Service You Can Trust

Integrity you can feel. Your one-stop shop for HVAC, heating, cooling & master-level electrical in Windham, Greater Portland & the Lakes Region.

We never upsell unnecessary equipment — honest repairs, honest pricing.

Reviews

Highest level of overall excellence I have experienced with a heating company. Clear, concise communication, absolute pleasure working with staff. Estimate was in line with final invoice, fair pricing for parts and labor without any sticker shock surprises. Zero upsell tactics, unlike some other companies. Technicians left work areas as they found it, exactly as it was prior to the work performed, clean & tidy. Will certainly hire Northern Lights Mechanical again for any future work and/or maintenance within my home. A+ in my book.

- Xavier Echevarria

Highly recommended Northern Light Mechanical for any HVAC and Electrical needs. Chris and Maureen are really nice people to work with along with being very professional. Had a heat pump installed and the process was seamless!

- Evan Amell

Great company; always very responsive when I call for service routine or emergency they are prompt and professional and get the job done.

- Joe Miller

Got a couple of quotes for my furnace replacement. Northern Light Mechanical had the best price. Their service was impeccable. Follow up has been amazing.

- Melissa Howard

Excellent company to work with. Polite, courteous and competitive pricing. Nice clean installation and clean up after the job.

- Rich Russo

Chris and his team installed a new propane heater for hot water and an outlet for my new generator. Great quality work and reasonably priced! He also cleans my boiler and does a fantastic job. Very reliable. I’d hire him in a second!

- Phil Napolitano

The technician that came over was fantastic. He was able to explain everything about the boiler, replacement options and other heating systems in a way that was respectful, understandable and helpful. He seemed to love his job and was very professional.

- Keri Karsten

Pre-Christmas our older heating unit had been down for weeks; all the techs that were able to fit us in wanted to sell us a new system… the house was quite chilly. At the 11th hour, we were fortunate to have Chris come by, and knowing Buderus, he got us up and running within a couple hours. Nothing like a warm home on a freezing morning. No need to call anyone else. Thanking Maureen, Chris and all at Northern Lights a thousand times.

- Christian Farnsworth

Chris and his staff have maintained my apartment buildings with natural gas boilers, maintained and replaced the oil boiler in my home, and installed high efficiency heat pumps in my vacation house. He even set the electrical service on it. Northern Lights Mechanical takes care of all of my HVAC and electrical needs. Always professional and of great value.

- Tim Libby

You couldn’t ask for a better team to solve your plumbing or heating issues or upgrades. They just installed a new hot water heat pump and we couldn’t be happier. Not only was the install flawless but the workmanship and cleanliness was exceptional as well. Highly recommended!

- Gerald Doyon

Trusted HVAC, Electrical & Inspection Services in Greater Portland and the Lakes Region

Honest Recommendations. Licensed Expertise. Work You Can Trust.

When your heating, cooling, electrical, or building system is not working the way it should, you need a contractor who will give you clear answers, not pressure you into something you do not need. Northern Lights Mechanical provides trusted HVAC, electrical, refrigeration, generator, and inspection services for residential and commercial customers across Greater Portland and the Lakes Region.

Led by our founder, Chris with over 25+ years of experience in the HVAC and electrical fields, we bring licensed expertise, practical diagnostics, and honest recommendations to every site visit. We inspect your entire system, explain what is happening, and recommend the right solution for your property, budget, and long-term needs. The HVAC and electrical fields, we bring licensed expertise, practical diagnostics, and honest recommendations to every site visit. We inspect your entire system, explain what is happening, and recommend the right solution for your property, budget, and long-term needs.

HVAC and Electrical Service Built Around Honest Recommendations

Many customers contact Northern Lights Mechanical after being told they need a full system replacement. In some cases, replacement may be necessary. But often, there may be a repair, adjustment, maintenance plan, or alternative solution that makes more sense.

That is why we look beyond the obvious problem. A heating issue could be caused by the equipment, airflow, electrical parts, controls, or even the building itself. Cooling problems might involve refrigeration, ventilation, heat pumps, or the system’s setup. Electrical problems can be caused by a single part, or a sign of a bigger system issue.

We provide service and support for:

Homeowners dealing with heating, cooling, or electrical issues
Commercial properties that need dependable HVAC and electrical expertise
Municipal buildings requiring experienced system evaluations
Breweries and local businesses with refrigeration and equipment needs
Industrial facilities that depend on reliable building systems

We have extensively worked with customers across these industries and property types, giving us experience with a wide range of equipment, operational needs, and building systems.

Our absolute goal is to help you understand the issue, explore the available options, and make informed decisions based on what works best for your property and situation.

Why Customers Choose Northern Lights Mechanical

Our Team's 25+ Years of Experience

With more than 25 years of hands-on experience in HVAC and electrical work, our team provides accurate diagnostics, practical recommendations, and reliable solutions backed by real-world expertise. Led by experienced professionals, we combine technical knowledge with exceptional customer service, taking pride in the strong relationships we build with every customer. Our goal is to deliver honest advice, quality workmanship, and a personalized experience you can trust from start to finish.

Licensed HVAC and Electrical Expertise

Northern Lights Mechanical holds major licenses provided by the State of Maine. This gives our customers confidence that your heating, cooling, electrical, generator, and inspection work is handled with professional care.

