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Best Insulation Contractors in Ottawa, KS (2026)

5 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Ottawa: Green Factor Insulation, CR Score 54/100; 4.9★ from 348 Google reviews.

  2. 2

    Most-reviewed: Schendel Pest Services, 252 Google reviews at 4.7★, the most of 5 ranked after Green Factor Insulation; ranked #2.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

5 Ottawa insulation contractors are ranked here by CR Score, from ten published factors. The median Google rating is 4.7★ across 5 rated businesses.

Top 5 insulation contractors in Ottawa at a glance

Top 5 insulation contractors in Ottawa at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Green Factor Insulation544.9★ (348)Lawrence, 21 mi away—Overall
2Schendel Pest Services504.7★ (252)Lawrence, 23 mi away—Most reviews
3Cromwell Environmental464.7★ (72)Lawrence, 25 mi away——
4Lawrence Remodeling Company, LLC444.8★ (18)Lawrence, 25 mi away——
5JSM Tile Works LLC402.3★ (3)Lawrence, 25 mi awayEvenings—

The 5 best insulation contractors in Ottawa, 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.

  5. #5 JSM Tile Works LLC

    Based in Lawrence, 25 mi away

    40/100CR Score

    Ranked #5 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “Tile contractor”.

    • 2.3★ from 3 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat–Sun closed
    Address
    608 Folks Rd, Lawrence, KS 66049
    View profile for JSM Tile Works LLC(785) 865-9609

How much do insulation contractors cost in Ottawa?

National price ranges in USD, not adjusted for Ottawa. Each row names its basis and the month we checked it.

How much do insulation contractors cost in Ottawa?
JobLowTypicalHighBasisChecked
Attic insulation$1,700$2,100$2,500Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national rangeOctober 2026

How we ranked Ottawa insulation contractors

We scored 5 Ottawa 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 November 3, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Ottawa data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Insulation contractors in Ottawa: frequently asked questions

Who is the best insulation contractor in Ottawa?

By CR Score, the highest-ranked insulation contractor in Ottawa, KS is Green Factor Insulation with a CR Score of 54/100. It has 4.9★ from 348 Google reviews. Schendel Pest Services (#2) and Cromwell Environmental (#3) follow. We ranked 5 insulation contractors on ten factors, last updated November 3, 2026.

How much does attic insulation cost in Ottawa?

Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Ottawa. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Ottawa insulation contractors have?

The median Google rating among 5 rated insulation contractors in Ottawa is 4.7★, with a median of 72 reviews. Green Factor Insulation has the most, 348 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 Ottawa count in this ranking?

Yes, if they are within 25 mi of the Ottawa city center, 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.

Can insulation contractors pay to rank higher on ContractorsRanked?

No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.

Update log for Ottawa

  1. November 2026: CR Scores recalculated for 5 insulation contractors serving Ottawa.

More insulation contractors and Ottawa pages

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