Cooling Language
See how heat pumps, refrigerant, HVAC, air conditioning, and the everyday abbreviation AC relate to one another.
Explore cooling terms →All Set Heating, Air & Plumbing provides residential and light commercial HVAC and plumbing services across Jacksonville and Northeast Florida. Our team serves Duval, Clay, and St. Johns counties, including Ponte Vedra, Nocatee, RiverTown, SilverLeaf, Marsh Landing, Middleburg, Orange Park, Fleming Island, and Green Cove Springs.
Who We Are
Heating, Air Conditioning & Plumbing Services in Jacksonville & Northeast Florida
Our certified technicians provide air conditioning repair, AC installation, heating service, emergency plumbing, and commercial HVAC maintenance to homeowners and businesses across Duval, Clay, and St. Johns Counties.
We operate on one premise: show up fast, diagnose accurately, price fairly — every time. That's why Northeast Florida homeowners have made All Set a 5-star rated Google HVAC and plumbing contractor. From a broken AC at midnight to a burst pipe on a Sunday morning, we're the team that picks up.
About All SetHow We Work
Honest Service. Clear Options. Problems Actually Solved.
From the first call to completed work, you'll know what's happening, what it costs, and what comes next.
Schedule Service
Call or book online, and we’ll schedule a technician — including nights, weekends, and holidays.
Diagnose the Problem
We inspect the system and identify the root cause before recommending any work.
Review Your Options
You see the choices, pricing, and tradeoffs before deciding what happens next.
Complete & Protect
We complete the approved work and back qualifying installations with a 10-year parts warranty.
What We Do
HVAC & Plumbing Services for Jacksonville & Northeast Florida
In the News
As Featured In
Founded by U.S. Air Force veteran and former law-enforcement officer Keith Gause, All Set grew from one service truck to seven in its first year — earning national coverage for the disciplined, accountable service model behind that growth.
Our Difference
Why Northeast Florida Chooses All Set
Transparent $99 Diagnostic
No surprise charges to find out what's wrong. We diagnose, then quote — always.
10-Year Parts Warranty
Qualifying equipment installations include a 10-year parts warranty.
Same-Day & 24/7 Emergency Service
Real technicians dispatched day, night, weekends and holidays. We answer the phone.
Written Estimates Before Any Work
You approve every job in writing. No hidden fees, no bait-and-switch pricing. Ever.
Insured in Florida
Fully insured HVAC contractor and plumbing company — general liability and workers' compensation coverage.
150+ Google Reviews
Northeast Florida homeowners have spoken. We're proud of every review we've earned.
Same-Day Repairs on Most Calls
We stock our trucks with the parts most commonly needed in Florida systems. Same-day service on dispatched calls — not automatic with every job.
Live Dispatcher 24/7
No answering service, no voicemail queue. A real dispatcher picks up day or night.
Discounts & Deals
HVAC Special Offers in Jacksonville & Northeast Florida
Covering Northeast Florida
All Set serves Jacksonville and Northeast Florida with AC repair, heating service, plumbing, and 24/7 emergency dispatch from our Middleburg home base.
- Jacksonville
- Orange Park
- Middleburg
- Fleming Island
- Ponte Vedra
- Nocatee
- Marsh Landing
- St. Augustine
- Green Cove Springs
- Fruit Cove
Cost of Waiting
What Happens When You Wait
In Jacksonville and across Northeast Florida, a failing AC unit does not quietly decline — and All Set's plumbing, heating, and air conditioning technicians see the same pattern every summer. It fails during the worst possible week, when the heat index is over 100, family is visiting, or overnight lows never cool the house down enough to recover. What started as a noisy compressor or a system that wasn't quite keeping up becomes an emergency at the worst possible time.
The same is true for slab leaks. A pipe leaking slowly under your foundation can go weeks without an obvious sign at the surface. By the time you see a wet floor or a soft spot in the drywall, the damage is already done. Early detection — through a plumbing inspection or a sudden unexplained spike in your water bill — is always cheaper than a remediation.
