90/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 31 Google reviews, open 24/7.
- 5.0★ from 31 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 303 Garfield St, Oceanside, CA 92054
Best Insulation Contractors in Oceanside, CA (2026)
36 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Oceanside: Optimal Insulation Oceanside inc., CR Score 90/100; 5.0★ from 31 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Vista Insulation Inc., posts 24/7 hours; ranked #3 of 36.
- 5
Most-reviewed: Attic Projects Company, 888 Google reviews at 4.9★, the most of 36 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
36 Oceanside insulation contractors are ranked here by CR Score, from 8 published factors. 4 are open 24/7, 24 open Saturdays and 20 open Sundays, based on posted hours. The median Google rating is 5.0★ across 36 rated businesses.
Top 10 insulation contractors in Oceanside at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Optimal Insulation Oceanside inc. | 90 | 5.0★ (31) | Oceanside | 24/7 | Overall |
| 2 | EcoGuard Pest Management | 89 | 4.9★ (637) | San Marcos, 11 mi away | Sat · Sun · Evenings | — |
| 3 | Vista Insulation Inc. | 88 | 5.0★ (31) | Vista, 10 mi away | 24/7 | Emergencies |
| 4 | EcoGuard Pest Management | 87 | 4.9★ (538) | Coronado, 19 mi away | Sat · Sun · Evenings | — |
| 5 | Attic Projects Company | 87 | 4.9★ (888) | San Diego, 25 mi away | Sat · Sun | Most reviews |
| 6 | Attic Advisor | 86 | 4.8★ (90) | Carlsbad, 7 mi away | Sat · Sun · Evenings | — |
| 7 | All Type Insulation Services, Inc. | 86 | 4.9★ (65) | Carlsbad, 7 mi away | Sat · Sun · Evenings | — |
| 8 | Miramar SD Insulation Inc. | 84 | 5.0★ (31) | San Diego, 25 mi away | 24/7 | — |
| 9 | Phoenix insulation inc | 83 | 5.0★ (44) | Escondido, 19 mi away | 24/7 | — |
| 10 | HomeShield Pest Control - Carlsbad | 82 | 5.0★ (235) | Carlsbad, 23 mi away | Sat · Evenings | — |
The 36 best insulation contractors in Oceanside, ranked
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.
Based in San Marcos, 11 mi away
89/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 637 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 637 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 120 N Pacific St, San Marcos, CA 92069
Based in Vista, 10 mi away
88/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 31 Google reviews, open 24/7.
- 5.0★ from 31 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2244 S Santa Fe Ave Ste H1, Vista, CA 92084
Based in Coronado, 19 mi away
87/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 538 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 538 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
Based in San Diego, 25 mi away
87/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 888 Google reviews, the most Google reviews on this list (888).
- 4.9★ from 888 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun 7 AM–4 PM
- Address
- 7840 Dunbrook Rd, San Diego, CA 92126
Based in Carlsbad, 7 mi away
86/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 90 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 90 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat–Sun 9 AM–7 PM
- Address
- 1902 Wright Pl #200, Carlsbad, CA 92008
Based in Carlsbad, 7 mi away
86/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 65 Google reviews
- Hours
- Mon–Sun 9 AM–7 PM
- Address
- 1902 Wright Pl #200, Carlsbad, CA 92008
Based in San Diego, 25 mi away
84/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 31 Google reviews, open 24/7.
