In South Florida’s heat and humidity, your air conditioning system works almost year-round.

That’s why preventative HVAC maintenance is one of the smartest investments homeowners in Palm Beach County and Broward County can make.

At M&S Air Conditioning, we recommend scheduling preventative maintenance twice a year, once before cooling season and once before the mild winter months, so your system is ready to perform when you need it most.

What Is Preventative HVAC Maintenance?

Preventative maintenance is a proactive service designed to keep your HVAC system running efficiently, safely, and reliably. Rather than waiting for a breakdown during the hottest day of the year, routine maintenance helps catch small issues early—before they turn into expensive repairs.

During a maintenance visit, our trained technicians perform a detailed inspection, make necessary adjustments, and ensure every component is operating at peak performance.

Why Preventative Maintenance Is Essential for South Florida Homes

Regular HVAC maintenance delivers both immediate and long-term benefits, especially in Palm Beach and Broward counties where systems face constant demand.

Key Benefits of Preventative HVAC Maintenance

Fewer Unexpected Repairs: Small issues like worn components or low refrigerant can be addressed early, reducing the risk of major system failures.

Longer Equipment Lifespan: 

Replace your old, leaky ducts — and save money while you’re at it!

Call M&S Air Conditioning today at (954) 421-3680 for your free duct replacement estimate.

Are Your Ducts Costing You Comfort (and Cash)?

If you’ve noticed water spots on your ceiling during the summer (that aren’t from the roof), rooms that never seem to cool evenly, or dust that just won’t go away, your ductwork could be the hidden culprit.

Most homeowners don’t realize that ductwork is just as important as the air conditioner itself when it comes to comfort and efficiency. Even if your AC is brand new, aging or damaged ducts can waste energy and reduce performance.

Over time, ducts can:

• Develop air leaks that allow conditioned air to escape
• Suffer from poor insulation, causing energy loss in hot attics
• Accumulate dust, allergens, or even mold
• Sag, disconnect, or deteriorate — especially in Florida’s humid climate

The result? Higher energy bills, uneven temperatures, and poor indoor air quality that can impact your family’s comfort and health.

Why Fall and Winter Are the BEST Times to Replace Ductwork

Here’s something many homeowners don’t know: the best time to replace your ductwork is during the HVAC “off-season” —

If you're like most Floridians, your air conditioner is the unsung hero of your home, working tirelessly behind the scenes to keep things cool, calm, and comfortable.

But while we depend on our AC systems day in and day out, we rarely stop to think about what they need in return. Until, of course, they stop working.

Preventive maintenance is one of the most overlooked—but most important—things you can do for your HVAC system. Think of it like regular check-ups for your health, or oil changes for your car. It’s not just about avoiding problems, it’s about improving performance, lowering costs, and protecting one of your home’s most essential systems.

Let’s explore why your air conditioner deserves a little TLC, and how taking care of it now can pay off big later.

1. Beat the Heat by Preventing Unexpected Breakdowns

No one wants to come home to a hot, stuffy house—especially not in the peak of a Florida summer. But that’s often when AC units are pushed to their limits and most likely to fail.

Preventive maintenance is your best line of defense. When you schedule a tune-up, a qualified technician performs a top-to-bottom inspection of your system, looking for

The HVAC industry is undergoing a major shift in 2025 with the transition to A2L refrigerants and the phasedown of R-410A.

M&S Air Conditioning is here to help homeowners in Palm Beach, Broward, and surrounding areas navigate these changes.

Key Refrigerant Changes

The EPA’s new regulations require all new air conditioning systems and heat pumps to use A2L refrigerants instead of hydrofluorocarbons (HFCs) like R-410A. While this impacts new systems, existing R-410A units can still be serviced and repaired as long as replacement parts are available.

What Homeowners Need to Know

• Existing Systems: If you have an R-410A unit, you don’t need to replace it immediately. Routine maintenance and repairs will remain possible for years.

