Sonoma, CA's Trusted Emergency Hvac Repair Team — We Show Up and Get It Done
Your HVAC system runs hard. When it fails, the discomfort is immediate. HVAC Repair CO's licensed technicians reach Sonoma fast, carrying the most common replacement parts on every truck so most repairs close on the first visit.
Licensed & Insured
Same-Day Dispatch
Flat-Rate Pricing
All Brands Serviced
Who We Are
Built Around One Thing — Reliable Emergency Hvac Repair in Sonoma, CA
Homeowners and commercial property managers across Sonoma call HVAC Repair CO because we don't overpromise. We scope the problem, quote the fix, and get it done. Our trucks carry the refrigerant, capacitors, contactors, belts, and control boards to handle the calls we get every day — which means fewer return visits and faster relief for you.
Our service area covers Sonoma and the surrounding region, and our dispatch team answers live around the clock. Call at 2 a.m. with a failed heat exchanger, you'll hear a real person — not a machine — and have a technician rolling within the hour on most emergency calls.
24/7Live Dispatch
AllBrands Serviced
1stVisit Fix Rate
Don't Ignore These
When to Stop Waiting and Call HVAC Repair CO
Most catastrophic HVAC failures are preventable. Catching these symptoms early is the difference between a $200 capacitor swap and a $4,000 compressor replacement.
System Blows Warm Instead of Cold
Warm air from a running AC system almost always means a refrigerant issue or compressor failure — both require a certified HVAC tech, not a DIY fix.
Short-Cycling — Unit Clicks On and Off Repeatedly
Short-cycling wears out your compressor faster than almost any other operating condition. Common causes include an oversized unit, a dirty evaporator coil, refrigerant issues, or a faulty thermostat — a tech can narrow it down in one visit.
Unusual Noises — Banging, Screeching, or Rattling
A well-maintained HVAC system runs quietly. Any new or persistent noise — grinding, squealing, or metallic clanking — deserves immediate attention before a minor issue becomes a major failure.
Skyrocketing Energy Bills Without Explanation
A sudden jump in electricity bills without a change in usage patterns almost always means your system is losing efficiency — dirty coils, low refrigerant, clogged filters, or a struggling compressor all cause the unit to run longer cycles and burn more power.
Moisture or Refrigerant Leaks Around the Unit
Ice on refrigerant lines or the evaporator coil indicates airflow restriction or refrigerant undercharge. Oily residue near line sets or connections signals a refrigerant leak — which is both an environmental issue and a system killer.
Some Rooms Too Hot, Others Too Cold
Inconsistent temperatures across Sonoma homes usually trace back to duct leakage, improperly balanced dampers, a failing zone controller, or a unit that's the wrong size for the load. A proper load calculation and duct inspection can identify the cause.
What We Do
Every Emergency Hvac Repair Service Sonoma Homes and Businesses Need
One call to HVAC Repair CO handles repairs, installations, maintenance, and indoor air quality — so you're not managing three different contractors for one building.
Emergency HVAC Repair — 24/7 Rapid Response
When a system fails completely, the cost of waiting can run well beyond the repair itself — in discomfort, in pipe freeze risk, or in spoiled refrigerated inventory for commercial properties. Our emergency HVAC team covers Sonoma around the clock precisely because some problems can't hold until morning.
Compressor and contactor replacement
Refrigerant recharge and leak location
Capacitor and motor replacement
Control board diagnostics and repair
Heat exchanger inspection and emergency heat setup
HVAC Installation in Sonoma — Load Calculations, Not Guesswork
A system that's the wrong size for your home will never perform correctly — regardless of brand. It'll either short-cycle (oversized) or run continuously without hitting the set temperature (undersized). HVAC Repair CO runs Manual J load calculations on every installation to determine the exact BTU capacity your home or building requires before we recommend any equipment. We carry and install Carrier, Trane, Lennox, Goodman, Rheem, and York systems — and we'll tell you honestly which tier makes sense for your situation.
Manual J load calculation — every job
Central AC, heat pump, and gas furnace systems
Ductless mini-split installation (single and multi-zone)
Air handler and coil replacement
Ductwork modification and sealing
Post-install commissioning and airflow verification
Annual and Biannual Maintenance Agreements for Sonoma Homes
Our maintenance agreements prioritize your system in our schedule, lock in your rate, and include priority emergency dispatch — because maintenance customers who know their system is serviced regularly are also the first ones we want to reach when something goes sideways. The math is simple: a tune-up costs less than one repair call.
