A few clear signs your home is under-insulated:Rooms that never reach a comfortable temperature, or feel drafty with the HVAC runningHigher-than-expected heating and cooling billsCold floors, walls, or ceilings in winter — and hot upstairs rooms in summerIce dams or heavy icicles at the eaves in winterAn attic where you can see the floor joists above the insulation, or insulation that's thin, matted, or unevenly spreadHere in the DMV (climate zone 4), the U.S. Department of Energy recommends roughly R-49 to R-60 in the attic — many older homes have far less. The most reliable way to know is a home energy audit, where we measure your current levels and show you exactly where you're losing energy.

Uneven temperatures usually come down to where your home is losing — or unevenly holding — conditioned air. Common culprits:Gaps or thin spots in the insulation, especially in the attic and over additions, bonus rooms, or rooms above the garageAir leaks around recessed lights, attic hatches, wiring, and top platesLong or leaky duct runs that lose air before it reaches far roomsSingle-pane or aging windowsAdding insulation and air sealing the leaks together is what evens out those room-to-room swings — insulation alone won't fix it if air is still leaking.

They solve two different problems and work best together:Insulation slows heat moving through your walls, floors, and ceiling — a blanket that resists conductive heat transfer.Air sealing stops the actual leakage of air through gaps and cracks — around the attic hatch, recessed lights, top plates, rim joists, and plumbing penetrations.You can have plenty of insulation and still be uncomfortable if air is leaking around it — moving air drags an insulation's R-value down. That's why we typically air seal first, then insulate, so the insulation can actually do its job.

Each has a place; the right choice depends on the area, your budget, and your goals:Fiberglass (batts or blown-in): most budget-friendly, roughly R-2.9–3.8 per inch. Great value in open attics, but it doesn't stop air movement on its own.Cellulose (dense-packed recycled fiber): about R-3.2–3.8 per inch, and it fills around obstructions and resists air movement better than fiberglass.Spray foam (open- or closed-cell): the highest performance — closed-cell is around R-6.5 per inch and air-seals and insulates in one step. Ideal for rim joists, cathedral ceilings, and tricky cavities, at a higher cost.On most jobs we recommend a mix — for example, air sealing plus blown cellulose or fiberglass in the attic, and spray foam where both air sealing and high R-value matter most.

It's not strictly required, but it's usually worth it. A home energy audit — often with a blower-door test and thermal imaging — shows exactly where your home is losing energy, so we insulate the spots that actually move the needle instead of guessing. It also documents your home's baseline, which is frequently what qualifies you for utility rebates and incentives. If you have an obvious deficit like a bare attic, we can go straight to the work — but for most homes the audit pays for itself in better results and available rebates.

Yes — it's one of the most effective fixes. Ice dams form when heat escaping into your attic melts the snow on your roof; that meltwater runs to the cold eaves and refreezes, building a dam that backs water up under your shingles. By air sealing the leaks and adding attic insulation, you keep the attic close to the outside temperature, so the roof stays cold and snow melts evenly instead of refreezing at the edges. Paired with proper attic ventilation, insulation + air sealing is the long-term solution to recurring ice dams.

For most homes, not very. A typical attic insulation and air-sealing job is completed in a single day. Our crew works primarily in the attic or the targeted area, lays down protection over your floors and belongings, and cleans up before leaving — you can stay home and go about your day. If we're dense-packing existing walls, that involves small access holes that we patch when we're done. There's no major demolition or construction for a standard insulation retrofit.