Updated: Feb 14, 2026
Location and Projects
Address
428 N Buchanan Cir, Martinez, CA, 94553
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Connolly Heating & Air Conditioning
Connolly Heating & Air Conditioning, 428 N Buchanan Cir, Martinez, CA holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 117 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Connolly Heating & Air Conditioning, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Connolly Heating & Air Conditioning Contact Information
Address: 428 N Buchanan Cir, Martinez, CA 94553
Connolly Heating & Air Conditioning Martinez
Quality
117
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Connolly Heating & Air Conditioning has a BuildZoom score of 117, which places them above 99% of 336,931 contractors in California.
Activity
|
5 projects
|
2025 |
|
9 projects
|
2024 |
|
28 projects
|
2023 |
Our building permit records indicate that Connolly Heating & Air Conditioning has worked on at least
42.0 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.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
39 projects
|
HVAC projects |
|
22 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Connolly Heating & Air Conditioning mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
< $5k |
|
25 projects
|
$5k-$20k |
|
10 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
The typical size of their permits is approximately $16,250. 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.
Connolly Heating & Air Conditioning Reviews
5 out of 5 stars, based on
1
review
-
By Steven W.May 10, 2017Verified Hire
Building Permits by Connolly Heating & Air Conditioning
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove (2) 2carrier furnace/ac systems and recycle. install carrier infinity series hybrid heat pump systems.: heat pump (outdoor unit) (2) model #25vna460a003 carrier infinity series variable speed 24 seer 5 ton. cut and flush refrigerant piping and braze into new unit. use existing fuse protected disconnect box sealed to exterior. new weather tight conduit with seal tight fittings. ... see more
Valuation:
$54,000
Permit #:
BIM24-004498
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
R/r old system and install air handler heat pump
Valuation:
$18,404
Permit #:
B25-1750
Status:
final
Fee:
$242
Permit Type:
N/A
Building Type:
N/A
Single family dwelling replace furnace and air conditioning. like for like. seer: 14 afue: 80% climate zone 12 hers report reuired st final inspection**-dnsilva
Valuation:
$13,672
Permit #:
BIM22-014062
Status:
final
Fee:
$593
Permit Type:
N/A
Building Type:
N/A
Replacing (2) air conditioning condenser (2) furnace (2) seer 14 (2) afue 80% **afue 80% hers report required at final**rgeorge
Valuation:
$31,800
Permit #:
BIM22-004318
Status:
final
Fee:
$1,041
Permit Type:
N/A
Building Type:
N/A
Install carrier infinity series system. infinity series 5 stage 5 ton up to 18 seer. air handler
Valuation:
$2,750
Permit #:
BIM23-001234
Status:
final
Fee:
$329
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning. like for like. **climate zone 12 hers report requuired at final inspection**-dnsilva
Valuation:
$21,208
Permit #:
BIM22-014468
Status:
final
Fee:
$786
Permit Type:
N/A
Building Type:
N/A
Air conditioning coil furnace duct replacement. 40 gal. water heater replacement. 4 ton 14 seer 80% afue
Valuation:
$36,755
Permit #:
F220017
Status:
issued
Fee:
$361
Permit Type:
N/A
Building Type:
N/A
Ductless mini split - heat pump mini split
Valuation:
$25,700
Permit #:
OTC24-0064
Status:
final
Fee:
$311
Permit Type:
HVAC - split system
Building Type:
N/A
Replacing (2)ac condenser (2)furnace, (2)seer 14 (2)afue 80% **hers report required at final**rgeorge
Valuation:
$37,100
Permit #:
BIM22-004307
Status:
expired
Fee:
$1,084
Permit Type:
N/A
Building Type:
N/A
Wire flex return air upgrade: complete wire flex return air upgrade r6/r8. replacing furnace *hers report may be required at final inspection**
Valuation:
$10,295
Permit #:
BIM24-003737
Status:
issued
Fee:
$546
Permit Type:
N/A
Building Type:
N/A
Replace (2) air conditioning condenser (2)furnace seer 14 afue 80%**hers report required at final** rgeorge
Valuation:
N/A
Permit #:
BIM22-003228
Status:
final
Fee:
$834
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2023-08-10
Replace furnace 80% afue air conditioning 15 seer
Valuation:
$18,350
Permit #:
M23-029555
Status:
final
Fee:
$229
Permit Type:
N/A
Building Type:
N/A
C/o existing system w heatpump airhandler system and ducts
Valuation:
N/A
Permit #:
ME25-00297
Status:
final
Fee:
$225
Permit Type:
HVAC
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2023-06-14
Replace furnace 80% air conditioning 14.3 seer
Valuation:
$21,518
Permit #:
M23-028999
Status:
final
Fee:
$232
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2024-09-11
Replace air conditioning furnace seer 17
Valuation:
$20,775
Permit #:
M24-030969
Status:
final
Fee:
$230
Permit Type:
N/A
Building Type:
N/A
Replacing air conditioning coil and furnace. **afue 80 seer 15**rgeorge
Valuation:
$13,500
Permit #:
BIM23-006717
Status:
final
Fee:
$627
Permit Type:
N/A
Building Type:
N/A
Residential hvac - heating ventilation air conditioning
2023-01-20
Replace and install air conditioning 16 seer
Valuation:
$12,238
Permit #:
M22-028023
Status:
final
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
Replace furnace air conditioning and coil;like for like same location
Valuation:
$22,500
Permit #:
B2204-0044
Status:
issued
Fee:
$547
Permit Type:
Fau
Building Type:
N/A
Replace furnace (closet) 80% afue 90k btu's air conditioning and coil (backyard) 14 seer 4 ton (calcerts)
Valuation:
$15,000
Permit #:
B21-3512
Status:
final
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Replace hvac like for like in single family dwelling **afue 80 seer 14** **hers report required at final inspection**
Valuation:
N/A
Permit #:
BIM21-012641
Status:
final
Fee:
$738
Permit Type:
N/A
Building Type:
N/A
Recent Buildzoom Projects
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Connolly Heating & Air Conditioning License info
Verified License
| License # | 658796 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Connolly Heating & Air Conditioning at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
117
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
410
Permits
- Building permit records show that Connolly Heating & Air Conditioning has worked on 410 permitted projects.
Connolly's was recommended to me by my neighbor after he replaced his AC,Heating system. He was very pleased by their expertise, professionalism, and customer care, from a locally owned business. I found this to be true for me, too. Inspite of the amount of rain, that resulted in standing water under our house, which prevented the abatement company from removing asbestos. They were constantly on top of getting the job done.
I would recommend them enthusiastically.