65/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 400 Google reviews, the most in Ajax.
- 4.9★ from 400 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 9 AM–6 PM
- Address
- 1333 Boundary Rd #33, Oshawa, ON L1J 6Z7
Best Insulation Contractors in Ajax, ON (2026)
117 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Ajax: Logik Roofing & Insulation Oshawa, CR Score 65/100; 4.9★ from 400 Google reviews; open 7 days a week.
- 5
Best for emergencies (open 24/7): Eco-therma Inc., posts 24/7 hours; ranked #5 of 117.
- 14
Most-reviewed: Superior Care Home Services Inc., 266 Google reviews at 5.0★, the most of 117 ranked after Logik Roofing & Insulation Oshawa; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
117 Ajax insulation contractors are ranked here by CR Score, from ten published factors. 12 are open 24/7, 79 open Saturdays and 48 open Sundays, based on posted hours. The median Google rating is 5.0★ across 117 rated businesses.
Top 10 insulation contractors in Ajax at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Logik Roofing & Insulation Oshawa | 65 | 4.9★ (400) | Oshawa, 12 km away | Sat · Sun · Evenings | Overall |
| 2 | The Same Guys Insulation | 64 | 5.0★ (80) | Ajax | Sat · Sun | — |
| 3 | DJM Spray Foam | 61 | 5.0★ (52) | Oshawa, 14 km away | Sat · Sun · Evenings | — |
| 4 | Confirmed Attics & Insulation | 60 | 4.9★ (265) | Markham, 26 km away | Sat | — |
| 5 | Eco-therma Inc. | 59 | 5.0★ (71) | Toronto, 37 km away | 24/7 | Emergencies |
| 6 | Space insulation inc. | 59 | 5.0★ (214) | Richmond Hill, 33 km away | Sat | — |
| 7 | Koala Insulation of Durham | 59 | 5.0★ (11) | Oshawa, 13 km away | 24/7 | — |
| 8 | Pro Insulation Contracting | 59 | 4.9★ (145) | Markham, 24 km away | Sat | — |
| 9 | Logik Roofing & Insulation Whitby | 59 | 5.0★ (9) | Ajax | Sat · Sun · Evenings | — |
| 10 | Sundance Home Comfort | 59 | 4.4★ (59) | Scarborough, 14 km away | Sat · Sun · Evenings | — |
The 117 best insulation contractors in Ajax, 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 Ajax
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 80 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 80 Google reviews
- Hours
- Mon–Sat 9 AM–6 PM · Sun 9 AM–5 PM
- Address
- 83 Henry Smith Ave, Bowmanville, ON L1C 0W1
Based in Oshawa, 14 km away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 52 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 729 Fernhill Blvd, Oshawa, ON L1J 5K2
Based in Markham, 26 km away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 265 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 265 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
- Address
- 2600 John St. #208, Markham, ON L3R 3W3
Based in Toronto, 37 km away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 71 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 325 Front St W C-Office 2085A, Toronto, ON M5V 2Y1
Based in Richmond Hill, 33 km away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 214 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 214 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun closed
- Address
- 10660 Yonge St, Richmond Hill, ON L4C 3C9
Based in Oshawa, 13 km away
59/100CR ScoreRanked #7 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
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1260 Terwillegar Ave, Oshawa, ON L1J 7A5
Based in Markham, 24 km away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 145 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 145 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 10 AM–4 PM · Sun closed
- Address
- 185 Riviera Dr Unit 11, Markham, ON L3R 5M1
Based in Ajax
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 9 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 105 Consumers Dr unit 2, Whitby, ON L1N 1C4
Based in Scarborough, 14 km away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.4★ from 59 Google reviews, listed on Google as “Insulation contractor”.
