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All is well with “Caswell”

Top-Rated Salem HVAC Company

When you need HVAC services in Salem, you’re looking for more than just heating or cooling; you want comfort that doesn’t drain your wallet or waste energy. At Caswell, we’re here to help you enjoy consistent temperatures, manageable bills, and a system you can count on. Our experienced, reliable team works with both traditional and advanced HVAC systems, providing expert diagnosis for older equipment and recommending smart upgrades that save you money over time. You can trust us to keep your home or business running smoothly year-round. Call us today at (334) 663-0306 or book a consultation online.

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(334) 663-0306
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5.0

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290+ Reviews

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4.3

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15+ Reviews

All-Inclusive Salem AC Services

Whether you need a small split system for your home or a large rooftop unit for your business, we’ve got you covered. Proper sizing is key. Oversized systems waste energy, while undersized units can’t keep up on hot days. We’ll guide you on duct sealing, attic insulation, and smart thermostat integration to boost your AC’s efficiency.

Our services cover installation, repairs, seasonal tune-ups, and long-term maintenance for both residential and commercial customers. See what our customers have to say.

Salem AC Installation and Replacement

If your AC is over 10 years old, breaks down more than it runs, or has your energy bill climbing every month, it’s probably time for an upgrade. We walk you through the process, helping you pick the right size and features, whether that’s inverter technology, variable speed systems, or smart-compatible units.

We install and service ENERGY STAR®-rated AC units that meet or exceed Alabama’s SEER2/EER2 efficiency standards. Learn more about our AC installation services and start saving on energy today.

AC Repair in Salem, AL

An AC breakdown can impact your health, work productivity, and indoor air quality. Our diagnostic process checks thermostat calibration, electrical connections, refrigerant levels, airflow, coils, and condenser performance.

We offer same-day repairs for urgent issues, and you’ll always get flat-rate pricing with no hidden fees. Before we start any work, we’ll explain your options so you can make an informed choice. Book your AC repair now and get your system back fast.

Salem AC Maintenance

Think of AC maintenance as a small investment that saves big. Our seasonal tune-ups are tailored for Alabama’s climate, ensuring your system is ready for peak summer heat.

Our checklist includes:

  • Cleaning condenser coils
  • Checking refrigerant charge
  • Lubricating moving parts
  • Testing capacitors
  • Inspecting ductwork
  • Verifying thermostat operation

Our maintenance agreements give you priority scheduling, repair discounts, and detailed system performance reports.

Air Duct Repair & Replacement in Salem

Leaky ductwork can waste 20–30% of conditioned air, according to Energy Star. We use duct blasters, thermal cameras, and pressure testing to pinpoint leaks.

Our services include:

  • Sealing joints with mastic or foil tape
  • Insulating ducts and attic runs
  • Balancing airflow for even temperatures

For badly damaged, moldy, or outdated ducts, we offer full replacements following EPA safety guidelines. See our air duct services.

Salem Thermostat Installation and Repair

A smart thermostat like Nest or Ecobee can cut your HVAC energy use and lower your utility bills. We install, calibrate, and repair both programmable and smart thermostats for single-zone and multi-zone systems.

We’ll make sure your new thermostat works with your existing HVAC setup and supports your energy-saving goals. Check out our thermostat services to see how we can help.

Salem Heating Services: Professional Heating System Care

Salem winters aren’t as brutal as up north, but when the temps drop into the 30s, you want a heating system you can trust. We handle installation, repair, replacement, and maintenance for furnaces, heat pumps, and hybrid systems. 

Whether you have a single-family home, a large commercial building, or need care for boilers, packaged units, or zoned heating systems, we’ll make sure you stay warm without wasting energy or money.

Heater Repair Services in Salem

A failing heater in winter can lead to frozen pipes, unsafe conditions, and costly emergency fixes. That’s why we treat heating issues with urgency. Our techs run a full diagnostic, from electrical testing and thermocouple checks to airflow measurements and refrigerant evaluation for heat pumps.

We fix:

  • Faulty ignition systems
  • Broken blower motors
  • Clogged filters
  • Pilot light problems
  • Heat pump defrost failures

We also follow Alabama gas line safety standards for natural gas and propane heaters. Same-day service is available, so you’re not stuck in the cold. Learn more about our furnace repair services.

Salem Heater Maintenance

Annual maintenance is the easiest way to avoid mid-winter surprises. According to ENERGY STAR®, skipping it means your system loses efficiency and costs you more to run. Our maintenance service covers:

  • Cleaning burners
  • Inspecting electrical parts
  • Lubricating motors
  • Checking thermostat calibration
  • Testing safety controls
  • Replacing filters
  • Gas leak and CO safety inspections

With our furnace maintenance plans, you get priority scheduling, repair discounts, and a documented service history to protect your warranty.