- 5.0★ from 31 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7950 Silverton Ave Ste 110, San Diego, CA 92126
Based in Escondido, 19 mi away
83/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 44 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1971 E Washington Ave #3, Escondido, CA 92027
Based in Carlsbad, 23 mi away
82/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 235 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 235 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
Based in San Clemente, 21 mi away
81/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 26 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 520 S El Camino Real, San Clemente, CA 92672
#12 JD Pest
Based in Oceanside
81/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–12 PM · Sun closed
- Address
- 892 Boxwood Ct S, Oceanside, CA 92058
Based in San Clemente, 22 mi away
81/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 23 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 1271 Puerta Del Sol, San Clemente, CA 92673
Based in San Clemente, 24 mi away
80/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 24 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 629 Camino De Los Mares, San Clemente, CA 92673
#15 Attic Shield
Based in Escondido, 17 mi away
80/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 56 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat closed · Sun 9 AM–2 PM
- Address
- 632 Rock Springs Rd, Escondido, CA 92025
Based in San Marcos, 14 mi away
80/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 508 Glenheather Dr, San Marcos, CA 92069
Based in Temecula, 25 mi away
78/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 532 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 532 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 42274 Rio Nedo Rd unit 5, Temecula, CA 92590
Based in San Diego, 25 mi away
78/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 9 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 9389 Dowdy Dr, San Diego, CA 92126
#19 Attic Guard
Based in Escondido, 15 mi away
78/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 76 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun closed
- Address
- 510 Corporate Dr # F, Escondido, CA 92029
Based in San Diego, 24 mi away
78/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 5660 Eastgate Dr, San Diego, CA 92121
Based in San Diego, 20 mi away
78/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 10806 Willow Ct, San Diego, CA 92127
Based in San Diego, 21 mi away
77/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 16130 W Bernardo Dr, San Diego, CA 92127
Based in Poway, 24 mi away
76/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 104 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 104 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 14781 Pomerado Rd #151, Poway, CA 92064
#24 Attic Guys Inc
Based in Encinitas, 15 mi away
76/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 8 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–12 PM · Sun closed
Based in Carlsbad, 16 mi away
75/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 8 AM–6 PM · Sun closed
All 36 insulation contractors
#1 to #25 are shown in full above. Here are #26 to #36, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Reaction - Spray Foam System Specialists | 74 | 5.0★ (8) | 11 mi |
| 27 | Empire Insulation | 73 | 3.0★ (8) | 25 mi |
| 28 | Select Home Improvements San Diego | 73 | 4.8★ (36) | 25 mi |
| 29 | Guardian Roofs | 73 | 4.7★ (74) | 12 mi |
| 30 | OJ Insulation | 73 | 4.4★ (26) | 16 mi |
| 31 | John Air Duct Cleaning & HVAC Valley Center | 71 | 4.9★ (15) | 23 mi |
| 32 | Attic Projects - Corporate Office | 71 | 5.0★ (11) | 25 mi |
| 33 | Saber | 71 | 4.7★ (86) | 9 mi |
| 34 | G&G Indoor Services | 69 | 5.0★ (130) | 25 mi |
| 35 | Wall 2 Wall Painting & Services | 67 | 5.0★ (5) | 23 mi |
| 36 | A & P Drywall Inc | 64 | 5.0★ (4) | 18 mi |
Also serving Oceanside
19 more insulation contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| All Seasons Insulation | 2.0★ (1) | 7 mi |
| Attic Insulation | 6 mi | |
| Attic Seal Insulation | 5.0★ (1) | 24 mi |
| Cal Com Insulation Inc | In Oceanside | |
| CJP Insulation LLC | 21 mi | |
| Crawl Space And Attic Pro - Carlsbad, CA | Attic And Crawl Space Cleaning | Insulation contractor | 7 mi | |
| E'YAttic Insulation Services | 23 mi | |
| Eco Experts Construction Corp. | 9 mi | |
| Eco Shield Insulation | 5.0★ (1) | 18 mi |
| GR8 Energy | 17 mi | |
| IN N OUT Builders | 23 mi | |
| Insul Tech Innovations | 5.0★ (1) | 25 mi |
| Insulate Plus | 5.0★ (2) | In Oceanside |
| Insulation Commandos of North San Diego | 5.0★ (1) | 6 mi |
| JC Insulation | 5.0★ (1) | 18 mi |
| RER Masonry Brick's & Dryer Vent Cleaning Ltd | 4.0★ (5) | In Oceanside |
| Smart Spray Foam Insulators | 14 mi | |
| Superior Insulation & Acoustics | 5.0★ (2) | 16 mi |
| The Attic Depot | 5.0★ (2) | 8 mi |
How much do insulation contractors cost in Oceanside?
