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Best General Contractors in Fontana, CA (2026)

594 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Fontana: Flawless Construction, CR Score 89/100; 4.6★ from 168 Google reviews; open 24/7.

  2. 3

    Best for emergencies (open 24/7): Earthquake Bracing, Inc., posts 24/7 hours; ranked #3 of 594.

  3. 6

    Most-reviewed: specialty builders, 414 Google reviews at 4.4★, the most of 594 ranked; ranked #6.

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

594 Fontana general contractors are ranked here by CR Score, from 8 published factors. 32 are open 24/7, 226 open Saturdays and 131 open Sundays, based on posted hours. The median Google rating is 4.8★ across 594 rated businesses.

Top 10 general contractors in Fontana at a glance

Top 10 general contractors in Fontana at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Flawless Construction894.6★ (168)Riverside, 9 mi away24/7Overall
2Groundworks874.9★ (135)Ontario, 11 mi awaySat · Sun · Evenings—
3Earthquake Bracing, Inc.865.0★ (25)San Bernardino, 7 mi away24/7Emergencies
4American West Home Inspection, Inc.865.0★ (179)Beaumont, 21 mi awaySat · Sun · Evenings—
5Quality Conservation Services864.7★ (224)Montclair, 15 mi away——
6specialty builders854.4★ (414)FontanaSunMost reviews
7Solis Home Improvement Corp.845.0★ (5)Fontana24/7—
8Cloud City Construction Inc.845.0★ (20)Chino, 15 mi away24/7—
9BPP Construction845.0★ (36)Bloomington, 9 mi awaySat · Sun · Evenings—
10USA Pro Service Inc GC, Air&Heat, Electric,844.9★ (38)San Dimas, 21 mi away24/7—

The 594 best general contractors in Fontana, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

  1. Ranked #1 in Fontana

    Based in Riverside, 9 mi away

    89/100CR Score

    Ranked #1 because of its Google rating and availability: 4.6★ from 168 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.6★ from 168 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3360 6th St, Riverside, CA 92501
  2. Based in Ontario, 11 mi away

    87/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 135 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 135 Google reviews
    Hours
    Mon–Fri 4 AM–8 PM · Sat 5 AM–8 PM · Sun 7 AM–8 PM
    Address
    1850 S Parco Ave, Ontario, CA 91761
  3. Based in San Bernardino, 7 mi away

    86/100CR Score

    Ranked #3 because of its Google rating and availability: 5.0★ from 25 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 25 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3548 Ironweed Dr, San Bernardino, CA 92407
  4. Based in Fontana

    85/100CR Score

    Ranked #6 because of its Google rating and review volume: 4.4★ from 414 Google reviews, the most Google reviews on this list (414).

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.4★ from 414 Google reviews
    Hours
    Mon–Thu 9 AM–6 PM · Fri 9 AM–2 PM · Sat closed · Sun 9 AM–6 PM
    Address
    9161 Sierra Ave. suite 201A, Fontana, CA 92335
  5. Based in Bloomington, 9 mi away

    84/100CR Score

    Ranked #9 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 36 Google reviews
    Hours
    Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–5 PM
  6. Based in Corona, 17 mi away

    84/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 67 Google reviews
    Hours
    Mon–Sun 7 AM–7 PM
    Address
    1611 Pomona Rd, Corona, CA 92878
  7. Based in San Bernardino, 9 mi away

    83/100CR Score

    Ranked #14 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 9 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    668 W 28th St, San Bernardino, CA 92405
  8. Based in Riverside, 14 mi away

    82/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.2★ from 220 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.2★ from 220 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    11801 Pierce St Ste 200, Riverside, CA 92505
  9. Based in Riverside, 6 mi away

    82/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “General contractor”.

    Based on 5 of 8 factors; credentials, recency and availability not yet collected.

    • 4.8★ from 22 Google reviews
    Address
    1995 Agua Mansa Rd, Riverside, CA 92509
  10. Based in Riverside, 10 mi away

    81/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 19 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6753 Brockton Ave, Riverside, CA 92506
  11. Based in Fontana

    81/100CR Score

    Ranked #22 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 6 Google reviews
    Hours
    Mon–Thu 8 AM–4:30 PM · Fri 7 AM–3:30 PM · Sat–Sun 8 AM–4:30 PM
    Address
    10491 Calabash Ave, Fontana, CA 92337
  12. Based in Koreatown, 21 mi away

    81/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “General contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 38 Google reviews
    Hours
    Mon–Sat 7 AM–9 PM · Sun 8 AM–9 PM
  13. Based in Pomona, 19 mi away

    81/100CR Score

    Ranked #25 because of its Google rating and availability: 4.9★ from 11 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 11 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    920 W Mission Blvd, Pomona, CA 91766

General contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 594 ranked general contractors here; the rest are on their profiles.

