A 4000 psi electric pressure washer would definitely be a profesional grade model. As to how they compare to an equivalent gas model, you would get the same performance without the maintenance that would be required from a gas model.
This specific model pressure washer is a great quality machine along with all models that are manufactured by Pressure Pro. Unfortunately we could not ship this product to Canada, we only can ship products to Canada that are shipped by UPS or Fedex. This machine would ship by freight carrier. You would have to contact Pressure Pro directly to find out if they have a dealer in BC.