All Set's model is simple: arrive quickly, diagnose honestly, explain everything, and fix it right the first time.
Trusted Brands
We Repair, Service, and Install All Brands
Factory-trained technicians service every major HVAC manufacturer — residential and commercial systems, Jacksonville and across Northeast Florida.
What Your Neighbors Say
What Jacksonville & Northeast Florida Homeowners Say About All Set
5.0
★★★★★
5-Star Rated on Google
✓ Verified Google Business Profile
★★★★★
“All I will say is Gage and Matt were absolutely outstanding. Their customer service was exceptional. They came in and knew exactly what the problem was right away. They were so friendly to my family and my dog.”
Shelia M.
★★★★★
“James was SOOOOO helpful. Gave me much appreciated information. He resolved my problem, which… thank the Good Lord, was minor. But got me pointed in the right direction. I would recommend James & All Set Heating and Air to everyone.”
Taffie N.
★★★★★
“Brandon and Josh were the best! They were quick, honest and professional. They've explained our options and proceeded with the things that are needed to do. We have been exemplary pleased with the results and no more second thoughts.”
Arbs B.
★★★★★
“We have been with All Set Heating and Air for a few years now and we love them. They are honest and the monthly maintenance package has saved us so much money! Jordan was the last tech we had and he was a sweetheart!”
Breanna E.
★★★★★
“First time I had All Set Heating and Air out and was extremely satisfied with the service I received. Jordan my technician was on time, explained things very well, and all in all did a great job!”
Michael G.
Common Questions
Questions Northeast Florida Homeowners Ask About HVAC & Plumbing
Systems under 10 years old with a component failure (capacitor, contactor, fan motor) usually make more financial sense to repair. Systems over 15 years old, or those needing a compressor, often reach the replacement threshold. Our technician will walk you through the numbers so you can decide with confidence.
Common repairs: capacitor $150–$400, refrigerant recharge $250–$600, contactor $150–$300, fan motor $300–$700, evaporator coil $600–$2,000. We provide a written estimate before starting any work.
Yes. All Set dispatches technicians every day of the year including holidays. Call 904-206-8702 any time — a live person answers. No answering service, no next-day callback only.
A full 21-point inspection: capacitor health, refrigerant pressure check, coil cleaning assessment, electrical connections, blower performance, thermostat calibration, condensate drain flush, and a written report of findings.
All Set serves all of Duval, Clay, and St. Johns Counties — including Jacksonville, Middleburg, Orange Park, Fleming Island, Green Cove Springs, Ponte Vedra, St. Augustine.
Yes. All Set offers quarterly commercial PM contracts for rooftop units, split systems, air handlers, and heat pumps. Commercial clients receive priority scheduling, 15% repair discounts, and detailed maintenance records.
Yes. All Set Heating, Air and Plumbing is an HVAC contractor and plumbing company in the state of Florida, carrying full general liability and workers' compensation insurance.
Yes. Financing options are available on qualifying equipment installations. Ask about 0% interest promotional periods on new AC systems. Call or book online for details.
Helpful HVAC & Plumbing Terms
Understand the Language Before You Make a Service Decision
Use All Set’s plain-language glossary to make sense of equipment, repair recommendations, and the terms you may hear during an HVAC or plumbing appointment.
Heating Language
Learn what a furnace is, how forced-air heating works, and why the singular and plural terms appear in different service conversations.
Explore heating terms →Plumbing Language
Review the basic plumbing system and water-heater concepts that help homeowners understand a written service recommendation.
Explore plumbing terms →Commercial & Local Context
Understand rooftop units and how Clay County fits within All Set’s Northeast Florida HVAC and plumbing service area.
Explore commercial and local terms →Ready to Schedule Your HVAC or Plumbing Service in Jacksonville?
Call 904-206-8702 to speak with a live technician dispatcher. Same-day appointments available. No answering service.
All Set Heating, Air and Plumbing provides AC repair, AC installation, heating service, plumbing, and commercial HVAC maintenance across Jacksonville and Northeast Florida.