Guides

Window replacement guides

Plain-spoken guides for homeowners researching window replacement in DC, Maryland, and Virginia — written by someone who spent 2.5 years inside the Renewal by Andersen sales script.

By Anthony Moorman Former Renewal by Andersen rep · 12+ years in residential real estate.

Guides for first-timers and decision-makers

Replacement windows: a complete buyer's guide (2026)

A complete guide to replacement windows for DC, MD, and VA homeowners: types, materials, energy ratings, real costs, install, and how to vet a contractor.

Energy-efficient windows: a complete homeowner's guide

Energy-efficient windows explained for DC, MD, and VA homes: U-factor, SHGC, Low-E, argon, double vs triple pane, the NFRC label, and ENERGY STAR for climate zone 4.

First-time window replacement: an honest buyer's guide

A first-time window replacement guide for DC, MD, and VA: what to budget, how to pick a type, how to handle the in-home sales pitch, and the mistakes first-timers make most.

Window replacement contractor: how to choose one (2026)

Vet a window replacement contractor like an insider: licensing to verify, questions to ask, red flags to walk on, and how to compare three quotes apples-to-apples.

Window types: how to choose the right one for your home

A room-by-room and home-style guide to choosing the right window type in DC, MD, and VA, mapping each space to the 8 window types OneStep installs.

Window installation: what to expect, start to finish

Your window installation guide for DC, MD, and VA: the full timeline, how to prep, what the crew does per opening, permits, and the walk-through.

Window materials: vinyl, fiberglass, wood, composite

Compare window materials for DC, MD, and VA homes: vinyl, fiberglass, Fibrex-style composite, and wood head to head on cost, lifespan, maintenance, and energy.