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88of 100 · v2

Nielson Mechanical Inc

HVAC Contractor · Fairfield, CA
Active license
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License1 record · Active license
Permits80 on file
Discipline / legalNo board discipline flag
BBBNot yet available
Phone(707) 437-5020
Address4987 Noonan Lane

Report verdict

Licensed & active (expires 2028-09-30) · No board discipline flag found in covered sources · 80 permits on file

88/100 HomeProFax Score — public-record factors only, not a rating of workmanship. How the score works Full report

The state board is the authority. A flag is a prompt to read the board record, not a verdict. Verify license status with the issuing board before you hire. See methodology and disclaimer & corrections.

What this report checks

✓ License
Checked
1 board record(s) · Active license
✓ Discipline & legal
Checked
No board discipline flag found in covered sources.
✓ Permits
Checked
80 permit(s) on file from covered city sources.
◐ Reviews & complaints
Where available
BBB where researched and approved HomeProFax reviews only; external ratings are linked below, not stored or scored.

Score breakdown

FactorPointsWhy
License status35/35
Active license on file with a state board
Discipline & legal flags20/20
No disciplinary flag on board record
Permit history20/20
80 permits on file
Reviews (BBB + HomeProFax)13/25
No BBB rating on file and no approved HomeProFax reviews yet (neutral). External ratings are linked below, not stored

A simple, transparent sum of public-record factors. How the score works. Not a rating of workmanship.

Source data as of: Report rebuilt from source files on 2026-10-19 · CSLB bond/workers' comp as of 2026-10-14 · most recent permit on file: 2024-11-06.

What we checked

LicenseCheckedCA Corporation #725457 · active
BondChecked$25,000 with JET INSURANCE COMPANY · as of 2026-10-14
Workers' compCheckedWorkers' Compensation Insurance (INSURANCE COMPANY OF THE WEST) · as of 2026-10-14
Years licensedCheckedLicensed since 1996
Business registrationNot available in CAState business registry not loaded yet
PermitsChecked80 permits on record
DisciplineCheckednone on record
OSHANot checked yetOSHA records not checked yet
Reviews & outside linksNot checked yetNo review lookup run yet
Contractor-providedNot checked yetNothing provided by the contractor yet

Public records as of their source dates. Board status is shown as reported by the board. Not a guarantee. Ask the contractor for their verified HomeProFax report.

Licenses

Licensed since 1996 (earliest original issue date on these state license records; not a business start date)

License #TypeStatusIssuedExpiresSource
CA 725457Corporation (C20| C43)
Workers' comp: Workers' Compensation Insurance (INSURANCE COMPANY OF THE WEST); Contractor bond: $25000 (JET INSURANCE COMPANY)		clear1996-07-262028-09-30State board

Bond & workers' comp

Contractor bond$25,000 · JET INSURANCE COMPANY · effective 2026-07-28
Workers' compWorkers' Compensation Insurance · INSURANCE COMPANY OF THE WEST · effective 2025-12-02 · expires 2026-12-02

Source: CSLB Public Data Portal (License Master), as of 2026-10-14. Verify current bond and insurance with CSLB and the insurer before you hire.

