The best way to avoid a heating emergency on the coldest night of the year is to make sure your system never reaches that point. At Northwoods Heating LLC, our routine maintenance and diagnostic services are designed to keep your oil furnace or boiler running at peak performance—season after season.
Our certified technicians bring over two decades of hands-on experience with oil heating systems to every service call. We don't just clean and check boxes—we thoroughly inspect your entire system, identify issues before they become failures, and give you an honest assessment of your equipment's condition. Whether it's a routine annual tune-up or a diagnostic visit to track down an intermittent problem, we'll make sure you have the information and the service you need to stay warm all winter.
Annual maintenance is the single most effective way to prevent breakdowns, maintain efficiency, and extend your system's lifespan. If it's been more than 12 months since your last service, it's time to schedule one before heating season begins.
A gradual increase in fuel consumption without a change in your usage habits is a classic sign that your system is losing efficiency. Dirty burners, a clogged nozzle, or improper combustion settings can all cause your system to burn more oil to produce the same heat.
Banging, rumbling, clicking, or whistling sounds that weren't there before are often early warnings of mechanical wear, loose components, or combustion issues. Catching these early can prevent a minor repair from becoming a major one.
If some rooms aren't reaching temperature while others are comfortable, your system may be struggling to distribute heat properly. This can point to issues with the burner, heat exchanger, or distribution system that a diagnostic visit can quickly identify.
A furnace or boiler that's turning on and off too frequently, or one that runs non-stop without reaching your target temperature, is telling you something is wrong. Both are symptoms that warrant a professional diagnostic evaluation.
Any visible soot around your furnace or boiler, smoke from the flue, or a persistent oil smell in your home should be addressed immediately. These are signs of incomplete combustion or a venting issue that can affect both efficiency and safety.
As oil heating systems approach the 10-15 year mark, annual maintenance becomes even more critical. Regular service keeps older equipment reliable and helps you plan for replacement on your terms rather than in an emergency.
Step 1: System Inspection & Visual Assessment
We begin with a thorough visual inspection of your entire heating system—burner, heat exchanger, flue, fuel lines, tank connections, controls, and safety components. We're looking for anything that's worn, corroded, improperly adjusted, or at risk of failing.
Step 2: Cleaning & Tune-Up
We clean the burner assembly, replace the oil filter and nozzle, clean the combustion chamber, inspect and clean the heat exchanger surfaces, and clear the flue of any obstructions or buildup. A clean system burns fuel more efficiently and runs more reliably.
Step 3: Combustion Analysis & Calibration
Using professional diagnostic equipment, we test combustion efficiency and adjust burner settings to ensure your system is operating at optimal performance. This step alone can meaningfully reduce your fuel consumption.
Step 4: Controls, Safety, & Final Report
We test all controls, safeties, and limit switches to confirm everything is functioning as designed. Before we leave, we'll walk you through our findings, explain any concerns, and give you a clear picture of your system's condition—including any repairs or upcoming needs to plan for.
And surrounding northern New Hampshire communities.
Not sure if we service your area? Give us a call at (603) 348-4251.
We recommend annual maintenance for all oil furnaces and boilers, ideally scheduled in late summer or early fall before the heating season begins. If your system is older or has had recurring issues, more frequent service may be appropriate. We'll advise you based on what we find.
Routine maintenance pricing varies based on your system type and its condition. Most standard annual tune-ups for residential systems in northern NH range from $150 to $250. We provide upfront pricing before any work begins so there are no surprises.
A routine maintenance visit is a scheduled, preventive service—cleaning, inspecting, and tuning your system. A diagnostic visit is focused on troubleshooting a specific problem: unusual behavior, a fault code, a noise, or an efficiency issue. Both are services we offer, and sometimes a maintenance visit uncovers something that leads to a diagnostic conversation on the same call.
Absolutely—in fact, that's exactly when you should schedule it. Many heating system issues develop gradually and aren't noticeable until they've already affected efficiency or caused a component to fail. Regular maintenance catches problems while they're still small.
Yes. We keep records of your service history and will reach out each year when it's time to schedule your annual maintenance. You won't have to keep track of it yourself.
Always. If we identify any issues during a maintenance or diagnostic visit, we'll explain exactly what we found, what it means, and what your options are. We never perform additional work without your approval, and we never recommend repairs that aren't necessary.
