65/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 21 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
- Address
- 610 Anglican Church Rd, Perth, ON K7H 3C6
Best Insulation Contractors in Perth, ON (2026)
8 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Perth: Perth Insulation Removal, CR Score 65/100; 5.0★ from 21 Google reviews; open 7 days a week.
- 5
Best for emergencies (open 24/7): Green Minds Building, posts 24/7 hours; ranked #5 of 8.
- 6
Most-reviewed: ProFoam Insulation Inc, 32 Google reviews at 5.0★, the most of 8 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Perth insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 3 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 5.0★ across 8 rated businesses.
Most of this list also appears on the Insulation contractors in Smiths Falls ranking. See Insulation contractors in Smiths Falls
Top 8 insulation contractors in Perth at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Perth Insulation Removal | 65 | 5.0★ (21) | Perth | Sat · Sun | Overall |
| 2 | Perth Spray Foam Insulation | 63 | 5.0★ (28) | Perth | — | — |
| 3 | Comfort Zone Insulation | 62 | 4.9★ (27) | Perth | — | — |
| 4 | Top 2 Bottom Insulation | 60 | 5.0★ (13) | Perth | — | — |
| 5 | Green Minds Building | 59 | 4.5★ (16) | Nepean, 39 km away | 24/7 | Emergencies |
| 6 | ProFoam Insulation Inc | 58 | 5.0★ (32) | Ottawa, 35 km away | — | Most reviews |
| 7 | Advanced Insulation Systems | 57 | 5.0★ (5) | Perth | — | — |
| 8 | Dazé Roofing & Insulation | 55 | 4.6★ (11) | Arnprior, 25 km away | Sat · Sun | — |
The 8 best insulation contractors in Perth, 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 Perth
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 28 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 36 Church St, Perth, ON K7H 2A3
Based in Perth
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 27 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 8 Herriott St, Perth, ON K7H 1S9
Based in Perth
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 889 Leslie Crain Dr, Perth, ON K7H 3C3
Based in Nepean, 39 km away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.5★ from 16 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Ottawa, 35 km away
58/100CR ScoreRanked #6 because of its Google rating and review volume: 5.0★ from 32 Google reviews, the most in Perth.
- 5.0★ from 32 Google reviews
- Hours
- Mon–Thu 8 AM–6 PM · Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 2043 Ramsay Concession 7B, Almonte, ON K0A 1A0
Based in Perth
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- Sunset Blvd, Perth, ON K7H 3H8
Based in Arnprior, 25 km away
55/100CR ScoreRanked #8 because of its Google rating and review volume: 4.6★ from 11 Google reviews.
- 4.6★ from 11 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
How much do insulation contractors cost in Perth?
US national ranges converted to CAD, not adjusted for Perth. 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 Perth insulation contractors
We scored 8 Perth insulation contractors 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 Perth 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 |
Insulation contractors in Perth: frequently asked questions
Who is the best insulation contractor in Perth?
By CR Score, the highest-ranked insulation contractor in Perth, ON is Perth Insulation Removal with a CR Score of 65/100. It has 5.0★ from 21 Google reviews. It is open 7 days a week. Perth Spray Foam Insulation (#2) and Comfort Zone Insulation (#3) follow. We ranked 8 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in Perth?
ContractorsRanked ranks 8 insulation contractors serving Perth, ON. 5 of them are based in Perth; the rest serve it from nearby towns. Counts are as of October 2026.
Which insulation contractors in Perth are open 24/7?
1 ranked insulation contractor in Perth posts 24/7 hours. The highest-ranked is Green Minds Building (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Perth work on weekends?
3 of 8 ranked insulation contractors post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Perth Insulation Removal (#1), Green Minds Building (#5) and Dazé Roofing & Insulation (#8). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Perth?
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 Perth. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Perth insulation contractors have?
The median Google rating among 8 rated insulation contractors in Perth is 5.0★, with a median of 19 reviews. ProFoam Insulation Inc has the most, 32 reviews, and ranks #6. 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 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 insulation contractors outside Perth count in this ranking?
Yes, if they are within 40 km of the Perth 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 Perth
- October 2026: CR Scores recalculated for 8 insulation contractors serving Perth.
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