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Commercial HVAC repair and service in Santa BarbaraKeep the doors open and the room comfortable.
Rooftop units, split systems and heat pumps for shops, offices, restaurants and rental buildings. Diagnosis first, a flat rate price, and a straight answer on how soon we can be there.
Last reviewed November 9, 2026 · CA Lic. #1086420
J & J's repairs, maintains and replaces commercial heating and air conditioning in Santa Barbara County, including rooftop package units and split systems. A commercial diagnostic is $250. We find the cause, quote a flat rate fix before we start, and tell you honestly how soon we can come. Property managers: tell us it's a tenant emergency when you call. Call (805) 699-1112.
- Diagnostic
- $250Commercial rate
- The fix
- Flat rateQuoted before we start
- After hours
- From $308When a technician is available
- Property managers
- Call (805) 699-1112Say it's a tenant emergency
What the building is telling you.
Commercial equipment runs longer hours than a home system and usually gets less attention. These are the calls we get.
| What you notice | Usual cause | What we do |
|---|---|---|
| The space is warm and the unit is running | Dirty coils or filters, a failed capacitor or low refrigerant | Diagnose on the roof, quote the fix, clean what's dirty |
| Airflow has dropped everywhere | A worn or broken blower belt, or loaded filters | Replace the belt, align the pulleys, change the filters |
| Water through the ceiling under the unit | A blocked condensate drain or a rusted drain pan | Clear the drain and check the pan and the roof curb |
| One side of the building is hot, the other cold | Thermostat placement, a stuck damper or a zone problem | Check the controls and the air balance |
| Bills climbed and nothing else changed | A stuck economizer, dirty coils or a failing compressor | Test the economizer and measure the system |
| The unit is 15 years old and repairs keep coming | The end of its useful life | A replacement estimate, free, next to the repair price |
Not sure what it needs?
Text a photo of the unit and its label. It often saves a trip.
Inside a rooftop unit.
Most small commercial buildings are heated and cooled by a single box on the roof. Switch modes to see how it works.
Cooling. The compressor runs, the cooling coil chills the supply air and the condenser fan throws the heat off the roof.
Free cooling. When it's cool outside, which is often here, the economizer opens and brings in outside air instead of running the compressor. A stuck economizer wastes this.
Heating. A gas burner or the heat pump warms the air, and the same blower sends it down into the space.
A motorized damper that brings in outside air. On the coast it can do much of the cooling for free when it works.
Commercial filters load quickly. Quarterly changes are a common schedule, and kitchens need more.
Chills and dries the air. A dirty coil cuts capacity and grows mildew.
Gas burners and a heat exchanger, or a heat pump with no gas at all.
Many rooftop blowers are belt driven. Belts stretch, crack and snap, and they're cheap to replace on a schedule.
The expensive end of the unit. Clean coils and correct charge are what keep it alive.
The frame the unit sits on. It seals the roof and connects the unit to the ducts below.
Power and gas shutoffs at the unit, so it can be serviced safely.
What we do.
Everything here is part of the job, not an extra.
Commercial repair
Rooftop units, split systems and heat pumps. Diagnosis first, then a flat rate price.
Scheduled maintenance
Filters, belts, coils, drains and economizers on a schedule that fits how hard the equipment works.
Replacement
New rooftop and split systems, with the crane, curb adapter, permit and startup planned so you lose as little open time as possible.
Hard to source parts
One of our reviews is a commercial project where the customer couldn't find the parts and we did.
Tenant emergencies
Tell us it's a tenant emergency when you call, and we'll say honestly how soon we can be there.
Fireplaces in commercial spaces
Hotel lobbies, restaurants and tasting rooms. We service those too.
In customers' words.
Real reviews for this kind of job, quoted word for word from Google. Read all of them by theme.
“Wow, Jeremy is highly responsive, extremely efficient, and knowledgeable. The AC was failing at our business going into a hot weekend. He answered my call, arrived the same day, fixed multiple problems, and got everything running in less than an hour. He also pointed out another system we were not using and demonstrated how to use it to improve the humidity in the building. All this was done after another company had worked on the same system for hours without finding a problem. What an incredible resource.”
“Jeremy was super helpful in completing an HVAC project I had at work that I was struggling to source the parts for. He came in and quite literally saved the day. His team is super professional. Highly recommend using J&J for your fireplace and HVAC needs!”
“I love using Jeremy and his team at J&J Heating. He has done at least 25 jobs for me over the last five years. As a Realtor in town, it means a lot to have an extremely dependable vendor and Jeremy always shows up on time does a fantastic job and my clients are always very happy with his work.”
