Spray Foam Insulation Nanaimo logo for Harbourside Spray Foam.


Spray Foam Insulation - Nanaimo BC

Harbourside Spray Foam is a family owned insulation company serving Vancouver Island. We believe spray foam is the best possible approach to a well insulated building. Harbourside’s closed cell foam is the eco responsible choice for your project. Our customers save money and increase the longevity of their buildings. Spray Foam makes sense.


While television renovation shows have increased the popularity of spray foam insulation, it is not a new product. Since the 1940’s polyurethane foam has been used in many applications. Canada’s climate, with heavy temperature swings and severe temperatures demand a product that can not only insulate but also provide protection from vapour drive and condensation.

Lead Sprayer and helper insulating a basement wall on Vancouver Island near Nanaimo BC. R12

Your island insulation provider

Spray Foam Insulation on Vancouver Island

2lb Closed Cell Spray Foam sealing this vaulted ceiling in Victoria BC.

Our spray foam can be found in home insulation, commercial buildings, farm and shop buildings, oilfield tanks and wells and mobile applications like RV’s and construction trailer and vans. 


Closed Cell Spray Foam Insulation does not an need addition vapour barrier as it is both an air and vapour barrier in one. 

R20 Basement Walls. Enerthane Eco Spray Foam. Vancouver Island.

What is Spray Foam?

Did you know that Polyurethanes have been around since 

Spray Foam is produced using specialized equipment. Two chemicals are pumped independently through hoses and are mixed in the spray foam gun. The product comes out as a liquid and rapidly expands to fill cracks and holes. Batt and Poly Insulation that is frequently used in construction requires a thin plastic sheet known as vapour barrier to seal in air and to prevent moisture from travelling from outside to inside. Without this thin sheet, batt and poly in not effective as an insulation at all.

Clean BC Rebate Program on Vancouver Island. Insulation

Get up to $5500 in rebates!

As part of the Home Renovation Rebate and CleanBC Better Homes Program, you can receive up to $5,500 in rebates for installing insulation in your home. This can help maintain even temperatures in your home, reduce unwanted outdoor noise, and reduce heat loss during the cold winter months.

Helping you save energy and make your home more comfortable

We want to help Canadians make where they live more energy efficient. The Canada Greener Homes Initiative will help homeowners save money, create new jobs across Canada for energy advisors and fight climate change.

Open Cell vs Closed Cell Foam.

Do you know what spray foam your contractor is using?

Many foam contractor use both closed cell and open cell foams depending on the requirements of the building. But what is the difference. The first evident difference would be density. Open cell foam is considered a low density foam. When you touch open cell foam it is pliable. Open cell foam is roughly half the insulating value from closed cell foam. The other major difference is the fact that open cell spray foam requires a vapour barrier. While this foam has specific uses that it is well suited to, closed cell spray foam is better suited to our climate zone. Know what is being sprayed in your home or project.

Rim Joists and concrete walls sprayed with closed cell polyurethane foam. Vancouver Island. Victoria.

Your Questions Answered.

Yes. Once spray foam has been installed by a professional company, its powerful air sealing ability prevents dust and pollens from entering and is helpful for people with allergies.

In Canada, it is safe for homeowners and pets to return to the home 24 hours the spray foam is completed.

Great question. This question should better be asked as “should spray foam be injected into my walls”. While it is possible to inject some foams into a wall’s cavity, most will not address vapour barrier concerns and then often fail to make a change. In some cases it can even make things worse.