• System Lifespan: HVAC units typically last 15–20 years with proper care. ENERGY STAR® suggests planning for replacement after 10–12 years to take advantage of energy-efficient models.

• Cost Considerations: As R-410A production decreases, repair costs may rise. New A2L-compliant systems will have higher upfront costs but offer greater energy efficiency.

Impact on the HVAC Industry

The transition to A2L refrigerants promotes eco-friendly practices but also presents challenges. Technicians must adapt to the new refrigerants, which require specialized handling and safety training.

What is A2L Refrigerant?

A2L

Preventative Maintenance for Your HVAC System

Preventative maintenance is essential for ensuring your HVAC system operates smoothly throughout the season, minimizing the risk of unexpected breakdowns. By scheduling maintenance twice a year you can start each season with confidence in your system’s efficiency and reliability.

Why is Preventative Maintenance Crucial?

During your maintenance appointment, our trained technicians will thoroughly inspect your unit, making necessary adjustments and repairs. Regular maintenance offers both immediate benefits and helps prevent future issues. Here are some key advantages:

Fewer Repairs: Addressing minor issues promptly can prevent them from escalating into costly repairs.

Extended Equipment Lifespan: Regular servicing and cleaning keep air conditioners, furnaces, and other HVAC equipment running optimally.

Lower Energy Bills: Even if your HVAC system appears to be functioning well, neglect can reduce its efficiency over time. A well-maintained system consumes less energy, ultimately lowering your energy bills.

Maintenance Tasks You Can Do Yourself

In addition to professional maintenance, there are simple tasks you can perform to keep your system running smoothly between visits:

• Check the filter monthly. Many units have indicator lights to remind you when it’s time to check the filter.
• Clear debris around the outdoor unit.
• Hose down the outdoor

Most HVAC manufacturers require you to register your new equipment or part shortly after purchase in order to offer you their full limited warranty.

Proper registration also ensures that any licensed HVAC contractor can perform warranty services, should a warrantied part fail. Unfortunately, many HVAC companies just don’t want to bother with warranty work.
At M&S Air Conditioning, our primary goal is serving our customers in a prompt, professional, and courteous manner - and that includes honoring all manufacturer’s warranties.

How long does the basic factory warranty last?

If your equipment is registered in the prescribed amount of time, the basic factory warranty will typically cover the compressor and most other parts for 10 years. Failing to register your equipment in a timely manner can reduce the warranty period to 5 years, so make sure you send in the registration card (or register your equipment online) right away!

But registering your equipment is just the beginning. Failing to use a licensed contractor for service or using off-brand replacement parts can void your warranty. Regular maintenance, performed by an authorized service provider, like M&S Air Conditioning, is also a warranty requirement.

What is covered by the basic factory warranty (and what

As we all become increasingly aware of the role that indoor air quality plays on our health, we’ve started receiving more and more calls from customers asking what they can do, beyond making sure their air filter is clean, to improve the air inside their home or business - our answer is tried and true…

For over 100 years, UV-C light, otherwise known as germicidal ultraviolet light, has been used to eradicate germs on surfaces, in the air, and in water.

Viruses, like COVID-19, are roughly 100 times smaller than bacteria and much smaller than other pollutants, like pollen and pet dander, which are the primary cause of poor indoor air quality. This means that a standard HEPA filter is not designed to and will not remove viruses from the air.

Unlike traditional air filters, some air purifiers can capture viruses, but they don’t destroy them so the virus can remain alive inside the filter for several days. High quality air filters also come with a hefty price tag. Conversely, UV-C light systems are extremely cost effective.

When installed inside your HVAC system, UV-C lights disinfect every cubic inch of air-conditioned space, reducing airborne and surface contaminants that contribute to

The Inflation Reduction Act was signed into law on August 16, 2022.

It represents the largest federal investment to fight climate change in U.S. history, offers tax credits and rebates to consumers who buy clean vehicles and appliances or take other steps to reduce their carbon footprint.