“If I could give Jeremy 10 stars I would. We had an emergency on one of the hottest days of the year with renters staying at our home. In less than 24 hours we were up and running with a new compressor. He knew how desperate it was to make things right and he made it happen. We work in property management and having reliable honest subs is imperative to our success. Bravo and a standing ovation for a job well done and service that went above and beyond what anyone else would have done.”
“Called them at 6:45am and they were there by 8:30am for an emergency HVAC issue and were incredibly helpful and priced things appropriately despite the urgent action. Super appreciative of the fast affordable action for an acute issue.”
“Jeremy has done work on the most exclusive and high end residences in Santa Barbara, Montecito and its surrounding areas. His professionalism, work ethic and attention to detail make him and his company truly one of the best at what he does. We would highly recommend him for any of your heating and air conditioning projects.”
Want the same care at your house?
Estimates are free and every price is written down before we start.
Recent work.
These photos are from our jobs around Santa Barbara County.
From the first call to the last check.
You know the price before any work starts.
Call
Tell us the building, the equipment if you know it, and what it's doing.
Diagnose
On the roof or at the unit, with gauges and a meter.
Flat rate quote
The price of the fix before we do it, in writing for your records.
Fix and document
Repair, a full system check, and a written note of what was done.
What it costs, and what changes the price.
Commercial repairs start with a $250 diagnostic. Replacements and maintenance plans are quoted after we've seen the equipment.
- Commercial HVAC diagnosticThe same visit, for a commercial building.
- $250
- After-hours diagnosticWhen a technician is available. This is the starting rate.
- from $308
- The repair itselfFlat rate, quoted after the diagnostic and before any work.
- Quoted first
- Installation estimateWe visit, measure and give you one written flat rate number.
- Free
Rates checked November 2026
The equipment
Larger units have larger, costlier parts.
Roof access
A fixed ladder or roof hatch is quick. No access means bringing our own.
When the work can happen
Work scheduled around business hours takes planning and can change the price.
Parts supply
Common parts are on the truck. Some commercial parts have to be ordered.
See pricing, line by line for what goes into an estimate, and before you hire for licensing, permits and warranty.
Ready for a free written estimate?
One flat rate number, explained line by line.
Commercial HVAC service near you.
Salt air is hard on rooftop equipment along State Street, the Funk Zone, Coast Village Road and Carpinteria's Linden Avenue. Coils corrode faster here, so coil cleaning and inspection do more good than they would inland.
Our mild climate means an economizer can carry a building for much of the year. Many we open up are stuck or disconnected. Checking yours is one of the cheapest ways to lower a commercial power bill.
- Commercial HVAC service in GoletaCity of Goleta
- Commercial HVAC service in Hope RanchCounty of Santa Barbara
- Commercial HVAC service in Santa BarbaraCity of Santa Barbara
- Commercial HVAC service in MontecitoCounty of Santa Barbara
- Commercial HVAC service in SummerlandCounty of Santa Barbara
- Commercial HVAC service in CarpinteriaCity of Carpinteria
- Commercial HVAC service in BuelltonCity of Buellton
- Commercial HVAC service in SolvangCity of Solvang
- Commercial HVAC service in Santa YnezCounty of Santa Barbara
Common questions.
Anything else, call or text me.
Do you do commercial work?
Yes. We work on homes and on commercial buildings. Call (805) 699-1112 and tell us about the space, and we will say what we can do.
What does a commercial service call cost?
A commercial HVAC diagnostic is $250. After-hours diagnostics start at $308. The repair is quoted flat rate before we start.
How often should a rooftop unit be serviced?
At least twice a year for most buildings, with filters changed about every three months. Restaurants and dusty spaces need more.
Can you work outside business hours?
Often, by arrangement. After-hours appointments depend on a technician being available.
Do you work with property managers?
Yes. We work for property managers and Realtors across the county. For a tenant emergency, say so when you call and we'll tell you how soon we can come.
Which brands do you service?
We install and service Samsung, York, Guardian, Goodman, Bosch, Innovair and other major brands. Samsung is one of our preferred brands, especially for heat pumps.
Do commercial replacements need a permit?
Yes, in general, and commercial jobs often have added energy code requirements. The permit and its cost are listed on your proposal.
Call or text Jeremy.
Tell me about the room or the system and we'll set up a free estimate. For a repair, text me a photo of the unit first. It often saves a trip.
(805) 699-1112jnjfireplacepros@gmail.comOpen email app- Address
- 511 E Gutierrez St, Santa Barbara, CA 93103
- Hours
- Call or text to schedule. After-hours appointments when a technician is available.
- Estimates
- Free, with flat rate pricing
- Serving
- Santa Barbara County: Santa Barbara, Goleta, Hope Ranch, Montecito, Summerland, Carpinteria, Santa Ynez, Solvang and Buellton
- License
- CSLB Lic. #1086420 (C-20), active. Workers' comp insurance on file with the CSLB.