Window Replacement in Naples, Maine

Census estimates count about 3,360 housing units in Naples, with a median year built of 1988, which makes the stock younger than much of Cumberland County. Only about 4 percent predate 1940 and roughly 15 percent predate 1960. About 20 percent went up between 1960 and 1979, about a third between 1980 and 1999, and about 32 percent in 2000 or later. That matches the town's own history: population grew 91 percent between 1970 and 1980 as Naples became a bedroom community for Greater Portland, and new home approvals climbed again from 2021 to 2023. Roughly 81 percent of units are single-family detached, and about 88 percent of occupied homes are owner-occupied. Around 1,280 units are held for seasonal use, many of them along Long Lake, Brandy Pond and the Sebago shore. A few Federal-period farmhouses, such as the 1796 Manor House on Route 302, survive among them.

The Naples Causeway on Route 302, between Long Lake and Brandy Pond, is the center of town life, with marinas, seaplane rides and the Songo River Queen paddleboat. The Songo River links Brandy Pond to Sebago Lake through Songo Lock, the last surviving lock of the Cumberland and Oxford Canal and a National Register site. Also listed are the 1857 Union Church, Greek Revival with Gothic touches, the 1796 Manor House and the 1809 Sam Perley Farm, both Federal-period. The Bay of Naples Inn, designed by John Calvin Stevens and facing the White Mountains, stood at the south end of Long Lake until it was razed in 1964.

Permits go through the Naples Planning, Code Enforcement and Building Inspections office at 15 Village Green Lane, open Monday through Thursday, with a minimum fee of $50 per permit. The town requires permits for new buildings and structural alterations, and says its list is not exhaustive, so plan on a permit for any new or replacement deck and check with the office before re-siding or re-roofing. Land within 250 feet of a great pond or river falls under Maine shoreland zoning, and Naples uses a separate Shoreland Zoning building permit application. There is no local historic district; the 2026 comprehensive plan recommends drafting design guidelines for the Village District.

A new window is only as good as the way it is set into the wall. Replacement windows go in either as inserts inside the existing frame or as full-frame units after the old frame comes out; the right choice depends on the condition of the frame, the trim you want to keep, and the siding around it. The site lists vinyl replacement windows and wood or clad units from Andersen, Marvin, Pella and Integrity, in double-hung, casement, picture, bay, sliding and awning styles.

• Each opening is measured and checked for rot in the sill, jambs and framing.
• Old sashes or whole frames come out; damaged wood is repaired before the new unit goes in.
• Units are set level, plumb and square, shimmed, and fastened as the manufacturer requires.
• Low-expansion foam and backer rod seal the gap without bowing the frame.
• Flashing, exterior trim or capping and interior casing are finished so the opening sheds water.

• Fog or condensation between the panes of insulated glass
• Sashes that stick, will not stay up, or let in drafts
• Soft or rotted sills and frames
• Single-pane glass or storm windows you take on and off every year
• Frost or ice on the inside of the glass in winter

• Number of windows, their sizes, and any custom shapes
• Vinyl versus wood or clad units, and the brand and series
• Insert versus full-frame replacement
• Glass package and grille options
• Interior and exterior trim work, and whether siding is open around the opening

Every job is priced from a free on-site visit. Typical ranges for the trade are on our window replacement page, and the details of this service are on the window replacement overview.

For a deeper walkthrough of materials, code details and photos, see our full Window Replacement: U-Factor, ENERGY STAR, and Full-Frame vs. Insert in Maine guide.

Back to the Naples exterior services overview, or see every town on our service areas page.