63/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 66 Google reviews, the most in Big Flats.
- 4.8★ from 66 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat 8 AM–5 PM · Sun closed
- Address
- 1361 College Ave, Elmira, NY 14901
Best Window Installers in Big Flats, NY (2026)
11 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Big Flats: First Class Glass & Mirror, CR Score 63/100; 4.8★ from 66 Google reviews; open Saturdays until 5 PM.
- 7
Most-reviewed: Bullfrog Construction LLC, 37 Google reviews at 4.8★, the most of 11 ranked after First Class Glass & Mirror; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
11 Big Flats window installers are ranked here by CR Score, from ten published factors. 3 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.2★ across 11 rated businesses.
Top 10 window installers in Big Flats at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | First Class Glass & Mirror | 63 | 4.8★ (66) | Elmira, 6 mi away | Sat | Overall |
| 2 | Charles Window Company | 55 | 3.3★ (17) | Elmira, 8 mi away | — | — |
| 3 | Energy Savers NY LLC | 53 | 4.2★ (5) | Elmira, 9 mi away | — | — |
| 4 | WBR Windows | 52 | 5.0★ (13) | Penn Yan, 37 mi away | — | — |
| 5 | Smiths Design & Build Construction | 52 | 4.8★ (17) | Elmira, 3 mi away | — | — |
| 6 | PRO-LINE CONSTRUCTION | 50 | 4.0★ (4) | Corning, 8 mi away | Sat · Sun | — |
| 7 | Bullfrog Construction LLC | 50 | 4.8★ (37) | Hornell, 40 mi away | Sat | Most reviews |
| 8 | Greenspun Building & Design, LLC | Home Renovations & Additions | 49 | 5.0★ (3) | Ithaca, 32 mi away | Evenings | — |
| 9 | Dean's Construction | 48 | 3.7★ (12) | Elmira, 7 mi away | — | — |
| 10 | BSB Contracting LLC | 47 | 3.8★ (6) | Elmira, 6 mi away | — | — |
The 11 best window installers in Big Flats, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Elmira, 8 mi away
55/100CR ScoreRanked #2 because of its Google rating and trade focus: 3.3★ from 17 Google reviews, listed on Google as “Window installation service”.
- 3.3★ from 17 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 252 Clemens Center Pkwy, Elmira, NY 14901
Based in Elmira, 9 mi away
53/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Window installation service”.
- 4.2★ from 5 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 809 Maple Ave, Elmira, NY 14904
#4 WBR Windows
Based in Penn Yan, 37 mi away
52/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Thu 7 AM–5:30 PM · Fri 7 AM–3:30 PM · Sat–Sun closed
- Address
- 1869 NY-54, Penn Yan, NY 14527
Based in Elmira, 3 mi away
52/100CR ScoreRanked #5 because of its Google rating and review volume: 4.8★ from 17 Google reviews.
- 4.8★ from 17 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 38 Curren Rd, Elmira, NY 14903
Based in Corning, 8 mi away
50/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
- 4.0★ from 4 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun 8 AM–8 PM
- Address
- 36 Stanton St, Painted Post, NY 14870
Based in Hornell, 40 mi away
50/100CR ScoreRanked #7 because of its Google rating and review volume: 4.8★ from 37 Google reviews.
- 4.8★ from 37 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 20 Chambers St, Hornell, NY 14843
Based in Ithaca, 32 mi away
49/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window installation service”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun closed
Based in Elmira, 7 mi away
48/100CR ScoreRanked #9 because of its Google rating and review volume: 3.7★ from 12 Google reviews.
- 3.7★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 707 Lake St, Elmira, NY 14901
Based in Elmira, 6 mi away
47/100CR ScoreRanked #10 because of its Google rating and trade focus: 3.8★ from 6 Google reviews, listed on Google as “Contractor”.
- 3.8★ from 6 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 141 Lynwood Ave, Elmira Heights, NY 14903
Based in Southport, 18 mi away
47/100CR ScoreRanked #11 because of its Google rating and review volume: 3.1★ from 34 Google reviews.
- 3.1★ from 34 Google reviews
- Hours
- Mon–Fri 6 AM–5 PM · Sat–Sun closed
- Address
- 1400 Green Mountain Rd, Gillett, PA 16925
Also serving Big Flats
11 more window installers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Bright Ideas by Martinec | 3.0★ (2) | In Big Flats |
| C&J Home Improvement | 8 mi | |
| C&S Home Builders and General Contractors | 22 mi | |
| Comfort Windows | 5.0★ (1) | 30 mi |
| Drake Construction, LLC | 3.0★ (2) | 5 mi |
| Hopgart Construction LLC | 5.0★ (2) | 6 mi |
| Isaac Heating & Air Conditioning | 4.8★ (1,532) | In Big Flats |
| KEUKA HANDYMAN | 34 mi | |
| Pella Window & Door | 31 mi | |
| Unlimited Development Property Improvement | 1.0★ (1) | 2 mi |
| Weiss Construction | 3.9★ (7) | In Big Flats |
How much do window installers cost in Big Flats?
Typical prices in USD, adjusted for New York with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Window replacement | $3,730 | $7,980 | $12,860 | Per project (several windows): typical range of customer-reported projects. US national range × 1.09 Middle Atlantic factor (2025 Cost vs. Value Report) | October 2026 |
How we ranked Big Flats window installers
We scored 11 Big Flats 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.
| Factor | Weight | Computed from | In Big Flats data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Window installers in Big Flats: frequently asked questions
Who is the best window installer in Big Flats?
By CR Score, the highest-ranked window installer in Big Flats, NY is First Class Glass & Mirror with a CR Score of 63/100. It has 4.8★ from 66 Google reviews. It is open Saturdays until 5 PM. Charles Window Company (#2) and Energy Savers NY LLC (#3) follow. We ranked 11 window installers on ten factors, last updated October 22, 2026.
How many window installers are there in Big Flats?
ContractorsRanked ranks 11 window installers serving Big Flats, NY. Another 11 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which window installers in Big Flats work on weekends?
3 of 11 ranked window installers post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are First Class Glass & Mirror (#1), PRO-LINE CONSTRUCTION (#6) and Bullfrog Construction LLC (#7). Posted hours are office hours; crews may book weekend jobs separately.
How much does window replacement cost in Big Flats?
Window replacement typically costs $3,730 to $12,860, with $7,980 typical (Per project (several windows): typical range of customer-reported projects. US national range × 1.09 Middle Atlantic factor (2025 Cost vs. Value Report)). The range is adjusted for New York. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Big Flats window installers have?
The median Google rating among 11 rated window installers in Big Flats is 4.2★, with a median of 13 reviews. First Class Glass & Mirror has the most, 66 reviews, and ranks #1. 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 Big Flats count in this ranking?
Yes, if they are within 40 mi of the Big Flats city center, 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.
Can window installers pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Big Flats
- October 2026: CR Scores recalculated for 11 window installers serving Big Flats.
More window installers and Big Flats pages
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