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First Defense InsulationInsulation contractor in Covina, CA

First Defense Insulation is an insulation contractor at 1343 N Grand Ave A, Covina, CA 91724, ranked #6 of 187 insulation contractors in Covina and rated 4.8 from 31 Google reviews. Open 7 days a week.

Covina, CAUpdated 0 paid placements in any rankingHow we rank

Call (626) 654-1710Website ↗

Key facts

Key facts about First Defense Insulation
Address1343 N Grand Ave A, Covina, CA 91724Get directions
Phone(626) 654-1710
Websitesteelehvacllc.com
HoursMonday to Friday: 8 AM – 9 PM; Saturday: 7 AM – 8 PM; Sunday: 8 AM – 10 PM
Google rating4.8 from 31 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves Covina and 11 towns within 25 miles: Citrus, Charter Oak, Glendora, Azusa, San Dimas, West Covina, Baldwin Park, Valinda, Walnut, La Verne and Diamond Bar.

Based in Covina, CAView on map

Opening hours

Opening hours for First Defense Insulation
DayHours
Monday8 AM – 9 PMevening
Tuesday8 AM – 9 PMevening
Wednesday8 AM – 9 PMevening
Thursday8 AM – 9 PMevening
Friday8 AM – 9 PMevening
Saturday7 AM – 8 PMevening
Sunday8 AM – 10 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • 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

First Defense Insulation compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
First Defense Insulation (this business)—854.8 (31)—YesYes
Attic Projects#4854.9 (584)—YesYes21.2 mi
Insulation Labs#5855.0 (135)—YesYes14.3 mi
Attic Projects#7845.0 (168)—YesYes17.5 mi

See all 187 ranked insulation contractors in Covina

Questions about First Defense Insulation

How is First Defense Insulation ranked in Covina?

First Defense Insulation is ranked #6 of 187 insulation contractors in Covina by CR Score, with 85 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity and profile completeness. No business can pay to change its rank.

What are First Defense Insulation’s hours?

First Defense Insulation is open 7 days a week. Its listed hours are Monday to Friday, 8 AM – 9 PM; Saturday, 7 AM – 8 PM; Sunday, 8 AM – 10 PM. On Saturdays it is open 7 AM to 8 PM, and on Sundays 8 AM to 10 PM. Hours come from the business listing; holiday hours may differ.

What areas does First Defense Insulation serve?

Serves Covina and 11 towns within 25 miles: Citrus, Charter Oak, Glendora, Azusa, San Dimas, West Covina, Baldwin Park, Valinda, Walnut, La Verne and Diamond Bar. 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 First Defense Insulation?

First Defense Insulation has a rating of 4.8 from 31 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 First Defense Insulation?

Call First Defense Insulation on (626) 654-1710. The business is at 1343 N Grand Ave A, Covina, CA 91724. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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