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ContractorsRanked

Best Window Installers in Lethbridge, AB (2026)

15 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Lethbridge: GreenFox Windows & Doors, CR Score 65/100; 4.9★ from 174 Google reviews; open 7 days a week.

  2. 5

    Best for emergencies (open 24/7): Chase Roofing & Exteriors, posts 24/7 hours; ranked #5 of 15.

  3. 7

    Most-reviewed: South Peak Roofing & Exteriors, 331 Google reviews at 4.9★, the most of 15 ranked; ranked #7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

15 Lethbridge window installers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 4 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.9★ across 15 rated businesses.

Top 10 window installers in Lethbridge at a glance

Top 10 window installers in Lethbridge at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1GreenFox Windows & Doors654.9★ (174)LethbridgeSat · SunOverall
2Preferred Auto Glass Ltd634.9★ (115)Lethbridge——
3Crystal Glass Canada Ltd634.7★ (195)LethbridgeSat—
4Speedy Glass Lethbridge614.8★ (144)Lethbridge——
5Chase Roofing & Exteriors595.0★ (95)Lethbridge24/7Emergencies
6Empire Homes Renovations575.0★ (21)Lethbridge——
7South Peak Roofing & Exteriors574.9★ (331)Lethbridge—Most reviews
8AlphaTech Windows & Doors Lethbridge575.0★ (8)LethbridgeSat—
9Window Mart Lethbridge565.0★ (14)Lethbridge——
10Window Time564.4★ (15)LethbridgeEvenings—

The 15 best window installers in Lethbridge, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

  1. Ranked #1 in Lethbridge

    #1 GreenFox Windows & Doors

    Based in Lethbridge

    65/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 174 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 174 Google reviews
    Hours
    Mon–Fri 7 AM–6 PM · Sat 7 AM–4 PM · Sun 10 AM–4 PM
    Address
    3180 36 St N, Lethbridge, AB T1H 7E5
    View profile for GreenFox Windows & Doors(825) 445-1033

  2. #2 Preferred Auto Glass Ltd

    Based in Lethbridge

    63/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “Window installation service”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.9★ from 115 Google reviews
    Address
    4617 24 Ave S, Lethbridge, AB T1K 7C1
    View profile for Preferred Auto Glass Ltd(403) 359-4074

  3. #3 Crystal Glass Canada Ltd

    Based in Lethbridge

    63/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.7★ from 195 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 195 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
    Address
    1422 3 Ave S, Lethbridge, AB T1J 2L1
    View profile for Crystal Glass Canada Ltd(403) 327-5011

  4. #4 Speedy Glass Lethbridge

    Based in Lethbridge

    61/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 144 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 144 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1717 2 Ave S, Lethbridge, AB T1J 0E8
    View profile for Speedy Glass Lethbridge(403) 329-6311

  6. #6 Empire Homes Renovations

    Based in Lethbridge

    57/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 21 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    2017 14 Ave S, Lethbridge, AB T1K 0V3
    View profile for Empire Homes Renovations(403) 894-5454

  9. #9 Window Mart Lethbridge

    Based in Lethbridge

    56/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 14 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    1502 2 Ave S, Lethbridge, AB T1J 0G1
    View profile for Window Mart Lethbridge(587) 388-0898

  10. #10 Window Time

    Based in Lethbridge

    56/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.4★ from 15 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.4★ from 15 Google reviews
    Hours
    Mon–Fri 8 AM–8 PM · Sat–Sun closed
    Address
    3447 30 Ave N Unit 8, Lethbridge, AB T1H 7B5
    View profile for Window Time(403) 394-3434

  11. #11 Janzen Home Renovations

    Based in Lethbridge

    55/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.4★ from 15 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.4★ from 15 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    3133 6 Ave N, Lethbridge, AB T1H 5B9
    View profile for Janzen Home Renovations(403) 380-6052

  12. #12 Peka Rollshutters Ltd

    Based in Lethbridge

    55/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Window installation service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 9 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1220 3 Ave S, Lethbridge, AB T1J 0J9
    View profile for Peka Rollshutters Ltd(403) 329-4597

  13. #13 Robin Eye Window Cleaning Ltd

    Based in Lethbridge

    53/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.6★ from 28 Google reviews, listed on Google as “Gutter Cleaning Service”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 28 Google reviews
    Hours
    Mon–Fri 9 AM–3 PM · Sat–Sun closed
    Address
    212045 Twp Rd 81a #3, Lethbridge County, AB T1K 8G6
    View profile for Robin Eye Window Cleaning Ltd(403) 360-5040

