Now serving your area · 60487 Mon–Thu 8a–4p · Fri 8a–3p · Sat by appt 8049 185th St., Tinley Park (708) 636-9898 FREE CONSULTATION

Excel Doors

Patio Doors

Sliding or hinged French style. The door to your deck or yard should glide easy, lock solid, and seal tight against the cold. We make sure it does.

Family-owned since 1982 44 years in Chicagoland EPA Lead-Safe Certified Energy Star Partner A+ BBB Accredited since 1993

A patio door is the biggest single piece of glass in most houses, and it's the one that moves. That combination is why it's usually the coldest spot in the room by February and why an old one starts needing two hands and a shoulder to open.

Our primary patio door is the Soft-Lite Kingsroyal Glide, and the reason is a number: air infiltration of 0.06 CFM at 25 mph, against an industry minimum of 0.30. That's roughly five times tighter than what the standard calls passing — on the largest opening in the wall. It's the patio-door equivalent of the tightness figure we quote on our windows, and it matters more here because the opening is bigger.

It also keeps your patio door in the same warranty family as our primary Soft-Lite windows, which is worth more than it sounds. If you're replacing windows and the patio door together, one manufacturer stands behind all of it, and one warranty covers it.

The mechanical part people underestimate is the panel. A sliding patio panel is heavy, and if the stiles flex it racks in the track — that's the door that drags, then sticks, then needs lifting. Kingsroyal puts metal reinforcement in every vertical sash stile, and the frames, rails and stiles are injected with R-5 foam rather than left hollow, so the same part that insulates also stiffens.

Locking is the other one. A single center latch pulls the panel tight in the middle and leaves the top and bottom to bow. A two-point stainless mortise lock pulls the panel into the jamb at both ends — better security, and a noticeably better seal along the whole height.

If you'd rather swing than slide, we do that too — a ProVia Legacy French or hinged patio in 20-gauge steel, or clad-wood from Pella and Sierra Pacific when the interior needs to match real wood trim. We measure the opening, set the door dead level so it glides on its own weight, and check the lock engages without lifting.

Your options

Soft-Lite Kingsroyal Glide patio door cutaway showing the foam-filled frame and reinforced sash stile

Soft-Lite Kingsroyal Glide (sliding)

Our primary patio door, and the tightest thing we install. Slim sash profiles mean more glass and a wider view than most sliders give you at the same opening size.

  • 0.06 CFM air infiltration at 25 mph — about 5× tighter than the 0.30 CFM industry minimum
  • Structural DP 50 at 171 mph; water-tested at 54 mph and 8″ of rain per hour
  • R-5 ComfortFoam injected into frames, rails and stiles
  • Metal reinforcement in every vertical sash stile, so a big panel doesn't rack
  • Two-point stainless-steel mortise lock, exterior keyed
  • Glass to U-0.22 triple-pane; blinds available between the glass
  • Lifetime non-prorated warranty, same family as our Soft-Lite windows
ProVia Endure cutaway — insulated glass unit with warm-edge spacer

ProVia Endure (sliding)

The same Endure vinyl family as our ProVia windows — a natural match if you're already putting Endure windows in the same rooms.

  • U-factor as low as 0.17
  • Neopor graphite-infused foam insulation
  • ComforTech warm-edge glazing; internal blinds option
  • Transferable Lifetime Limited warranty including glass breakage
ProVia Legacy steel construction cutaway — the same 20-gauge steel used in the French patio configuration

ProVia Legacy French & hinged

The swing option. A French pair when you want both panels to open, or a hinged configuration — one swinging door beside a fixed glass unit — when you want the look without giving up the wall.

  • 20-gauge steel, left or right active panel, inswing or outswing
  • Unequal-size configurations — use the larger door daily, open both when you need to
  • Hinged 460 series pairs a swinging door with a fixed unit and a sliding screen
  • Factory-installed pet door option, rated for dogs up to about 50 lb
  • Blinds between the glass available; ComforTech glazing

Pella & Sierra Pacific (clad-wood)

Real wood inside, aluminum clad outside. The right call when the patio door has to match wood trim or existing wood windows in the same room.

  • Pella Lifestyle — sliding, French and bifold, with integrated blinds and shades between the glass
  • Sierra Pacific — sliding and swinging clad-wood, with stainless multipoint hardware
  • Stainable interiors; factory-finished clad exteriors that never need painting
  • Pella warranty is limited lifetime with 20-year glass

BRANDS WE INSTALL

  • Soft-Lite
  • ProVia
  • Pella
  • Sierra Pacific

Worth knowing

Sliding or French — the honest trade-off

This is almost always decided by the room, not by preference. Here's what actually separates them.

