9 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Winchester: Knauf Insulation, CR Score 59/100; 4.2★ from 87 Google reviews; open 24/7.
Best for emergencies (open 24/7): Emergency Water and Mold Removal, posts 24/7 hours; ranked #7 of 9.
Most-reviewed: Home Paramount Pest Control, 189 Google reviews at 4.6★, the most of 9 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 Winchester insulation contractors are ranked here by CR Score, from ten published factors. 3 are open 24/7, 4 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.6★ across 9 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Knauf Insulation | 59 | 4.2★ (87) | Martinsburg, 17 mi away | 24/7 | Overall |
| 2 | Home Paramount Pest Control | 57 | 4.6★ (189) | Winchester | Sat | Most reviews |
| 3 | Handyman Connection of Winchester | 55 | 4.8★ (139) | Winchester | — | — |
| 4 | Creative Conservation, Inc. - Winchester | 55 | 4.2★ (5) | Winchester | — | — |
| 5 | Davenport Insulation | 53 | 3.0★ (23) | Winchester | — | — |
| 6 | HomeGuard Foam and Foundation | 52 | 4.8★ (25) | Martinsburg, 17 mi away | — | — |
| 7 | Emergency Water and Mold Removal | 50 | 5.0★ (25) | Martinsburg, 22 mi away | 24/7 | Emergencies |
| 8 | Petti Pest Control | 49 | 4.7★ (25) | Martinsburg, 23 mi away | 24/7 | — |
| 9 | Four State Insulation Co | 49 | 2.3★ (3) | Charles Town, 16 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: 4.2★ from 87 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Winchester
Ranked #2 because of its Google rating and review volume: 4.6★ from 189 Google reviews, the most in Winchester.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Winchester
Ranked #3 because of its Google rating and review volume: 4.8★ from 139 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Winchester
Ranked #4 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Winchester
Ranked #5 because of its Google rating and trade focus: 3.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Martinsburg, 17 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Martinsburg, 22 mi away
Ranked #7 because of its Google rating and review volume: 5.0★ from 25 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Martinsburg, 23 mi away
Ranked #8 because of its Google rating and review volume: 4.7★ from 25 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charles Town, 16 mi away
Ranked #9 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
National price ranges in USD, not adjusted for Winchester. 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 9 Winchester 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 Winchester 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 |