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AC Installation in New Jersey
Central air, ductless mini splits and heat pumps, sized and installed by licensed New Jersey technicians.
- Licensed and insured NJ HVAC technicians
- Free in home assessment before any quote
- Town permit and inspection handled for you
- Phones answered 7 days a week
AC Installation
AC Installation Services in New Jersey
A new air conditioner is a big purchase. It should keep your home cool for the next ten to fifteen years without pushing your electric bill through the roof.
That only happens when the system is sized correctly and installed correctly.
551 HVAC installs central air conditioners, ductless mini splits and heat pumps for homes and small businesses across New Jersey. We are based in Lodi and we work across Bergen, Passaic, Hudson, Essex, Union, Middlesex and Rockland County.
Every job starts with a look at your home. We check the square footage, the insulation, the windows and the condition of your ductwork before we recommend any unit.
Then we file the permit with your town, install the system, test it and walk you through how to run it.
You get a written price before we start, so there are no surprise line items at the end.
System Assessment
Is It Time to Replace Your Air Conditioner?
Not every AC problem needs a new system. Sometimes a repair is the smarter spend. These are the signs that usually point the other way.
The unit is over 12 years old
Most air conditioners in New Jersey run about 10 to 15 years. Past that point, parts get harder to find and efficiency drops off.
Repair bills are stacking up
A simple check: multiply the age of the system by the repair quote. If the number lands above 5,000, replacing usually makes more sense than fixing.
Some rooms never cool down
Uneven cooling often means the system was sized wrong when it went in, or the ductwork cannot move enough air.
Your electric bill keeps climbing
An aging compressor pulls more power to do the same job. If usage has not changed but the bill keeps rising, the system is losing efficiency.
The system still uses R22 refrigerant
R22 was phased out. Recharging one of these units is expensive now, and it will only get worse.
The house feels damp even when the AC is on
An oversized unit cools the air fast, shuts off, and never runs long enough to pull humidity out. That leaves you cold and clammy.
Not sure which way to go? We will look at the system and tell you straight, even when the answer is an Ac repair rather than replacing the ac unit.
Equipment Options
Types of AC Systems We Install
The right system depends on your home more than your budget. Here is how the options compare.
Central Air Conditioning
Best for homes that already have ductwork. One outdoor unit and one indoor coil cool the whole house, all controlled from a single thermostat. This is the most common setup in New Jersey homes built after the 1970s.
Ductless Mini Splits
Best for homes with no ducts, along with additions, attics, converted garages and older two family houses. Each indoor head has its own control, so you can cool one room without cooling the empty ones.
Heat Pumps
One system that cools in summer and heats in winter. Heat pumps qualify for most of the current New Jersey rebate programs, which changes the maths on the upfront cost.
Window and Through the Wall Units
Best for a single room, a rental, or a spot where a bigger system is not allowed. We handle the electrical check, the bracket and the sealing so the unit is safe and does not leak air around the frame.
Smart Thermostat Setup
We can pair your new system with a smart thermostat so you can set the temperature from your phone and build a schedule around when you are actually home.
Engineering & Load Calculation
Why Sizing Matters More Than Brand
Most people shop for an air conditioner by brand. The bigger factor is size.
Size here does not mean physical size. It means how much heat the unit can pull out of your home, measured in tons.
An oversized unit cools the air quickly, shuts off, then starts again a few minutes later. That short cycling wears out the compressor and never runs long enough to dry the air, so the house feels cold and sticky at the same time.
An undersized unit runs all day on a hot afternoon and still cannot catch up.
We work the number out with a load calculation instead of guessing from square footage. That means looking at your insulation, your window count and direction, your ceiling height, how many people live there and how leaky the house is.
Home Size vs. Typical System Size
The table below is a rough starting point only. The real number comes from the assessment.
| Home size | Typical system size |
|---|---|
| Up to 1,000 sq ft | 1.5 to 2 tons |
| 1,000 to 1,500 sq ft | 2 to 2.5 tons |
| 1,500 to 2,000 sq ft | 2.5 to 3.5 tons |
| 2,000 to 2,500 sq ft | 3.5 to 4 tons |
| 2,500 sq ft and up | 4 tons or a zoned setup |
Older New Jersey homes often need more capacity than a newer home of the same size, because of thinner insulation and single pane windows.
Pricing Guide
What Does AC Installation Cost in New Jersey?
There is no single price, and any company that gives you one over the phone is guessing.
What we can do is show you the ranges homeowners in North Jersey are actually paying, so you know whether a quote is reasonable before you sign anything.
| Job type | Typical NJ range |
|---|---|
| Condenser and coil swap on good ductwork | $5,000 to $8,500 |
| Full central AC install, existing ductwork | $6,000 to $9,500 |
| Central AC with new or reworked ductwork | $9,000 to $16,000 |
| Single zone ductless mini split | $3,500 to $6,500 |
| Multi zone ductless mini split | $7,000 to $15,000 |
| Heat pump system | $7,000 to $15,000 |
These are current market ranges across New Jersey, not a quote from 551 HVAC.
Common add ons
Electrical panel or wiring upgrade, roughly $500 to $2,000
Duct repairs or modifications, roughly $500 to $3,000
Smart thermostat, roughly $100 to $500 installed
Town permit fee, roughly $50 to $500 depending on the municipality
Four things move the number more than anything else: the size of the system, the efficiency rating, the condition of your ductwork and how hard the equipment is to get to.
North Jersey generally runs higher than South Jersey because labour costs more this close to New York.
The only number that means anything is the one you get after someone has seen your home. Ours comes in writing before any work starts.
