When your water heater can't keep up or it's time for a replacement, Northwoods Heating LLC delivers the expert craftsmanship and honest guidance northern New Hampshire homeowners deserve. Our certified technicians bring over two decades of focused experience to every water heater project—whether you need a straightforward swap or a complete new installation.
We understand that reliable hot water is something you depend on every day—for showers, laundry, dishes, and more. That's why we take the time to properly size your water heater, evaluate your existing plumbing and fuel connections, and recommend the most efficient option for your household's needs. From selecting the right equipment to meticulous installation and startup, we're with you every step of the way.
Heat pump water heaters are an advanced, high-efficiency version of the electric water heater. Instead of generating heat directly, they pull warmth from the surrounding air and transfer it into the tank—using up to four times less energy than a standard electric water heater. New Hampshire homeowners may qualify for a $900 rebate through the NHSaves program on qualifying heat pump water heater installations. Learn more about the NH heat pump water heater rebate →
Most water heaters last 10–15 years with proper maintenance. If yours is approaching or past this range, it's wise to plan a replacement before it fails unexpectedly.
If showers are turning cold sooner or you can't run the dishwasher and a shower at the same time, your water heater may be losing capacity due to sediment buildup or a failing heating element.
An aging water heater works harder to heat the same amount of water. If your oil consumption or electric bill has increased without a change in usage habits, a new high-efficiency unit could significantly reduce your costs.
Rusty or discolored hot water is a strong sign of internal tank corrosion. Once a tank begins to rust from the inside, replacement is the safest and most cost-effective solution.
Visible rust, moisture, or pooling water around the base of your tank means failure is likely imminent. A leaking water heater can cause serious water damage to your home if not addressed quickly.
Unusual sounds often indicate heavy sediment buildup at the bottom of the tank, which reduces efficiency and accelerates wear on the system.
If you've called for water heater repairs more than once in the past year, those costs can quickly exceed the value of your aging unit. A new, reliable water heater often makes more financial sense.
Expanding your living space or adding fixtures increases your hot water demand. Now is the perfect time to install a properly sized water heater that can keep up with your household's needs.
Step 1: Free Consultation & Assessment
We start by evaluating your household's hot water needs, existing water heater, and plumbing setup. We'll discuss your budget, walk through the differences between oil-fired, indirect, and electric water heaters, and help you select the right type and size for your home—no pressure, just honest guidance from a local heating expert.
Step 2: Detailed Proposal & Scheduling
You'll receive a clear, written proposal outlining the work, equipment specifications, timeline, and cost. If you're considering a heat pump water heater, we'll include information about the NHSaves rebate so you can factor in the savings. Once approved, we'll schedule your installation at a time that works for you, typically within 1–2 weeks.
Step 3: Professional Installation
Our certified technicians arrive on time and work efficiently to minimize disruption to your home. We handle all aspects of the installation including removing your old water heater, installing the new unit, connecting fuel lines, water piping, or electrical circuits as needed, running all necessary control wiring, and ensuring proper venting and code compliance.
Step 4: Testing, Inspection & Walkthrough
Before we leave, we thoroughly test your new water heater to verify proper operation, check for leaks, and confirm hot water is reaching every fixture in your home. We'll walk you through how to operate your system, adjust the temperature, and maintain your investment. You'll have our number for any questions.
And surrounding northern New Hampshire communities.
Not sure if we service your area? Give us a call at (603) 348-4251.
Most residential water heater installations are completed in half a day, typically 3–5 hours depending on the type of water heater and the complexity of your plumbing and venting setup. We'll provide a specific timeline during your consultation. Our goal is to have your hot water back as quickly as possible.
Water heater installation costs vary based on the type of unit (oil-fired, indirect, or electric), tank size, efficiency rating, and your home's existing plumbing configuration. Most residential installations in northern NH range from $2,500 to $5,500 including equipment, labor, and permits. Heat pump water heaters may qualify for a $900 NHSaves rebate that helps offset the upfront cost. We provide transparent, written quotes with no hidden fees.
We assess your household's hot water demand based on the number of people in your home, number of bathrooms, and your daily usage patterns. Proper sizing is critical—an undersized water heater will leave you running out of hot water, while an oversized unit wastes energy. We'll recommend the right fit for your household.
Yes, removal of your existing water heater and proper disposal is included in our installation service. We'll also clean up completely before we leave—you won't even know we were there except for your new, reliable hot water.
We install and replace three main types of residential water heaters: oil-fired water heaters, indirect water heaters (which work with your existing boiler), and electric water heaters, including high-efficiency heat pump models. During your consultation, we'll explain the pros and cons of each and recommend the best option based on your home's heating setup, hot water needs, and budget.
A heat pump water heater is a high-efficiency electric water heater that pulls heat from the surrounding air instead of generating it directly. They use up to four times less energy than a standard electric water heater. New Hampshire residents may qualify for a $900 rebate through the NHSaves program on qualifying models. We can help you determine if a heat pump water heater is a good fit for your home during your consultation. Learn more about the NHSaves rebate →
An indirect water heater connects to your existing boiler and uses it to heat your domestic hot water through a heat exchanger. Because it leverages the boiler you already have, it's one of the most efficient options available—especially during the heating season. If your boiler is in good shape, an indirect water heater can be a great long-term investment.
We recommend annual maintenance to keep your water heater running efficiently and extend its lifespan. Regular service helps prevent sediment buildup, maintains efficiency, and catches small issues before they become costly repairs.
