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Exterior French doors with divided-light glass on a home — French Doors in the Treasure Valley, Idaho

Treasure Valley Doors

French Doors in the Treasure Valley

French doors for a classic, wide-open look

French doors bring a wide, classic, wide-open feel that a slider can't match. A pair of hinged panels that swing open from the center turns a wall into a grand opening — to a patio, a deck, or between two interior rooms — and the divided-light glass and traditional proportions read as more architectural and high-end than a sliding track. For owners after a timeless look, French doors are the answer.

We install French doors as single or double units, in-swing or out-swing, for both exterior and interior openings. Out-swing units save interior floor space and shed water well, while in-swing is the more traditional configuration; we help you pick based on clearance, weather exposure, and how the space is used. Divided-light grille patterns, full-view glass, and matching sidelights are all on the table.

Where French doors demand attention is the weather seal and the hardware. Two operating panels meeting in the middle means the astragal (the meeting stile), the multi-point locking, and the threshold all have to be detailed correctly or the door will leak air and water at the center. We flash the sill, seal the perimeter, and set secure multi-point hardware so a French door performs as well as it looks through Idaho weather.

Done right, a French door swings true, latches solidly at multiple points, seals tight at the center and perimeter, and gives you that wide, light-filled opening for decades.

What's included

  • Single & double hinged units
  • In-swing & out-swing
  • Divided-light glass options
  • Weather sealing & flashing
  • Secure hardware

Our process

How we handle french doors

  1. 01

    Measure & assess

    We measure the opening, check the framing, sill, and threshold, and confirm single versus double, swing direction, and glass before quoting.

  2. 02

    Configuration & glass selection

    We lay out in-swing versus out-swing, grille patterns, full-view glass, and sidelight options so the configuration fits your clearance and look.

  3. 03

    Removal & opening prep

    The old door comes out and we inspect and repair the sill, subfloor, and framing so the new unit sits true on sound framing.

  4. 04

    Set, level & flash

    The unit is set plumb, level, and square, shimmed, and the sill is flashed and sealed so water drains out — critical at a wide two-panel threshold.

  5. 05

    Astragal, lock & adjust

    We set the meeting-stile seal and the multi-point locking and adjust both panels so they meet tight at the center and latch securely.

  6. 06

    Weather seal & walkthrough

    We seal the perimeter, clean up, and walk the swing, the center seal, and the lock with you.

In the Treasure Valley

Built for local homes & weather

The center meeting point of a double French door is the spot that leaks air and water if it isn't detailed right — exactly the kind of weak point Idaho's wind-driven rain and winter cold find. We set the astragal and multi-point lock so the center seals as tight as the perimeter.

Out-swing French doors are often the smarter choice on exposed Treasure Valley elevations because they shed wind-driven water better and don't intrude on interior space; we'll recommend swing direction based on your exposure.

French Doors FAQs

French doors or a sliding patio door?

French doors give a wider, more traditional, architectural opening and swing fully open; sliders save space and suit big-view modern openings with furniture nearby. If you want the classic look and have room to swing, French; if floor space is tight, a slider. We'll help you decide for your opening.

In-swing or out-swing?

Out-swing saves interior floor space and sheds wind-driven water better, which often suits exposed Idaho elevations; in-swing is the more traditional configuration. We recommend based on your clearance, weather exposure, and how the room is used.

Do French doors leak air or water at the center?

They can if the meeting stile (astragal), multi-point lock, and threshold aren't detailed correctly — that center joint is the critical spot. We set the astragal seal and multi-point hardware and adjust both panels so the center seals as tight as the perimeter.

Can I use French doors as an interior opening?

Yes — interior French doors are a great way to open up between rooms while keeping the option to close them off. The weather detailing isn't needed indoors, but we still set them to swing true and latch cleanly. We'll confirm the opening supports the configuration.

What drives the cost?

Single versus double, swing direction, the glass and grille pattern, sidelights, hardware, and any sill or framing repair at removal. A wide double exterior unit with sidelights and divided-light glass is the premium end. We quote after measuring.

Do French doors swing in or out, and which is better for Idaho?

Exterior French doors can be configured to swing in or out, and the right choice depends on your room layout, weather exposure, and clearance. Outswing doors free up interior floor space and can shed water well, while inswing doors are common and keep the hinges protected inside. We help you pick the swing based on your wall, threshold, and how the space is used.

Are French doors less secure because of the glass?

French doors can be just as secure as solid doors when they use a multi-point lock, tempered or laminated glass, and a reinforced frame. The classic weak point is a flush bolt or a single latch on a double-door pair, so a sound astragal and locking system on both panels matters. Laminated glass also resists being broken to reach the latch.

How do double French doors seal against drafts?

A double French door seals at the perimeter weatherstripping plus the astragal where the two panels meet, so the quality of that center seal and the threshold is key. A level, square installation keeps both panels aligned so the seal stays tight through seasonal movement. Done right, hinged French units can perform well in cold weather.

Can I replace a sliding patio door with French doors?

Often yes, but the rough opening sizes differ, so the swap usually involves reframing the opening to fit the new unit and confirming you have room for the doors to swing. It may also trigger a permit depending on the structural work. We measure the existing opening and check clearances at the estimate before recommending the change.

What drives the cost of French doors?

The number of panels, glass package, grid or divided-light style, hardware, and frame material all affect price, along with any reframing the opening needs. Outswing hardware and multi-point locks can add cost over a basic latch. Because French doors are mostly glass and have two operating panels, the glass and locking choices weigh heavily, so we quote each project on-site.

Other doors types we install

Explore the rest of our doors materials and services across the Treasure Valley.

Materials

Brands We Install

Repair & Specialty

Commercial & Multifamily

Sources & references

How we back what we say

Our recommendations follow building code, manufacturer specifications, and federal efficiency standards — not sales scripts. These are the primary sources behind the guidance on this page.

  • Exterior DoorsU.S. Department of Energy

    DOE guidance on door materials, cores, weatherstripping, and how doors gain and lose heat.

  • ENERGY STAR Exterior DoorsU.S. EPA / ENERGY STAR

    Efficiency criteria for qualified entry and patio doors by climate zone.

  • Therma-Tru Entry Door SystemsTherma-Tru Doors

    Manufacturer product data and installation resources for fiberglass and steel entry door systems.

  • Renovation, Repair and Painting (RRP) RuleU.S. Environmental Protection Agency

    Federal lead-safe work practices required when disturbing painted surfaces on homes built before 1978 — relevant to siding tear-offs and window/door replacement on older Treasure Valley homes.

  • Idaho Contractor RegistrationIdaho Division of Building Safety

    Idaho's contractor registration program (RCE numbers). You can verify any Idaho contractor's registration status here.

  • International Residential Code (IRC)International Code Council

    The model residential building code Idaho jurisdictions adopt — governs weather-resistive barriers, flashing, fastening, and egress that exterior work must meet.

  • Energy Saver: WeatherizeU.S. Department of Energy

    DOE guidance on air sealing and the building envelope — the principles behind proper flashing, weather barriers, and sealing.

Need french doors done right?

Tell us about your siding, window, or door project — we'll come take a look and give you a straight, free estimate.

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