Sliding Patio Doors Installation & Replacement
A good patio door does more than look nice. It keeps your home comfortable, your energy bills low, and your family secure. A bad one does the opposite drafts in winter, sticking tracks in summer, and frames that wobble when you lock up at night.
At The Window Source of Delmarva, we install and replace sliding glass patio doors for homeowners across Maryland and Delaware. Custom-made to fit your exact opening. Built to last. Backed by a lifetime warranty.
If your current patio door is fogging up, sliding roughly, or letting in cold air, we can fix that. Give us a call and we’ll come out for a free in-home estimate.
Are there different types of Patio Doors?
Yes, sliding glass doors come in different sizes and configurations to accommodate your house, your design and your style! The Window Source premium sliding glass door is available in two-, three-, and four-panel configurations. All sliding glass doors from The Window Source come standard with code-compliant tempered safety glass in all panes. You have peace of mind knowing that your new patio door features stout construction with aluminum and steel reinforced stiles for superior strength and a lifetime of durability. The operating panel rolls smoothly on dual oversized ball bearing rollers on a stainless-steel roller track and extra strong fiberglass threshold. Our sliding glass doors feature a single, dual, or multi-point locking system for added security. Add in a foot-operated secondary bolt and a locking point with ventilation for maximum security. It’s your home, and we will help you match the options to your project goals!
To keep you warm in the winter and cool in the summer, our sliding glass doors offer a range of high-performance Low E insulating glass options that can meet the stringent requirements of the ENERGY STAR Most Efficient designation. Let us help you design the sliding glass door you have been looking for… beautiful, strong, durable, energy-efficient, and custom-made for you!
Patio Door Features
- Multi-chambered vinyl frames
- Fusion-welded sashes
- Full vertical heavy gauge steel reinforcement in sash frames
- Tempered safety glass in all panes
- Warm edge spacer system
- Meets Energy Star requirements with LowE/Argon
- Over-sized tandem steel rollers provide easy gliding operation
- Dual point opposing hook locking mortise
- Optional dual-point lock and/or our optional foot bolt lock
- Limited Lifetime Warranty
Call The Window Source Today For A Free Estimate!
FAQs
How long does patio door installation take?
Most single patio door replacements take just a few hours. We arrive, remove the old door, install the new one, and clean up typically all in the same morning or afternoon. Larger multi-panel jobs may take a full day.
How much does a new patio door cost in Delmarva?
Prices vary depending on door size, panel configuration, glass type, and hardware choices. Most homeowners in the Delmarva area invest between $1,200 and $3,500 for a professionally installed replacement patio door. We offer free in-home estimates so you know the exact cost before committing.
What’s the difference between a sliding patio door and a French door?
A sliding patio door rolls horizontally on a track and takes up less space the panel tucks behind the fixed panel when open. A French door swings open on hinges and needs clear floor space to operate. Sliding doors are more popular for tighter spaces and are generally easier to seal and insulate.
Do you replace just the glass, or the whole door?
We can replace the entire door unit, including frame, track, and glass. If only the glass pane is damaged, we may be able to replace just the glass. We’ll assess your door during the free estimate and recommend the most cost-effective solution.
What warranty comes with a new patio door?
Every patio door from The Window Source comes with a lifetime warranty on the product. Our installation is also covered by a workmanship guarantee. If anything fails, we make it right.
Do you serve areas outside the Delmarva Peninsula?
Our primary service area is the Delmarva Peninsula, including Salisbury, Delmar, Dover, Milford, and surrounding communities. If you’re just outside this area, give us a call, we’ll let you know if we can help.
Can I pick my own hardware color and door style?
Yes. We offer color-coordinated handles as standard, with upgrades available in brass, satin nickel, and oil-rubbed bronze. You can also choose exterior capping colors to match your home’s trim, and add grill patterns inside the glass unit.