Local research · updated July 2026
Replacement Windows in Baltimore, Maryland
Baltimore is a brick rowhouse city, and that fact shapes almost every window replacement here. Roughly 82.5% of the city's housing was built before 1980 and about 121,000 units predate 1940 — the classic marble-stooped rowhouse with original wood double-hung sashes, often behind a formstone facade, with a median home dating to the late 1940s. In this mixed-humid mid-Atlantic climate the question is rarely just efficiency; it's how to remediate century-old sashes and masonry openings without stripping the character that gives these blocks their value.
Short answer
In Baltimore, a standard replacement window (double-hung, casement or slider) typically costs $585–$3,330 installed. Bay and bow windows run $2,925–$9,360+, and a sliding patio door $1,755–$5,845. Frame material and the glass package decide where a project lands in that range.
Planning ranges built from NREL and BLS cost data, localized to Baltimore with the BEA Regional Price Parity for Baltimore-Columbia-Towson, MD (2024). How we estimate →
82.5%
of Baltimore homes were built before 1980, the era of single-pane and early aluminum windows
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
1948
median year built across Baltimore's 293,631 housing units
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
SHGC ≤ 0.4
the ENERGY STAR v7.0 number that matters most in the North-Central zone
Source: EPA ENERGY STAR v7.0
Window installers in Baltimore
Compare companies serving Baltimore. Request a free, no-obligation quote and we route it to the company or a vetted local installer.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | North Bethesda, MD | Get a quote → |
| 1Champion Replacement Windows of BaltimoreChampion | Rosedale, MD | Get matched → |
| 2Pella Mid-AtlanticPella | Beltsville, MD | Get matched → |
| 3Pella Windows and Doors Showroom of Annapolis, MDPella | Annapolis, MD | Get matched → |
| 4Pella Windows and Doors Showroom of Beltsville, MDPella | Beltsville, MD | Get matched → |
| 5Pella Windows and Doors Showroom of Bethesda, MDPella | Bethesda, MD | Get matched → |
| 6Pella Windows and Doors Showroom of Lutherville-Timonium, MDPella | Timonium, MD | Get matched → |
| 7Pella Windows and Doors Showroom of Vienna, VAPella | Vienna, VA | Get matched → |
| 8Power Home RemodelingPower Home Remodeling | Silver Spring, MD | Get matched → |
| 9Thompson Creek Window Company LanhamThompson Creek | Lanham, MD | Get matched → |
| 10Universal Windows Direct of BaltimoreUniversal Windows Direct | Baltimore, MD | Get matched → |
| 11Window NationWindow Nation | Glen Burnie, MD | Get matched → |
| 12Window World of BaltimoreWindow World | Baltimore, MD | Get matched → |
| 13Window World of Frederick CountyWindow World | Frederick, MD | Get matched → |
| 14Window World of HarfordWindow World | Bel Air, MD | Get matched → |
Renewal by Andersen of the Capital Region
4.8 · 200,000+ reviewsShowrooms in North Bethesda & Fairfax · serving the Baltimore metro
Full-service manufacturer and installer, transferable warranty, local crews. Why it's our Top Pick
Get a quote →Listings compiled from manufacturer dealer locators and public business records. Premier and Sponsored Partners pay for placement and are labeled as such; star ratings shown are reported by the partner, with the source and date beside them. See our advertising disclosure. Contacting a company shares your details with it (or a vetted local installer) so it can reach you about your project.
Are you a window company? Claim your listing to take quote requests from Baltimore homeowners directly.
What drives window decisions in Baltimore
- Original wood double-hung sashes in pre-1940 rowhouses are frequently the starting point — many have painted-shut sashes, failed cords, and single-pane glass, but the masonry openings around them are rarely square, which complicates any swap.
- Baltimore has over 30 local historic districts, and exterior work in them is reviewed by the city's Commission for Historical and Architectural Preservation (CHAP); on street-facing elevations, replacement windows generally must match the proportion, profile, material, and light configuration of the originals.
- The IECC 4A mixed-humid climate brings real freeze-thaw cycling and summer humidity, which stress glazing seals and rot old wood frames — fogged insulated glass and water-damaged sills are common local replacement triggers.
- Because so much of the value is historic, the storm-window-versus-replacement decision is live here: interior or exterior storm windows can be a lower-cost, preservation-friendly path where CHAP review or budget rules out full replacement.
