14 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Peterborough: Just Spray It, CR Score 67/100; 5.0★ from 134 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Active Environmental Safety, posts 24/7 hours; ranked #2 of 14.
Most-reviewed: GWC Insulation, 40 Google reviews at 5.0★, the most of 14 ranked after Just Spray It; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
14 Peterborough insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 5 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 5.0★ across 14 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Just Spray It | 67 | 5.0★ (134) | Peterborough | Sat · Sun | Overall |
| 2 | Active Environmental Safety | 64 | 5.0★ (26) | Peterborough | 24/7 | Emergencies |
| 3 | Drywall Kings | 61 | 5.0★ (20) | Peterborough | — | — |
| 4 | Central Ontario Spray Foam | 58 | 5.0★ (20) | Cobourg, 24 km away | Sat · Sun · Evenings | — |
| 5 | Vera Drywall - Kawartha Lakes & Toronto | 58 | 5.0★ (24) | Cobourg, 19 km away | Sat | — |
| 6 | KB Insulators | 57 | 4.4★ (20) | Peterborough | — | — |
| 7 | D & F Insulation | 57 | 4.8★ (16) | Peterborough | — | — |
| 8 | Refine Drywall | 57 | 5.0★ (27) | Barrie, 15 km away | — | — |
| 9 | Stevens Insulation Services | 57 | 4.9★ (34) | Cobourg, 18 km away | — | — |
| 10 | Jackson Brothers Spray Foam | 56 | 5.0★ (20) | Prince Edward, 40 km away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 5.0★ from 134 Google reviews, the most in Peterborough.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough
Ranked #2 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough
Ranked #3 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Cobourg, 24 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cobourg, 19 km away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough
Ranked #6 because of its Google rating and trade focus: 4.4★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough
Ranked #7 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 15 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cobourg, 18 km away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Prince Edward, 40 km away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cobourg, 31 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Peterborough
Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cobourg, 23 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cobourg, 39 km away
Ranked #14 because of its Google rating and review volume: 4.6★ from 14 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
17 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 |
|---|---|---|
| 123 HVAC Canada | 5.0★ (52) | In Peterborough |
| Boyd Heating And Cooling | 5.0★ (54) | In Peterborough |
| Canada's Restoration Services | 1.0★ (1) | In Peterborough |
| Canadian Wall Systems Inc | 5.0★ (2) | 9 km |
| Chemong Insulation | In Peterborough | |
| DIETRICH HOMES | 5.0★ (59) | In Peterborough |
| Kidd Bros Construction Ltd | 4.3★ (6) | In Peterborough |
| LoganPax Contracting | 5.0★ (3) | In Peterborough |
| Munro's Drywall & Contracting | 3.6★ (42) | In Peterborough |
| Munro's Drywall and Contracting | 1.0★ (2) | 19 km |
| Skip The Dump - Junk Removal Service & Demolition | 4.9★ (235) | In Peterborough |
| Super Roofers | 4.0★ (3) | In Peterborough |
| TerraTrax Building Solutions | 5.0★ (1) | In Peterborough |
| Thermo Seal Insulation System | 8 km | |
| Viking Insulation Company Inc. | 22 km | |
| Whitney Spray Foam | 33 km | |
| Worbo Inc. | In Peterborough |
US national ranges converted to CAD, not adjusted for Peterborough. 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 |
We scored 14 Peterborough 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 Peterborough 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 |