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A

Location and Projects

Address
5151 C PORT CHICAGO HWY, Concord, CA, 94520
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AC Systems HVAC/Mechanical Contractor

AC Systems, 5151 C Port Chicago Hwy, Concord, CA (Owned by: ALLEN VERN FARMER, KATHY LEE FARMER) holds a Warm Air Heating, Ventilating And Air Conditioning, Electrical license and 2 other licenses according to the California license board.

Their BuildZoom score of 104 ranks in the top 9% of 336,931 California licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring AC Systems, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

AC Systems Services

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Mechanical Work Sheet Metal Work HVAC

AC Systems Contact Information

Phone: (925) 676-2103 Edit
Address: 5151 C PORT CHICAGO HWY, Concord, CA 94520 Edit

AC Systems Concord

Quality

104
91st percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
AC Systems has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.

Activity

2 projects
 2025
4 projects
 2024
3 projects
 2023
Our building permit records indicate that AC Systems has worked on at least 9.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Experience

9 projects
 HVAC projects
6 projects
 Mechanical projects
Analyzing permits over the last 4 years shows that AC Systems mostly works on hvac project and mechanical project projects.

Pricing

1 project
 < $5k
6 projects
 $5k-$20k
1 project
 $20k-$50k
Value Not Public: 2.0 projects
The typical size of their permits is approximately $16,145. This graph shows the distribution of these job values.
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Building Permits by AC Systems

