Updated: Apr 25, 2026
Location and Projects
Address
185 EASY ST SUITE G, Simi Valley, CA, 93065
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Carstairs Energy HVAC
Carstairs Energy HVAC at 185 EASY ST SUITE G, Simi Valley, CA 93065, held a HVAC/Mechanical Contractor license (#237435) with the California contractors license board with an expiration date of 03-31-1990. We last verified the license was expired on 04-24-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Carstairs Energy HVAC Contact Information
Phone Number: (805) 904-9048
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Address: 185 EASY ST SUITE G, Simi Valley, CA 93065
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Building Permits by Carstairs Energy HVAC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition 412 sf of patio area into living space and 50 sf of carport to living area 462 sf total. relocate 2 bedrooms remodel hall bathroom half bathroom and relocate kitchen 1, 444 sf. remove wall between dining and living room
Valuation:
$200,000
Permit #:
B20-0046
Status:
plancheck
Fee:
$10,361
Permit Type:
N/A
Building Type:
N/A
Rebuild new single family residence 4, 071 living area (1377 sf 1st fl 1210 sf to 2nd fl 1484 sf habitable basement) attached garage 561 sf 565 sf roofed open porch and 100 sf deck
Valuation:
$1,050,000
Permit #:
B17-0200
Status:
final
Fee:
$34,614
Permit Type:
N/A
Building Type:
N/A
Replacement single family dwelling (3 878 sf) with unconditioned underfloor storage space (1 679 sf) with decks (1 491 sf) and attached garages (1 048 sf). demolish pmt2015-00045 (#c0976 480 sq ft). (pmt2015-03256 - fire sprinklers)
Valuation:
$720,920
Permit #:
PMT2015-00044
Status:
issued
Fee:
$11,156
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen family room 993 sf to main house and new addition 679 sf to attached adu lower level with new deck 305 sf
Valuation:
$200,000
Permit #:
B19-1005
Status:
issued
Fee:
$9,774
Permit Type:
N/A
Building Type:
N/A
Addition of 83 sf and remodel of 157 sf to increase bedroom and addition an interior bathroom and closet. addition is under existing roof and will addition 2 skylights and electrical for bed and bathroom only
Valuation:
$20,000
Permit #:
B19-1070
Status:
issued
Fee:
$2,310
Permit Type:
N/A
Building Type:
N/A
Addition to duplex 196 sf to 957 blossom hill rd and covered porch 80 sf front with skylight and 196 sf sf addition remodel 120 sf (master bathroom bathroom 2 and hall closet with new covered porch entry 80 sf
Valuation:
$50,000
Permit #:
B19-0860
Status:
triage
Fee:
$978
Permit Type:
N/A
Building Type:
N/A
(n) single family residence 4, 571 sf living area total (2, 388 sf lower floor 2, 183 sf upper floor) 751 sf attached garage 424 sf covered porch
Valuation:
$1,045,000
Permit #:
B16-0821
Status:
final
Fee:
$40,649
Permit Type:
N/A
Building Type:
N/A
Addition living area 147 sf (n) garage 13 sf remodel (e) 2, 998 sf (n) 56 sf porch (service change 200 amps) (temp power pole)
Valuation:
$490,000
Permit #:
B16-0816
Status:
final
Fee:
$12,924
Permit Type:
N/A
Building Type:
N/A
Interior remodel to kitchen laundry room and master bathroom 1050 sf. replace main service panel 200 amps
Valuation:
$100,000
Permit #:
B20-0075
Status:
issued
Fee:
$3,813
Permit Type:
N/A
Building Type:
N/A
Addition of 499 sf and remodel 1147 sf to single family residence tear off (e) comparable r/r with comparable 1147 sf
Valuation:
$130,000
Permit #:
B17-0968
Status:
final
Fee:
$8,499
Permit Type:
N/A
Building Type:
N/A
Kitchen and dining room remodel 502 sf. relocate laundry (washer and dryer) and replace windows
Valuation:
$80,000
Permit #:
B20-0112
Status:
final
Fee:
$2,943
Permit Type:
N/A
Building Type:
N/A
New tesla level 2 (240 v) 50a ev charger in garage
Valuation:
N/A
Permit #:
BEL2305361
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cwp electric (2 fans) to exisitng patio in backyard bpt150043
Valuation:
N/A
Permit #:
BEL2203768
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition of 44 sf and remodel 300 sf for bedroom and bathroom
Valuation:
$50,000
Permit #:
B19-0401
Status:
final
Fee:
$2,493
Permit Type:
N/A
Building Type:
N/A
Residential addition (241 s.f.) & remodel:(1050 s.f.) extension walls new living room relocate kitchen & family room with addition of 282 sf deck
Valuation:
$50,000
Permit #:
B19-0223
Status:
issued
Fee:
$6,477
Permit Type:
N/A
Building Type:
N/A
New single family residence 1598 sf 1st fl 1008 sf 2nd fl with attached garage 679 sf and 100 sf roofed open porch (lot 2)(resubmittal with 1212 sf habitable basement)
Valuation:
$550,000
Permit #:
B13-0872
Status:
final
Fee:
$33,380
Permit Type:
N/A
Building Type:
N/A
Rebuild new single family residence 3 270 sf (1 912 sf 1st floor 1 358 sf 2nd floor) 640 sf attached garage 401 sf porch (service 400 amps and temp power pole)
Valuation:
$1,000,000
Permit #:
B15-0778
Status:
final
Fee:
$31,441
Permit Type:
N/A
Building Type:
N/A
(n) 131 sf garage/storage on first floor (n) 406 sf bed addition to second floor (service upgrade 200 amps)
Valuation:
$75,000
Permit #:
B16-0947
Status:
final
Fee:
$5,604
Permit Type:
N/A
Building Type:
N/A
Convert garage/storage area to habitable 55 sf; remove lower floor interior walls and remodel game room and bathroom 405 sf; new covered patio and bbq 15 sf (revision - addition roofed open porch 207 sf and main level deck 268 sf)
Valuation:
$55,000
Permit #:
B12-0348
Status:
final
Fee:
$3,608
Permit Type:
N/A
Building Type:
N/A
Addition 530 sf to expand master bedroom and closet and addition master bathroom; remodel kitchen and (e) bathrooms reconfigure interior to addition laundry room and half bathroom and addition roof trusses over living area; relocate entry porch 29 sf; relocate main electrical service panel; 1/25/12 replace sewer line from house to property line
Valuation:
$200,000
Permit #:
B11-0686
Status:
final
Fee:
$8,175
Permit Type:
N/A
Building Type:
N/A
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Carstairs Energy HVAC License info
Inactive License
| License # | 237435 |
| Status | Inactive |
| State | California |
| Type | Electrical Signs |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Carstairs Energy HVAC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 926170 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Carstairs Energy HVAC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Carstairs Energy HVAC, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Farm Fire & Casualty Company |
44
Permits
- Building permit records show that Carstairs Energy HVAC has worked on 44 permitted projects.
Carstairs Energy HVAC Employees
TC
Timothy Hugh Carstairs
Sole Owner
WC
William S Carstairs
Sole Owner