Air Sealing and Insulation

Furnace combustion air in a tight house: which furnaces air sealing can starve, why backdrafting is the real risk, and the test to book before and after.

A duct leakage test puts a number on how leaky your ducts are. Learn total vs outside leakage, CFM25, who runs it, and how to read the report before sealing.

Insulate ducts in attic and crawl space runs the right way: seal first, wrap to the code baseline, and avoid condensation. Keep heated and cooled air inside.

Duct sealing mastic vs foil tape, joint by joint: which one lasts, what the UL 181 label means, and why cloth duct tape fails. Seal leaky ducts right once.

Caulk around windows exterior joints the right way: which gaps to seal, which drainage paths to leave open, and how to pick a sealant that stays put.

Energy efficient exterior door, fiberglass vs steel vs wood: compare the rating, glass, seals and upkeep of the exact door, so the one you buy stays tight.

Full frame vs insert window replacement: what each job removes, what it leaves behind, and how to check your frames before you choose the quote.

Window replacement quote: what to look for so three different formats become one fair comparison. Products, install scope, warranties and your rights.

Stop summer heat and winter drips: how skylight energy efficiency works, what to check on the label, and what you can fix from the attic.

Basement window replacement energy guide: when a new window helps, when the rim joist and walls matter more, and what to check first.

A sliding glass door drafty fix starts at the right joint: the lock, the rollers, the pile seals or the frame. Find yours and stop the cold air in order.

Low-E glass explained in plain terms: how the coating works, which type suits your climate, and the cases where it blocks winter sun or daylight you want.