87/100CR 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
- 12 Pine Ridge Rd, Norland, ON K0M 1K0
Best Insulation Contractors in Gravenhurst, ON (2026)
16 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Gravenhurst: Dragon Spray Foam, CR Score 87/100; 5.0★ from 7 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Ainger Group Roofing and Exteriors, posts 24/7 hours; ranked #2 of 16.
- 3
Most-reviewed: Great Northern Insulation, 111 Google reviews at 4.7★, the most of 16 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
16 Gravenhurst insulation contractors are ranked here by CR Score, from 8 published factors. 5 are open 24/7, 8 open Saturdays and 7 open Sundays, based on posted hours. The median Google rating is 5.0★ across 16 rated businesses.
Top 10 insulation contractors in Gravenhurst at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Dragon Spray Foam | 87 | 5.0★ (7) | Gravenhurst | 24/7 | Overall |
| 2 | Ainger Group Roofing and Exteriors | 84 | 5.0★ (43) | Bracebridge, 15 km away | 24/7 | Emergencies |
| 3 | Great Northern Insulation | 84 | 4.7★ (111) | Gravenhurst | — | Most reviews |
| 4 | Ideal Insulation Solutions | 83 | 5.0★ (5) | Orillia, 19 km away | 24/7 | — |
| 5 | Knox Insulation & Roofing | 82 | 5.0★ (7) | Gravenhurst | Sat · Sun | — |
| 6 | Space Age Insulation | 80 | 4.5★ (8) | Orillia, 32 km away | 24/7 | — |
| 7 | All Well Sprayfoam Insulation Muskoka | 79 | 5.0★ (18) | Bracebridge, 22 km away | Sat · Evenings | — |
| 8 | Ainger Group Roofing and Exteriors | 79 | 4.9★ (32) | Orillia, 36 km away | 24/7 | — |
| 9 | THORNE INSULATION | 78 | 5.0★ (11) | Orillia, 25 km away | Sat · Sun | — |
| 10 | Best Choice Insulation | 75 | 4.4★ (25) | Bracebridge, 25 km away | Evenings | — |
The 16 best insulation contractors in Gravenhurst, 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 Bracebridge, 15 km away
84/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 43 Google reviews, open 24/7.
- 5.0★ from 43 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Town of, Suite 347, Bracebridge, ON P1L 2E2
Based in Gravenhurst
84/100CR ScoreRanked #3 because of its Google rating and review volume: 4.7★ from 111 Google reviews, the most Google reviews on this list (111).
- 4.7★ from 111 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 1027 Elwell Park Rd, Gravenhurst, ON P1P 1R1
Based in Orillia, 19 km away
83/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Gravenhurst
82/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
Based in Orillia, 32 km away
80/100CR ScoreRanked #6 because of its Google rating and availability: 4.5★ from 8 Google reviews, open 24/7.
- 4.5★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5121 Side Rd 20, Orillia, ON L3V 0S7
Based in Bracebridge, 22 km away
79/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 3011 Frank Miller Memorial Route, Muskoka District Road 169, Bala, ON P0C 1A0
Based in Orillia, 36 km away
79/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 32 Google reviews, open 24/7.
- 4.9★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3, 200 Memorial Ave Suite 314, Orillia, ON L3V 5X6
Based in Orillia, 25 km away
78/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 9 AM–5 PM
- Address
- 1010 Maple Valley Rd, Orillia, ON L3V 5V9
Based in Bracebridge, 25 km away
75/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.4★ from 25 Google reviews, listed on Google as “Insulation contractor”.
- 4.4★ from 25 Google reviews
- Hours
- Mon–Thu 8 AM–9 PM · Fri 9 AM–9 PM · Sat–Sun closed
#11 BASK Pro Inc
Based in Bracebridge, 28 km away
75/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.7★ from 27 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 27 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 149 Medora St, Port Carling, ON P0B 1J0
Based in Huntsville, 38 km away
73/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 2749 Brunel Rd, Huntsville, ON P1H 2J3
Based in Gravenhurst
72/100CR ScoreRanked #13 because of its Google rating and review volume: 4.0★ from 73 Google reviews, 73 Google reviews.
- 4.0★ from 73 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 2251 ON-11, Gravenhurst, ON P0E 1G0
Based in Bracebridge, 16 km away
71/100CR ScoreRanked #14 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–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 587 Manitoba St, Bracebridge, ON P1L 1B3
Based in Bracebridge, 34 km away
71/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 34 Sugar Maple Ln, Port Sydney, ON P0B 1L0
Based in Bracebridge, 8 km away
66/100CR ScoreRanked #16 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Roofing contractor”.
- 3.5★ from 8 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 1824 ON-11, Kilworthy, ON P0E 1G0
Also serving Gravenhurst
7 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 |
|---|---|---|
| BASK Pro Inc. | 5.0★ (1) | In Gravenhurst |
| Knox Insulation and Roofing | 5.0★ (2) | In Gravenhurst |
| Orillia Spray Foam Insulation | In Gravenhurst | |
| Royal Homes Ltd Gravenhurst | 3.0★ (4) | In Gravenhurst |
| Semple Solutions | 5.0★ (1) | 29 km |
| ThermaCork Insulation by VIPEQ | 14 km | |
| Tobin Building Systems | 11 km |
How much do insulation contractors cost in Gravenhurst?
US national ranges converted to CAD, not adjusted for Gravenhurst. 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 Gravenhurst insulation contractors
We scored 16 Gravenhurst 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 Gravenhurst 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 Gravenhurst: frequently asked questions
Who is the best insulation contractor in Gravenhurst?
By CR Score, the highest-ranked insulation contractor in Gravenhurst, ON is Dragon Spray Foam with a CR Score of 87/100. It has 5.0★ from 7 Google reviews. It is open 24/7. Ainger Group Roofing and Exteriors (#2) and Great Northern Insulation (#3) follow. We ranked 16 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Gravenhurst?
ContractorsRanked ranks 16 insulation contractors serving Gravenhurst, ON. 4 of them are based in Gravenhurst; the rest serve it from nearby towns. Another 7 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Gravenhurst are open 24/7?
5 ranked insulation contractors in Gravenhurst post 24/7 hours. The highest-ranked are Dragon Spray Foam (#1), Ainger Group Roofing and Exteriors (#2) and Ideal Insulation Solutions (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Gravenhurst work on weekends?
8 of 16 ranked insulation contractors post Saturday hours and 7 post Sunday hours. The highest-ranked open Saturdays are Dragon Spray Foam (#1), Ainger Group Roofing and Exteriors (#2) and Ideal Insulation Solutions (#4). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Gravenhurst?
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 Gravenhurst. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Gravenhurst insulation contractors have?
The median Google rating among 16 rated insulation contractors in Gravenhurst is 5.0★, with a median of 15 reviews. Great Northern Insulation has the most, 111 reviews, and ranks #3. 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 Gravenhurst count in this ranking?
Yes, if they are within 40 km of the Gravenhurst 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 Gravenhurst
- October 2026: CR Scores recalculated for 16 insulation contractors serving Gravenhurst.
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