Window renovation and maintenance work on brick residential building facade

DC Window Replacement · Washington, DC

Residential & Commercial Window Repair in Washington That Buys Time Before Replacement

Residential and commercial window repair in Washington fixes drafty sashes, cracked glass, and rotted frames without committing you to a full replacement. DC Window Replacement handles same-day window repair for homeowners and business owners across the District, plus emergency glass board-up service when a pane fails overnight. If you're weighing window repair versus replacement - especially on an older rowhouse with wood sashes still worth saving - we'll give you a straight answer on-site, not a sales pitch toward whichever job pays more. Rowhouse owners and building managers alike call us when one bad window can't wait for a full renovation to get scheduled.

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What we handle

  • Same-day repairHomeowners and business owners across the District
  • Emergency board-upGlass board-up service when a pane fails overnight
  • Repair or replaceA straight answer on-site, not a sales pitch
About Our DC Window Repair Work

Built for Historic DC Homes and Busy Storefronts Alike

Whether you're patching a drafty sash in a Capitol Hill rowhouse or fixing a cracked storefront pane in Adams Morgan, Residential & Commercial Window Repair in Washington starts with the same basics: a licensed and insured window contractor, a free on-site estimate before you commit to anything, and 36 years of showing up in this city's rowhouses and offices.

  • Licensed and insured window contractor, 36 years working in DC
  • Free on-site estimate before any repair is scheduled
  • Warranty on parts and labor for the work performed
  • EPA lead-safe certified crews for pre-1978 window and frame work
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Red brick building with white windows and black shutters featuring classic architecture

Why Washington's Rowhouses Change the Repair Job

A window repair in Washington isn't the same job as one in a suburban subdivision, because so much of the district's housing stock predates modern building codes. Rowhouses in Capitol Hill, Georgetown, and Petworth were built with wood sash windows sized to openings that no big-box store stocks off the shelf, which means custom size windows and matching sash profiles come up constantly here, not as an exception.

Historic District Approval Adds a Step Most Cities Skip

Yes, a large share of DC's rowhouse blocks fall under historic district review, and that changes what a repair can look like before it changes what it costs. Swapping a rotted window frame for vinyl in an HPRB-regulated block usually isn't allowed on the street-facing side, so wood repair and matched replacement parts stay the default. DC Window Replacement builds that review into the plan up front rather than surprising a homeowner mid-job.

Older Housing Stock Fails in Predictable Ways

Original single-pane sashes in pre-war DC homes tend to show the same problems: swollen wood from humid summers, broken sash cords, and glazing putty that's dried out and cracked after decades of freeze-thaw cycles. Recognizing that pattern speeds up diagnosis on any given window repair in Washington, since the failure is rarely random damage but wear that's specific to the building era.

Weather Timing Matters More in a Humid, Four-Season City

DC's summer humidity and winter cold snaps both stress old wood and seals, which is why drafty windows often get worse right when heating bills climb. Scheduling repair before the first hard freeze protects the house rather than the calendar.

Coverage Extends Beyond the District Itself

Homeowners near the Maryland line sometimes ask whether the same crew handles both sides of the border; window repair in Baltimore follows a similar historic-housing pattern, and the district and its close-in suburbs are served together under one scheduling approach.

Window Repairs We Handle

The Repairs We Handle on DC Homes, One Window at a Time

DC Window Replacement fixes the specific problem in front of us, not a one-size package. Whether it's a single cracked pane in a Capitol Hill rowhouse or a whole run of drafty double hung windows in a Cleveland Park colonial, the scope of work matches what your house actually needs. Here's what that looks like in practice.

Glass Replacement and Foggy Pane Fixes

Cloudy or fogged glass usually means the seal on an insulated unit has failed, and window glass replacement solves it without pulling the whole frame. We handle foggy glass repair and double-pane glass replacement for standard and custom size windows alike, matching the glass spec so the new pane performs the same as the rest of the house.

Foggy double-pane glass being replaced in a Washington DC rowhouse window

Sash Repair and Rotted Frame Rebuilds

A sticking or rattling sash is often a sign of worn cords, warped wood, or a rotted window frame underneath the paint. Sash repair and window frame repair bring the original opening back to square, and wood window restoration lets historic rowhouses keep their original sash rather than replacing them outright.

Storm Windows and Screen Repair

Loose or damaged storm windows let cold air past even when the primary window is sound. We repair storm window frames and glazing, plus window screen repair for torn or bent screens, so the outer layer of protection actually does its job through a DC winter.

Weatherstripping and Hardware Fixes

Drafty windows are frequently a hardware problem, not a glass problem. Weatherstripping replacement seals the gaps around the sash, and window hardware repair addresses locks, cranks, and balances that have worn out or been painted shut over the years.

Vinyl and Aluminum Frame Repair

Newer vinyl and aluminum-framed windows fail differently than wood ones. Vinyl window repair covers cracked frames and failed operators, while aluminum window frame repair addresses corrosion and misaligned tracks common in mid-century additions and back-of-house installations.