  15. #15 All New Roofing

    Based in Taber, 50 km away

    47/100CR Score

    Ranked #15 because of its Google rating and review volume: 5.0★ from 38 Google reviews.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 38 Google reviews
    Hours
    Mon–Fri 7:30 AM–5:30 PM · Sat–Sun closed
    Address
    6002 60 Ave, Taber, AB T1G 1S8
    View profile for All New Roofing(403) 714-2892

Also serving Lethbridge

20 more window installers within 64 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked window installers serving Lethbridge
BusinessGoogle ratingDistance
Absolute Foundations3.1★ (25)In Lethbridge
Avery Don Builders Inc.5.0★ (14)In Lethbridge
Bridge Home Painting4.9★ (242)In Lethbridge
CertaPro Painters® of Lethbridge4.8★ (59)In Lethbridge
Crosshair Cutting Coring & Demolition5.0★ (22)In Lethbridge
Cully's Junk Removal, Bin Rentals & Landscaping4.9★ (23)In Lethbridge
Electrician Allpros Lethbridge4.8★ (80)In Lethbridge
Exteriors by Leroy & Darcy Ltd.4.9★ (99)In Lethbridge
Granite Rocks Ltd.4.7★ (25)In Lethbridge
L A Home Solutions5.0★ (13)In Lethbridge
L A Neon Sign Sales & Service4.2★ (23)In Lethbridge
Lethbridge Door Systems Inc4.9★ (123)In Lethbridge
Local Handyman Lethbridge4.8★ (47)In Lethbridge
Overhead Door Company of Lethbridge™4.3★ (114)In Lethbridge
Reside Custom Builders4.8★ (17)In Lethbridge
Soot N' Sewer5.0★ (230)In Lethbridge
Spraytek Insulation Ltd.4.9★ (23)In Lethbridge
SRI Homes – Regent3.5★ (25)In Lethbridge
Taylor Made Services .Ltd4.9★ (93)In Lethbridge
The Deck Centre and Alta Aluminum5.0★ (28)In Lethbridge

How much do window installers cost in Lethbridge?

US national ranges converted to CAD, not adjusted for Lethbridge. Each row names its basis and the month we checked it.

How much do window installers cost in Lethbridge?
JobLowTypicalHighBasisChecked
Window replacementCA$4,830CA$10,330CA$16,640Per project (several windows): typical range of customer-reported projects. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)October 2026

How we ranked Lethbridge window installers

We scored 15 Lethbridge window installers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Lethbridge data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Window installers in Lethbridge: frequently asked questions

Who is the best window installer in Lethbridge?

By CR Score, the highest-ranked window installer in Lethbridge, AB is GreenFox Windows & Doors with a CR Score of 65/100. It has 4.9★ from 174 Google reviews. It is open 7 days a week. Preferred Auto Glass Ltd (#2) and Crystal Glass Canada Ltd (#3) follow. We ranked 15 window installers on ten factors, last updated October 22, 2026.

How many window installers are there in Lethbridge?

ContractorsRanked ranks 15 window installers serving Lethbridge, AB. 14 of them are based in Lethbridge; the rest serve it from nearby towns. Another 20 within 64 km are listed but not ranked yet. Counts are as of October 2026.

Which window installers in Lethbridge are open 24/7?

1 ranked window installer in Lethbridge posts 24/7 hours. The highest-ranked is Chase Roofing & Exteriors (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which window installers in Lethbridge work on weekends?

4 of 15 ranked window installers post Saturday hours and 2 post Sunday hours. The highest-ranked open Saturdays are GreenFox Windows & Doors (#1), Crystal Glass Canada Ltd (#3) and Chase Roofing & Exteriors (#5). Posted hours are office hours; crews may book weekend jobs separately.

How much does window replacement cost in Lethbridge?

Window replacement typically costs CA$4,830 to CA$16,640, with CA$10,330 typical (Per project (several windows): typical range of customer-reported projects. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for Lethbridge. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Lethbridge window installers have?

The median Google rating among 15 rated window installers in Lethbridge is 4.9★, with a median of 28 reviews. South Peak Roofing & Exteriors has the most, 331 reviews, and ranks #7. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank window installers?

Each window installer gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do window installers outside Lethbridge count in this ranking?

Yes, if they are within 64 km of the Lethbridge city centre, our service radius for window installers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Update log for Lethbridge

  1. October 2026: CR Scores recalculated for 15 window installers serving Lethbridge.
  2. October 2026: 1 duplicate listing merged.

More window installers and Lethbridge pages

Window installers near Lethbridge

Other trades in Lethbridge