Furnace Installation and Replacement in Salem

If your furnace is 15–20 years old, repairs keep adding up, your heat is uneven, or the AFUE rating is low, replacement may be the smart move. In Alabama, switching to a high-efficiency model (95%+ AFUE) can slash heating costs compared to old 70–80% units.

Our process includes:

  • Removing the old unit
  • Sealing/adjusting ducts
  • Ensuring proper venting
  • Inspecting gas lines
  • Commissioning the system
  • Smart thermostat integration

We’ll walk you through financing options, IRA tax credits, and rebates. See our furnace installation services and get a system built for decades of efficient, safe heating.

Salem Heat Pump Repair and Installation

Heat pumps work by moving heat instead of creating it, which makes them up to 300% efficient in mild weather. For new installs, we size them correctly, ensure SEER2/HSPF2 compliance, and optimize your ducts. You could even get rebates. Alabama Power offers up to $1,000, and Central Alabama Electric Co-op gives $350/ton for ≥15 SEER units.

Our installation steps:

  • Site evaluation
  • Old equipment removal
  • Refrigerant line flushing
  • System placement and connection
  • Performance testing

We also service commercial VRF/VRV systems for zoning flexibility. Repairs include reversing valve fixes, defrost cycle corrections, refrigerant leak repair, and thermostat replacements. See our heat pump repair and installation options.

Commercial HVAC Service in Salem

Commercial HVAC systems are more complex, run longer hours, and face strict efficiency rules. We handle rooftop package units, chillers, boilers, VRF/VRV systems, and commercial ductwork.

Our team ensures compliance with ASHRAE 90.1 standards and Alabama building codes while keeping your system reliable. With proactive maintenance contracts, you can avoid unexpected downtime and expensive emergency calls.

We respond quickly when you need us, so your operations don’t skip a beat. Learn more about our commercial HVAC services and keep your business comfortable, efficient, and code-compliant.

Caswell: Salem HVAC Specialists for Every Need

We know your comfort can’t wait. That’s why we offer same-day service, fast response times, and flexible financing options to make HVAC solutions accessible.

Our comfort club membership gives you seasonal tune-ups, priority scheduling, and exclusive discounts. From tailored residential solutions to large-scale commercial projects, we keep Salem homes and businesses running efficiently all year.

Call us at (334) 663-0306 or contact us to schedule your service and see why so many Salem residents and business owners trust us for their heating and cooling needs.

Ready to Get Started?

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(334) 663-0306

Comfort Club Membership

$20

Per Month

Keep your system running strong all year long with our Comfort Club Membership. For just $20 a month, you’ll get seasonal HVAC tune-ups, priority scheduling, exclusive discounts, and peace of mind knowing your comfort is always covered.

Two Visits Per Year
Pre-Season Scheduling
Priority Service
10% Off All Repairs
10% Off Indoor Air Quality Products
10% Off WiFi Thermostats
Member-Only Promotions
Lifetime Part Replacement Guarantee
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Get in Touch

Frequently Asked Questions

What areas do you serve?

We proudly serve Opelika and surrounding areas, including Auburn and the greater Lee County region.

Do you offer 24/7 emergency service?

Yes! When your AC or heater system goes down, we’re just a call away. Day or night, weekends or holidays, it doesn’t matter. We are here to help.

What brands do you service?

We work on all major HVAC brands and systems. Whether it’s a newer unit or an older model, we’ve got the experience to fix it right.

How do I know if I need a new AC or just a repair?

If your system is over 10–15 years old, constantly breaking down, or causing energy bills to spike, we can help you decide whether an ac repair or ac replacement is the smarter move.

Is your company licensed and insured?

Absolutely. We’re fully licensed in the state of Alabama and carry all required insurance for your peace of mind.

How often should I service my HVAC system?

We recommend a tune-up at least once a year. Ideally in spring for cooling and fall for heating. Regular HVAC maintenance keeps your system efficient and helps avoid costly breakdowns.

What’s included in a maintenance visit?

Our tune-ups include a full system inspection, cleaning, filter check, refrigerant level check, and performance testing. All designed to catch problems early and save you from needing a new unit.

How do I schedule an appointment?

Just give us a call at (334) 663-0306 or email info@caswell.loc and we’ll get you on the schedule fast.

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All is well with “Caswell”

One Call.
We’re There.

Whether you need an AC fix, an HVAC tune-up, or a full heater replacement, our team is ready to bring the comfort back. Reach out now and let’s get to work.

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(334) 663-0306