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Completed French Door Project | Danville, California

Therma-Tru French Door Replacement with Sidelites in Danville, CA

Thirty-year-old wood French doors replaced with a white Therma-Tru fiberglass system featuring divided glass and two matching sidelites.

Danville, CA Therma-Tru Fiberglass French Doors Two Sidelites Wood Door Replacement
White Therma-Tru fiberglass French doors with two sidelites installed in Danville, CaliforniaBefore & After
Completed white Therma-Tru fiberglass French doors with two sidelites in Danville, CA.

Project Overview

Replacing 30-Year-Old Wood French Doors in Danville

AMG Doors & Windows completed this French patio-door replacement for a homeowner in Danville, California.

The original wood French doors had served the home for approximately 30 years. Over time, repeated weather exposure and strong direct sun affected the fit of the wood components.

The homeowner experienced shrinking, visible gaps, and increasingly inconsistent operation around the opening. Rather than abandoning the traditional French-door layout, the homeowner selected a new Therma-Tru exterior doors system with two matching sidelites.

The completed white entry preserves the wide glass area and classic divided-light appearance while replacing the aging wood doors with a coordinated fiberglass door system.

Before & After

Before and After: Danville French Door Replacement

Compare the original wood French doors and sidelites with the completed Therma-Tru fiberglass door system.

Thirty-year-old wood French doors with sidelites before replacement in DanvilleBefore
White Therma-Tru fiberglass French doors with two sidelites installed in Danville, CaliforniaAfter

Exterior — the aging wood French doors and sidelites were replaced with a coordinated white Therma-Tru fiberglass French-door system featuring divided glass and matching sidelites.

Interior view of the original shrinking wood French doors in a Danville homeBefore
Interior view of completed Therma-Tru French patio doors and divided-glass sidelitesAfter

Interior — the original wood interior with mixed glass patterns was replaced with a clean white French-door system preserving natural light and views of the deck and backyard.

The Original Wood French Doors

Wood Doors That Changed After Decades of Sun and Weather

The original French doors were constructed from wood and had remained in the opening for approximately three decades.

The opening receives substantial sun exposure. Over time, the homeowner noticed changes in the fit of the doors, including shrinking and visible gaps.

Wood is a natural material that can respond to moisture, heat, sun exposure, finish condition, and seasonal weather.

For this homeowner, the repeated fit and operating concerns eventually made complete replacement the preferred solution.

The Homeowner's Goals

Preserve the French-Door Design with More Consistent Operation

The homeowner wanted to retain the appearance and broad glass area of the original French-door entrance while replacing the aging wood components. The project goals included:

  • Replace the 30-year-old wood doors
  • Address shrinking and visible gaps
  • Improve everyday operation
  • Preserve double French-door access
  • Retain two sidelites
  • Maintain natural light
  • Keep a divided-light architectural design
  • Use a clean white finish
  • Select a fiberglass replacement
  • Maintain views of the deck and backyard

The AMG Solution

Therma-Tru Fiberglass French Doors with Two Sidelites

AMG Doors & Windows replaced the original wood entry with a Therma-Tru fiberglass French-door system as part of our professional patio door replacement service.

The completed design includes two hinged center doors and one narrow sidelite on each side. Full-height divided glass extends across the opening and preserves the traditional architectural character of the original entry.

The white frames coordinate with the home's siding, trim, interior walls, and existing architectural details.

Project Features

Confirmed Project Details

Manufacturer
Therma-Tru
Primary service
Patio Door Replacement
Project type
French Door Replacement
Material
Fiberglass
Configuration
Double French Doors with Two Sidelites
Glass
Full-Height Divided Glass
Frame appearance
White
Original door material
Wood
Original door age
Approximately 30 Years
Original concern
Wood Shrinkage
Original concern
Visible Gaps
Exposure
Direct Sun
Location
Danville, California
County
Contra Costa County
Installed by
AMG Doors & Windows

Why Fiberglass

Why the Homeowner Selected Fiberglass French Doors

The homeowner wanted to preserve the French-door appearance while moving away from the aging wood slabs that had changed dimensionally over time.

Fiberglass exterior doors can provide a painted appearance and support a variety of glass, panel, frame, and finish configurations.

For this Danville project, fiberglass allowed the homeowner to maintain the divided-light French-door design while replacing the original wood system.

Sidelites

Two Sidelites Preserve the Width and Natural Light

A narrow sidelite is positioned on each side of the French-door pair.

The sidelites extend glass across the complete opening and help balance the center doors visually.

They also preserve daylight and exterior views without requiring the homeowner to reduce the size of the original entrance. The repeated divided-light pattern helps the doors and sidelites read as one coordinated architectural system.

Direct-Sun Considerations

Planning a Door Replacement for a Sun-Exposed Opening

Exterior doors exposed to prolonged sunlight may experience increased surface temperatures and greater stress on finishes, seals, frames, and surrounding materials. When evaluating a sun-facing opening, homeowners should consider:

  • Door material
  • Exterior finish
  • Overhang and shade
  • Glass area
  • Frame and jamb condition
  • Threshold condition
  • Weatherstripping
  • Existing gaps
  • Door alignment
  • Maintenance expectations

The correct replacement depends on the exposure, architecture, and condition of the complete opening.

Complete Opening

Addressing the Complete Door Opening

A successful French-door replacement involves more than changing the two operating slabs. The complete opening may include:

  • Door panels
  • Sidelites
  • Jambs
  • Threshold
  • Weatherstripping
  • Exterior trim
  • Interior casing
  • Hardware
  • Perimeter sealing
  • Wall conditions

For this project, the homeowner wanted a coordinated replacement rather than another temporary adjustment to the old wood doors.

Completed Result

A Renewed French-Door Entrance for This Danville Home

The completed Therma-Tru fiberglass system preserves the appearance and function the homeowner valued in the original French-door opening.

The white doors and sidelites provide a cleaner, coordinated presentation inside and outside the home. Divided glass maintains natural light and views of the deck and backyard.

The aging wood doors, visible gaps, and inconsistent fit have been replaced with a complete new door-and-sidelite system designed for the existing opening.

Local Service Area

French Door Replacement in Danville, California

AMG Doors & Windows provides patio door replacement in Danville and throughout Alamo, Blackhawk, San Ramon, Walnut Creek, and surrounding Contra Costa County communities.

Our team helps homeowners compare:

  • Fiberglass French doors
  • Wood French doors
  • Doors with sidelites
  • Hinged and sliding patio doors
  • Glass and grid designs
  • Exterior finishes
  • Jamb and threshold options
  • Hardware
  • Direct-sun considerations
  • Full-frame and replacement installation approaches

During an in-home consultation, we inspect the complete opening and provide good, better, and best options based on the home, exposure, design priorities, and budget.

Helpful Background

When an Older Wood Door Shrinks or Shows Daylight

Visible daylight around a closed exterior door may be related to several conditions, including:

  • Seasonal dimensional changes
  • Aging weatherstripping
  • Door movement
  • Frame movement
  • Hardware alignment
  • Threshold wear
  • Jamb conditions
  • Long-term weather exposure
  • Finish deterioration

The appropriate solution depends on whether the problem is limited to adjustment or weatherstripping, or whether the full door system has reached the end of its useful life.

Get Started

Are Your Danville French Doors Shrinking, Sticking or Showing Gaps?

Schedule a free in-home consultation with AMG Doors & Windows to compare Therma-Tru fiberglass French doors, sidelites, glass designs, frame components, finishes, hardware, measurements, and installation requirements for your home.

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