5 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ada: JB Spray Foam Insulation LLC, CR Score 83/100; 5.0★ from 9 Google reviews; open Saturdays until 5 PM.
Most-reviewed: Residential Insulation, 12 Google reviews at 5.0★, the most of 5 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Ada insulation contractors are ranked here by CR Score, from 8 published factors. 2 open Saturdays, based on posted hours. The median Google rating is 5.0★ across 5 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | JB Spray Foam Insulation LLC | 83 | 5.0★ (9) | Findlay, 20 mi away | Sat | Overall |
| 2 | Premier Insulation Contracting | 80 | 4.2★ (6) | Lima, 8 mi away | — | — |
| 3 | Spray Foam Genie of Western Ohio | 79 | 5.0★ (3) | Northwood, 15 mi away | Sat · Evenings | — |
| 4 | Residential Insulation | 79 | 5.0★ (12) | Delphos, 24 mi away | — | Most reviews |
| 5 | Thermal Technology Inc | 75 | 4.8★ (4) | Lima, 15 mi away | — | — |
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.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based in Lima, 8 mi away
Ranked #2 because of its Google rating and trade focus: 4.2★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based in Northwood, 15 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Delphos, 24 mi away
Ranked #4 because of its Google rating and review volume: 5.0★ from 12 Google reviews, the most Google reviews on this list (12).
Based in Lima, 15 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Insulation contractor”.
National price ranges in USD, not adjusted for Ada. 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 5 Ada 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 Ada 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 |