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Proudly Serving the Lower Hudson Valley
We Keep Your Home Comfortable Heating, Cooling, Fireplaces & Chimney Services All Handled by One Trusted Local Team

Upgrade and Replacement

If you're experiencing higher than normal energy bills, uneven home temperatures, unusual noises, excessive dust, or if your HVAC system is older than 15 years, it might be time to replace or upgrade your home's heating and cooling system. There comes a time when it is no longer feasible to keep repairing an old HVAC system and a replacement or upgrade is necessary. And while you may have been a homeowner for many years, this may be the first time you're facing this type of project and you may have a lot of questions. McNamara Services can walk you through the process and assist in making the best decision for you and your home. 

How Much Will Replacing An HVAC System Cost?

Your home comfort system is most likely one of the larger investments you'll make for your home. This may prompt you to cut corners and try to save money, however in this case, don't be penny-wise and pound-foolish! Your home's heating, ventilation, and air conditioning system is very important in keeping the home comfortable by circulating fresh air. And it also needs to work every day of the year. It's something you don't notice when it's working well, but you definitely notice when it's not!

Prices for replacement HVAC systems can vary greatly across the nation depending on the system's size, accessibility of the old unit, transitional sheet metal work needed, and the new unit’s efficiency rating that you chose to meet your energy savings goals. So instead of giving a price range that could be wildly off-base, we recommend calling us at (845) 712-9728 to get a free estimate. It's a quick and easy way to know how much you'll need to budget for your replacement system. Or, fill out our Repair & Replace Quick Help Guide by answering a few questions about your existing unit to get our initial recommendation. 

For HVAC replacement projects in particular, there are often additional costs associated with retrofitting a new system into the old system's footprint as well as any recommended repairs to your current ductwork and/or exterior envelope to help the system function most efficiently. If your system is undersized or many years old, you may want to upgrade your HVAC system to get better energy efficiency and overall performance.

Do I Need To Replace The Entire HVAC System?

If only your AC unit is on the fritz, you might be tempted to only replace part of the HVAC system. Even though only one part of your system may need replacing, it’s generally recommended to replace the entire system all at once to maintain maximum system efficiency. Replacing the entire HVAC system means spending more money upfront but you will save money in the long run because your entire HVAC unit will be in sync. Having a properly designed and installed heating and air conditioning system will have the biggest impact on reducing your energy costs.

Can I Replace An HVAC System Myself?

Replacing an HVAC system isn't a DIY job and installing it incorrectly can be more costly than the replacement system itself. Rely on the professional HVAC technicians of McNamara Services to ensure your system is installed correctly and according to the manufacturer's warranty. We'll make sure your HVAC replacement or upgraded system is installed according to the manufacturer's specifications, perform all necessary tests to ensure the system is functioning properly, and go over the proper operation of the new system and answer any questions. 

Once your new system is up and running, you'll want to maintain your investment with regular servicing of the unit to make sure it stays in top condition and works as efficiently as possible. Ask us about our preventive maintenance programs. Contact us today at (845) 712-9728.

Expert Service, Start to Finish

We handle repairs, maintenance, and installations with the same level of care—so you can enjoy comfort without the hassle.

Trusted By Homeowners Like You

    Our New Go-To Experts
    “I had them come out for an emergency call on a Saturday. Coldest day of the year & no heat. A real live person answered the phone, and within the hour, they were here fixing the problem. Their prices are great & their service is spectacular.”
    - Bobby D.
    Would Definitely Recommend
    “Excellent service. We had a problem with the boiler in our new home, the weekend before New Year's. The technician who arrived was prompt, courteous, and really knew his stuff. We had the heat back on within a couple of hours!”
    - Collin T.
    No One Better!
    “They were super friendly and helped me work through a tricky situation with an old, poorly outfitted gas fireplace setup. Highly recommend McNamara Services.”
    - Peter S.
    Really Know Their Stuff
    “We purchased a wood-burning stove from McNamara over 10 yrs ago. Great stove, very nice staff, knowledgeable techs who clean/inspect. McNamara continues to service the stove for us and truly make everything easy.”
    - Kerry C.
    Fast & Efficient
    “They were great!!! I called and they came and fixed the problem right away. Now we don’t have to suffer in the heat. Thanks!”
    - Christina F.
    Great Experience
    “From start to finish, our experience with this fireplace service was excellent! Right on time, kind, and incredibly professional. Did an amazing job replacing the logs, cleaning the system, and making sure everything was working perfectly before leaving.”
    - James T.
    Patient, Helpful, and Top-Notch Service
    “I am very pleased with their work and with the scheduling process. They were very pleasant, efficient, and also took care to protect my floors and rug during their work.”
    - Mark M.
    Amazing From Start to Finish
    “I had a wonderful experience with McNamara Services. The technician was exceptional—he arrived right on time, was friendly and personable, and went above and beyond in diagnosing the issue with my fireplace.”
    - Brian E.
    Highly Recommend McNamara Services!
    “We had our gas fireplace repaired today. McNamara Services were amazing! They were thorough & took their time to do the job right. I really appreciate a business that is respectful & professional.”
    - Melinda K.

Common Problems & Simple Next Steps

Every home is different, but the concerns are usually familiar—aging systems, uneven comfort, high energy bills, or indoor air quality. We make it easy to understand what’s going on and what comes next.

  • Selecting a New System
    Choosing the right system can feel overwhelming. We’ll help you compare options, understand what fits your home, and make a confident decision.
  • Repair or Replace
    Not sure if it’s worth fixing? We’ll assess your system honestly and help you decide whether a repair or replacement makes the most sense.
  • Energy Bill Concerns
    If your energy bills are rising, your system may be working harder than it should. We’ll find the cause and help you improve efficiency.
  • Healthier Home Goals
    Indoor air quality plays a big role in comfort and health. We’ll help you create a cleaner, healthier environment for your home.
Areas We Serve

Serving Rockland County, Putnam County, and Westchester County. If you don’t see your community listed, contact us to see if we can still help!

  • Bergen County, NJ
  • Essex County, NJ
  • Hudson County, NJ
  • Orange County, NY
  • Passaic County, NJ
  • Putnam County, NY
  • Rockland County, NY
  • Sussex County, NJ
  • Union County, NJ
  • Westchester County, NY
  • Yonkers, NY

Local Expertise & Honest Service

  • Neighbors Serving
    Neighbors
    We’re proud to serve our local communities with honest recommendations and friendly service. When you call us, you’re working with a team that truly cares about your home and comfort.
  • Reliable When It
    Matters Most
    When your heat cuts out or your AC can’t keep up, you need a team that shows up and gets it done. We’re known for responsive service and solutions that last.
  • Craftsmanship
    You Can Feel
    From precision HVAC installs to detailed masonry work, we take pride in doing things the right way. The kind of quality you’ll notice every time your system kicks on or your fireplace lights up.
  • All-in-One Home Comfort Experts
    No need to juggle multiple contractors. We handle your heating, cooling, fireplaces, and chimney work all under one roof. It’s seamless, efficient, and way less stressful for you.
  • Flexible Financing Options
    Big upgrades don’t have to come with big stress. Ask us about financing options designed to make your project more manageable.
  • Helpful Maintenance Plans
    Regular maintenance means fewer surprises and better performance all year long.
  • Commercial Services Smart Solutions for Businesses of All Sizes

Let's Get You Comfortable

Tell us what you need, and we’ll take care of the rest.
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