No Unnecessary Upselling

We will not sell you equipment, upgrades, or replacements you do not need. If a repair is possible, we will explain that option first.

Full-System Diagnostics

We look at the bigger picture rather than focusing only on the area where the issue appears. This helps us identify why the problem is happening and how to fix it properly.

Innovative Problem Solving

Customers often choose us because we bring up ideas other contractors may not have considered. We focus on practical solutions that support comfort, safety, efficiency, and long-term value.

Veteran-Owned, Fast Response, and Dependable Service

As a Veteran-owned business, we believe in integrity, accountability, and doing the job right. We understand how frustrating it is when contractors don't respond, which is why we're committed to providing prompt communication, fast response times, and dependable service. From your first call to project completion, you can count on us to be responsive, reliable, and focused on delivering an exceptional customer experience.

Our Commercial Services

Reliable Support for Businesses, Municipalities, Breweries, and Facilities

Northern Lights Mechanical helps commercial customers keep building systems running safely and efficiently. We work with local businesses, municipalities, breweries, industrial properties, and commercial facilities across Greater Portland and the Lakes Region.

Commercial HVAC and Refrigeration

We can service commercial heating, cooling, refrigeration, rooftop units, chillers, ventilation, boilers, and heat pumps. Our team also helps identify performance issues, reduce downtime, and recommend practical solutions for your facility.

Service and Maintenance Contracts

Commercial systems need consistent care. We can evaluate your equipment and recommend service or maintenance plans that help extend system life, reduce unexpected breakdowns, and support day-to-day operations.

Commercial Electrical Services

We can provide commercial electrical troubleshooting, lighting upgrades, generator support, service entrance work, panel upgrades, maintenance, and system evaluations. Whether the concern is unreliable power, outdated lighting, high energy use, or system capacity, we can help.

Commercial Building Inspections

We can provide inspections for customers who want to understand a building before signing a lease, completing a purchase, or planning improvements. Our real-world experience with HVAC, refrigeration, electrical, and major building systems helps uncover issues that basic inspections may miss.

Our Residential Services

Expert Home HVAC, Electrical, and Inspection Support

From heating problems to electrical upgrades, Northern Lights Mechanical helps homeowners understand what is going on and what to do next. Below are our residential services built with a focus on practical repairs, honest guidance, and long-term reliability.

Residential Heating Services

We service residential heat pumps, boilers, furnaces, propane systems, oil systems, wood systems, and pellet systems. If your system will not turn on, blows cold air, or does not heat your home properly, we can inspect the issue and recommend the right next step.

Residential Cooling Services

We help homeowners with heat pumps, air conditioning, ventilation, and cooling performance problems. If your unit is leaking, loud, clunky, or not cooling to the desired temperature, we can take a closer look and explain your options.

Residential Electrical Services

We provide electrical troubleshooting, lighting upgrades, generator support, service entrance work, panel upgrades, outlet repairs, and fuse-related service. We look at the full electrical system so customers understand both the immediate issue and any long-term needs.

Residential Inspections

We provide inspections for buyers, sellers, and homeowners who want to better understand a property before making a major decision. Our inspections are backed by hands-on HVAC and electrical experience, especially in systems that can become costly if overlooked.

Our Certifications & Industry Partnerships

Northern Lights Mechanical brings trusted credentials, manufacturer partnerships, and energy-efficiency knowledge to both residential and commercial projects.

These qualifications support our work with modern heat pumps, generator systems, energy-efficient upgrades, and practical recommendations for Maine properties.

How to Schedule a Service With US

Whether you need HVAC service, electrical work, refrigeration support, generator assistance, or a building inspection, we make the process straightforward from the start.

Step 1.

Contact Our Team

Reach out by phone or through our contact form and tell us about the issue, project, or property you need help with.

Step 2.

Schedule an On-Site Evaluation

We will arrange a convenient time to visit your home, business, or facility and assess the situation in person.

Step 3.

Receive Clear, Honest Guidance

After evaluating the system or property, we explain our findings, answer your questions, and provide practical recommendations based on your needs.

Step 4.

Move Forward With Confidence

If service, repairs, maintenance, or upgrades are needed, we will outline the next steps so you can make an informed decision with confidence.

Trusted Partners

Industry-Leading Brands

Transparent Pricing

No hidden fees, no surprise charges. See what common services cost upfront and book directly.

Boiler Cleaning

Annual maintenance

$325

Furnace Tune-Up

Oil, gas, or propane

$195

AC System Check

Seasonal inspection

$175

Electrical Panel Inspection

Safety assessment

$150

Heat Pump Service

Cleaning & performance check

$225

Generator Maintenance

Load test & inspection

$275

Diagnostic Service Call

First hour included

$125

Pre-Purchase HVAC Inspection

Full system evaluation

$350

Memberships & Certifications

Locally Trusted, Nationally Connected

Ready to Work With a Contractor You Can Trust?

If you need HVAC, electrical, refrigeration, generator, or inspection services in Greater Portland and the Lakes Region, Northern Lights Mechanical is here to help.

We stand behind our work. What you see is what you get. You can trust us to carefully inspect the issue, explain your options clearly, and recommend what is right for your home, business, or facility.