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Thornburgh Insulation IncInsulation contractor in St. Louis, MO

Thornburgh Insulation Inc is an insulation contractor at 6280 Knox Industrial Dr #10, St. Louis, MO 63139, ranked #14 of 48 insulation contractors in St. Louis and rated 5.0 from 5 Google reviews. Open Monday to Friday and Sunday.

St. Louis, MOUpdated 0 paid placements in any rankingHow we rank

Call (314) 644-5323Website ↗

Key facts

Key facts about Thornburgh Insulation Inc
Address6280 Knox Industrial Dr #10, St. Louis, MO 63139Get directions
Phone(314) 644-5323
Websitethornburgh-stl.com
HoursMonday to Friday: 7 AM – 8 PM; Sunday: 7 AM – 8 PM
Google rating5.0 from 5 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves St. Louis and 11 towns within 25 miles: Richmond Heights, Maplewood, Clayton, University City, Brentwood, Shrewsbury, Webster Groves, Glendale, Ladue, Affton and Olivette.

Based in St. Louis, MOView on map

Opening hours

Opening hours for Thornburgh Insulation Inc
DayHours
Monday7 AM – 8 PMevening
Tuesday7 AM – 8 PMevening
Wednesday7 AM – 8 PMevening
Thursday7 AM – 8 PMevening
Friday7 AM – 8 PMevening
SaturdayClosed
Sunday7 AM – 8 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays — no
  • Open Sundays

Typical insulation prices

Typical insulation prices
JobLowTypicalHigh
Attic insulationPer attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range$1,700$2,100$2,500

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby insulation contractors

Thornburgh Insulation Inc compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Thornburgh Insulation Inc (this business)—555.0 (5)—NoYes
Energy Stars Heating & Cooling Co#12564.9 (1,175)—YesNo8.9 mi
Air Comfort Service Inc.#13555.0 (1,159)—YesYes18.5 mi
Brady Pest Solutions#15544.8 (36)—YesNo16.8 mi

See all 48 ranked insulation contractors in St. Louis

Reviews

ContractorsRanked reviews

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Google

5.0from 5 Google reviews

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Questions about Thornburgh Insulation Inc

How is Thornburgh Insulation Inc ranked in St. Louis?

Thornburgh Insulation Inc is ranked #14 of 48 insulation contractors in St. Louis by CR Score, with 55 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Thornburgh Insulation Inc’s hours?

Thornburgh Insulation Inc is open Monday to Friday and Sunday. Its listed hours are Monday to Friday, 7 AM – 8 PM; Sunday, 7 AM – 8 PM. It is closed on Saturdays, and on Sundays 7 AM to 8 PM. Hours come from the business listing; holiday hours may differ.

What areas does Thornburgh Insulation Inc serve?

Serves St. Louis and 11 towns within 25 miles: Richmond Heights, Maplewood, Clayton, University City, Brentwood, Shrewsbury, Webster Groves, Glendale, Ladue, Affton and Olivette. The list is based on the business's location and the usual service radius for insulation. Confirm your address is covered when you call.

What do Google reviews say about Thornburgh Insulation Inc?

Thornburgh Insulation Inc has a rating of 5.0 from 5 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Thornburgh Insulation Inc?

Call Thornburgh Insulation Inc on (314) 644-5323. The business is at 6280 Knox Industrial Dr #10, St. Louis, MO 63139. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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