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HVAC Routine Maintenance & Annual Cleaning in Plaistow, NH
Is Your Heating or Cooling System Ready for What's Coming?
New Hampshire weather doesn’t give you a second chance. One week you’re dealing with sub-zero wind chills, and the next you’re cranking the AC. If your heating or cooling system hasn’t been serviced in over a year, you’re rolling the dice every season — and that’s a gamble no Plaistow homeowner should take.
At Big Al’s Services, we provide trusted HVAC routine maintenance and annual cleaning right here in Plaistow, NH. We’re local, we’re licensed, and we’ve helped over 1,200 homeowners in this area keep their systems running clean, safe, and efficient — season after season.
Why Plaistow Homeowners Skip Maintenance — and Why It Costs Them More
We hear it all the time:
“It’s still working, so it must be fine.” “I’ll get it checked before winter.” “I didn’t realize it needed annual service.”
The truth is, most heating and cooling breakdowns don’t happen overnight. They build up quietly — dirty filters, worn components, small issues that never got caught — until one cold January morning, you wake up to no heat. Or a July afternoon when your AC gives out right when you need it most.
Regular HVAC maintenance isn’t just about keeping things running. It’s about avoiding the stress, the emergency bills, and the discomfort that comes with a system failure at the worst possible time.
What's Included in Big Al's Routine Maintenance & Annual Cleaning
When you schedule a maintenance visit with Big Al’s Services, our certified technicians go through a thorough inspection and cleaning of your entire heating or cooling system. Here’s what we cover:
Filter Replacement Clogged or dirty filters make your system work harder than it needs to, driving up energy bills and wearing out components faster. We replace filters as part of every maintenance visit.
Full System Inspection We check your boiler, furnace, oil tank, ductwork, electrical connections, and all key components to catch anything that could turn into a bigger problem. If something needs more than a tune-up, we handle boiler repair, furnace repair, and oil tank repair too, one company for the whole job.
Boiler & Furnace Tune-Up We clean critical parts, adjust settings, and make sure your boiler or furnace is operating at its best. A properly tuned system uses less fuel and runs more reliably through the winter.
Condenser Coil & Fan Motor Cleaning For cooling systems, built-up dirt and debris on coils and motors will reduce how well your AC works — and make it run longer to reach the same temperature. We clean these thoroughly so your system doesn’t have to strain.
Thermostat Calibration An off-calibrated thermostat means your system runs more than it should — or less. We make sure it’s reading and responding accurately so your home stays comfortable without wasting energy.
Safety Check Beyond efficiency, we check for anything that could pose a safety risk — carbon monoxide concerns, loose connections, or signs of system stress that need attention.
The Real Cost of Skipping Your Annual HVAC Service
Most homeowners don’t realize how much a neglected system actually costs them:
- Higher energy bills from a system working harder than it needs to
- Shorter equipment life, leading to earlier replacement costs
- Emergency repair calls — which are always more expensive than planned maintenance
- Voided manufacturer warranties that require annual servicing to stay valid
- Poor indoor air quality from dirty filters and ducts
One annual cleaning with Big Al’s Services is a small investment that protects a much bigger one.
Why Homeowners in Plaistow Choose Big Al's Services
5-Star Rated
Over 800+ Google reviews and an A+ BBB rating. We don't ask for your trust — we earn it.
Licensed & Certified
NH Gas License #GF2111411 | NH Oil License #HT2100417 | MA Oil License #BU-319225. You're in qualified hands.
Mitsubishi Diamond Dealer
For homes with Mitsubishi systems, that means factory-trained service and access to extended warranty coverage.
Energy Kinetics Preferred Contractor
We're certified to service and maintain Energy Kinetics boilers, one of the most efficient heating systems available.
Honest Pricing
No surprise fees. We tell you what's needed and what it costs — before we do anything.
24/7 Emergency Service
If something goes wrong outside of regular hours, we're available. Day or night.
Veteran Friendly
We're proud to serve those who served. Let us know if you're a veteran when you book.
Don't Wait Until Something Breaks — Book Your HVAC Tune-Up Today
Your heating and cooling system works hard all year in Plaistow’s climate. Give it the attention it needs before peak season hits. Big Al’s Services makes it easy to schedule, shows up on time, and gets the job done right.
Call Us Office Hours: Monday–Friday, 8:00 AM – 4:00 PM
Services
Get In Touch
We’re here to help with all your heating and cooling needs — from routine maintenance and installations to fast repairs and emergency service when something breaks down. Reach out anytime, day or night.
Frequently Asked Questions About HVAC Maintenance in Plaistow, NH
Once a year is the standard recommendation for most heating and cooling systems. If you have both a heating and a cooling system, ideally you'd service each one before its heavy-use season — furnace/boiler in the fall, AC in the spring.
Most maintenance visits take between 1 and 2 hours, depending on the size of your home and the condition of your system.
Over time, dust and debris build up inside the system, making it work harder, increasing fuel costs, and raising the risk of a breakdown. Some manufacturer warranties also require annual servicing to remain valid.
Yes. We handle furnaces, boilers, central air systems, mini splits, and oil heating systems. One company, everything covered.
In most cases, yes. We serve the Plaistow area and try to accommodate scheduling as quickly as possible. Call or submit a service request to check availability.
Yes — as an authorized Mitsubishi Diamond Dealer, we're specifically trained to service Mitsubishi heating and cooling systems, and we can help you maintain your extended warranty coverage.
We can set up recurring seasonal maintenance so you never have to remember to schedule it yourself. Ask about our maintenance plan options when you book your first visit.
Keeping Systems Running Across Southern NH & Northern MA
We’re based right here at 22 Danville Rd, Plaistow, NH 03865 — so when you call, you’re getting a local HVAC team that knows this area, knows the weather, and can usually get to you fast. We serve Plaistow and the surrounding towns including:
- Fremont, NH
- Chester, NH
- Londonderry, NH
- Brentwood, NH
- Exeter, NH
- Kingston, NH
- Danville, NH
- Kensington, NH
- Hampton, NH
- Derry, NH
- Hampton Falls, NH
- Nashua, NH
- Hampstead, NH
- Newton NH
- Atkinson, NH
- Salem, NH
- Windham, NH
- Newburyport, MA
- Methuen, MA
- Newbury, MA
- Lawrence, MA
- Andover, MA
- North Andover, MA
- Haverhill, MA
- Merrimac, MA
- Groveland, MA
- Georgetown, MA
- Boxford, MA
- Rowley, MA
- Amesbury, MA
When you search for HVAC maintenance near me, Big Al’s is the team your neighbors are already calling.
1,200 Homeowners in Your Area Trust Big Al - Book Your Service Today!
When it comes to getting the job done right, your neighbors know who to call. Big Al is known for dependable service, honest pricing, and exceptional results. See the difference for yourself—book your service today and get started hassle-free.
