63/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 44 Google reviews
- Hours
- Mon–Fri 7 AM–4:30 PM · Sat–Sun closed
Best Insulation Contractors in North Cowichan, BC (2026)
9 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in North Cowichan: Insolex and GoGreen Insulation, CR Score 63/100; 5.0★ from 44 Google reviews.
- 5
Best for emergencies (open 24/7): RGH Construction, posts 24/7 hours; ranked #5 of 9.
- 3
Most-reviewed: Shoreline Building Performance, 45 Google reviews at 4.9★, the most of 9 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 North Cowichan insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 4 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 5.0★ across 9 rated businesses.
Top 9 insulation contractors in North Cowichan at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Insolex and GoGreen Insulation | 63 | 5.0★ (44) | Colwood, 5 km away | — | Overall |
| 2 | TomWay Extractions and Insulation | 58 | 5.0★ (38) | Salt Spring Island, 30 km away | — | — |
| 3 | Shoreline Building Performance | 57 | 4.9★ (45) | Nanaimo, 37 km away | — | Most reviews |
| 4 | WD McCance & Son Building Service | 57 | 5.0★ (7) | Salt Spring Island, 28 km away | Sat · Sun · Evenings | — |
| 5 | RGH Construction | 56 | 3.9★ (11) | North Cowichan | 24/7 | Emergencies |
| 6 | Gabriola Services and Media Solutions | 56 | 5.0★ (10) | Nanaimo, 38 km away | Sat · Sun | — |
| 7 | CE Spray Foam Solutions Inc. | 56 | 4.9★ (21) | Salt Spring Island, 28 km away | — | — |
| 8 | Warren Contracting | 51 | 4.8★ (28) | Sooke, 36 km away | Sat | — |
| 9 | Before and After Painting inc. | 44 | 5.0★ (5) | Colwood, 39 km away | — | — |
The 9 best insulation contractors in North Cowichan, 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 Salt Spring Island, 30 km away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 38 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
Based in Nanaimo, 37 km away
57/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 45 Google reviews, the most in North Cowichan.
- 4.9★ from 45 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
Based in Salt Spring Island, 28 km away
57/100CR ScoreRanked #4 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–7 PM
Based in North Cowichan
56/100CR ScoreRanked #5 because of its Google rating and review volume: 3.9★ from 11 Google reviews.
- 3.9★ from 11 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Nanaimo, 38 km away
56/100CR ScoreRanked #6 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 9 AM–5 PM · Sat 9 AM–9 PM · Sun 9 AM–5 PM
- Address
- 1154 McGillvary Ave, Gabriola, BC V0R 1X2
Based in Salt Spring Island, 28 km away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 21 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 21 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 2011 Malaview Ave W, Sidney, BC V8L 5X6
Based in Sooke, 36 km away
51/100CR ScoreRanked #8 because of its Google rating and review volume: 4.8★ from 28 Google reviews.
- 4.8★ from 28 Google reviews
- Hours
- Mon closed · Tue–Fri 8 AM–4 PM · Sat 9 AM–4 PM · Sun closed
Based in Colwood, 39 km away
44/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
How much do insulation contractors cost in North Cowichan?
US national ranges converted to CAD, not adjusted for North Cowichan. 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 North Cowichan insulation contractors
We scored 9 North Cowichan 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 North Cowichan 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 North Cowichan: frequently asked questions
Who is the best insulation contractor in North Cowichan?
By CR Score, the highest-ranked insulation contractor in North Cowichan, BC is Insolex and GoGreen Insulation with a CR Score of 63/100. It has 5.0★ from 44 Google reviews. TomWay Extractions and Insulation (#2) and Shoreline Building Performance (#3) follow. We ranked 9 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in North Cowichan?
ContractorsRanked ranks 9 insulation contractors serving North Cowichan, BC. 1 of them is based in North Cowichan; the rest serve it from nearby towns. Counts are as of October 2026.
Which insulation contractors in North Cowichan are open 24/7?
1 ranked insulation contractor in North Cowichan posts 24/7 hours. The highest-ranked is RGH Construction (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in North Cowichan work on weekends?
4 of 9 ranked insulation contractors post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are WD McCance & Son Building Service (#4), RGH Construction (#5) and Gabriola Services and Media Solutions (#6). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in North Cowichan?
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 North Cowichan. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do North Cowichan insulation contractors have?
The median Google rating among 9 rated insulation contractors in North Cowichan is 5.0★, with a median of 21 reviews. Shoreline Building Performance has the most, 45 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 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 North Cowichan count in this ranking?
Yes, if they are within 40 km of the North Cowichan 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 North Cowichan
- October 2026: CR Scores recalculated for 9 insulation contractors serving North Cowichan.
More insulation contractors and North Cowichan pages
Insulation contractors near North Cowichan
- Insulation contractors in Duncan, BC9 ranked
- Insulation contractors in Ganges, BC5 ranked
- Insulation contractors in Salt Spring Island, BC10 ranked
- Insulation contractors in Ladysmith, BC12 ranked
- Insulation contractors in North Saanich, BC19 ranked
- Insulation contractors in Nanaimo, BC14 ranked
- Insulation contractors in Langford, BC18 ranked
- Insulation contractors in Colwood, BC20 ranked
- Insulation contractors in Tsawwassen, BC84 ranked
- Insulation contractors in Victoria, BC19 ranked
Other trades in North Cowichan
- Roofers in North Cowichan178 ranked
- Plumbers in North Cowichan86 ranked
- Electricians in North Cowichan63 ranked
- HVAC contractors in North Cowichan73 ranked
- General contractors in North Cowichan78 ranked
- Painters in North Cowichan26 ranked
- Landscapers in North Cowichan33 ranked
- Handymen in North Cowichan8 ranked
- Kitchen remodelers in North Cowichan42 ranked
- Bathroom remodelers in North Cowichan41 ranked
- Flooring contractors in North Cowichan26 ranked
- Tile installers in North Cowichan9 ranked
- Drywall contractors in North Cowichan5 ranked
- Concrete contractors in North Cowichan21 ranked
- Fence contractors in North Cowichan25 ranked
- Deck builders in North Cowichan29 ranked
- Siding contractors in North Cowichan55 ranked
- Window installers in North Cowichan102 ranked
- Gutter installers in North Cowichan48 ranked
- Solar installers in North Cowichan47 ranked
- Foundation repair companies in North Cowichan34 ranked
- Tree services in North Cowichan42 ranked
- Masonry contractors in North Cowichan22 ranked
- Water damage restoration companies in North Cowichan102 ranked
- Home builders in North Cowichan227 ranked
- Demolition contractors in North Cowichan13 ranked
- All contractors in North Cowichan