Sandy Hamilton Plumbing and Heating Inc.   Northern Heating and Ventilation
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About Us


On January 1, 1976, at the age of 25, Alex Hamilton began operating a sole proprietorship heating company carrying on business under the name of “Hamilton Heating”. The company was located about 5 miles east of the Town of Durham in a part of Glenelg Township locally known as “The Glen” on the same property as the Hamilton family resided.

It was a small business in the beginning consisting mostly of annual cleaning and maintenance of oil furnaces and a 24 hour repair service. Over the years the business grew to include installation of both oil and gas furnaces and air conditioners as well as maintenance and repair services.

The business grew steadily over the years and eventually a plumber was hired and two heating technicians to keep up with the current customer base and their needs. One of the new technician’s was Alex’s son Sandy Hamilton.

Real estate in the area was flourishing as was the plumbing and heating business and Sandy’s ideas for growth of the company. On January 5, 2000, Sandy took over the operation of the company renaming it “Sandy Hamilton Heating”. Under his supervision Sandy steadily increased the business including the number of certified technicians and service vans to better serve his customers.

June 1, 2009, Sandy made the decision to incorporate and the small heating business that began 33 years ago became known as Sandy Hamilton Plumbing & Heating Inc. In addition to the services already provided, Sandy began upgrading the business facilities, equipment and service vans. He also hired additional office staff to assist him in providing customer service as efficiently as possible.

Sandy expanded the business in May, 2013, by purchasing the well-established and reputable companies known as Northern Heating and Ventilation and Classical Gas with locations in Berkeley and Owen Sound. These businesses have now been amalgamated to the primary location in “The Glen” with a secondary warehouse in Berkeley. This purchase added an extensive customer base, geothermal ground source heating and cooling systems as well as additional technicians, sales and office staff.

Sandy and his employees work diligently to provide the best equipment and dependable service to satisfy the needs of their customers.

We are a member of the Better Business Bureau.


Our team consists of TSSA licensed Gas Technicians, Oil Burner Technicians, Liquid Propane Technicians, Sheet Metal Technicians, Plumbers and Apprentices.

Click here for Employment Opportunities


Thank you for the outstanding service and high quality of work! You and your staff are exceptional. Best Regards Mark and LuAnn P.

What a terrific job of work you did. It might even set a 5 or 6 day record from your first inspection day-approval of a new furnace followed in a blink with the complete installation. We are proud to have your business sign affixed visibly prominent on a tree at our property entrance. Thank you all. Respectful of your skills and the work you do so well.  George O.

We appreciate the well done, and very organized, clean working ethics your people have. Thank you for their diligence, looks very good so far.
Cosmin C.

Sandy, Bob and Ryan carried out the work here with super efficiency and professionalism - they do indeed represent your company with flying colours - another thank you to you, Bob and Ryan - cheers
Sharron S

Your installers were here today and all is complete, looks good.  But also, I wanted to comment that the team were really good men.  They were polite, appearing very competent (I don’t know enough to know for sure, but I felt good about it), efficient in the process and informative.  They cleaned up the work site well.  Overall an excellent experience.  I wanted you to know.  I hope the unit performs as well as they did! 
WJ Sutton

Thanks for doing such a great job.  Everything was left clean, and our water heat (temperature) is 100% better.  I also appreciate the time taken to explain how it works.
Cathie S.

We would like to thank you for coming when you did.  We expected our bill to be higher and we appreciate your helping us.  You left before we could ask you to join us for lunch!
Jim & Jean O.

I just wanted to let you know that the technician from Sandy Hamilton Plumbing and Heating was over today to help me with the issues I was having.  He was wonderful. He explained everything thoroughly to me so I would have a good understanding.  I feel much more comfortable knowing how things are working.  He worked extra hard trying to find the noise in the furnace.  Because of the ambient noise around us and the outside noises, it was difficult to say whether it was still present.  He tried several things he felt may be causing the unwanted noise.  I told him that if he didn’t see/hear anything out of the ordinary and it was throwing heat, then I wasn’t too concerned.  He did a great job!


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