Expert Written From Industry Insiders
Codes, climate zones, and real prices all change at the state line. Get the answers that actually apply where you live.
Select your state
Four subjects, one standard: real numbers, no hype, and the trade-offs named out loud.
Replacement Windows Costs, materials, energy ratings, brands — and how to buy without getting talked into the wrong thing.
Doors Entry, patio, and storm doors — security, efficiency, and what a quality install looks like.
Siding Vinyl and fiber cement — real costs, honest comparisons, and whether it belongs in the same project as your windows.
Sunrooms & Four-Season Rooms Three-season vs four-season, kits vs custom, and what glass rooms really cost to build and heat. Who's writing this
Marc Hanley Lead author, Windows · with the Windows Resource pros Meet the pros → Every guide is written in the first person by someone who measures, quotes, and sells this work for a living, then fact-checked against NFRC, ENERGY STAR, and the local building code — with sources cited at the bottom of the page. We go deep in one state at a time, so the local details (permits, egress rules, climate-zone specs) are real, not generic filler.
"My job is to tell you the truth — even when the truth is 'keep the windows you've got.'"
Per-window and whole-house ranges — and why the same window costs 3× more from one company than another.
Read the guide →
U-factor, SHGC, and the NFRC label — the two numbers that matter and the three that mostly don't.
Read the guide →
Fiberglass lasts longer and holds its seal; vinyl costs less and insulates well. How to actually decide.
Read the guide →
Not every drafty or foggy window needs replacing. When a repair is the smart money — and when it isn't.
Read the guide →State by state
Window advice changes with the climate zone, the building code, and the local market — so instead of thin pages for all 50 states, we build one state at a time, properly.
Not your state yet? The national guides above apply anywhere — the state pages add the local codes, costs, and consults as each state goes live.
Free, no pitch, no obligation — a working pro reads your situation and tells you what they'd do, even when the answer is a $40 repair.
Ask a Window ProHow this site stays free: if you ask for install help, the pro who takes your project may compensate us. The guides never depend on it.
