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Find HVAC contractors in Oshawa

If you’re looking for an HVAC contractor in Oshawa, we can help. HomeStars has a selection of Oshawa HVAC companies who are ready and eager to take on your project. Posting your project is easy and free, after which available pros can register their interest. Read reviews and receive and compare multiple quotes all in one place before hiring!

Some of our top rated hvac contractors in Oshawa

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  • At Enscend HVAC Solutions, we specialize in reliable, efficient heating and cooling services across the Greater Toronto Area. Our experienced team has years of hands-on expertise in air conditioning, furnace and custom ductwork. We focus on quality craftsmanship, clear communication, and lasting comfort. Whether it’s a furnace installation, AC repair, or full system upgrade, you can count on us to get the job done right — the first time.

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  • HVAC contractor in Oshawa

    You found the right A person who makes you to call again after service

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  • Certified Master Plumber with 40 years experience. Residential, Commercial, Industrial Plumbing Experience.We do Job from small to BIG!!!

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  • Twin Spark Mechanical Inc. is a licensed HVAC company based in Toronto, providing professional installation, repair, and custom design services for both residential and commercial applications. Our expertise spans heating, air conditioning, radiant floor systems, heated driveways, and commercial refrigeration systems such as walk-in coolers and freezers. The company was founded by Philip Ou, a licensed G2 and 313A technician with a Master’s Degree in Mechanical Engineering from University of Toronto. With over a decade of experience as a Senior Product Design Engineer at a leading HVAC manufacturer, Philip brings deep technical expertise in commercial system development, energy optimization, and system reliability. Our Mission is to deliver reliable, energy-efficient, and customized HVAC solutions with engineering-grade precision and a strong commitment to long-term client satisfaction. Our Service Promise includes fully licensed and certified technical execution, tailored system designs for every project, prompt response and reliable after-service, use of premium-grade equipment for durability as well as honest pricing with no hidden costs. Twin Spark Mechanical Inc. is your trusted partner for high-performance HVAC solutions.

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  • HVAC contractor in Oshawa

    We specialize in commercial and residential electrical services, including panel upgrades and EV charger installations. Our expert team delivers fast, reliable, and safe solutions—from wiring and lighting to smart systems—ensuring top-quality work on time and on budget. Ready to power your project? Let’s get started!

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  • HVAC contractor in Oshawa

    At Solarae Power Inc., we are dedicated to providing reliable, professional, and high-quality solar energy services for both residential and commercial customers. With extensive experience in the solar industry, we specialize in the removal, reinstallation, maintenance, and servicing of photovoltaic (PV) systems of all sizes. Our expertise includes large-scale rooftop and ground-mounted solar installations, as well as residential solar energy systems. Whether your project involves a roof replacement, system relocation, equipment upgrades, storm damage repairs, or routine maintenance, our skilled team has the knowledge and experience to ensure your solar investment continues to perform at its best. Our services include: * Removal and reinstallation(Re & Re) of commercial rooftop and ground mount PV systems
• Residential solar system Re & Re • Solar system inspections and troubleshooting
• Preventive maintenance and repair services
• Performance optimization and system upgrades
• Support for a wide range of solar equipment manufacturers and system configurations

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  • HVAC contractor in Oshawa

    Experienced HVAC Technician specializing in installation, maintenance, and troubleshooting of water heaters, furnaces, and air conditioning systems. Focused on quality work, safety, and customer satisfaction.

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  • Perfect Group Construction TO is a licensed and insured general contracting company dedicated to providing high-quality, reliable, and professional services to both residential and commercial clients. We specialize in a range of essential construction and renovation services, including: Painting (Interior & Exterior) Drywall Installation and Repair Plumbing Services Tile Installation and Repair Our commitment is to delivering exceptional workmanship, clear communication, and ensuring complete client satisfaction. We strive to build lasting relationships with our clients by prioritizing integrity and attention to detail in every project.

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  • HVAC contractor in Oshawa

    ELJ Contracting delivers high-quality craftsmanship, reliable project management, and tailored solutions for your residential and commercial needs. From concept to completion, we pride ourselves on clear communication, attention to detail, and building spaces that last.

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  • SB Plumbing and Contracting is a full-service plumbing and contracting company dedicated to providing top-notch services to residential, commercial, and industrial clients. With years of experience in the industry, our team ensures that every project is completed with precision, efficiency, and attention to detail. Our services cover everything from routine maintenance and repairs to new installations and remodeling projects. In addition to our plumbing services, we offer a range of contracting solutions tailored to meet the needs of our clients. Whether it's fixing a leaky faucet, upgrading a bathroom, or installing a complex piping system, we have the skills and knowledge to get the job done right the first time.

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  • HVAC contractor in Oshawa

    Home Electrical work and fixing,change outlet and switch, replace lighting fixture, LEDpot light installation,under cabinet lighting,replace breakers and more faucet, plumbing, fix drywall

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  • HVAC contractor in Oshawa

    Top Notch Services provides an extensive range of renovation solutions for both residential and commercial settings, ensuring that no job is too small or too big for our team of experts. With over 15 years of experience, we pride ourselves on delivering high-quality craftsmanship and exceptional customer service. Our skilled professionals are committed to treating every project with the utmost care and attention to detail, just as if it were our own home. Whether you're looking to transform a single room or undertake a large-scale renovation, Top Notch Services is dedicated to bringing your vision to life with efficiency and excellence. Please contact of a quote.