With the changes that have already been implemented as of this writing (3/13/23), Florida homeowners could get up to $10,250 in Tax Credits, on top of hundreds of dollars/year in energy savings so, if you’ve been thinking of upgrading to a Heat Pump Air Conditioning System - there’s no time like the present!

Simply put, heat pumps transfer heat from a cool place to a warm place, making the cool place cooler and the warm place warmer in the process. This means that, when it is cold outside, they move heat into your home and, when it’s hot outside (which is most of the time in South Florida), they move heat out of your home. Because heat pumps are transferring heat rather than generating heat, they’re an energy-efficient and environmentally friendly alternative to traditional furnaces and air conditioner.

In fact, studies show that switching from a traditional furnaces and air conditioner to a

Here in Florida, a ductless heating and cooling system in a single-zone configuration starts at $3,500 - fully installed, and ready to turn on. The price goes up from there, depending on a variety of factors.

Buyer Beware

Some websites advertise ductless mini-split systems as low as $1,867 and $159 to have it professionally installed. As you can probably imagine, that price is for the cheapest, least efficient unit on the market, but no reputable contractor would charge that little for labor so proceed with caution.

Ductless Mini-Splits are Whisper-Quiet

By now, you may already know that ductless systems are a quiet, efficient heating and cooling solution that will, in some cases, pay for themselves in energy savings, but what can a homeowner expect to pay for this modern convenience in the Broward, Palm Beach and Deerfield Beach area?

Ductless mini-split technology has actually been around for more than 50 years, but it’s only been available to Florida homeowners for the past 30 years or so. In fact, ductless systems account for 90% of all HVAC systems sold in Japan and 80% of all systems in Europe. Lack of familiarity with the technology and limited access to information has slowed

If you're in Broward or Palm Beach and you're considering a mini-split system for your home or office, you simply must read this 5-star review from Ale Nor!

It has now been 2 years since the mini split system has been installed.

The only mistake I made was not listening to Mike and NOT taking his suggestion. We had a 2nd zone added to the house in July 2022, Mike did say to do it way back in 2020 and I didn't listen.

We had wall ac units in 2 bedrooms and NO ac in the 3rd bedroom. We have been so pleased with the original installation, quality of the product that of course it was a no brainer to call them again.

We have the yearly maintenance service and ALWAYS on time, right to the point cleaning with great service technicians. I think everyone in this company really knows how to do their jobs and how to do them very well.

So, back to the new mini splits. Just when I thought it couldn't get any better it did. Very clean installation, again on time service and installed and completed with 2 business days.

The sound of the mini

Deciding on whether you should repair or replace your air conditioner can be a difficult decision to make.

Consider the age of the unit. An air conditioner has a typical lifespan of around 10-15 years (According to the National Association of Home Builders – “Life Expectancy of Home Components”), so if your air conditioner is acting up, and it’s over 15-years-old, then it might be time to replace it.

Even if your central air conditioner is just eight to 10 years old, it may be using up to twice the electricity that a new one would use. Newer units have on average 30% lower cooling bills than equipment installed just a few years ago.

If you're in Broward or Palm Beach call M&S at (561) 861-3345 or (561) 861-3345. We can inspect your Air Conditioning system and give you the information you need to make an educated decision.

Sometimes the cost of installing an inexpensive part, like a capacitor, can seem disproportionate, but it’s important to know what you’re paying for when you hire a reputable service company.

When you hire a reputable service company, you’re not just paying for a part; you’re paying for the peace of mind that comes with knowing that the right part is being installed correctly.

Before you can install a part, inexpensive or otherwise, you need to have the knowledge required to diagnose the problem. Our highly trained technicians arrive quickly, with a fully stocked truck so they can diagnose the problem and, if necessary, install a high-quality replacement part, without you having to wait for an off-brand part to be delivered by Amazon - and their work is guaranteed.

Many off-brand parts are perfectly fine but using an unauthorized replacement part will void your warranty so save the off-brand parts for when you’re out of warranty.

