Insulation & Air Sealing
From cold rooms and drafty spaces to poorly insulated attics and basements, Nexhome helps homeowners improve comfort through professional insulation and air sealing solutions.
Why it matters
Proper insulation reduces unwanted heat transfer, while air sealing limits drafts and uncontrolled air leakage. Together, they can improve comfort and reduce unnecessary heating and cooling demand.
More consistent indoor temperatures.
Better thermal resistance through walls, ceilings and floors.
Addresses unwanted airflow through gaps.
Reduces unnecessary heating and cooling demand.
Solutions
Six ways we help, organized by the part of the home and the problem you want to fix.
Attic Insulation
Your attic plays an important role in your home’s thermal performance. Proper attic insulation helps reduce heat transfer between your living space and the outdoors, supporting comfort all year.
Explore Attic Insulation
Wall Insulation
Wall insulation reduces heat transfer through exterior walls. The right solution depends on how the home is built, what insulation is already there, and whether you are renovating.
Explore Wall Insulation
Basement & Crawl Space
Basements and crawl spaces can contribute to heat loss, cold floors and uncomfortable indoor conditions. Insulation and air sealing improve them, once any moisture issues are addressed.
Explore Basement & Crawl Space
Garage & Floor Insulation
Rooms above garages and floors over unheated spaces can lose heat and feel cold underfoot. Proper insulation and air sealing improve their comfort.
Explore Garage & Floor Insulation
Spray Foam Insulation
Spray foam expands during installation to fill suitable cavities and reduce air leakage. Different formulations serve different applications.
Explore Spray Foam Insulation
Air Sealing & Draft Reduction
Even well-insulated homes lose conditioned air through gaps and penetrations. Air sealing addresses that unwanted airflow and complements insulation improvements.
Explore Air Sealing & Draft ReductionYour home
Tap an area to see the solution for it.
Often the first place to add insulation, after sealing leaks in the attic floor.
Tap an area to open its page. Every home is different; an assessment shows where yours loses the most.
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Insulation resists heat transfer through building assemblies. Air sealing reduces uncontrolled airflow through gaps. Together, with suitable ventilation and moisture management, they improve comfort and the building envelope.
R-value
Resistance to heat flow. A higher R-value generally means greater thermal resistance.
Gaps, compression and poor coverage reduce real-world performance.
Air leaks and heat moving through framing can undercut insulation.
Wet insulation performs poorly, so moisture control is part of every job. Required levels vary by province.
Insulation and heat pumps
Insulation and air sealing can reduce your home’s heating and cooling load. That makes them a natural companion to a new heat pump, before or alongside the installation.
Equipment is sized to your home’s actual needs, so envelope upgrades are factored into the load calculation rather than guaranteeing a smaller system or a set saving.
How we work
Your comfort concerns: drafts, cold rooms or high bills.
Existing insulation, likely leakage points and moisture.
Appropriate materials and the scope of work.
Qualified installation, coordinated by us, with follow-up.
Incentives
Some insulation and air-sealing projects may qualify for government or utility programs, depending on where you live and your eligibility. Many require an energy assessment before and after the work.
We only share program details once they are verified against the program itself. Ask us during your consultation what applies to your home.
Questions
It depends on your attic. Blown-in cellulose and fiberglass are common for open attic floors; batts suit some situations. Air sealing first matters as much as the material.
No. Blown-in is a way of installing loose-fill insulation. It is used in attics, and dense-packed in some walls.
Cellulose is made largely from recycled paper treated for fire resistance and is denser; fiberglass is lighter and needs more depth for similar performance. Both work well when properly installed.
Insulation sprayed as a liquid that expands to fill a space, insulating and air sealing in one step.
Open-cell is lighter and lets vapour pass; closed-cell is denser, adds rigidity and resists vapour at sufficient thickness. The assembly decides which suits.
Often, by filling closed cavities with dense-pack or blown-in insulation, or adding continuous insulation during re-siding. Not every wall suits the same method.
Rigid foam, spray foam, and mineral wool or fiberglass in suitable assemblies. Moisture problems must be fixed first.
Yes. Insulating and sealing the floor and shared walls helps, while keeping the fire separation intact.
Closing gaps where air leaks in and out of the home, such as around hatches, wiring, pipes, windows and rim joists.
Yes, usually. The leaks are much harder to reach once new insulation covers them.
A measure of resistance to heat flow. Higher is more resistant, but installation quality, air leakage and moisture also affect real performance.
It can reduce how much heating and cooling your home needs. Savings depend on your home and energy prices, so we don’t promise a figure.
Cold rooms, drafts, ice dams, or attic insulation sitting level with the ceiling joists are common signs. A review of your home confirms it.
It can if moisture isn’t managed, for example by covering existing water problems or blocking ventilation. Proper design and air sealing prevent this.
Some government and utility programs include insulation and air sealing, often with an energy assessment required. We only share program details once they are verified.
Whether you’re improving your attic, insulating a basement, addressing drafts, or planning a larger home efficiency upgrade, Nexhome can help you explore the right solution.