The 551 Difference
Why New Jersey Homeowners Call 551 HVAC
We have built the business on doing the boring parts properly.
Load calculation on every job
We size the system to your home instead of matching whatever was there before.
Flat written price before we start
You approve the number first. It does not move once the crew arrives.
Permits and inspection handled
We file with your town and meet the inspector, so you are not chasing paperwork.
Licensed and insured
NJ HVAC licence number shown on every quote and invoice.
We service what we install
The same team handles your maintenance and any repairs later, so nobody has to work out what the last company did.
Someone answers the phone
Seven days a week, including through summer heat waves.
Local Coverage
Where We Install AC Systems in New Jersey
We are based in Lodi and most of our installs are within about an hour of the shop.
Also serving: Union County, Middlesex County, and Rockland County, NY.
If your town is not listed, call anyway. We often cover it.
Verified Feedback
5.0 Star Rating
• Google Business Profile
What New Jersey Homeowners Say About Our Installs
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Thomas K.
Paramus, NJ • 3 weeks ago"The HVAC installation service provided was remarkable. The team was professional, arrived on time, and completed the central AC installation efficiently. They explained how to operate and maintain the new system. It has made a huge difference in our home comfort."
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Ryan J.
Hackensack, NJ • 1 month ago"The AC installation was exceptional. They were on time, professional, and explained everything clearly. Sized the unit properly with a full load calculation, and the crew worked cleanly and left the work area spotless."
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Sarah M.
Clifton, NJ • 2 months ago"Installed a multi-zone ductless mini split system in our older home without ducts. From the initial in-home assessment to the final town inspection, everything was seamless. Flat price in writing with zero surprises."
Answers & Details
AC Installation Questions We Get Asked
Most straight replacements on existing ductwork take one day. If ductwork needs work, or you are putting cooling into a home that never had it, plan for two to three days.
Yes. New Jersey requires a permit for installing or replacing AC equipment, and an inspection afterwards. We file it with your town and meet the inspector.
Most central AC installs in North Jersey land between $6,000 and $9,500 with existing ductwork. Jobs that need new ductwork or electrical work run higher. Ductless mini splits start lower for a single zone.
It depends on more than square footage. Insulation, window count, ceiling height and how leaky the house is all change the number. We run a load calculation during the assessment instead of guessing.
Yes. A ductless mini split handles that. Each room gets its own indoor head and its own control, and there is no need to open walls for ductwork.
If the furnace is a similar age, doing both at once usually costs less than two separate jobs, because the labour overlaps. If the furnace is much newer, there is no reason to touch it.
SEER2 measures how efficiently a system cools. A higher number means lower running costs but a higher price up front. We will show you the difference in real numbers so you can decide where the payback works for you.
Around 10 to 15 years with annual maintenance. Systems that are oversized or never serviced tend to come in at the lower end of that.
Ask us when we quote. We will also check which rebate programmes your system qualifies for, which often makes more difference than the payment plan.
In-Depth Buyer's Guide
A Closer Look at AC Installation in New Jersey
New Jersey summers are humid as much as they are hot. That matters when you are choosing a system, because pulling moisture out of the air is half the job. A unit that only chases the temperature reading will leave your house cold and damp.
It is also why the sizing conversation keeps coming up. A system that is too big cools the air fast, shuts off, and never runs long enough to dehumidify. Most homeowners assume bigger is safer. With air conditioning, it usually is not.
The other thing worth knowing before you get quotes is that the housing stock here is old. A lot of homes across Bergen and Passaic County were built before 1980, with thinner insulation and single pane windows. Two houses on the same street with the same square footage can need different sized systems for that reason alone.
Ductwork is usually the deciding factor
If your home already has ducts in reasonable shape, central air is the cheapest route to whole home cooling. If the ducts leak, are undersized or were only ever designed for heating, the cost of putting that right can close the gap with a ductless system.
We check the ductwork during the assessment rather than after the equipment is ordered, because finding out late is what turns a clean quote into a bigger bill.
What changed with refrigerant in 2026
The industry moved to R-454B refrigerant for new equipment. It is a lower global warming refrigerant and it is what new systems ship with now. In practice it means older R22 and R410A systems are on their way out and the parts supply is tightening. If you are on the fence about replacing an older unit, that is worth factoring in.
Installing cooling in a home that never had it
Older two family homes, attic conversions and finished basements often have no ductwork at all. Running new ducts through a finished space means opening ceilings and losing headroom, which is why most of these jobs end up as mini splits. One outdoor unit can usually run several indoor heads.
Timing your installation
The busiest weeks are the first real heat wave of the summer, usually late June. Lead times stretch and nobody is at their best working flat out in ninety degree heat. If your system is limping along, spring or early autumn is a calmer time to do it, and equipment is easier to get.
What to compare when you have three quotes
Look at whether the quote states the system size and where that number came from. Look at whether the permit and inspection are included. Look at whether ductwork and electrical work are priced or listed as to be determined. A cheaper quote with three lines of to be determined is not cheaper, it is unfinished.
Free In-Home Assessment
Get a Free AC Installation Quote
Tell us about your home and we will come out, size the system properly and put a flat price in writing.
No charge for the visit and no pressure to book on the spot.
Call (551) 365-3500 or send us a message and we will get back to you the same day.
Heating and Air Conditioning Services
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CONTACT DETAILS
- Tel: (551) 365-3500
- 115 DELL GLEN AVE,
1st Floor LODI NJ 07644 - Open 24 Hours - 7 Days a Week
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(551) 365-3500
(551) 365-3500