National price ranges in USD, not adjusted for Oceanside. 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 |
How we ranked Oceanside insulation contractors
We scored 36 Oceanside 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 Oceanside 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 |
Insulation contractors in Oceanside: frequently asked questions
Who is the best insulation contractor in Oceanside?
By CR Score, the highest-ranked insulation contractor in Oceanside, CA is Optimal Insulation Oceanside inc. with a CR Score of 90/100. It has 5.0★ from 31 Google reviews. It is open 24/7. EcoGuard Pest Management (#2) and Vista Insulation Inc. (#3) follow. We ranked 36 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Oceanside?
ContractorsRanked ranks 36 insulation contractors serving Oceanside, CA. 2 of them are based in Oceanside; the rest serve it from nearby towns. Another 19 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Oceanside are open 24/7?
4 ranked insulation contractors in Oceanside post 24/7 hours. The highest-ranked are Optimal Insulation Oceanside inc. (#1), Vista Insulation Inc. (#3) and Miramar SD Insulation Inc. (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Oceanside work on weekends?
24 of 36 ranked insulation contractors post Saturday hours and 20 post Sunday hours. The highest-ranked open Saturdays are Optimal Insulation Oceanside inc. (#1), EcoGuard Pest Management (#2) and Vista Insulation Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Oceanside?
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 Oceanside. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Oceanside insulation contractors have?
The median Google rating among 36 rated insulation contractors in Oceanside is 5.0★, with a median of 29 reviews. Attic Projects Company has the most, 888 reviews, and ranks #5. 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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Oceanside count in this ranking?
Yes, if they are within 25 mi of the Oceanside 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.
Update log for Oceanside
- October 2026: CR Scores recalculated for 36 insulation contractors serving Oceanside.
More insulation contractors and Oceanside pages
Insulation contractors near Oceanside
- Insulation contractors in Camp Pendleton South, CA29 ranked
- Insulation contractors in Carlsbad, CA42 ranked
- Insulation contractors in Vista, CA39 ranked
- Insulation contractors in Camp Pendleton North, CA30 ranked
- Insulation contractors in Encinitas, CA62 ranked
- Insulation contractors in San Marcos, CA49 ranked
- Insulation contractors in Fallbrook, CA28 ranked
- Insulation contractors in Solana Beach, CA70 ranked
- Insulation contractors in Escondido, CA61 ranked
- Insulation contractors in Valley Center, CA40 ranked
Other trades in Oceanside
- Roofers in Oceanside469 ranked
- Plumbers in Oceanside384 ranked
- Electricians in Oceanside257 ranked
- HVAC contractors in Oceanside288 ranked
- General contractors in Oceanside363 ranked
- Painters in Oceanside92 ranked
- Landscapers in Oceanside110 ranked
- Handymen in Oceanside56 ranked
- Kitchen remodelers in Oceanside245 ranked
- Bathroom remodelers in Oceanside229 ranked
- Flooring contractors in Oceanside172 ranked
- Tile installers in Oceanside45 ranked
- Drywall contractors in Oceanside9 ranked
- Concrete contractors in Oceanside132 ranked
- Fence contractors in Oceanside68 ranked
- Deck builders in Oceanside55 ranked
- Siding contractors in Oceanside58 ranked
- Window installers in Oceanside288 ranked
- Gutter installers in Oceanside56 ranked
- Solar installers in Oceanside375 ranked
- Garage door repair companies in Oceanside85 ranked
- Foundation repair companies in Oceanside62 ranked
- Tree services in Oceanside92 ranked
- Masonry contractors in Oceanside91 ranked
- Water damage restoration companies in Oceanside608 ranked
- Home builders in Oceanside389 ranked
- Demolition contractors in Oceanside35 ranked
- All contractors in Oceanside