89/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
- 5.0★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 208 Yeomans St unit 103, Belleville, ON K8P 3Y4
Best Insulation Contractors in Belleville, ON (2026)
12 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Belleville: Active Environmental Safety, CR Score 89/100; 5.0★ from 7 Google reviews; open 24/7.
- 9
Most-reviewed: Strictly Roofing, 45 Google reviews at 4.7★, the most of 12 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
12 Belleville insulation contractors are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.9★ across 12 rated businesses.
Top 10 insulation contractors in Belleville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Active Environmental Safety | 89 | 5.0★ (7) | Belleville | 24/7 | Overall |
| 2 | C&K Fibertech Ltd | 83 | 5.0★ (25) | Belleville | — | — |
| 3 | Zach Adams Drywall & Taping | 83 | 4.2★ (5) | Belleville | Sat · Sun · Evenings | — |
| 4 | Bossline Spray Foam Insulation | 81 | 5.0★ (16) | Belleville | — | — |
| 5 | SP Insulation & Barriers | 81 | 4.8★ (19) | Napanee, 28 km away | Sat | — |
| 6 | Reid's Insulating | 81 | 4.6★ (30) | Belleville | — | — |
| 7 | Canadian Shield Spray Foam | 78 | 5.0★ (14) | Quinte West, 17 km away | — | — |
| 8 | Eco - Solutions | 74 | 4.3★ (16) | Napanee, 37 km away | Evenings | — |
| 9 | Strictly Roofing | 74 | 4.7★ (45) | Quinte West, 25 km away | — | Most reviews |
| 10 | Global Insulating Solutions Ltd | 70 | 5.0★ (3) | Napanee, 36 km away | — | — |
The 12 best insulation contractors in Belleville, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Belleville
83/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 25 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 310d Ashley St, Foxboro, ON K0K 1V0
Based in Belleville
83/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
- 4.2★ from 5 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 135 Catharine St, Belleville, ON K8P 1M7
Based in Belleville
81/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 16 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 68 Dundas St W, Belleville, ON K8P 1A3
Based in Napanee, 28 km away
81/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 19 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 2420 Enright Rd, Tyendinaga, ON K0K 2N0
Based in Belleville
81/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.6★ from 30 Google reviews, listed on Google as “Insulation contractor”.
- 4.6★ from 30 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
- Address
- 407 Farnham Rd, Belleville, ON K8N 4Z5
Based in Quinte West, 17 km away
78/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 14 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 61 Leopold St, Quinte West, ON K8V 2K3
Based in Napanee, 37 km away
74/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.3★ from 16 Google reviews, listed on Google as “Insulation contractor”.
- 4.3★ from 16 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun closed
- Address
- 8769 Hwy 33, Loyalist Pkwy, Bath, ON K0H 1G0
Based in Quinte West, 25 km away
74/100CR ScoreRanked #9 because of its Google rating and review volume: 4.7★ from 45 Google reviews, the most Google reviews on this list (45).
- 4.7★ from 45 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 16349 Ontario County Hwy 2, Quinte West, ON K0K 2C0
Based in Napanee, 36 km away
70/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Thu 7 AM–5 PM · Fri 7 AM–12 PM · Sat–Sun closed
- Address
- 25 Snow Rd, Napanee, ON K7R 3Y5
Based in Belleville
70/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Construction company”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun closed
- Address
- 54 S John St, Belleville, ON K8N 3E3
Based in Napanee, 23 km away
70/100CR ScoreRanked #12 because of its Google rating and review volume: 4.7★ from 14 Google reviews, 14 Google reviews.
- 4.7★ from 14 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 51 Billy Brews Rd, Deseronto, ON K0K 1X0
Also serving Belleville
3 more insulation contractors within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Arctic Wolf Insulation | 5.0★ (2) | 36 km |
| Belleville Insulation | 5.0★ (2) | In Belleville |
| G & R Insulation | In Belleville |
How much do insulation contractors cost in Belleville?
US national ranges converted to CAD, not adjusted for Belleville. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | CA$2,390 | CA$2,950 | CA$3,510 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
How we ranked Belleville insulation contractors
We scored 12 Belleville insulation contractors on 8 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. Unknown factors are left out of the score, 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 Belleville data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Insulation contractors in Belleville: frequently asked questions
Who is the best insulation contractor in Belleville?
By CR Score, the highest-ranked insulation contractor in Belleville, ON is Active Environmental Safety with a CR Score of 89/100. It has 5.0★ from 7 Google reviews. It is open 24/7. C&K Fibertech Ltd (#2) and Zach Adams Drywall & Taping (#3) follow. We ranked 12 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Belleville?
ContractorsRanked ranks 12 insulation contractors serving Belleville, ON. 6 of them are based in Belleville; the rest serve it from nearby towns. Another 3 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Belleville are open 24/7?
1 ranked insulation contractor in Belleville posts 24/7 hours. The highest-ranked is Active Environmental Safety (#1). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Belleville work on weekends?
3 of 12 ranked insulation contractors post Saturday hours and 2 post Sunday hours. The highest-ranked open Saturdays are Active Environmental Safety (#1), Zach Adams Drywall & Taping (#3) and SP Insulation & Barriers (#5). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Belleville?
Attic insulation typically costs CA$2,390 to CA$3,510, with CA$2,950 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for Belleville. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Belleville insulation contractors have?
The median Google rating among 12 rated insulation contractors in Belleville is 4.9★, with a median of 15 reviews. Strictly Roofing has the most, 45 reviews, and ranks #9. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank insulation contractors?
Each insulation contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Belleville count in this ranking?
Yes, if they are within 40 km of the Belleville city centre, our service radius for insulation contractors. 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 Belleville
- October 2026: CR Scores recalculated for 12 insulation contractors serving Belleville.
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