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Caron & Guay Portes et Fenêtres — project photo 1 Caron & Guay Portes et Fenêtres — project photo 2 Caron & Guay Portes et Fenêtres — project photo 3

Caron & Guay Portes et Fenêtres

★★★★★
📍655 Pierre-Bertrand Blvd, Québec City, QC G1M 2E4
Directions Service Areas
Services:
  • PVC Windows
  • Hybrid Windows
  • Casement Windows
  • Awning Windows
  • Entry Doors
  • Patio Doors
  • Manufacturing
  • Window & Door Installation
“Caron & Guay is one of the most established and most-reviewed windows and doors companies in the Quebec City region — a long-standing manufacturer and installer of PVC and hybrid windows and doors, with nearly 700 reviews.”
Gagné Portes et Fenêtres — project photo 1 Gagné Portes et Fenêtres — project photo 2 Gagné Portes et Fenêtres — project photo 3 Gagné Portes et Fenêtres — project photo 4

Gagné Portes et Fenêtres

★★★★★
📍7362 Av. des Faisans, Québec, QC G1G 6T6
Directions Service Areas
Services:
  • PVC Windows
  • Casement Windows
  • Awning Windows
  • Bay & Bow Windows
  • Entry Doors
  • Patio Doors
  • Window & Door Installation
“Gagné Portes et Fenêtres is a Quebec City windows and doors specialist with an outstanding reputation — a 4.9-star rating across 250+ reviews — offering supply and professional installation for homes across the region.”
Isothermic Portes et Fenêtres — project photo 1 Isothermic Portes et Fenêtres — project photo 2 Isothermic Portes et Fenêtres — project photo 3

Isothermic Portes et Fenêtres

★★★★★
📍2630 Wilfrid-Hamel Blvd, Québec City, QC G1P 2J1
Directions Service Areas
Services:
  • PVC Windows
  • Hybrid Windows
  • Aluminum Windows
  • Casement Windows
  • Entry Doors
  • Patio Doors
  • Window & Door Installation
“Isothermic Portes et Fenêtres is a well-known Quebec window and door retailer and installer, trusted by Quebec City homeowners with a 4.7-star rating across 125+ reviews for its energy-efficient PVC and hybrid products.”

Windows & Doors in Quebec City: A Local Buyer's Guide

Quebec City pairs some of the oldest architecture in North America — the UNESCO-listed stone buildings of Vieux-Québec and the colourful rowhouses of Limoilou — with modern suburban development in Sainte-Foy, Beauport, and Charlesbourg. Add long, snowy winters and you have a market where the right porte et fenêtre specialist, and the right permits, really matter.

$500–$1,000Avg. window replacement (per unit, installed)
$9,000–$20,000Typical whole-home project
Spring & FallBest install season
Permits strict in Vieux-QuébecHeritage note

🌡️ Climate & what to buy

Quebec City sees heavy snowfall and -25°C to -30°C wind-chills through a long winter. Triple-pane, low-E, argon-filled ENERGY STAR windows and insulated fibreglass or steel doors are the norm for comfort and heating savings. On the region's many older masonry homes, an air-tight, expert installation matters as much as the product itself.

📋 Permits & bylaws

Important: the Ville de Québec requires permits for many exterior alterations, and rules are especially strict in the arrondissement historique of Vieux-Québec and other heritage sectors, which fall under Quebec's cultural-heritage protection — changing windows or doors on a protected building can require approval of materials, divisions, and colours from the city and the Ministère de la Culture. Always confirm with the Ville de Québec before ordering.

💰 Rebates & incentives

Quebec City homeowners can often combine the provincial Rénoclimat program and Hydro-Québec LogisVert incentives with the federal Canada Greener Homes programs for ENERGY STAR windows and doors. Programs change frequently — ask your installer which current rebates your project qualifies for before you sign.

📅 Best time to install

Book spring or early-fall installations. Mild, dry weather lets sealants and expanding foam cure properly, and installers avoid both the summer rush and the deep-freeze of a Quebec City winter.