Replacement windows & doors by type in Baltimore
Local cost ranges and North-Central-zone efficiency guidance for each window and door style, specific to Baltimore homes:
Ranges localized to Baltimore's cost level: national planning ranges shifted by the BEA Regional Price Parity for Baltimore-Columbia-Towson, MD (104.5, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Baltimore's climate
Baltimore sits in the ENERGY STAR North-Central zone (IECC zone 4A (mixed, moist), Baltimore City). Under the v7.0 specification, qualifying windows need a U-factor of 0.25 or lower and an SHGC of 0.4 or lower. Mixed climate: good insulation matters most, with a moderate cap on solar gain so summer cooling costs stay in check.
Not sure what these numbers mean? Read our plain-English guide to U-factor and SHGC.
What replacement windows cost here
National installed-cost ranges apply as a baseline, but Baltimore has real local drivers. Old masonry openings that are out of square, deteriorated wood sills, and lath-and-plaster interiors often push jobs toward custom-sized units and more labor than a modern tract home would need. In one of the city's 30-plus historic districts, CHAP review adds both time (approval typically precedes the building permit) and cost, since street-facing windows may need to replicate historic profiles and materials rather than use the cheapest stock vinyl. Mid-Atlantic labor rates sit near or modestly above national averages, and getting accurate quotes usually means having installers measure openings individually rather than pricing off a whole-house count.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in Maryland
The federal window tax credit (25C) ended for projects placed in service after December 31, 2025. If your windows were installed in 2025, you can still claim it on your 2025 return — but for new projects there is no federal window credit. State and utility programs are now the main source of window incentives.
Maryland runs IRA Home Energy Rebate programs through the Maryland Energy Administration; windows can be included in a modeled whole-home efficiency retrofit. Verify current program status before counting on funds.
- EmPOWER Maryland (BGE and other utilities). EmPOWER Maryland utility programs (including BGE in the Baltimore area) fund home energy audits and envelope improvements; window replacement generally qualifies as part of whole-home efficiency work. (Maryland PSC EmPOWER Maryland; BGE program pages)
Maryland adopts the statewide Maryland Building Performance Standards (IECC-based); in Baltimore, historic districts are reviewed by CHAP (the Commission for Historical and Architectural Preservation).
Replacement windows in nearby metros
Not in Baltimore proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Baltimore window replacement FAQ
›Do I need a permit to replace windows in Baltimore?
Generally yes. Baltimore City permits are handled by the Department of Housing & Community Development through its e-Permits system, and window replacement typically requires a building permit (minor like-for-like repairs may be treated differently). If your property is in a designated historic district, the application is also referred to CHAP — the Commission for Historical and Architectural Preservation — and you must obtain its authorization to proceed before the permit can be issued. Confirm your specific situation with DHCD, since requirements depend on the scope of work and your property's location.
›Can I replace windows in a historic Baltimore rowhouse and keep the character?
Yes, and in a CHAP-reviewed historic district you are generally expected to. On elevations easily seen from the street, CHAP guidance calls for replacements that duplicate the proportion, profile, material, and light (pane) configuration of the historic windows; rear or hidden elevations are usually held to a looser standard. In practice that can mean repairing or reproducing wood double-hungs, or choosing units designed to match historic sightlines. Adding interior or exterior storm windows is another common approach that improves performance while preserving original sashes. Check with CHAP early, before ordering product.
›What efficiency numbers should replacement windows hit in Baltimore?
Baltimore sits in the ENERGY STAR North-Central climate zone. For that zone, the current ENERGY STAR version 7.0 residential criteria call for a U-factor of 0.25 or lower and a Solar Heat Gain Coefficient (SHGC) of 0.40 or lower. Meeting those numbers is a reasonable performance target and also lines up with what utility and federal efficiency programs typically expect; verify the exact current thresholds on the ENERGY STAR site before you buy.
›Are there tax credits or incentives for windows in Baltimore?
The federal 25C energy-efficient home improvement credit that covered qualifying windows expired at the end of 2025 (December 31, 2025), so it is no longer available for new projects. Remaining help tends to come from state and utility programs rather than a federal window credit: BGE (Baltimore Gas & Electric) offers rebates through the EmPOWER Maryland efficiency programs, usually tied to a home energy audit and qualifying ENERGY STAR measures, and Maryland has been rolling out IRA-funded Home Energy Rebates. Program details and funding change, so confirm current eligibility and amounts directly with BGE and the Maryland Energy Administration before counting on any incentive.
Sources
- — U.S. Census Bureau, American Community Survey 5-Year Estimates (B25034, B25035)
- — EPA ENERGY STAR Version 7.0 Residential Windows specification
- — DOE/PNNL IECC climate zone assignments by county
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)