Feature Sliding French / hinged
Floor space Takes none — the panel slides along the wall Needs clear swing space inside or out
Opening width Half the opening on a 2-panel; 3-panel units go to 12 feet and wider The full opening when both panels are open
Tightness 0.06 CFM on the Kingsroyal — the tightest number we can quote Very good, but a slider with a two-point lock is hard to beat here
Furniture You can put a table right up to it The swing arc has to stay clear, indoors or out
Look Cleaner, more glass, more contemporary Traditional — reads like a door rather than a window
Screens A sliding screen on its own track Sliding screen on hinged configurations; a French pair is harder to screen

Small room, furniture near the door, or a deck that's tight — slider, nearly always. A wide opening onto a patio you entertain on, where you want the whole thing open — French.

Let's talk about your project.

How it works

  1. 1

    Free consultation

    We measure the opening, check the floor for level, and walk through slide-versus-swing, glass package and hardware. You get a clear written proposal — no pressure.

  2. 2

    Built to your opening

    Your door is made to the measured opening and factory-finished. Most orders take a few weeks.

  3. 3

    Install day

    Same crews, job after job. Most patio doors are a one-day install. On homes built before 1978 we work as an EPA Lead-Safe Certified Firm, which governs how the opening is contained and cleaned.

  4. 4

    Walk-through & after

    We set the door dead level so it glides on its own weight, check the lock engages without lifting, and confirm the screen tracks true. Warranty visits carry no service fee during your labor-warranty period.

Let's talk about your project.

Flexible monthly payments available through Service Finance. See financing options →

Last updated — we keep product specs and warranty terms on this page current with what we actually install.

Patio Doors — common questions

Reviewed August 2026

Why is my patio door the coldest part of the room?

Because it's the biggest piece of glass in the wall and it's the part that moves. Old sliders leak at the interlock and along the bottom track, and a hollow frame doesn't insulate. The Kingsroyal answers both — foam-filled frames rather than hollow, and 0.06 CFM of air infiltration against a 0.30 industry minimum.

My slider is hard to open. Is that fixable or does it need replacing?

Worth having us look. Sometimes it's rollers or a dirty track. But often the panel has racked because the sash stiles flexed over the years, and once a panel is out of square it will keep binding. New units put metal reinforcement in every vertical stile specifically to stop that.

Sliding or French — which is better?

Neither, and it's usually the room that decides. A slider takes no floor space and lets you put furniture right up to it. A French pair opens the full width, which is what you want on a patio you entertain on — but it needs clear swing space inside or out. We check the furniture layout at the consultation, not on install day.

Can I get blinds inside the glass?

Yes, on several of the lines — Kingsroyal, ProVia Endure and Pella all offer blinds sealed between the panes. They tilt from a control on the frame, never need dusting, and there are no cords. On a door that gets a lot of sun or a lot of hands, it's the option people are happiest with afterward.

How secure is a sliding door?

Better than the old ones deserve their reputation for. The Kingsroyal uses a two-point stainless mortise lock that pulls the panel into the jamb at the top and bottom rather than latching only in the middle, and it's keyed from outside. That also seals better along the full height, so security and draft get fixed by the same part.

How wide can a patio door go?

Two-panel units come in 5, 6 and 8 feet, and three-panel configurations go to 9 or 12 feet and custom widths. Transoms and sidelites can go on any size. If you're opening up a wall, tell us at the measure and we'll size the whole opening rather than just replacing like for like.

How long does the install take?

Most patio doors are a one-day install. The lead time is the build — a few weeks, because the door is made to your measured opening.

What's the warranty?

Two separate warranties, and the specifics vary by line. Soft-Lite's Kingsroyal carries a lifetime limited product warranty that can transfer once to the next owner — same family as our Soft-Lite windows; ProVia's is Lifetime Limited and also transfers to one owner; Pella's is limited lifetime with 20-year glass. Excel warrants the labor for five years on all of them. The specifics are written into your contract — read them, and ask us anything.

Will the same crew be on my job?

Yes. We send the same crews job after job — low turnover, same faces from start to finish.

Ready When You Are

Let's talk about your patio doors.

A free, no-pressure in-home consultation. We bring the product samples, measure what we need to measure, and leave you with a clear written proposal — not a sales pitch.

Schedule your free in-home consultation

Step 1 of 3 — What can we help with?

Call (708) 636-9898 Free Quote