Serving neighbourhoods across Quebec City: Vieux-Québec & Saint-Roch · Limoilou · Sainte-Foy & Sillery · Charlesbourg · Beauport · Lévis

Why Hire a Local Window & Door Expert in Quebec City?

Working with a local professional in Quebec City means faster service, climate-right materials, and someone who knows Quebec building codes and stands behind the work.

  • Faster response times — local crews schedule estimates and installs quicker than out-of-town providers.
  • 🌡️ Climate-specific advice — they know which materials perform best in Quebec City.
  • 📋 Permits & bylaws — avoid delays or fines with a contractor who knows the local rules.
  • 🔧 Reliable aftercare — if an issue arises, your contractor is a call away, not in another city.
  • Trusted reputation — local businesses live and die by word-of-mouth and reviews.

Get 3 Free Quotes with One Form

One form reaches all our expert-recommended companies in Quebec City. Fast, free, and no obligation.

Common Window & Door Services in Quebec City

Local pros in Quebec City handle everything from energy-efficient upgrades to full entryway transformations. The most-requested services:

🪟

Window Replacement & Installation

Upgrade old or damaged windows with energy-efficient double-pane, triple-pane, or low-E glass units.

🚪

Door Replacement & Installation

Improve curb appeal and security with quality front doors, patio sliders, and custom entry systems.

🌤️

Sliding & French Patio Doors

Add functionality and natural light with space-saving sliding doors or elegant French doors.

📐

Custom Window Solutions

Bay windows, bow windows, or oversized picture windows for unique architectural needs.

Energy-Efficient Upgrades

ENERGY STAR® certified windows and insulated doors built for Quebec City's climate.

🔧

Window & Door Repairs

Fix cracked frames, foggy glass, faulty locks, and weather stripping — without full replacement.

🏗️

Retrofit & Full-Frame Installation

Choose retrofit (keeping the existing frame) or full-frame installation for a complete upgrade.

💧

Condensation & Draft Solutions

Resolve air leaks, poor sealing, and moisture build-up for better indoor comfort.

Average Cost of Windows & Doors in Quebec City, Quebec

Costs vary by material, size, style, and installation method. Typical Quebec City price ranges:

Service TypeAverage Cost (Installed)
Standard PVC Window (per unit)$500 – $1,000
Triple-Pane Window (per unit)$750 – $1,300
Bay or Bow Window$2,200 – $4,200+
Entry Steel Door$1,100 – $1,900
Fiberglass Entry Door$1,600 – $2,600
Sliding Patio Door$1,300 – $2,900
French Door (Double)$1,900 – $3,600

Frequently Asked Questions

How does Mullions choose the top 3 companies in Quebec City?

Each business is evaluated against our 30-point review standard — reputation, customer reviews, licensing, online presence, and business integrity — before being featured.

Is it free to request quotes in Quebec City?

Yes. Submitting the quote form is completely free for homeowners, and your request goes to all featured companies in Quebec City at once.

Do I need a permit to replace windows or doors in Quebec City?

Important: the Ville de Québec requires permits for many exterior alterations, and rules are especially strict in the arrondissement historique of Vieux-Québec and other heritage sectors, which fall under Quebec's cultural-heritage protection — changing windows or doors on a protected building can require approval of materials, divisions, and colours from the city and the Ministère de la Culture. Always confirm with the Ville de Québec before ordering.

What does it cost to replace windows in Quebec City?

Most windows run $450–$1,200 per unit installed depending on material and glass; a full-home project is typically $8,000–$18,000. See the price table below.

How soon will companies respond?

Most featured local companies respond within one business day.

Windows & Doors in Nearby Cities

  • 📍Montreal
  • 📍Laval
  • 📍Gatineau
  • 📍Longueuil
  • 📍Sherbrooke
  • 📍Saguenay
  • 📍Levis
  • 📍Trois-Rivières
  • 📍Terrebonne
  • 📍Repentigny
  • 📍Saint-Jean-sur-Richelieu
  • 📍Drummondville