general contractors in Fontana, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Jmark Enterprises, Inc815.0★ (25)11 mi
27Albert's General Construction805.0★ (17)In Fontana
28Loveridge Remodeling805.0★ (26)6 mi
29Rancho Cucamonga General Contractors805.0★ (9)8 mi
30Smart Home Contractor804.8★ (83)25 mi
31Crazy Monkey Construction804.7★ (12)9 mi
32Khan Construction Co.804.9★ (38)10 mi
33Tucker General Construction (TGC)805.0★ (9)9 mi
34iLLUMi-SOL Construction Services - ADU Design & Construction804.8★ (19)15 mi
35Romoland General Contractor & Pools805.0★ (4)2 mi
36Sassenberger Essential Drafting, ADUs, Room Additions, Remodels, New Construction794.9★ (12)24 mi
37BobsEcoFans.com795.0★ (40)14 mi
38Suncoast Post-Tension794.6★ (20)11 mi
39LIZARDI BUILDERS, CORP.795.0★ (6)13 mi
40Fontana General Contractors794.0★ (4)In Fontana
41Pagel Service Company794.8★ (21)14 mi
42Pedley Growers Nursery795.0★ (7)8 mi
43Paradise Exterior Designs795.0★ (26)9 mi
44KM Patio Covers794.7★ (11)11 mi
45JBC General Building Contractor795.0★ (35)13 mi
46Yorba Linda Remodel795.0★ (8)24 mi
47Monroe Diversified Companies Inc.794.8★ (32)11 mi
48J.Peace Builders Inc795.0★ (22)9 mi
49JL Biber Construction, Inc.795.0★ (26)11 mi
50Baghouse & Industrial Sheet Metal Services Inc.793.4★ (21)17 mi

Also serving Fontana

20 more general contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked general contractors serving Fontana
BusinessGoogle ratingDistance
ART ELECTRICAL CONSTRUCTION4.2★ (5)In Fontana
Camacho's Concrete5.0★ (6)In Fontana
Christian Construction4.2★ (5)In Fontana
DW professional coatings corp.5.0★ (18)In Fontana
EnergyEdge Electric5.0★ (7)In Fontana
Final Touch Construction4.4★ (33)In Fontana
K&L Contracting, Inc. - Structural Concrete & Bridge5.0★ (9)In Fontana
Mi Casa Restorations4.4★ (8)In Fontana
Narra Hills by Risewell Homes4.4★ (34)In Fontana
Nu-Action Glass Co3.0★ (5)In Fontana
Penhall Company Fontana4.6★ (8)In Fontana
Pepe's Painting Inc.4.8★ (23)In Fontana
Peridot Construction Group5.0★ (4)In Fontana
Retro Windows and Patio Doors LLC5.0★ (52)In Fontana
Rubio's Construction & Masonry2.3★ (3)In Fontana
Slater, Inc.4.1★ (15)In Fontana
The Conco Companies4.7★ (15)In Fontana
Top Garage Door's Repair Service Fontana4.0★ (4)In Fontana
Tropical Construction4.2★ (5)In Fontana
West Coast Home Remodeling4.9★ (62)In Fontana

How much do general contractors cost in Fontana?

Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.

How much do general contractors cost in Fontana?
JobLowTypicalHighBasisChecked
Kitchen remodel$15,240$28,190$43,470Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.04 Pacific factor (2025 Cost vs. Value Report)October 2026
Bathroom remodel$7,050$12,880$18,720Per bathroom: typical range of customer-reported remodels. US national range × 1.06 Pacific factor (2025 Cost vs. Value Report)October 2026

How to check a general contractor's license in California

In California, Contractors State License Board (CSLB) licenses B General Building contractor license (B-2 for residential remodeling).

Jobs of $1,000 or more in labor and materials (from January 1, 2025).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

How we ranked Fontana general contractors

We scored 594 Fontana general 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Fontana data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

General contractors in Fontana: frequently asked questions

Who is the best general contractor in Fontana?

By CR Score, the highest-ranked general contractor in Fontana, CA is Flawless Construction with a CR Score of 89/100. It has 4.6★ from 168 Google reviews. It is open 24/7. Groundworks (#2) and Earthquake Bracing, Inc. (#3) follow. We ranked 594 general contractors on 8 factors, last updated October 22, 2026.

How many general contractors are there in Fontana?

ContractorsRanked ranks 594 general contractors serving Fontana, CA. 7 of them are based in Fontana; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which general contractors in Fontana are open 24/7?

32 ranked general contractors in Fontana post 24/7 hours. The highest-ranked are Flawless Construction (#1), Earthquake Bracing, Inc. (#3) and Solis Home Improvement Corp. (#7). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which general contractors in Fontana work on weekends?

226 of 594 ranked general contractors post Saturday hours and 131 post Sunday hours. The highest-ranked open Saturdays are Flawless Construction (#1), Groundworks (#2) and Earthquake Bracing, Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a general contractor's license in California?

In California, Contractors State License Board (CSLB) handles licensing and covers B General Building contractor license (B-2 for residential remodeling). Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).

How much does kitchen remodel cost in Fontana?

Kitchen remodel typically costs $15,240 to $43,470, with $28,190 typical (Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.04 Pacific factor (2025 Cost vs. Value Report)). The range is adjusted for California. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Fontana general contractors have?

The median Google rating among 594 rated general contractors in Fontana is 4.8★, with a median of 7 reviews. specialty builders has the most, 414 reviews, and ranks #6. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank general contractors?

Each general 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.

Update log for Fontana

  1. October 2026: CR Scores recalculated for 594 general contractors serving Fontana.
  2. October 2026: 7 duplicate listings merged.

More general contractors and Fontana pages

Other trades in Fontana