New Windows & Doors - Lower Energy Bills, Higher Home Value!

Drafty windows and sticking doors are costing you money every day. Apex Windows & Doors installs premium, energy-efficient windows and doors with a lifetime manufacturer warranty. Get your free in-home estimate today.

Learn More ↓
Free In-Home Estimate Lic. #WD-334421 ENERGY STAR Certified 6,000++ Units Installed

Get Your FREE Estimate Now

No obligation - we'll contact you within 24 hours

We never sell or share your information. Your privacy is protected.

Licensed Window & Door Contractor License #WD-334421 (AB)
Fully Insured $2,000,000 Liability
Bonded Surety Bond Held
ENERGY STAR Certified Products
NAFS / CSA Certified Tested to Standard
Lifetime Warranty All Products
You may qualify for up to $2,500 back through the Canada Greener Homes grant. Book your free estimate today - we handle all the paperwork.
Why Choose Us

Old Windows Are Costing You More Than You Think

Drafty, single-pane, or failed-seal windows can account for up to 30% of your home heating and cooling loss. Sticking or warped doors compromise security and let in cold air all winter. Replacing them pays for itself in energy savings, comfort, and home value.

At Apex Windows & Doors, we have installed over 6,000+ windows and doors across Calgary and the surrounding area over 20 years. Here is why homeowners keep choosing us...

ENERGY STAR Certified Products

Every window and door we install meets or exceeds ENERGY STAR requirements. Lower bills from day one.

Lifetime Manufacturer Warranty

The products we install carry a lifetime warranty on frames and glass seal. We also provide a written labour warranty.

Precision Measurement & Fit

Every opening is measured twice by an experienced installer. A perfect fit means no drafts, no callbacks.

Licensed, Insured & Bonded

Fully licensed contractor with complete liability insurance and bonding on every installation.

All-Inclusive Pricing

One price covers product, labour, disposal of old windows, and cleanup. No surprise add-ons on install day.

We Handle the Rebate Paperwork

Eligible for government energy rebates? We help you apply and maximise your rebate - no extra charge.

Get a Free Estimate
Our Services

Every Window & Door Product Your Home Needs

ENERGY STAR rated, lifetime warranted, professionally installed - the last windows you will ever need to buy.

Replacement Windows

  • Casement & Awning Windows
  • Double-Hung Windows
  • Sliding & Picture Windows
  • Bay & Bow Windows
  • Egress & Basement Windows

Entry & Patio Doors

  • Steel & Fibreglass Entry Doors
  • Patio & Sliding Doors
  • French & Garden Doors
  • Storm Doors
  • Garage Doors

Specialty & Custom

  • Custom Shape & Size Windows
  • Decorative Glass Options
  • Transom & Sidelite Panels
  • Heritage & Period Styles
  • Commercial Glazing

Energy & Efficiency

  • ENERGY STAR Certified Products
  • Triple-Pane Glass Upgrades
  • Low-E Coatings
  • Argon-Filled Units
  • Rebate Application Help
Get a Free Estimate
Our Installation Process

From Measure to Install - How Our Process Works

Windows and doors are a precision product. Here is exactly what happens from your first call to the final cleanup.

01

Free In-Home Estimate

We visit your home, assess existing frames, measure every opening, and walk you through product and glass options. No obligation.

02

Written Quote & Product Select

You receive a written, all-inclusive quote within 24 hours. We help you select the right products for your home, style, and budget.

03

Precision Measure & Factory Order

Once approved, we take final precision measurements and place your factory order. Lead times are confirmed in writing upfront.

04

Professional Installation

Our certified installers remove old units, install and insulate the new windows and doors, trim, flash, and seal every opening.

05

Walkthrough, Warranty & Cleanup

We walk through every unit with you, register your manufacturer warranty, demonstrate operation, and leave your home spotless.

About Us

About Apex Windows & Doors

Apex Windows & Doors has been installing premium windows and doors across Calgary and the surrounding area for over 20 years. We are an authorised dealer and certified installer for leading North American manufacturers. Every product we sell is ENERGY STAR certified and backed by a lifetime manufacturer warranty.

Whether you are replacing a single window or doing a complete whole-home installation, we bring the same precision, professionalism, and care to every opening.

Get a Free Estimate
Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations
Our Promise

Premium Quality, Wallet-Friendly Prices - Our Customers Love Us!

We make replacing your windows and doors straightforward, precise, and completely stress-free.

Free In-Home Estimate

We come to you, measure every opening, and provide a written all-inclusive quote within 24 hours.

ENERGY STAR Products Only

Every product we install qualifies for ENERGY STAR. Lower heating and cooling bills from the first winter.

All-Inclusive Pricing

Product, labour, old window disposal, and cleanup - all in one flat price. No surprises.

Lifetime Warranty

Lifetime manufacturer warranty on every product plus our written labour warranty. Covered for good.

Rebate Assistance Included

We help you claim every available government energy rebate - maximising your savings at no extra cost.

Licensed, Insured & Bonded

Fully licensed contractor with complete liability insurance on every installation. No exceptions.

Ready To Get Started?

Request your free, no-obligation estimate now. No pressure, no surprises - just straightforward, honest service from a team you can trust.

Get a Free Estimate
Our Work

Recent Projects

Examples of our completed work across Calgary and the surrounding area.

Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations Apex Windows & Doors - completed window and door installations
Get a Free Estimate
Buyer's Guide

Not All Window Companies Are Created Equal...

Before you sign anything with a window or door company, here are the questions you need to ask and the high-pressure tactics to watch for.

Questions to Ask Your Window Company

  • Ask if the products are ENERGY STAR certified and what the energy rating is.
  • Ask what warranty is provided on the frame, glass seal, and labour separately.
  • Ask if the price includes removal and disposal of old windows.
  • Ask if they are an authorised dealer and certified installer for the brand.
  • Ask for a fully itemised written quote before signing anything.
  • Ask about lead times - how long from deposit to confirmed installation date.

Red Flags to Watch Out For

  • High-pressure same-day pricing - a price that expires in an hour is a manipulation tactic.
  • Unusually low quotes - cheaper glass and frames fail faster and cost more long-term.
  • Unable to provide proof of manufacturer authorisation or installer certification.
  • Vague warranty terms - a real lifetime warranty spells out exactly what is covered.
  • Large upfront deposits demanded before any measurement or order confirmation.
  • No physical showroom, address, or verifiable local business presence.
Get a Free Estimate