- 4.4★ from 59 Google reviews
- Hours
- Mon–Sat 8 AM–9 PM · Sun 9 AM–9 PM
- Address
- 27 Casebridge Ct Unit 8, Scarborough, ON M1B 4Y4
Based in Pickering, 5 km away
59/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 9 AM–6 PM
- Address
- 1315 Pickering Pkwy suite 300, Pickering, ON L1V 0C4
Based in North York, 25 km away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 76 Google reviews
- Hours
- Mon–Fri 12 PM–7 PM · Sat–Sun 12 PM–5 PM
- Address
- 250 Consumers Rd #701, North York, ON M2J 4V6
#13 Free Attic
Based in Richmond Hill, 33 km away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 187 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 187 Google reviews
- Hours
- Mon–Sat 9 AM–5 PM · Sun closed
- Address
- 10271 Yonge St #336, Richmond Hill, ON L4C 3B5
Based in Markham, 24 km away
58/100CR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 266 Google reviews.
- 5.0★ from 266 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 185 Riviera Dr Unit 9, Markham, ON L3R 5J6
Based in Newmarket, 40 km away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 132 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 132 Google reviews
- Hours
- Mon–Fri 7:30 AM–9 PM · Sat–Sun 9 AM–9 PM
- Address
- 16700 Bayview Ave #214, Newmarket, ON L3X 1W1
Based in Scarborough, 19 km away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 43 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun closed
- Address
- 100 Consilium Pl Suite # 200, Scarborough, ON M1H 3E3
Based in Oshawa, 13 km away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.5★ from 19 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 19 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 1100 Skae Dr #1, Oshawa, ON L1J 8H6
Based in Toronto, 37 km away
57/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 82 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 82 Google reviews
- Hours
- Mon–Sun 8 AM–10 PM
- Address
- 1110 Finch Ave W #30, Toronto, ON M3J 2T2
Based in Ajax
57/100CR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 76 Google reviews.
- 5.0★ from 76 Google reviews
- Hours
- Mon 8:30 AM–8:30 PM · Tue–Fri 8 AM–8:30 PM · Sat–Sun 9 AM–8:30 PM
- Address
- 719 Maria St, Whitby, ON L1N 1P9
Based in Scarborough, 18 km away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Fri 9 AM–10 PM · Sat–Sun 9 AM–9 PM
- Address
- 10 Milner Business Ct #300, Scarborough, ON M1B 3C6
#21 Spray Foam Kings
Based in Aurora, 38 km away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 64 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 64 Google reviews
- Hours
- Mon–Sun 8 AM–10 PM
- Address
- 120 Metcalfe St, Aurora, ON L4G 1E8
#22 J&J Inc
Based in East Gwillimbury, 29 km away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 152 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 152 Google reviews
- Hours
- Mon–Fri 9 AM–8 PM · Sat–Sun closed
- Address
- 167 N Port Rd, Port Perry, ON L9L 0B7
Based in Scarborough, 23 km away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 37 Google reviews
- Hours
- Mon–Sat 9 AM–7 PM · Sun closed
- Address
- 50 Howden Rd, Scarborough, ON M1R 3E4
Based in Vaughan, 36 km away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 90 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–3 PM · Sun closed
- Address
- 0A6, 8707 Dufferin St Suite10, Vaughan, ON
Based in North York, 22 km away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 17 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun 10 AM–6 PM
Insulation contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 117 ranked insulation contractors here; the rest are on their profiles.
Also serving Ajax
20 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 |
|---|---|---|
| Advanced Insulation Intl | 5.0★ (2) | 37 km |
| Ajax Top Roofing | In Ajax | |
| Call Restoration | 5.0★ (2) | 36 km |
| Drywall Pro-EZ Contracting | 5.0★ (11) | In Ajax |
| Eco Insulation Durham | In Ajax | |
| Eco shield insulation solutions | 5.0★ (2) | 29 km |
| I.N. FOAM INSULATION SERVICES INC | 5.0★ (2) | 22 km |
| Milan Insulation | 5.0★ (2) | 22 km |
| Panda Spray Foam Insulation | 5.0★ (2) | 37 km |
| Petevi Foam Insulation | 5.0★ (1) | In Ajax |
| Pickering Insulation | 5.0★ (2) | In Ajax |
| Poly Foam Insulation Systems Inc | 3.0★ (2) | In Ajax |
| Radom Insulation | 5.0★ (2) | 17 km |
| Revive Home Services | 5.0★ (2) | 31 km |
| Skytech Insulation Services | 5.0★ (2) | In Ajax |
| Superb Markham Spray Foam Insulation | 5.0★ (2) | 22 km |
| VMP HOME | 4.9★ (149) | In Ajax |
| White & Greer Co Ltd | 5.0★ (2) | 24 km |
| Whole Home Savings | 2.5★ (2) | 21 km |
| World Class Work Roofing and Insulation | 5.0★ (2) | 22 km |
How much do insulation contractors cost in Ajax?