Refrigerant pressure and charge verification
Coil cleaning — evaporator and condenser
Electrical connection inspection and torque check
Blower motor amp draw and belt inspection
Thermostat calibration and control check
Condensate drain cleaning and flush
Full operating performance report after each visit
Commercial properties in Sonoma face IAQ challenges at scale — higher occupancy, more CO₂ buildup, stricter ASHRAE ventilation requirements. We assess, spec, and install commercial-grade IAQ solutions that integrate directly with your existing air handling equipment.
Rooftop Units, VAV Systems, and Commercial Refrigeration in Sonoma, CA
A commercial HVAC failure isn't just uncomfortable — it closes operations, violates health codes, and costs money every hour it's unresolved. HVAC Repair CO's commercial technicians are trained on rooftop package units, split systems, variable air volume (VAV) systems, chilled-water systems, and commercial kitchen refrigeration across all major manufacturers including Daikin, York, Trane, Carrier, and Lennox.
Rooftop package unit (RTU) service and replacement
VAV box, damper, and AHU repair
Chilled water system maintenance
Building automation system (BAS) integration
Commercial refrigeration service
Planned maintenance contracts for multi-site accounts
How HVAC Repair CO Handles Your Call — Start to Finish
We designed this process around the complaints we hear most often about HVAC companies. Vague schedules, surprise charges, and technicians who don't have the right parts — we built against all of it.
1
Call and Connect — Live Dispatch, No Bots
Call +1-844-611-2875 and you reach a live dispatcher — not a voicemail, not a booking widget. They'll take your address in Sonoma, confirm your system type, and get a technician rolling.
2
Technician Dispatch — Tracked ETA Provided
Every truck runs GPS dispatch so we can give you an accurate ETA, not a four-hour window that eats your whole day.
3
You See the Price Before We Touch Anything
Your technician runs a full diagnostic — not just the symptom that called you, but the whole system. You get a flat-rate quote before any repair begins. No work starts until you say so.
4
We Fix It, Test It, and Walk You Through What Changed
You sign off only when the system is running to your satisfaction. We leave the site clean, and our work carries a written labor warranty.
Why HVAC Repair CO
What Makes HVAC Repair CO Different From Every Other HVAC Company in Sonoma, CA
Every HVAC company in Sonoma claims to be reliable and affordable. Here's what we actually do differently — and how you can verify it.
NATE-Certified Technicians on Every Call
NATE (North American Technician Excellence) certification is the industry's most rigorous credential for HVAC technicians. Every technician HVAC Repair CO dispatches to Sonoma holds current NATE certification — meaning they've passed manufacturer-independent, third-party exams on the systems they're working on.
Flat-Rate Pricing — Locked Before Work Starts
Hourly billing in HVAC has one predictable outcome: longer jobs cost more, and the customer has no visibility into what drives the total. We moved to flat-rate pricing for exactly this reason. You get a single number for the repair before the wrench turns — and that number doesn't change based on how long it takes.
Fully Stocked Trucks — Most Repairs Done on Visit One
For most standard repairs in Sonoma, the part is already on the truck. That means your system is running again the same day, not after a parts-order waiting period.
Written Labor Warranty — Every Repair
Parts warranties come from the manufacturer. Our labor warranty comes from us. Together, they mean you're protected against both component failure and installation error for the full warranty window.
No High-Pressure Sales Tactics
Some HVAC companies train technicians to push system replacement on every call regardless of whether it's warranted. We don't. If a repair is the right answer for your system's age and condition, we'll tell you. If replacement is genuinely the better value, we'll tell you that too — with the math to back it up.
Commercial and Residential — One Company
One account relationship, one billing contact, one service history for all your properties across CA.
Our Commitment
What We Stand Behind When We Leave Your Property
We also guarantee the diagnostic accuracy of every service call. If we recommend a repair and after completing it the root cause turns out to be something different, we don't bill you for the additional correction — that's our diagnostic error, not yours.
This guarantee isn't a policy designed to be hard to invoke. It's a standard we hold ourselves to because our reputation in Sonoma depends on it. Call us, describe what's happening, and we'll make it right.
My AC went out on one of the hottest nights of the year. HVAC Repair CO had someone here by midnight and the unit was back up and running before 2 a.m. The price matched what I was quoted on the phone — no additions at the end. Genuinely impressive response.
DM
David M.
Sonoma, CA — Emergency AC Repair
★★★★★
Three HVAC companies told me I needed a full system replacement. HVAC Repair CO's tech ran an actual diagnostic, found a cracked secondary heat exchanger in the furnace, and replaced the heat exchanger assembly. Cost me a fraction of what the others quoted for a new system, and the furnace has run perfectly since. Glad I got a second — well, fourth — opinion.
KR
Karen R.