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  • I am a reliable, detail-oriented handyman with a strong work ethic and a commitment to delivering high-quality results on every project. With hands-on experience in repairs, installations, maintenance, and general home improvement, I take pride in solving problems efficiently and ensuring customer satisfaction. I work with precision, using the right tools and techniques to complete each task safely and to professional standards. Whether it’s carpentry, painting, mounting, assembly, plumbing repairs, or electrical fixture installation, I approach every job with care and dedication. Known for my punctuality, clear communication, and respect for clients’ homes, I focus on building trust through consistent, dependable service. My goal is to make every client feel confident that their project will be completed correctly the first time.

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  • HVAC contractor in Oshawa

    HVAC Trades is your trusted partner for all heating, ventilation, and air conditioning needs in GTA. As a leading HVAC contractor, we specialize in providing professional installation, repair, and maintenance services for both residential and light commercial properties. Our commitment to quality craftsmanship and exceptional customer service ensures your indoor comfort is always our top priority. Choose HVAC Trades for reliable, efficient, and comprehensive climate control solutions.

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  • HVAC contractor in Oshawa

    With about 10 years experience in bathroom remodeling, we offer excellent and practical space management ideas for your proposed renovation. Choose from contemporary or traditional design ideas. We provide layout plans for clients' review. Tasks are scheduled and milestones are met accordingly, while strictly adhering to planned project schedule. Team of dedicated professionals to deliver on quality with budget friendly options. We manage clients expectations from the planning stage illustrating possible outcomes and snags.

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  • HVAC contractor in Oshawa

    We are professionals started our business on 2022 around GTA we are 5 stars google reviews ⭐️ ⭐️ ⭐️ ⭐️ ⭐️

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4.9

Top rated HVAC contractors

Our HVAC contractors in Oshawa, are rated 4.9 out of 5 based on 195 reviews from homeowners like you.

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What services are offered by HVAC contractors in Oshawa?

Oshawa HVAC companies offer a range of solutions to keep homes and offices comfortable year-round. They provide heating, cooling, and ventilation services to ensure indoor air quality and consistent temperature control, whether for snowy, cold winters or warm, humid summers typical in Oshawa.

Here are some of the most common services offered by HVAC companies in Oshawa:

  • Heating services: Installation, maintenance, and repair of furnaces, boilers, and heat pumps.
  • Air conditioning services: Installation and servicing of central AC and ductless systems.
  • Ventilation services: Various systems that manage seasonal humidity swings, help prevent condensation, and maintain balanced airflow in many Oshawa homes.
  • Indoor air quality solutions: Whole-home humidifiers, dehumidifiers, and air filtration systems to reduce allergens, manage Oshawa’s summer humidity and winter dryness.

It’s easy to get your Oshawa HVAC needs sorted on HomeStars. Just post your project, and local HVAC companies will register their interest. If you prefer, you can visit our directory of HVAC contractors to connect with pros directly.

What makes hiring HVAC contractors in Oshawa unique?

Oshawa HVAC contractors understand the city’s seasonal swings, from cold, snowy winters to hot, humid summers influenced by Lake Ontario. They know how to select and install systems that perform reliably year-round while addressing local building conditions and energy requirements.

  • Winter reliability: Extended cold spells and occasional ice storms can affect performance and efficiency of various kinds of heating systems. It’s important to ensure systems are properly sized and installed for consistent warmth.

  • Humidity management in summer: Oshawa summers can bring high humidity, which may cause indoor discomfort or mould growth. Local HVAC contractors can design and/or install systems that focus on balancing ventilation, dehumidification, and air conditioning.

  • Older home considerations: Many Oshawa homes have older ductwork or building layouts. Adapting installations and developing maintenance strategies helps systems to work efficiently with existing structures.

  • Local permit and code compliance: Significant system upgrades, gas lines, or ductwork modifications may require municipal building permits and inspections. Oshawa HVAC contractors can handle these to ensure work meets local regulations.

Find heating contractors in Oshawa on HomeStars

Finding heating contractors in Oshawa doesn’t have to be hard. HomeStars takes the cold-calling and endless searching out of the process, saving you both time and energy. Just follow these simple steps:

  1. Start by posting your project on HomeStars. Provide a clear description of your HVAC needs and, if possible, include photos to get precise quotes.
  2. Receive interest from available pros, review work history, and read customer feedback for HVAC pros in Oshawa.
  3. Connect with HVAC contractors in Oshawa to discuss your project, request and compare quotes, and ask any questions.
  4. Hire the right pro to get the job done and leave a review based on your experience. Our review system ensures that HVAC pros are rewarded for good work and held accountable for any problems.