Not sure which repair your window needs? A specialist will look at the opening and quote the work that fits it.

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Repair Gallery · Washington, DC

An Urgent Crack or a Planned Winter Project?

A cracked pane after a storm and a rowhouse full of drafty, single-pane sashes call for two different responses, not one generic visit. If glass is broken or a frame won't lock, you need same-day window repair or an emergency glass board-up service to secure the opening before weather, pests, or a break-in become the next problem. If instead you're staring down winter heating bills and a house full of original 1920s sashes that rattle in the wind, the question is different: window repair versus replacement, and which one actually solves the drafts without stripping the house of its character.

DC Window Replacement treats these as separate conversations from the first call. A storefront pane shattered overnight gets boarded and scheduled fast, with no runaround about scope. A rowhouse full of tired wood sashes gets an honest look at what sash repair, new weatherstripping, or a storm window addition can fix versus what genuinely needs full replacement glass or a rebuilt frame. That distinction matters in a city where historic district rules can slow down a replacement decision, so knowing early whether repair will hold you over is worth real money and real time.

Professional window inspector examining damaged residential window with flashlight

Same-day fix or full project

Broken glass gets secured first. Drafty original sashes get an honest repair-versus-replacement answer.

What we look at first

Either way, the starting point is the same: what's actually broken, what it's costing you in comfort or risk, and what a fair fix looks like before any bigger commitment gets made. That's the conversation this page exists to set up, whether you're booking a same-day fix or planning a full window repair project in Washington before the cold sets in.

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Boarded storefront with broken windows on urban downtown street

Emergency board-up

Elegant interior room with large wooden-framed windows overlooking ivy-covered brick building

Sash repair

Glass installation technician working on high-rise windows with DC Capitol building in background

Replacement glass

Historic red brick townhouse with white-trimmed windows and dark blue door in winter

Storm window addition

Window Repair · Washington, DC

What Actually Happens When You Call for Window Repair

A trained window repair contractor starts by diagnosing the actual failure, not just quoting a replacement. A cracked pane, a rotted sash, or a foggy insulated unit each call for a different fix, and DC Window Replacement walks rowhouse and condo owners through what's salvageable before recommending a full swap. Residential and commercial window repair in Washington covers everything from a single broken pane in a Capitol Hill parlor window to a bank of storefront glass downtown.

Glass Damage: Broken, Cracked, or Foggy

Broken window repair means removing shattered or cracked glass and setting a new pane sized to the existing frame, often the same day for a single unit. Foggy glass repair addresses a different problem: moisture trapped between panes in a double-pane unit, which signals a failed seal. Window glass replacement in that case means swapping the whole insulated glass unit, not just wiping the inside of the pane, since a broken seal can't be resealed.

Sash, Frame, and Hardware Fixes

Sash repair fixes the moving part of a double-hung window that's stuck, rattling, or won't stay up without a prop. Window frame repair goes further, addressing rotted wood, cracked vinyl, or a bent aluminum frame that's letting water or air past the glass entirely. Window fixing at this level often includes replacing balances, locks, or cranks so the sash operates smoothly again without needing a full unit replacement.

Sealing Out Drafts

Weatherstripping replacement is often the fastest fix for a drafty window that otherwise still works fine. Old, compressed, or missing weatherstripping is a common reason heating bills climb in older DC homes with original wood sashes. Swapping it out restores the seal around the sash without touching the glass or frame at all.

Homes and Businesses, One Standard

Window repair services for homes and businesses follow the same diagnostic approach whether the job is a single rowhouse sash or a commercial storefront system. A commercial window repair company handling office or retail glass has to work around business hours and larger pane sizes, but the underlying fixes, glass, seals, hardware, frame, stay the same across both settings.

The DC Window Replacement 6-Step Window Repair Process

DC Window Replacement follows the same six-step sequence on every residential and commercial window repair in Washington, so you know what's happening at each stage and can hold us to it.

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DC Window Repair technician installing window screens in residential apartment
Our 6-Step Repair Process

Six checkpoints, every job

  1. 01

    Step 1: Site Visit and Diagnosis

    A technician inspects the sash, frame, and glass in person to identify the actual cause of the problem, whether that's a rotted frame, failed seal, or broken hardware, before quoting anything.

  2. 02

    Step 2: Written, Itemized Estimate

    You get a free on-site estimate that breaks out labor, glass, and any custom parts separately, so you can see exactly what you're paying for and compare it against other quotes.

  3. 03

    Step 3: Material Ordering and Matching

    Glass, sash components, and hardware get ordered to match your existing window's dimensions and profile, including custom sizing for older or non-standard rowhouse openings.

  4. 04

    Step 4: Historic District Check When Applicable

    If your property sits in a historic district, we confirm what HPRB rules apply to the repair before ordering materials, since sash profile and glazing choices can affect approval.

  5. 05

    Step 5: the Repair Itself

    Crews remove the damaged component, prep the opening, install the new glass, sash, or frame section, and reseal and weatherproof the joint so it performs like the rest of the window.