US national ranges converted to CAD, not adjusted for Ajax. 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 Ajax insulation contractors
We scored 117 Ajax 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 Ajax 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 Ajax: frequently asked questions
Who is the best insulation contractor in Ajax?
By CR Score, the highest-ranked insulation contractor in Ajax, ON is Logik Roofing & Insulation Oshawa with a CR Score of 65/100. It has 4.9★ from 400 Google reviews. It is open 7 days a week. The Same Guys Insulation (#2) and DJM Spray Foam (#3) follow. We ranked 117 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in Ajax?
ContractorsRanked ranks 117 insulation contractors serving Ajax, ON. 5 of them are based in Ajax; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Ajax are open 24/7?
12 ranked insulation contractors in Ajax post 24/7 hours. The highest-ranked are Eco-therma Inc. (#5), Koala Insulation of Durham (#7) and Superior Care Home Services Inc. (#14). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Ajax work on weekends?
79 of 117 ranked insulation contractors post Saturday hours and 48 post Sunday hours. The highest-ranked open Saturdays are Logik Roofing & Insulation Oshawa (#1), The Same Guys Insulation (#2) and DJM Spray Foam (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Ajax?
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 Ajax. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Ajax insulation contractors have?
The median Google rating among 117 rated insulation contractors in Ajax is 5.0★, with a median of 17 reviews. Logik Roofing & Insulation Oshawa has the most, 400 reviews, and ranks #1. 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 Ajax count in this ranking?
Yes, if they are within 40 km of the Ajax 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 Ajax
- October 2026: CR Scores recalculated for 117 insulation contractors serving Ajax.
More insulation contractors and Ajax pages
Insulation contractors near Ajax
- Insulation contractors in Pickering, ON144 ranked
- Insulation contractors in Oshawa, ON45 ranked
- Insulation contractors in Markham, ON180 ranked
- Insulation contractors in Scarborough, ON181 ranked
- Insulation contractors in Uxbridge, ON77 ranked
- Insulation contractors in East York, ON187 ranked
- Insulation contractors in Willowdale, ON187 ranked
- Insulation contractors in North York, ON186 ranked
- Insulation contractors in Richmond Hill, ON184 ranked
- Insulation contractors in Toronto, ON189 ranked
Other trades in Ajax
- Roofers in Ajax675 ranked
- Plumbers in Ajax560 ranked
- Electricians in Ajax521 ranked
- HVAC contractors in Ajax573 ranked
- General contractors in Ajax787 ranked
- Painters in Ajax155 ranked
- Landscapers in Ajax202 ranked
- Handymen in Ajax99 ranked
- Kitchen remodelers in Ajax616 ranked
- Bathroom remodelers in Ajax518 ranked
- Flooring contractors in Ajax336 ranked
- Tile installers in Ajax86 ranked
- Drywall contractors in Ajax18 ranked
- Concrete contractors in Ajax235 ranked
- Fence contractors in Ajax239 ranked
- Deck builders in Ajax285 ranked
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- Window installers in Ajax433 ranked
- Gutter installers in Ajax160 ranked
- Solar installers in Ajax74 ranked
- Garage door repair companies in Ajax123 ranked
- Foundation repair companies in Ajax298 ranked
- Tree services in Ajax170 ranked
- Masonry contractors in Ajax184 ranked
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- Home builders in Ajax729 ranked
- Demolition contractors in Ajax100 ranked
- All contractors in Ajax