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Mechanical
5445 Carriage Dr, El Sobrante, CA, 94803
2025-05-20
Replace furnace addition heat pump
Valuation:
N/A
Permit #:
B25-00760
Status:
final
Fee:
$461
Permit Type:
Residential
Building Type:
N/A
Building - residential mechanical
1812 Eagle Peak Ave, Clayton, CA, 94517
2023-06-13
Split system hvac replacement **hers report may be required at final inspection**
Valuation:
$18,815
Permit #:
BIM23-007228
Status:
final
Fee:
$714
Permit Type:
N/A
Building Type:
N/A
Building - residential mechanical
599 Oakshire Pl, Alamo, CA, 94507
2022-02-10
Replace existing hvac with new. new accessible ductwork. **afue 95 seer 15. hers report required at final inspection**
Valuation:
N/A
Permit #:
BIM22-001470
Status:
final
Fee:
$858
Permit Type:
N/A
Building Type:
N/A
Furnace
2662 Tuscany Ct, Livermore, CA, 94550
2021-05-12
Replace furnace (96% afue) and air conditioning (15 seer) in same locations. (refrigerant locking caps are required per cmc 1106.14.)
Valuation:
$13,037
Permit #:
F200448
Status:
final
Fee:
$271
Permit Type:
Add/alt single fa...
Building Type:
N/A
Building - residential mechanical
4 Quail Xing, Moraga, CA, 94556
2023-05-10
Replace furnace/coil in attic and condenser in back yard **hers report may be required at final inspection**
Valuation:
$10,963
Permit #:
BIM23-005722
Status:
expired
Fee:
$521
Permit Type:
N/A
Building Type:
N/A
Residential mechanical-electrical-plumbing combo
23 Whitehall Dr, Orinda, CA, 94563
2021-10-01
Addition air conditioning to existing furnace. 3.5 ton 15 seer. replace ductwork. ** hers report required at final inspection**
Valuation:
N/A
Permit #:
BIMU21-011747
Status:
final
Fee:
$865
Permit Type:
N/A
Building Type:
N/A
Residential trade
1264 Pineto Pl, Pleasanton, CA, 94566
2021-12-10
(2) furnaces (81% afue 90k btus) & (2) air conditioning (seer 15 4 & 3 ton) like sized replacements (cheers)
Valuation:
$20,906
Permit #:
B21-3083
Status:
final
Fee:
$420
Permit Type:
N/A
Building Type:
N/A
Residential mechanical-electrical-plumbing combo
400 Tahos Rd, Orinda, CA, 94563
2021-08-27
Replace furnace addition air conditioning **hers report required at final inspection** **afue 0.81 seer 14**
Valuation:
N/A
Permit #:
BIMU21-010324
Status:
final
Fee:
$607
Permit Type:
N/A
Building Type:
N/A
Building permit
2026 Eunice St, Berkeley, CA, 94709
2025-06-11
No Description Available
Valuation:
N/A
Permit #:
ESR-2025-01774
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building permit
2026 Eunice St, Berkeley, CA, 94709
2025-05-19
No Description Available
Valuation:
N/A
Permit #:
ESR-2025-01519
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building - residential solar photovoltaic
1292 Sunset Loop, Lafayette, CA, 94549
2021-09-29
Furnish and install (12) module photovoltaic system and tie into existing electric service panel
Valuation:
$20,827
Permit #:
BIPVR21-011649
Status:
final
Fee:
$413
Permit Type:
N/A
Building Type:
N/A
Building - residential mechanical
29 Kellie Ann Ct, Orinda, CA, 94563
2021-11-18
Replace existing furnace **afue 0.8** **hers report required at final inspection**
Valuation:
N/A
Permit #:
BIM21-013776
Status:
final
Fee:
$366
Permit Type:
N/A
Building Type:
N/A
Building
1729 Vincente Rd, Concord, CA, 94519
2019-07-19
Remove (2) wall furnaces & (1) window air conditioning. addition central heating and cooling of afue 95% 60k fau seer 14 for 2 1/2 ton air conditioning
Valuation:
$13,795
Permit #:
B191474
Status:
final
Fee:
$306
Permit Type:
N/A
Building Type:
N/A
Building
3152 Fitzpatrick Dr, Concord, CA, 94519
2019-11-25
Replace wall furnace w new central system 81% fau for 2 1/2 ton 14 seer air conditioning. new 230v circuit to air conditioning 9-17-2019 added electrical service upgrade
Valuation:
$17,927
Permit #:
B192654
Status:
final
Fee:
$424
Permit Type:
N/A
Building Type:
N/A
Permit
1532 Summit Rd, Berkeley, CA, 94708
2020-12-24
Replace existing furnace with new 100k btu 97% efficiency. addition new heat pump 4 ton 17 seer. no duct work
Valuation:
N/A
Permit #:
B2020-04497
Status:
final
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
Building - residential mechanical
5127 Keller Ridge Dr, Clayton, CA, 94517
2022-08-31
Replace hvac **afue 80 seer 15**rgeorge
Valuation:
$14,363
Permit #:
BIM22-009899
Status:
final
Fee:
$617
Permit Type:
N/A
Building Type:
N/A
Building
5513 Michigan Blvd, Concord, CA, 94521
2020-06-10
Replace existing rooftop package unity w new 3 ton 60k btu 14 seer package unit. existing ductwork
Valuation:
$6,927
Permit #:
B200980
Status:
final
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Building
1915 Meredith Ct, Concord, CA, 94521
2019-09-04
Replace existing fau & air conditioning w new like size 90 k 80% furnace with 4 ton 14 seer air conditioning. ducts have asbestos no change
Valuation:
$8,934
Permit #:
B192546
Status:
final
Fee:
$257
Permit Type:
N/A
Building Type:
N/A
Residential mechanical-electrical-plumbing combo
1470 Dewing Ln, Walnut Creek, CA, 94595
2021-02-26
Replace furnace addition air conditioning. 81 afue 15 seer
Valuation:
N/A
Permit #:
BIMU21-002208
Status:
final
Fee:
$698
Permit Type:
N/A
Building Type:
N/A
Express mechanical permit - residential
19 Kilkenny Pl, Alameda, CA, 94502
2024-07-17
Furnish and install new mini split system
Valuation:
$9,045
Permit #:
MW24-0182
Status:
final
Fee:
$580
Permit Type:
N/A
Building Type:
N/A

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