Maryland Windows FAQ: 33 Questions Answered

Window replacement runs $800 to $1,400 per window installed for a ProVia custom vinyl replacement window. That price includes measurement, custom factory manufacture, professional installation, exterior aluminum capping, interior trim, haul-away of the old window, and warranty registration. For a typical 10 to 15 window home, most whole-house projects land between $8,000 and $21,000. Where you fall in that range depends on window count, sizes, styles (a large bay assembly costs more than a standard double-hung), and glass package. See our Maryland window cost guide for the full breakdown by size class.

National figures put a quality replacement window between roughly $600 and $1,300 each, and that lines up with JDH's $800 to $1,400 per window installed for a ProVia custom vinyl unit. The spread comes down to size, style, and glass: a standard double-hung sits at the lower end, a large picture window or a bay assembly at the higher end. The number that matters is what is included. A JDH quote is fixed-price and covers the window, capping, trim, old-window haul-away, and warranty registration, so there is no separate labor or disposal line added later.

Big-box window pricing varies widely because the store is a middleman: it sells the window, then assigns a subcontracted installer whose crew you do not meet until install day. Quoted installed prices commonly land anywhere from a few hundred dollars to well over $1,500 per window depending on brand, size, and the local subcontractor. JDH is not a middleman. We install one brand, ProVia, with our own crews on JDH payroll, at $800 to $1,400 per window installed. You meet your Design Specialist at the quote and the same company stands behind the 5-year workmanship warranty.

For a typical Maryland or Virginia home, expect vinyl double-hung retrofits to run $6,500 to $10,000 for 10 windows installed, fiberglass or composite full-frame replacements $12,000 to $16,500, and ProVia Endure premium vinyl in the $10,000 to $14,000 range. The variation reflects window count, size class, full-frame vs insert install, and grid or grille upgrades. Bay and bow windows add $1,200 to $2,500 each on top.

JDH installs ProVia windows, exclusively. We are a ProVia Platinum contractor, the top tier of ProVia's certification program. We carry one brand on purpose: it lets our crews master a single product, and it means every window on your house carries the same warranty from the same manufacturer. The line we install most across Maryland and Virginia is the ProVia Endure collection in double-hung, bay and bow, casement, and picture configurations.

For most Maryland and Virginia homes, vinyl is the practical answer. ProVia vinyl windows do not rot, warp, or peel, they never need painting, and they hold up to the region's humidity and temperature swings. Wood windows look beautiful but demand ongoing maintenance and are more vulnerable to moisture. JDH installs ProVia vinyl, available with interior wood trim options when you want the wood look inside. See the full vinyl vs wood window comparison for the side-by-side breakdown.

Quality vinyl replacement windows last 30 to 40 years typical in Maryland's climate, with ProVia Endure carrying a Lifetime Limited Transferable warranty on the vinyl unit itself (effectively for the original homeowner's tenure). The most common failure mode is glass-seal failure (fogging between panes), which shows up at 15 to 25 years on budget windows and is covered for 20 years on ProVia's Aeris, Endure, and Aspect lines. Wood windows last 50 to 70 years with diligent painting and maintenance but typically fail earlier in MD without it. Aluminum-clad wood splits the difference. Replacement windows installed correctly with proper flashing usually outlast the underlying wall they're set in.

Yes, often dramatically. The acoustic improvement depends on glass package and what you're replacing. Replacing single-pane windows with ProVia Endure double-pane Low-E reduces exterior noise transmission by roughly 8 to 12 STC points (each 10 STC points doubles perceived loudness reduction). Adding laminated glass (a clear plastic interlayer between two panes) adds another 4 to 8 STC points and is the most effective single upgrade for noise. Triple-pane adds 4 to 6 STC points beyond standard double-pane. JDH's Design Specialist will spec laminated glass on elevations facing roads, flight paths, or noisy neighbors when you flag the concern at the consultation.

JDH's window warranty is two stacked warranties. JDH covers installation workmanship for 5 years from the install completion date: shimming, anchoring, flashing, sealing, exterior caulk, sill pan, water management. ProVia's manufacturer warranty covers the window unit itself: Lifetime Limited Transferable on materials and vinyl (Aeris/Endure/Aspect), 20-year glass seal failure coverage, and Lifetime accidental glass breakage on Aeris/Endure/Aspect for the original homeowner. Both warranties run in parallel. JDH owns the first 5 years of claims regardless of which warranty applies.