Building permits

DatePermitTypeAddressValue
2024-11-06202409160828otc alterations permit1720 Polk St$15,000
2019-01-22201901180808otc alterations permit3264 Mission St$21,000
2019-01-22201901180810otc alterations permit693 14th St$18,000
2014-11-24201406300073additions alterations or repairs658 Market St$255,525
2010-10-12201010122677otc alterations permit950 Mason St$3,250
2010-08-11201008118552otc alterations permit3251 20th Av$4,000
2010-06-03201006033720otc alterations permit1132 Valencia St$1,100
2010-05-26201005263266otc alterations permit685 03rd St$1,000
2010-05-03201005031585otc alterations permit558 Sacramento St$9,300
2010-04-29201004291314otc alterations permit704 Bush St$3,000
2010-03-10201003107882otc alterations permit1919 Union St$1,350
2010-03-08201003087744otc alterations permit415 Sansome St$950
2010-02-05201002055981otc alterations permit690 Mission St$4,000
2009-12-29200912293946otc alterations permit2127 Polk St$1,410
2009-12-29200912293943otc alterations permit230 California St$2,175
2009-12-10200912102992otc alterations permit814 Irving St$4,000
2009-12-10200912102994otc alterations permit473 Eucalyptus Dr$4,000
2009-11-12200911120985otc alterations permit360 Pine St$3,060
2009-08-21200908215292otc alterations permit680 02nd St$1,300
2009-08-14200908144910otc alterations permit1201 08th St$1
2009-07-22200907223193otc alterations permit246 Leavenworth St$830
2009-04-15200904156301otc alterations permit489 03rd St$1,300
2009-04-02200904025397otc alterations permit1283 09th Av$1,700
2009-04-02200904025435otc alterations permit2534 Mission St$1
2009-03-27200903264939otc alterations permit1800 Folsom St$1,640
2008-12-08200812087980otc alterations permit28 02nd St$1,034
2008-12-08200812087986otc alterations permit4769 Mission St$780
2008-12-08200812087983otc alterations permit1801 Vicente St$780
2008-11-19200811196951otc alterations permit2250 Chestnut St$3,500
2008-11-19200811196944otc alterations permit111 Rhode Island St$1,760
2008-11-19200811196947otc alterations permit350 Kansas St$830
2008-11-12200811126373otc alterations permit1700 Fillmore St$2,145
2008-11-12200811126381otc alterations permit1356 Mason St$900
2008-08-27200808199513otc alterations permit685 03rd St$1,500
2008-08-27200808199514otc alterations permit1397 Revere Av$1,100
2008-08-14200808149222otc alterations permit3481 18th St$1
2008-05-30200805303294otc alterations permit3991 24th St$1,800
2008-05-06200805061397otc alterations permit713 Commercial St$1,500
2008-05-01200805011055otc alterations permit425 Barneveld Av$1,200
2008-03-14200803147158otc alterations permit493 Pine St$1,350
2008-01-23200801233045otc alterations permit59 30th St$1,600
2007-11-14200711148069otc alterations permit1200 09th Av$1,200
2007-10-19200710165531otc alterations permit609 Hayes St$1,000
2007-10-19200710195915otc alterations permit1300 Fillmore St$3,600
2007-10-16200710024306otc alterations permit632 20th St$3,500
2007-10-16200710165527otc alterations permit414 Jessie St$1,800
2007-10-02200710024300otc alterations permit999 Brannan St$1,200
2007-10-02200710024298otc alterations permit845 Market St$1,500
2007-09-13200709132589otc alterations permit415 Stockton St$60,000
2007-09-13200709132587otc alterations permit1300 Fillmore St$1,000
2007-09-10200709102200otc alterations permit123 02nd St$900
2007-09-05200709051737otc alterations permit121 02nd St$900
2007-09-05200708311534otc alterations permit280 Valencia St$1,110
2007-09-05200708311532otc alterations permit330 01st St$1,115
2007-09-04200708311525otc alterations permit1201 08th St$3,000
2007-03-08200703085806otc alterations permit2534 Mission St$1,115
2007-03-08200703085809otc alterations permit2931 16th St$1,115
2007-02-28200702285110otc alterations permit525 Market St$1,600
2007-02-28200702285112otc alterations permit401 Gough St$650
2007-02-21200702214552otc alterations permit216 Townsend St$700
2007-01-29200701292815otc alterations permit655 Townsend St$650
2007-01-29200701292820otc alterations permit15 Boardman Pl$700
2006-11-27200611278486otc alterations permit230 California St$2,000
2006-09-25200609253199otc alterations permit2200 Lombard St$1
2006-09-19200609192692otc alterations permit2200 Lombard St$1,500
2006-09-19200609152454additions alterations or repairs845 Market St$1,750
2006-09-12200609122051otc alterations permit659 Townsend St$1,900
2006-08-17200608179723otc alterations permit3415 California St$2,000
2006-08-17200608179718otc alterations permit439 Balboa St$2,000
2006-08-17200608179722otc alterations permit3481 18th St$2,000
2006-06-14200606144024otc alterations permit601 Union St$1,350
2006-06-14200606144019otc alterations permit243 Ofarrell St$3,500
2006-05-04200605040766otc alterations permit560 Divisadero St$1
2006-03-29200603297768otc alterations permit560 Divisadero St$850
2006-01-19200601192535otc alterations permit663 Valencia St$850
2006-01-19200601192533otc alterations permit1419 Fillmore St$1,200
2006-01-19200601192534otc alterations permit518 Haight St$600
2006-01-19200601192528otc alterations permit731 Commercial St$1,500
2005-12-29200512291208otc alterations permit251 Rhode Island St$700
2005-08-18200508180701otc alterations permit2801 Leavenworth St$3,500

Source: DataSF (Building Permits + Building Permits Contacts)

Source: DataSF, City and County of San Francisco (Building Permits; Building Permits Contacts).

Discipline, complaints & legal

No board discipline or complaints found in our current sources. Federal court search (CourtListener): no state-consistent possible match in our last sample run, or not yet run for this contractor.

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Reviews

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Nielson Mechanical Inc · HVAC Contractor
Fairfield, CA
License on file: CA ••••5457
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Sources for this report

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