I had a good experience with Seaside. Daniel was very friendly. They were honest, fairly priced, and did a good job.
Filters, comparison and saved drafts need JavaScript. All listed businesses and their direct contact links remain available. Browse by trade and city.
4.2 from 29 Google reviews · Sep 30
Seaside Heating & Air Conditioning
HVAC company based in Oceanside.
CSLB active · Oct 14Licensed 20+ yearsBond + workers’ comp on fileNot yet owner-confirmedLicense covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning and C-38 Refrigeration.
Contact options
Services
Listed by the business. Confirm your job when you call.
A/C system maintenance
A/C system repair
Ductless heating & A/C services
HVAC duct & vent installation
HVAC duct & vent repair
HVAC system maintenance
Heating system installation
Heating system maintenance
Heating system repair
Install AC
Install thermostat
Repair HVAC
Thermostat repair
Commercial And Residential HVAC Service
Duct Work
Energy Management
Heating And Air Conditioning
HVAC Equipment
HVAC Support
New Construction
Preventative Maintenance Packages
Preventative Maintenance Programs
Repairs And Maintenance
Zoning Systems
No matching service labels
Ask the business about your job.
Copy this question. Nothing is sent.
Reviews
29 reviews on Google
Google · Sep 30, 2026
Newest review Jul 23, 2026 · 1 review in the last 3 months (as of Oct 10, 2026)
Newest reviews on GoogleWord for word · read Oct 10, 2026
I was looking for a report on my homes current condition - my address and contact were wrong in their system. When I called to address wires may have been crossed the customer service was terrible. It seems that customers are a complete inconvenience to the person that answers their phones. I do not recommend this company if you value typical customer service.
Incompetent company. They’ve been to my house four times and now a 5th for the same AC issue and still haven’t fixed it. They always show up late, misdiagnosed the problem, and insisted on replacing the entire unit when the truth was simply a kink in the line. On top of that, they constantly track dirt into the house, forcing me to clean and mop after every visit. They don’t wear shoe covers or gloves, which is basic standard practice with any professional company. To make matters worse, they even ruined a brand new hand towel in the guest bathroom, which is rarely, if ever, used by bleaching it while cleaning their tools. Save yourself the frustration and look elsewhere
I had Ryan quote all new AC systems as two had failed and only one still worked and asked about replacing the forced air heaters. He quickly provided a very competitive quote and I decided to get all 3 systems replaced with new AC / Heat pump / and forced air heaters for a little less than most competitors wanted for basic systems. I took a week to install 3 systems and they guys were thoughtful and courteous and cleaned up well. The units are quite, efficient, and kept us cool all summer looking forward to using the heaters in the winter.
I had a great experience with this company. After looking around for a furnace for my townhome, I finely found a far price and I love my new heater.
Call them last minute in a pinch as there was a mix-up with our Contractor Building our Adu. They came out same day the next day they had line sets installed so we could pass inspection on the preliminary. Today they finish the installation and I can't say enough about these guys. You can tell that these technicians know what they're doing and enjoy it, and the pricing has always seemed Fair to be honest I have never shopped as the quotes they have given me seemed well under what industry standards are supposed to be. I will never use another HVAC company again. We used them years ago on an upgrade to the main house and we were happy then. They've also been out multiple times for routine service and maintenance and whether we're paying a lot for a new system or a little bit for a tune-up they have the same attitude great customer service and again in a pinch they really pulled us out of the sling.
I'm disappointed in Seaside. No follow up regarding replacement estimate. I called and they said they would check and call me back. Still no follow up or call. It's been 5 days. Also, The Tech left a part on the ground (found by 2nd company I called) and his analysis was wrong regarding what needs replacing. I guess Seaside doesn't need the work or care one way or another.