Yes, with one important nuance. The base ProVia window warranty (materials, vinyl, workmanship, glass seal failure) transfers once to a subsequent purchaser. The accidental glass breakage benefit on Aeris, Endure, and Aspect is non-transferable: it stays with the original purchaser only. JDH's 5-year workmanship warranty transfers in full to a new homeowner for the remainder of the coverage period, no paperwork, no fee. When listing your home, share the install paperwork and warranty document with your buyer; the home inspector can verify it.

It covers a lot, but there are specific requirements. On Aeris, Endure, and Aspect windows, ProVia covers accidental glass breakage for the lifetime of the original purchaser, free of charge, for any accident not covered by your homeowner's insurance (or within your deductible). Requirements: the glass unit must use ComforTech Warm Edge Super Spacer Glazing (standard on these lines). Exclusions: the ecoLite line is NOT covered for accidental breakage; insulated glass units with internal blinds are excluded; garden windows are excluded; non-single-family structures (apartments, commercial) are excluded; clear-glass units (no Super Spacer) carry only the 10-year seal coverage. JDH files breakage claims on your behalf during the 5-year window.

The most common voiders: aftermarket window film or coatings applied by another party (can void the glass seal warranty); third-party penetrations to the JDH-installed window frame or trim (alarm sensors, custom shutter mounts), though JDH offers a free post-third-party-work inspection to restore coverage; unauthorized modifications or repairs by another contractor; cleaning with abrasives or chemicals not recommended by ProVia. Notably, missed routine maintenance (washing, weatherstripping inspection) does NOT void JDH's workmanship warranty. Acts of God (wind beyond manufacturer rating, hail breaking glass, lightning, tree-strike) are excluded but route to insurance.

20 years on the Aeris, Endure, and Aspect lines. 10 years on the ecoLite line (the budget-tier glass-seal term). Glass seal failure is the most common long-term window issue and shows up as fogging or moisture between the panes of an insulated glass unit. ProVia replaces failed glass units free of charge during the coverage window. The warranty transfers once to a subsequent purchaser. JDH files the seal failure claim on your behalf during the 5-year workmanship window.

Call the JDH office. Jessica Commodore pulls your install file and documents the issue. Send photos or videos to speed the evaluation. Steve Dean, JDH's Production Manager, inspects the window on-site within 2 business days. Steve's evaluation determines the cause: workmanship (shimming, flashing, caulking, exterior seal) is covered under the 5-year workmanship warranty by JDH; material (frame defect, glass seal failure, hardware failure) routes to a ProVia claim filed by JDH on your behalf. Most repairs completed within 7 days of confirmation. If active leaking is occurring, JDH provides temporary mitigation at no charge during the repair-waiting period.

Post-install breakage routes to ProVia's manufacturer warranty, not JDH's workmanship. If your window is an Aeris, Endure, or Aspect with Super Spacer glazing: ProVia's accidental glass breakage clause covers the replacement glass free of charge for the original purchaser. If your window is an ecoLite, or any insulated-blind unit, garden window, or commercial install: not covered by ProVia's breakage clause, routes to your homeowner's insurance. JDH files the ProVia claim on your behalf during the 5-year workmanship window; after year 5, you can file directly or JDH will assist as a courtesy.

JDH handles ProVia warranty registration on your behalf at the time of install. You do not need to take any action. The homeowner-self-registers model does not apply to ProVia in the JDH install flow. If you want a copy of your warranty document for your records, Jessica Commodore can provide one at no charge. When you sell the property, the warranty transfers automatically; share the install paperwork and warranty document with the buyer.

Most Maryland counties do NOT require a building permit for a like-for-like window replacement where the rough opening size is unchanged and the wall framing is not modified. That covers the typical insert-style replacement JDH performs most often. Permits ARE required when: the rough opening size changes (enlarging or shrinking the window), wall framing is modified, the window is in a historic district (Annapolis, Leonardtown, Chesapeake Beach CBCAO), or the window is a load-bearing structural element. JDH handles any required permit as part of the project at no additional charge above the published permit fee, which typically runs $50 to $200 in Maryland.