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How To Install Attic Insulation

Whether you are moving into a new home or want to start saving money on energy bills, knowing how to install attic insulation is good information to have. If you see any gaps in the insulation or any visible beams then you can certainly use more attic insulation to keep your home at its best (and warmest).

Things That You Will Need: 

  • Safety Goggles
  • Face Mask
  • Protective Clothing
  • Utility Knife
  • Putty Knife
  • Insulation
  • Portable Work Light
  • Staple Gun
  • Gloves

1. Start To Map Out Where The Attic Insulation Will Go

  • Wearing protective clothing and protective face gear, find the spaces where there are gaps in between previously installed insulation, or anywhere you can see the construction beams. You will want to start putting up the insulation by placing it starting from the top of the cavity between the construction beams along the wall.

2. Install The Insulation

  • Install the insulation and leave a space about 2-3 inches from the wall. By using your utility knife you can cut the insulation to fit.
  • Cut the insulation from the bottom up and leave around half an inch of overhang.
  • Continue doing this everywhere you see joists.
  • With your staple gun, staple the insulation to the cross beams.
  • There will be small spots where you’ll need to cut and fill more insulation to seal in any gaps. Areas like doors and window frames will need the insulation tucked in, and you can do this by using a putty knife to really pack it in place. Just be careful not to pack it in too tightly.
  • In areas where there are chimneys you should install the insulation in loosely. Where you see any light fixtures, make sure to cut a 3 inch hole in the insulation around the them. An important thing to remember is that you should not install insulation close to anything will give off a lot of heat. Objects like a metal chimney can get very hot, and if the insulation is too close to it you could have a serious problem.
  • If you have other electrical items such as TV or internet cables, you should tear off the insulation just enough to place the cables in between.
  • After you have finished the joist cavities, you can install insulation along the whole space of the perpendicular joists and staple in place.

It can be a little uncomfortable installing attic insulation, but after you spend a short time doing it you will have ensured a long time of energy efficiency throughout the different seasons and changes in weather. Now that you have learned how to install attic insulation you are one step closer to being a knowledgeable handyman! But if this doesn’t seem like something you would want to do, why not call Home Painters Toronto for further assistance? Call us NOW at 416-494-9095 or email Brian@HomePaintersToronto.com! We can help you with your attic insulation cost and process.

Brian Young - Home Painters Toronto

From The Owner & Founder


Hello and welcome!

I’m both deeply honoured and flattered you are considering using our services.

Since 1987 when I was at York University simply earning my way through school, I’ve had the privilege to meet and work with thousands of amazing homeowners like yourself.

Besides the birth of my daughter, there is nothing more satisfying than seeing a homeowner’s life change when we have transformed their dream home into a masterpiece. For that reason, we take our jobs very seriously and are committed to our cause.

At Home Painters our mission is to paint homeowners’ dreams, and make your painting experience last a lifetime!
I look forward to hopefully meeting you one day, as it brings me tremendous joy to make homeowner’s dreams come true.