Sonoma, CA — Furnace Repair (Avoided Replacement)
★★★★★
We manage 12 residential units and have had HVAC Repair CO on a maintenance agreement for two years. Before that, we were dealing with 4–5 emergency calls a summer. Since starting the maintenance plan, we've had one emergency call in two years, and they caught it early enough that it was a $180 fix instead of a $1,400 compressor job. ROI on the maintenance contract is extremely clear.
TP
Tony P.
Sonoma — Property Manager, Maintenance Agreement
★★★★★
Had HVAC Repair CO install a new Carrier two-stage system last fall. The installer ran a Manual J calculation and told me my old unit had actually been oversized — which explained the short-cycling I'd dealt with for years. The new system is properly sized, humidity control is noticeably better, and my electricity bill dropped about 18% compared to the same months last year.
SL
Sandra L.
Sonoma, CA — New System Installation
★★★★★
Commercial refrigeration failing on a Saturday with a full weekend of bookings ahead — HVAC Repair CO sent someone with actual commercial experience. He diagnosed a TXV failure and refrigerant undercharge, corrected both, and we never had to close. Will absolutely keep them on call.
Switched to HVAC Repair CO for our building maintenance after going through three other contractors who kept missing things on inspection. The difference is that their techs actually document what they find and follow up on it. We finally have a maintenance partner, not just a service vendor.
Emergency dispatch runs 24/7, including weekends and holidays. Most Sonoma emergency calls see a technician arrive within one to two hours. Our dispatcher will tell you the realistic ETA when you call — not a best-case guess.
Yes. Our technicians are trained on all major residential and commercial HVAC brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Mitsubishi, LG, Bosch, Bryant, Amana, and Heil. We carry parts specific to the most common brands — which means less waiting for special-order components on the majority of calls in Sonoma.
No fuel surcharges, no disposal fees added at the end, no "miscellaneous materials" charges. What you approve is what you pay. Diagnostic fees are typically waived when you proceed with the repair. Call us to confirm current diagnostic visit rates for Sonoma.
Age matters alongside cost. A repair that costs $400 on a 5-year-old Trane is an easy call. The same repair on a 16-year-old Rheem approaching end-of-life efficiency ratings is a harder call — because the next component failure is likely already in the queue. Our technicians will give you honest guidance with specific numbers for your system's situation, not a default recommendation toward replacement.
Current federal minimum SEER2 standards vary by region. In warmer climates, minimums run higher because cooling load drives annual energy costs more significantly. A SEER2-compliant base-tier system offers a solid efficiency floor for budget-conscious buyers; mid-tier 16–18 SEER2 systems offer meaningful energy savings that can offset the cost difference within 5–7 years in Sonoma, CA's climate; high-efficiency 20+ SEER2 variable-speed systems are most appropriate for high-usage climates or homeowners planning long-term occupancy.
Commercial systems, systems serving occupied spaces with high particulate loads (restaurants, medical offices, manufacturing), and systems in coastal salt-air environments should be serviced more frequently — typically quarterly or per manufacturer specification. Our maintenance agreements are structured around your system's actual service requirements.
No — and this is worth understanding. Refrigerant handling requires EPA 608 certification, and purchasing refrigerant in quantities sufficient for a system recharge requires certification. Beyond legality, adding refrigerant to a system without first finding and repairing the leak is like adding oil to an engine with a broken seal — it buys you time but doesn't solve the problem.
Manufacturer rebates and federal tax credits for qualifying high-efficiency systems can also offset upfront installation costs. We'll identify any current incentives applicable to the equipment you're considering in Sonoma, CA before you make a final decision.
Warranty claims are simple: call us, describe what's happening, reference your original service invoice, and we dispatch. There's no complicated claim process. Call +1-844-611-2875 with your service date and address.
A duct blaster test (duct leakage test) measures how much conditioned air your ducts lose before reaching the rooms they serve. Systems with significant duct leakage can lose 25–40% of conditioned air to unconditioned spaces — which means your unit runs harder and longer for the same comfort output. We assess ductwork as part of full system diagnostics in Sonoma.
If you'd like proof of insurance or license numbers before service, we're happy to provide both. Call +1-844-611-2875 and ask the dispatcher — it's a routine request and we take it as a positive sign that you're careful about who you let work on your home.
Where We Work
Serving Sonoma and the Surrounding Area
Our service footprint covers Sonoma and surrounding communities in Sonoma, CA. Call +1-844-611-2875 to confirm availability at your specific address — most areas see same-day or next-day scheduling on non-emergency calls, and emergency dispatch is available from any location we serve.
We cover residential and commercial properties across Sonoma — from single-family repairs to multi-tenant commercial maintenance contracts. Same phone number, same dispatch team, same quality standard.
