A maker of home products that include weatherstripping, sealing items and replacement parts for windows and doors.
M-D Building Products makes a wide range of home products, including weatherstripping, sealing items and replacement parts. Many of these are sold in hardware stores and used for small repairs around windows. For a handy homeowner they can solve minor problems, and for a contractor they are useful for restoring older windows.
We are an independent contractor and use the products that suit each repair. We look at the window, find where the air or water is getting in and choose parts such as weatherstripping, sweeps or sill pieces that match. If a part will not fix the real problem, we explain why and talk about the next step.
Visit the official M-D Building Products website
Many shapes and materials for different gaps.
Products for gaps around frames and sills.
Parts for older windows and common repairs.
Many items are available locally.
The right shape and size matter for a good seal.
We find the cause before choosing parts.
Broken Window Glass ReplacementReplace cracked, shattered or chipped window glass quickly, with safe temporary protection when needed.Explore 
Window Sash ReplacementReplace a damaged or worn sash inside your existing frame, keeping the frame and trim and refreshing the…Explore 
Window Seal and Weatherstripping RepairReplace worn weatherstripping and failed seals so sashes close tight and drafts, noise and dust stay out.Explore 
Stuck or Painted-Shut Window RepairFree windows that will not open because of paint, swollen frames or dirty tracks, without damaging the sash.Explore 
Window Insulation and Air SealingLow-expansion foam and sealant in the gap around the frame, closing a path for drafts and energy loss.Explore 
Flashing and WaterproofingSill pans, flashing tape and drip caps that send water out and away so windows stay dry for…Explore 
Interior Storm Windows and InsertsRemovable interior window inserts that add insulation and sound control without changing the outside look.Explore 
Window Film and TintingSolar control, privacy and decorative film applied to existing glass to cut glare, heat and fading.Explore Check problems, pick a style or ballpark a budget.
Window Problem Checker: What Is Wrong?Pick what you see or hear from a window to get likely causes, what to do first and the service page that fits.Try it 
Window Style PickerAnswer a few questions about your home, rooms, ventilation and view to see which window styles usually fit best.Try it 
Window Replacement Budget PlannerPick a window type or repair, set the quantity and add extras to see a ballpark planning range for your project.Try it Often yes, when the problem is a worn seal or small part. We tell you if it needs more.
Bring measurements and photos to the store, or ask us to identify it during an estimate.
No. We are an independent window company, and M-D Building Products is a trademark of its owner. We work with many brands and are glad to install the product you prefer.
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