In addition to being experts at what we do, we are licensed and insured, our phones are staffed by customer service professionals that are ready to answer your call – all that costs money.

Another way people try to save money is by hiring an

A ductless air conditioner, also known as a mini-split system, has two main components. The first is a cooling unit mounted to an interior wall and the second is a unit located outside the home or business. Refrigerant and electrical lines connect the exterior unit to the indoor wall-mounted cooling units.

The outdoor unit includes an inverter-driven heat pump that cools refrigerant and sends it back inside to an air handler via small lines and a wireless control unit allows you to adjust the temperature, fan speed, and more with the touch of a button.

Ductless HVAC systems offer numerous benefits.

They are easy to install, operate quietly, and offer an attractive design. Ductless systems are reliable, the same system heats and cools, and it is controlled wirelessly. A ductless system is ideal for new additions, renovated spaces, garage, or basement rooms, and they are an effective solution for any property that can't accommodate ductwork.

Indoor units can be installed anywhere in the room - on the ceiling, walls, or even on the floor. Outdoor units come in a wide variety of capacities, they are easy to install, and can be camouflaged, which is especially significant for maintaining the aesthetic

We’re so used to conventional central air conditioning systems, we don’t even wonder if there’s a better way to heat and cool our homes and businesses - a less expensive way, one without all the hot and cold spots or the draftiness. Well, we’re here to tell you - there is a better way!

Unlike traditional HVAC systems, VRF systems divide buildings into customizable zones. Heating and cooling is provided by cycling refrigerant between an outdoor unit and each zone’s ductless or ducted indoor unit so the temperature set point for each zone is reached using the least amount of energy.

The amount of ductwork in ducted configurations is minimized because units are within or near the zone they condition, making even ducted VRF systems more efficient than traditional ducted systems. In comparison, centralized systems rely on a single air handler to condition an entire building. This setup forces air through long, frequently leaky, ducts which means that rooms that are far from the air handler receive less conditioned air than closer rooms - making thermostat battles inevitable.

Conventional HVAC systems rely on energy-intensive on/off cycles. The system runs until the set point is reached, then shuts off. Within

Simply put, heat pumps transfer heat from a cool place to a warm place, making the cool place cooler and the warm place warmer in the process.

This means that, when it is cold outside, they move heat into your home and, when it’s hot outside (which is most of the time in South Florida), they move heat out of your home. Because heat pumps are transferring heat rather than generating heat, they’re an energy-efficient and environmentally friendly alternative to traditional furnaces and air conditioner.

In fact, studies show that switching from a traditional furnaces and air conditioner to a heat pump saves the average U.S. household $557 per year on heating and cooling and produces 3 metric tons less of carbon emissions per year – this is a nearly equivalent to giving up your car!

Like central air conditioners, heat pumps have two main components, an indoor air handler and an outdoor unit with a compressor that circulates refrigerant that absorbs and releases heat as it travels between the indoor and outdoor units.

So how do they work?

When cooling your home, heat pumps work in much the same way as a traditional air conditioning system (or your refrigerator);

The 2022 Atlantic Hurricane Season runs from June 1 until November 30.

For the seventh year in a row, the National Oceanic and Atmospheric Administration (NOAA) is predicting an “above-normal” season with 14 to 21 named storms. Of those, 6 to 10 will likely become hurricanes (storms become hurricanes when wind speeds reach 74 mph) and 3 to 6 of them will probably become “major" hurricanes. Storms are considered “major” hurricanes (category 3 or higher) when sustained winds reach 111 mph.

If you live in Florida, there’s a good chance you have a routine you break into when there’s a hurricane barreling towards Florida. You bring in patio furniture and any other “projectiles”, you stock up on food and water, maybe fill up the tank. You know the drill, but what about your air conditioning system?

