The right improvement starts with the right diagnosis
Solutions based on what your home actually needs
Insulation, air sealing, ventilation, thermal imaging, and attic access improvements each solve different parts of a home performance problem. ComfortGuard determines which tools belong in your plan and the order in which they should be used.
Weatherstripping
Air sealing outlets, doors, and basement ceiling
Doors leak at the edges, not through the middle
Small openings, repeated all over the house
Doors and accessible windows lose conditioned air around their edges long before the glass or the slab is at fault. We assess fit and condition first, because worn hardware and an out of square door are not corrected by sealing alone.
Outlets, switch boxes, door frames and basement ceilings are all paths for air to move between conditioned and unconditioned space. We seal the openings we can reach so the air you have already paid to heat or cool stays where you want it.
-
Exterior doors and accessible windows
-
Thresholds, sweeps and jamb seals
-
Hardware problems identified rather than sealed over
-
Outlet and switch boxes on exterior walls
-
Door frames and accessible penetrations
-
Basement ceiling, where accessible
What is included
Basement ceilings are addressed only where they are readily accessible. A finished or closed ceiling would need to be opened up, which falls outside the scope of this work.
Why the order matters
Inspect for unsafe, wet, contaminated, or specialist conditions → identify accessible leakage pathways → seal appropriate openings → protect intended ventilation → install insulation consistently.
Attic air sealing
Cellulose attic insulation
Insulation is the coat. Air sealing closes the zipper
More material is not the same as better performance
Insulation slows heat movement. Air sealing reduces uncontrolled air movement. Sealing appropriate attic floor openings before adding insulation helps both systems perform together.
Cellulose can be an excellent choice for older attics. The result depends on what is underneath it, how the attic is prepared, whether air leakage paths are addressed, whether ventilation is protected, and whether coverage is consistent.
-
Plumbing and wiring penetrations
-
Open chases and top plates
-
Recessed lights, subject to fixture rating
-
Chimney and flue areas, using approved high-temperature methods
-
Duct and mechanical penetrations
R-value is the industry’s measure of how much a layer slows heat. Higher is more resistance, but only when the layer is even and the openings underneath it have been sealed.
Depth can vary based on attic and installation. Depth alone does not tell you how the attic performs.
Rim joist inspection and air sealing
Attic hatchway upgrades
The gap you cannot see from inside the house
The single largest opening in your ceiling.
The rim joist is where your floor framing meets the foundation, and in older homes it is often left bare behind the basement ceiling. We check accessible bays for air movement, moisture indicators, and whatever material is already there, then seal and insulate where conditions allow.
An attic access is frequently the single largest opening in your ceiling, and it is usually the cheapest one to fix. Depending on the assembly, treatment may include sealing the frame, adding weatherstripping, insulating the hatch itself, or fitting an insulated cover.
-
Accessible rim joist bays only
-
Moisture, staining or rot reported before any material goes in
-
Sealed and insulated where the assembly allows
-
Pull-down stairs, ceiling hatches and knee-wall doors
-
Frame sealing, weatherstripping and insulated covers
-
Fit and operation checked before and after
Not every finding becomes a ComfortGuard job
Inspect for unsafe, wet, contaminated, or specialist conditions → identify accessible leakage pathways → seal appropriate openings → protect intended ventilation → install insulation consistently.