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Location and Projects

Address
651 Portal St, Cotati, CA, 94931
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Next Day Air & Heating

From first call to final walkthrough, Next Day Air & Heating focuses on comfort, reliability, and clear communication for homeowners in Cotati, California. Whether your system needs a fast fix or a full upgrade, our team handles AC Repair & Installation and Heating Repair & Installation with careful diagnostics and clean craftsmanship. We also work to improve Indoor Air Quality by recommending balanced solutions that fit your home’s layout and lifestyle, and we service and replace Water Heaters to keep daily routines running smoothly. If you’ve been looking for dependable hvac service, we make scheduling simple and keep you informed at every step. Our technicians aim to leave your home better than they found it, with tuned systems, tidy workspaces, and straightforward options so you can make confident decisions. Count on us for responsive appointments, honest guidance, and year-round support designed to keep your home comfortable and efficient without the stress.

From BuildZoom:

Next Day Air & Heating at 651 Portal St, Cotati, CA 94931, has a BuildZoom score of 0 and ranks in the top 99% of 336,931 California contractors.

If you are thinking of hiring Next Day Air & Heating, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Next Day Air & Heating Services

Start a project today:
HVAC

Next Day Air & Heating Contact Information

Phone: (707) 600-6986
Address: 651 Portal St, Cotati, CA 94931

Next Day Air & Heating Cotati

Quality

Alert*
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Next Day Air & Heating, log in and update your license info in the “Edit Profile” tab.

Activity

42 projects
 2025
7 projects
 2024
2 projects
 2023
Our building permit records indicate that Next Day Air & Heating has worked on at least 51.0 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

51 projects
 HVAC projects
23 projects
 Mechanical projects
Analyzing permits over the last 4 years shows that Next Day Air & Heating mostly works on hvac project and mechanical project projects.

Pricing

3 projects
 < $5k
23 projects
 $5k-$20k
2 projects
 $20k-$50k
Value Not Public: 23.0 projects
The typical size of their permits is approximately $10,000. 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 Next Day Air & Heating

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.

Commercial mechanical - alteration remodel or repair
522 B St, Petaluma, CA, 94952
2025-06-19
Remove 3 large portable electric baseboard space heaters and install 2 single zone mini splits and 1 heat pump split system
Valuation:
$25,000
Permit #:
MECC-2025-0018
Status:
complete
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Water heater replacement
10 Blackwood Ct, Napa, CA, 94558
2025-03-20
Existing type: gas - proposed type: gas - existing size: 31-40 - replacement size: less than 55 gal - proposed location: garage
Valuation:
$8,000
Permit #:
BR25-00398-WTH
Status:
issued
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Building permit no plan check
1255 Hiatt Rd, Cloverdale, CA, 95425
2025-03-27
Replace package unit on the ground like for like with a new one
Valuation:
N/A
Permit #:
BLD25-1678
Status:
issued
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Mechanical residential
276 Fairhills Dr, San Rafael, CA, 94901
2025-09-02
Install new furnace like for like and new duct work r8
Valuation:
$15,000
Permit #:
M2501-049
Status:
final
Fee:
$125
Permit Type:
Furnace ducting c...
Building Type:
N/A
Residential hvac changeout
712 Yorkshire Rd, Petaluma, CA, 94954
2025-05-27
Replace furnace air conditioning and water heater
Valuation:
$16,000
Permit #:
MECR-2025-0168
Status:
issued
Fee:
$227
Permit Type:
N/A
Building Type:
N/A
Building permit no plan check
833 Limerick Ln, Healdsburg, CA, 95448
2025-03-13
2 ton heat pump fan coil and condenser and 4 r8 duct runs
Valuation:
N/A
Permit #:
BLD25-1412
Status:
issued
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Mechanical
7254 Brenda Way, Rohnert Park, CA, 94928
2025-05-28
Hvac changeout to ductless heat pump 30k btu
Valuation:
$10,000
Permit #:
ME25-0082
Status:
final
Fee:
$148
Permit Type:
General mechanical
Building Type:
N/A
Mechanical
1319 Gaspar Ct, Rohnert Park, CA, 94928
2025-04-24
Replace existing air conditioning like for like
Valuation:
$7,500
Permit #:
ME25-0078
Status:
resubmittal required
Fee:
$271
Permit Type:
HVAC
Building Type:
N/A
Furnace air conditioning
1410 Hill Ave, Napa, CA, 94559
2025-05-08
R/r furnace & ac; replace partial ducting
Valuation:
N/A
Permit #:
M2505-0006
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical residential
462 Hickory Ln, San Rafael, CA, 94903
2025-04-10
Replace package unit on roof like for like
Valuation:
$12,000
Permit #:
M2504-022
Status:
plancheck
Fee:
$125
Permit Type:
Air conditioning ...
Building Type:
N/A
Building permit no plan check
1749 Willowside Rd, Santa Rosa, CA, 95401
2025-03-27
Replace air conditioning unit like for like
Valuation:
N/A
Permit #:
BLD25-1683
Status:
issued
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Mechanical
1459 Gold Way, Rohnert Park, CA, 94928
2025-03-17
Replacing furnace like for like 80%afue
Valuation:
$9,000
Permit #:
ME25-0055
Status:
issued
Fee:
$120
Permit Type:
HVAC
Building Type:
N/A
Building permit no plan check
21680 Starrett Hill Dr, Monte Rio, CA, 95462
2025-01-22
Single family dwelling - replace mini split system like for like
Valuation:
N/A
Permit #:
BLD24-7571
Status:
final
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Mechanical
4495 Filbert Ct, Rohnert Park, CA, 94928
2025-06-24
Replace 5 duct runs with r8 flex duct
Valuation:
$3,876
Permit #:
ME25-0096
Status:
final
Fee:
$144
Permit Type:
General mechanical
Building Type:
N/A
Building permit no plan check
17311 Willow Creek Rd, Occidental, CA, 95465
2025-03-17
Replacing 80% furnace like for like
Valuation:
N/A
Permit #:
BLD25-1491
Status:
canceled
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Residential hvac changeout
116 Stanley St, Petaluma, CA, 94952
2024-08-02
Replacing 1 gas furnace with 1 ducted air handler 2 ductless indoor and 1 outdoor heat pump
Valuation:
$12,500
Permit #:
MECR-2024-0231
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical
937 Edith Ct, Rohnert Park, CA, 94928
2025-06-25
Replace old hvac system with new ducted mini split system
Valuation:
$21,000
Permit #:
ME25-0112
Status:
issued
Fee:
$147
Permit Type:
HVAC
Building Type:
N/A
Heating ventilation and air conditioning replacement (hvac)
10 Blackwood Ct, Napa, CA, 94558
2025-03-20
Heating only
Valuation:
$12,000
Permit #:
BR25-00397-HVC
Status:
issued
Fee:
$301
Permit Type:
N/A
Building Type:
N/A
Furnace air conditioning
1920 Kansas Ct, Napa, CA, 94559
2025-09-03
Replace air conditioning coil and furnace. replace tankless water heater
Valuation:
$11,400
Permit #:
M2408-0039
Status:
issued
Fee:
$274
Permit Type:
N/A
Building Type:
N/A
Residential hvac changeout
405 5th St, Petaluma, CA, 94952
2023-10-04
Remove and replace gas furnace; install heat pump condensing unit and evaporator coil
Valuation:
$13,933
Permit #:
MECR-2023-0357
Status:
triage
Fee:
$252
Permit Type:
N/A
Building Type:
N/A

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