These tips will help keep you comfortable during the storm and protect your AC from damage:

1. Check the bolts and straps that secure the outdoor AC unit to the concrete slab for any signs of rust or deterioration that could make the unit vulnerable to high winds.
2. Before the storm, bring in outdoor furniture, bird feeders, plants - anything that could become airborne and

Cooling Your Home

Cooling your home and living space to a temperature of 78 degrees or warmer with the fan switched to auto on your thermostat. You can save even more by raising your thermostat to 82 degrees when you’re not home. By watching your thermostat and not cooling your home when you’re not there, you can save a lot of money in the long run.

Water Heater Savings

Lower your water heater temperature to 120 degrees from 140 degrees. This is the recommended setting for water heater temperature according to the U.S. Department of Energy, which will have the average household about $7 a month.

A/C Filter Cleaning

To save even more on your monthly energy costs, clean or replace your A/C filter on a regular basis to help your air conditioner run more efficiently.

Ceiling Fans

Remember to turn off your ceiling fans when you leave a room. A ceiling fan is meant to cool a person, not a room! It costs about $7 a month to run a ceiling fan constantly.

Drying Your Clothes

Using the auto sensor function on your dryer will help you conserve energy by not over-drying your clothes. Over time, running your dryer

Do you have questions about your AC System?

Are you still arguing with your spouse about whether to turn the thermostat up or off when you leave the house? Check out this impromptu video we shot with Stephanie Fortune of Fortune Business Consulting or give us call at (561) 861-3345 with your specific questions.

Video Transcript:

Mike: Hello Everybody, my name is Mike Macdonald, I’m with M&S Air Conditioning & Appliance Service and today we have the luxury of having Stephanie Fortune from Fortune Marketing & Business Solutions with us and we just wanted to ask her a couple questions about her AC system.

Hello, Stephanie.

Stephanie: Hi. How are you?

Mike: Doing good.

Stephanie: Happy to be here.

Mike: So, what is it that you don’t like about your air conditioning system

Stephanie: So, I have a 3-story home. I have a garage on the first floor, a bedroom on the third floor, and then the living space, more or less, on the second floor, and my office. I find that sometimes it’s way colder in my office or in the bedroom and not so much in the living room so how could I manage the temperature in the

In many Florida homes, the air handler is in the attic which is far from ideal...

With temperatures reaching 160° F in the summer months, HVAC professionals agree that Florida attics are about the worst place you could possibly install an air conditioning system. Not to mention the fact that it makes it hard to access for service.

Having your air handler in the hottest part of the house means it has to work harder to keep you cool and that means higher utility bills and an overburdened system that malfunctions more frequently. Relocating the air handler to a cooler part of the house will result in significant energy savings and it will extend the life of your system, so it is a worthwhile investment.

But relocating an air handler is not a job for beginners, inexperienced technicians will take longer to complete the task (which means you pay more – one way or another) and they may knowledge regarding the best place to relocate the unit so you should only use a company that has plenty of experience providing this type of service to Florida homes.

If you’re in the Broward or Palm Beach county and you’re ready to

When you need to repair or replace an appliance, you have two choices: do it yourself or call a professional.

Some smaller jobs are straightforward enough and there’s no shortage of videos to guide you but, when it comes to big jobs, like installing a ductless heating and cooling system, stop the videos, put down the tools, and call a professional – not “Uncle Bob” the jack-of-all-trades...

Here are the top 7 reasons why you should hire a true professional, like M&S Air Conditioning, for your heating and cooling system repairs and installations:

Eliminates Costs of Tools and Materials

Unless you're an HVAC professional, you probably don't have the tools required to install a heating and cooling system. Installing a ductless system, for example, requires torque wrenches, vacuum pumps with lines and adapters, gauges, clamps, levels, drills, and a variety of other tools and supplies.

Saves Time

You’re not just saving money on supplies; a professional installation saves you time. When you take on a DIY project, you have to spend time learning how to do the job, you have to get the tools and supplies and, once you start, you’ll probably encounter questions that will cause you to stop