HVAC Installation & Service
Contact UsAt Daigle Oil Company, we keep your home or business comfortable year-round with complete heating and cooling solutions. Our full-service HVAC team handles everything from system sales and installation to maintenance, repairs, and upgrades.
Specializing in propane and oil-fired heating systems, we also provide cooling solutions, energy-efficient upgrades, and indoor air quality improvements. Whether you need a repair, replacement system, or expert guidance on improving efficiency, our knowledgeable service team delivers professional recommendations designed to enhance comfort, performance, and reliability.
Want to learn more? Explore our heating and cooling services below and experience the trusted local service Daigle Oil Company has proudly provided for generations.
Service Protection Plan
Breakdowns are stressful, especially in extreme temperatures.
DOC Service Protection Plans are designed to reduce surprises by combining preventative maintenance with coverage options that help protect your heating system and your wallet.
Service Protection Plan
Annual Tune-Up
Reliable Service. Lasting Comfort.
Protect your comfort and extend the life of your heating system with an annual tune-up. Our certified technicians will inspect, clean, and fine-tune your equipment to help ensure it operates efficiently, so your system is ready for another cold Maine winter.
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Equipment Financing
If you need to replace equipment or make a comfort upgrade, financing can help you avoid waiting until a small issue becomes a bigger emergency.
DOC offers financing for qualifying projects so you can get the work done and pay over time.
Equipment Financing Options
Schedule Now
If you need service, maintenance, or an installation consultation, the fastest next step is to schedule a visit. If this is an emergency, call so we can help quickly.
Contact a Comfort SpecialistService & Installation FAQs
DOC provides installation, maintenance, and service support for heating and cooling systems, plus air exchangers for ventilation and indoor air quality. This section also includes conversion-to-propane support, Service Protection Plans, seasonal specials, and financing for qualifying projects.
If the system still heats or cools reliably and the repair is straightforward, a repair may make sense. Replacement is often worth considering if you are dealing with frequent breakdowns, rising repair costs, uneven comfort, unusually high fuel or electric bills, or equipment that cannot keep up in peak weather. DOC can evaluate your system and help you decide based on condition, performance, and long-term cost.
DOC installs and services common heating equipment like boilers, furnaces, water heaters, space heaters, fireplaces and related systems based on your fuel type and setup. DOC also supports propane systems and can help customers explore the right configuration for their home or business.
DOC supports cooling equipment installation and maintenance based on your space and comfort goals. This can include central air systems and heat pump or mini split type systems depending on your property and needs.
DOC is structured to support fuel delivery and comfort equipment together, which means you can get help choosing the right setup, maintaining it, and keeping it fueled without juggling multiple companies.
A Service Protection Plan is designed for customers who want fewer surprises. It typically combines preventative care and coverage options so you have a clearer plan for service needs and potential repairs. It is especially helpful for customers who rely on heating oil or propane systems and want added peace of mind during winter.
Yes. If you have an urgent no-heat situation, safety concern, or a system failure at a bad time, emergency support is available. For emergency needs, calling is the fastest way to get help.
Heating maintenance is designed to keep equipment running efficiently and to catch small issues before they become breakdowns. A tune-up can help reduce fuel waste, improve system performance, and lower the chance of a no-heat call when the weather is at its worst.
Cooling maintenance helps prevent mid-summer breakdowns and keeps your system running efficiently. It can also help address issues like weak airflow, systems that run nonstop, poor cooling performance, and higher electric bills due to inefficiency.
An air exchanger helps remove stale or humid indoor air and replaces it with filtered fresh air while helping maintain temperature balance. It is especially helpful in newer airtight homes where natural ventilation is limited. Signs you might benefit include persistent humidity, window condensation, stale air, lingering odors, or a home that feels stuffy even when temperature is fine.
Yes. DOC can evaluate your existing setup, learn your goals, and recommend a propane system that fits your needs. If you move forward, DOC can support propane equipment, service, and deliveries so the process is simpler and the system is designed correctly from the start.
Yes. Financing is available for qualifying projects. This can help customers replace or upgrade equipment sooner and spread cost over time instead of waiting for a breakdown. Approval and terms depend on the program and credit requirements.
Scheduling depends on season and demand. If you are planning an upgrade, scheduling early gives you more options. If you have an urgent issue, calling is the fastest way to get clear next steps and service timing.
The most helpful details include your address, contact information, whether you are an existing customer, the type of system you have (boiler, furnace, central AC, mini split), your fuel type (oil or propane), and a clear description of the problem (no heat, short cycling, strange noises, uneven temperatures, low airflow, etc.). If possible, note when the issue started and whether it is getting worse.
For heating, early warning signs include uneven temperatures, frequent cycling, unusual noises, higher fuel use, or difficulty maintaining thermostat setpoint. For cooling, common signs include weak airflow, warm air, high humidity, strange noises, frequent cycling, or higher electric bills. Addressing these early usually prevents bigger problems later.
Start with Schedule Now or Contact Us and tell DOC what you are experiencing. The team can help you choose the correct path, whether that is a tune-up, repair visit, estimate for replacement, air quality consultation, or propane evaluation.