Initially my experience was very good with this company, office was responsive and informative. My job was small ( charge a mini-split with refrigerant) however they agreed to do the job because of my proximity to their shop. When tech arrived he didn't ask many questions and neither did I since I assumed he had notes passed on from the office. Long story short he released the refrigerant from the system before pressure testing and it let all the refrigerant out because there was a leak. The kinked line was not their fault but I think he should have tested the lines before letting the refrigerant out. I understood that the tech that was sent out doesn't repair line sets, that's ok. I followed up to make a return appointment for the repair of the line and recharge again. The appointment was a week out which was understandable. Here is my biggest complaint, the day before my new appointment the office called to reschedule for a few days later stating the tech that was scheduled wasn't qualified for the repair. I accepted that because I just wanted it done correctly. The new appoint was set for arrival a few days later between 8am-12pm, 10:30 am arrrived I called just to make sure that I had the date right. The office lady didn't reply to me and nervously put me on hold, the owner answered and said that the guy they scheduled this time couldn't handle the job either. Said I would get a call back at some point from another tech. Never heard anything back. No apology for stringing me along for two weeks,nothing! Forgot to mention this minisplit unit is in an adu for my elderly parents who really needed the ac. Putting things together( heat just started) it is apparent that the company got busy with higher paying jobs.That part is understandable, but why not call back or initially just say they can't do the job? That is just not good business practice.
Had a great experience with Seaside. Steven, Kevin and team were professional and communicative throughout the whole process of installing mini-split units. They were thorough with install and left the home in clean condition after the work was done. I highly recommend using Seaside Heating & Air Conditioning.
1 of the newest 10 is a rating without text.
Ask for a recent reference
“Can you share a recent job like mine and a reference I can contact?”
Draft a messageReading prompts are CSDP guidance.
Rating source & date
Google Maps · Sep 30, 2026 · 3 photos on the listing.
Original Google source ↗How ratings are listedLicense & insurance
LicenseActive
CSLB #790514. C-20 Warm-Air Heating, Ventilating and Air-Conditioning: furnaces, heat pumps, air conditioning, ducts, vents and thermostats. C-38 Refrigeration: refrigerators, cold rooms and their controls. Plus 1 more class in the full record. Licensed since Jan 26, 2001: 25 years, longer than 80% of the other 105 licensed HVAC companies we list across North County. Expires Jan 31, 2027. The class should match your job.
Open CSLB record ↗Read Oct 14, 2026Contractor bondOn file
Bond with AMERICAN CONTRACTORS INDEMNITY COMPANY since Jan 1, 2023: the $25,000 bond every California contractor must carry. A bond is separate from liability insurance.
Open CSLB record ↗Read Oct 14, 2026Workers’ compInsured
Policy with SECURITY NATIONAL INSURANCE COMPANY through Mar 1, 2027. Ask whether it covers the crew on your job.
Open CSLB record ↗Read Oct 14, 2026General liabilityAsk for a certificate
CSDP doesn’t read liability insurance. Ask the business for a current certificate that covers your job.
Full record & sources
C-20 Warm-Air Heating, Ventilating and Air-Conditioning: furnaces, heat pumps, air conditioning, ducts, vents and thermostats
C-38 Refrigeration: refrigerators, cold rooms and their controls
License timeline
CSLB record ↗CSLB · status changes between these dates aren't shown
A license record isn’t an endorsement.
Permit history
| Issued | Type | Area | Job value | Permit |
|---|---|---|---|---|
| Jun 11, 2026 | Plumbing, mechanical or electrical (home) | Carlsbad | $19,000 | CBR2026-1368 |
| Oct 9, 2024 | Plumbing, mechanical or electrical (commercial) | Carlsbad | $40,000 | CBC2024-0312 |
By year, type and source
By year
By type
- Plumbing, mechanical or electrical (home)1
- Plumbing, mechanical or electrical (commercial)1
City of Carlsbad monthly Building Permits Issued reports ↗; Carlsbad permit numbers are searchable on the City's self-service portal ↗. Read Oct 3, 2026. Other cities' permits aren't counted yet.
Hours and location
- Mon–Fri
- 7:30 AM – 4:30 PM
- Sat–Sun
- Closed
Listing details & sources
Google Business Profile · Sep 30, 2026 · CSLB record
Original Google source ↗Request a changeView map
What we checked and when
How we listBefore you call
All guidesOther HVAC companies in Oceanside
All 35, A–ZIs this your business?
Confirm your listing free. Check what homeowners see, fix anything that’s off, and send photos of your work. About two minutes, no login, no card.
Confirm your listingNot the owner? Tell us what’s wrong.
- ListedDone
- License matchMatched to the CSLB record
- Owner-confirmedNot yet