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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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  • HVAC contractor in Oshawa

    About G&D Countertop Inc. At G&D Countertop Inc., we specialize in precision stone templating, fabrication coordination, and professional installation across the Greater Toronto Area.Our approach is simple. Measure accurately. Fabricate correctly. Install flawlessly. We use advanced Flexijet digital templating technology to capture exact measurements, eliminating the guesswork and errors common with traditional methods.This allows us to deliver countertops that fit perfectly the first time, reducing delays, material waste, and costly rework. Whether it’s a residential kitchen, a renovation project, or a builder’s development, our focus remains the same. Quality workmanship, efficiency, and attention to detail. G&D Countertop Inc. was built on a foundation of technical precision and hands-on experience. We understand that every project matters, and we take pride in delivering results that meet both functional and aesthetic expectations. From measurement to installation, we aim to provide a smooth, reliable, and professional experience for every client.

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  • HVAC contractor in Oshawa

    Customer satisfaction guranted.

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  • HVAC contractor in Oshawa

    Mobile welding (Licensed) welding aluminium, pipe. mig, stig. tig welding. cwb certification.

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  • A tall man who is reliable and hardworking professional with a strong attention to detail. I take pride in being punctual, respectful, and easy to communicate with. Customers value my honesty and dedication to doing the job right the first time. My goal is simple: to provide high-quality service and make sure you’re fully satisfied with the results.

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  • I am a professional HVAC technician having experience more than 5 years, My goal is to serve people with honesty and professional service in HCAC field.

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  • HVAC contractor in Oshawa

    I’m gas technician. I’m doing this job for more than 10 years. I have a lot of experience

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  • HVAC contractor in Oshawa

    i'm a 61 yr old bricklayer/stone mason with 45 yrs of experience.im also experienced in rough framing on a few mega mansions. i have my own truck and trailer which i use for demolition and delivery of equipment,materials.

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  • HVAC contractor in Oshawa

    Licensed and experienced electrician providing reliable residential, commercial, and industrial electrical services across the GTA. Specializing in troubleshooting, wiring, panel upgrades, lighting installation, EV chargers, and smart home solutions. Quality workmanship, honest pricing, and customer satisfaction are our priorities.

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  • HVAC contractor in Oshawa

    At Iron Fox, we specialize in high-quality outdoor firepit installations, window replacements, and HVAC services across the GTA. With a focus on detail, safety, and lasting workmanship, our team brings reliability and a personal touch to every project. Whether you’re upgrading your home’s comfort, adding outdoor features, or improving energy efficiency, we’re here to help — professionally and affordably.

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  • HVAC contractor in Oshawa

    Need a Painter, HVAC contractor, Plasterer, General contractor, Window Contractor, Security specialist and business services, Flooring Contractor, Electrician, Handyman, Landscaping Company, Carpenter, Paving Contractor, Roofing specialist, Tiler, Upholsterer, Bathroom Renovation Company, Cleaning company, Mirrors & Glass specialist, Appliance repair specialist, Pool company, Drywall specialist, Locksmith, Concrete Specialist, Garage Specialist, Countertops Specialist, Fences & Gates Specialist, Gutters & Eavestroughs Specialist, Home Electronics Specialist, Siding Specialist, Condominium/Apartment Specialist, Plumber, Refrigeration specialist, Cabinet maker, Mason, Excavation Specialist, Metal worker, Kitchen Renovation Company & Stairmaker based in Toronto or nearby? Beachpatrol Group can help you. We pride ourselves on the quality work that we deliver to each and every client. Contact us to talk about your job and get a quote.

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  • Noah Canadian Corp is a trusted HVAC company serving Richmond Hill and the Greater Toronto Area. We specialize in installation, repair, and maintenance of furnaces, air conditioning systems, heat pumps, and ventilation systems. Our goal is to deliver reliable, efficient, and high-quality service for every customer. With professional tools and hands-on experience, we focus on fast response, honest pricing, and customer satisfac

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  • HVAC contractor in Oshawa

    "Hi, my name is Riazullah,Wafa, and I’m a licensed professional electrician with 10 years of experience. I specialize in [residential/commercial/industrial] electrical work, and I’m committed to delivering safe, high-quality service. I'm here to help with [brief summary of the job], and I’ll make sure everything is done up to code and with minimal disruption to your day."

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  • HVAC contractor in Oshawa

    We are a company out of port hope Ontario. Specialize in pool installation, interlock, fence and deck building, junk removal and more!

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  • HVAC contractor in Oshawa

    Professional HVAC technician serving the GTA with reliable installation, repair, and maintenance services. I specialize in furnaces, air conditioners, thermostats, ductwork, and troubleshooting system issues. I provide clear quotes, fair pricing, and fast response times through Jiffy. My goal is to deliver clean, safe, and efficient work while making sure homeowners feel confident and informed throughout the job. Quality workmanship and dependable service you can trust.

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  • HVAC contractor in Oshawa

    For the last 45-plus years, I have learned specific skills in construction and renovations in the commercial/residential sector. Fully insured and have WSIB! From minor repairs to complete in-house renovations, my knowledge and experience are peace of mind when you require a seasoned professional. LIGHT CARPENTRY I am a seasoned professional carpenter with 45+ years of experience working with all wood species. I was taught at the age of 11 how to build, repair, and repurpose wood-related projects. From the raw state to the finished product, I take great care and time with each job. I do custom work and repairs to all decks, fences, and related work. Please have working drawings, even a sketch with dimensions, available for any custom work! MINOR HOME REPAIRS I have 40+ years of experience with all home repairs, including pool tiles and capstone restoration. My experience includes building, repairing, and renovating the entire building envelope. Having owned and operated a full-service renovation company as a one-stop shop, I bring many years of experience fixing all minor repairs. My ability to quickly solve and troubleshoot any job saves you big dollars. Please provide pictures of your intended work so I can come prepared. Solar Installation, Maintenance, Recycling and Repair We do it all regarding Solar installation, maintenance, and repair. I have installed Solar cooling, electric, heating, hot water, lighting, and panel installations. Having completed more than eighty-six solar-related systems in Ontario, my knowledge and experience are peace of mind. Our focus today is on decommissioning and recycling solar panel rooftop systems. DECK & FENCE INSTALLATION AND REPAIR Installation service and configuration of all decks, fences and tree houses. I have many years experience and great ideas on how to install and repair and deck, fence or tree house. SNOW PLOUGHING We have the equipment to move all types of snow including fresh, hard pack and ice. Well over 45 years in this industry with great understanding of what mother nature deals us to many unsuspecting homes and businesses.

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  • HVAC contractor in Oshawa

    ROSMON GROUP can help you with your install or repair electrical system, install or repair electrical sockets and switches, install or replace radiators, put up lighting, various small jobs, install or replace ev charger, install smart home automation, electrical inspections & pat testing, ceiling fan, install or repair bath exhaust fan, install or repair generator & interior lighting design plan request in Richmond Hill and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with ROSMON GROUP now to discuss your needs and arrange a quote.

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4.9

Top rated HVAC contractors

Our HVAC contractors in Oshawa, are rated 4.9 out of 5 based on 196 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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