26 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Hartford: Erickson Spray Foam, CR Score 55/100; 5.0★ from 43 Google reviews; open Saturdays until 12 PM.
Best for emergencies (open 24/7): Larson and Keeney Home Services, posts 24/7 hours; ranked #3 of 26.
Most-reviewed: Modern Exterior Roofing, 699 Google reviews at 4.9★, the most of 26 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
26 Hartford insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 9 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.9★ across 26 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Erickson Spray Foam | 55 | 5.0★ (43) | Cedarburg, 15 mi away | Sat | Overall |
| 2 | Modern Exterior Roofing | 55 | 4.9★ (699) | Waukesha, 23 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Larson and Keeney Home Services | 54 | 4.9★ (161) | Pewaukee, 19 mi away | 24/7 | Emergencies |
| 4 | Premier North Insulation | 54 | 4.3★ (12) | West Bend, 15 mi away | Sat · Sun · Evenings | — |
| 5 | USA Insulation of Milwaukee | 53 | 4.3★ (39) | Milwaukee, 22 mi away | Sat · Sun | — |
| 6 | Danny's Drywall | 53 | 4.9★ (102) | Sheboygan, 24 mi away | — | — |
| 7 | Spraytech Insulators of Milwaukee | 53 | 5.0★ (26) | Milwaukee, 22 mi away | Sat | — |
| 8 | Builders' Insulation | 52 | 4.8★ (6) | Germantown, 14 mi away | — | — |
| 9 | Thermal Comfort, Inc. | 52 | 4.8★ (45) | Milwaukee, 22 mi away | — | — |
| 10 | Jaeger Drywall LLC & Spray Foam | 51 | 3.7★ (3) | West Bend, 12 mi away | — | — |
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 trade focus: 5.0★ from 43 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waukesha, 23 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 699 Google reviews, the most in Hartford.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pewaukee, 19 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 161 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Bend, 15 mi away
Ranked #4 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milwaukee, 22 mi away
Ranked #5 because of its Google rating and trade focus: 4.3★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sheboygan, 24 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 102 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milwaukee, 22 mi away
Ranked #7 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 Germantown, 14 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Milwaukee, 22 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 45 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Bend, 12 mi away
Ranked #10 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Delafield, 21 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 511 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Bend, 18 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oconomowoc, 19 mi away
Ranked #13 because of its Google rating and trade focus: 4.6★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grafton, 21 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 459 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sussex, 16 mi away
Ranked #15 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 Milwaukee, 24 mi away
Ranked #16 because of its Google rating and trade focus: 4.6★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookfield, 24 mi away
Ranked #17 because of its Google rating and review volume: 4.9★ from 41 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Delafield, 18 mi away
Ranked #18 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 Watertown, 20 mi away
Ranked #19 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in West Bend, 14 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Wholesaler”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milwaukee, 24 mi away
Ranked #21 because of its Google rating and review volume: 4.4★ from 86 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookfield, 25 mi away
Ranked #22 because of its Google rating and review volume: 4.3★ from 167 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Milwaukee, 24 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookfield, 20 mi away
Ranked #24 because of its Google rating and review volume: 3.7★ from 74 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brookfield, 23 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Dry wall contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Hartford. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | $1,700 | $2,100 | $2,500 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range | October 2026 |
We scored 26 Hartford 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 23, 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 Hartford 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 |