
 • 810-231-1177