When joining HomeStars, pros undergo checks at registration - such as ID documents, company details, certifications for regulated jobs and skill assessments - allowing you to hire with confidence.

Extra peace of mind with the HomeStars Confidence Program

The HomeStars Confidence Program is designed to give you added confidence when hiring through our platform. If your job qualifies under the Program and we determine that a claim meets the Program requirements, HomeStars may cover what you owe the Pro on an eligible job with a quote of up to CAD $10,000, in line with our terms and conditions.

What are the average costs of HVAC services in Oshawa?

The costs of HVAC services in Oshawa vary based on the type of system, the work required, and whether it’s an emergency or after-hours service. Hourly rates typically range from $85 to $140 during regular business hours, while emergency or weekend service can nearly double the cost.

Here are some typical costs for common HVAC services in Oshawa:

  • Furnace installation: about $4,000 – $7,000 for a high‑efficiency gas furnace installed.

  • Air conditioner installation: generally $4,000 – $7,000 for a central AC system.

  • Heat pump installation: around $4,200 – $7,800, with ductless systems on the lower end and larger capacity units on the higher end.

  • Ventilation services: duct cleaning often ranges from $300 – $600, while installing an HRV or ERV system can cost approximately $1,800 - $4,500 depending on home size and ductwork requirements.

  • Heating system maintenance or inspection: routine service visits, including filter changes and system checks, usually cost about $90 - $275.

For more detailed information on costs to expect, our guide to heating and cooling costs in Oshawa should help.

HomeStars Tip: We suggest that you clarify with your Oshawa heating contractor what’s included in their estimate, and that you request everything be detailed in a written quote. This supports transparency and avoids misunderstandings.

What to ask an HVAC company in Oshawa before hiring?

Before hiring an HVAC company in Oshawa, it helps to ask key questions to ensure the work is safe, compliant, and suited to your home’s needs.

Are you licensed and insured in Oshawa?

Most HVAC work, especially gas, boiler, or high-capacity heating systems, requires pros to be licensed. Ask your preferred HVAC contractors in Oshawa for proof of licences and liability insurance to protect yourself in case of accidents or damage.

Will you handle permits and inspections if required?

Many HVAC installations in Oshawa, such as furnace replacements, gas lines, or boiler systems, require permits and inspections under provincial and municipal regulations. Confirming that your preferred Oshawa HVAC contractor will manage permits and inspections helps ensure the work meets local codes and safety standards.

What types of HVAC systems do you work on?

Some Oshawa HVAC contractors specialize in furnaces, boilers, air conditioning, or heat pumps. Confirm they have experience with your system type to ensure proper installation or repair.

Do you offer maintenance or service plans?

Regular maintenance improves efficiency and extends system life. Check if your Oshawa HVAC contractor offers annual inspections, filter changes, or seasonal tune-ups as part of a service plan.

What system do you recommend for the most cost‑efficient heating in typical Oshawa homes?

Oshawa’s mix of older and newer houses means energy use can vary widely. Asking this helps you understand whether a heat pump, high‑efficiency furnace, or hybrid setup offers the best long‑term operating cost for your specific property.

How will you tailor airflow and ductwork for energy efficiency in my home?

Many Oshawa homes have uneven heating or airflow due to legacy duct layouts or room additions. This question checks whether the contractor plans to optimize ducts, zoning, or dampers to reduce wasted energy and improve comfort.

FAQ: Common questions about HVAC services in Oshawa

Can an Oshawa heating contractor help me decide which system is best for my home?

Yes. Oshawa HVAC contractors understand the city’s cold winters, humid summers, and typical home layouts. They can recommend the right furnace, heat pump, or hybrid system for your property, and you can easily connect with local HVAC contractors in Oshawa through HomeStars.

How can HVAC systems handle humidity near Lake Ontario in Oshawa?

Homes near Lake Ontario can experience higher summer humidity and rapid temperature changes. Oshawa HVAC contractors can size systems appropriately and recommend dehumidification or ventilation solutions to maintain comfort and protect indoor air quality.

What HVAC solutions work for older homes with limited attic or crawl space access in Oshawa?

Many older Oshawa homes have tight spaces or outdated ductwork, which can complicate upgrades. HVAC contractors can suggest ductless systems, compact units, or other retrofit options that improve heating and cooling without requiring extensive structural changes.

Do Oshawa HVAC contractors offer energy audits?

Some Oshawa HVAC contractors provide home energy assessments to identify ways to improve efficiency and reduce heating and cooling costs. These audits often consider Oshawa’s cold winter temperatures, humid summers, and building characteristics, recommending insulation, ventilation, or system upgrades tailored to local conditions. On HomeStars, you can easily find Oshawa-based HVAC contractors for audits that focus on heating and cooling, or you can find home inspectors near you for a full home audit.

Can HVAC companies in remove old equipment?

Many Oshawa HVAC companies include removal and disposal of old units as part of installation services. They ensure that outdated furnaces, boilers, or heat pumps are safely transported and disposed of according to Ontario’s environmental regulations. Confirm with your Oshawa HVAC contractor in advance whether removal is included in their services.

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