  6. 06

    Step 6: Final Inspection and Cleanup

    Before we leave, we test the sash operation, check the seal, clear debris, and walk you through what was done and what the warranty on parts and labor covers.

That order doesn't change based on job size. A single cracked pane and a full sash rebuild both move through the same checkpoints, which is how we keep the work consistent across Washington's older housing stock.

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Materials, Measurements & Craftsmanship

The Materials and Measurements Behind a Lasting Repair

A window repair holds up only if the person doing it understands why the original piece failed, not just how to swap it out. That means checking glass makeup, frame condition, and drainage before touching a single sash.

Craftsman measuring wooden window frame with tape measure and documentation

Why Does Glass Turn Foggy or Cloudy Between Panes?

Condensation between window panes almost always means the seal on an insulated glass unit has broken, letting moist air in where a dry gas gap used to be. Once that happens, wiping the glass does nothing - the unit itself needs replacing. Many DC rowhomes built or updated in past decades carry insulated glass units with low-E glass coatings, and matching that coating on a replacement pane keeps energy performance consistent rather than creating one mismatched, drafty section.

What Makes a Sash or Frame Worth Saving Versus Replacing?

A sash is worth saving if the rot is surface-level and the wood core underneath is still solid; a soft, crumbling frame usually isn't. DC Window Replacement checks moisture penetration with a probe before recommending a full sash swap over a targeted wood-epoxy repair, since historic sashes in older rowhouses often respond better to careful patching than full removal.

Why Do Weep Holes Matter More Than Most Homeowners Realize?

Window weep holes exist to drain water that collects in the frame track, and when they're painted shut or clogged with debris, that water backs up and rots the sill instead of draining outside. Clearing and, if needed, re-drilling these openings is a small step that prevents a much larger repair down the road.

Does Older Window Work Need City Permits or Approval?

Yes, in-kind repairs to existing sashes typically don't trigger new permitting, but any change to size, material, or visible profile in a historic district needs sign-off first. Confirming that distinction before ordering parts keeps a straightforward repair from turning into a compliance headache.

Have a foggy pane, a soft sill, or a sash you are not sure about? A measured on-site assessment settles it.

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What Separates a Reliable Window Repair Contractor From the Rest

A trustworthy contractor for residential and commercial window repair in Washington proves it before you sign anything, not after. That means real credentials, a written scope, and a crew that has actually worked on rowhouses like yours.

Professional window restoration specialist applying glazing compound to historic window frame

Does the Company Carry Proper Licensing and Insurance?

Yes - ask for a copy of the DC business license and current liability insurance before scheduling anything. A contractor should hand these over without hesitation. If sash repair or frame work disturbs old paint, confirm the crew follows EPA lead-safe practices, since many pre-1978 DC homes require it by law.

Do They Understand Historic District Approval?

A contractor familiar with HPRB rules can tell you upfront whether your block requires historic district approval for sash profile, muntin pattern, or glass type changes. DC Window Replacement has worked in these districts long enough to know which repairs need a permit and which don't, so you're not blindsided mid-project.

Is the Estimate Itemized and Specific?

A fair quote breaks out labor, glass, hardware, and any custom size windows or wood restoration work line by line. Vague lump-sum numbers are the biggest red flag in this market - ask what happens if hidden rot is found once the sash is opened up.

Can They Show Past Work on Similar Homes?

Photos of finished sash repair, weatherstripping, or storm window jobs on comparable DC properties tell you more than a sales pitch. Ask for references from recent local customers and call at least one before committing to a multi-thousand-dollar repair or replacement decision.

Warranty and Follow-Up Terms

Get the warranty on parts and labor in writing, including what's covered if a repaired seal fails or a sash sticks again after a season of DC humidity.

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Documentation first

Proof You Can Check Before You Sign Anything

Ask for the paperwork first, not last. DC Window Replacement carries current DC business license and insurance documentation, and any licensed and insured window contractor working on a rowhouse or condo in the District should hand these over without hesitation, before a tool touches your sash or frame. If a company hedges on showing proof of coverage, treat that as a red flag, not an oversight.

  • When we inspect a job for residential and commercial window repair in Washington, we document what we find, rotted sill, failed seal, cracked pane, before we quote a fix, so the estimate matches the actual damage rather than a guess made from the sidewalk. That free on-site estimate is where you should ask to see recent photographs of finished work on homes similar to yours, and where you can request references from past local customers who had comparable repairs done.

  • Warranty terms belong in writing, not in a verbal promise. Ask what the warranty on parts and labor actually covers, how long it runs, and whether it transfers if you sell the house. If lead paint is a possibility, given the age of housing stock across the city, confirm the crew doing the work is EPA lead-safe certified; this matters for pre-1978 construction and it's a fair thing to ask about directly.

  • Two more items worth pinning down before you commit: what response time you can expect if a window fails during a storm or a break-in, and what turnaround time for window parts looks like when a custom-size sash or an obsolete hardware piece has to be sourced rather than pulled off a shelf. A contractor who answers both plainly, with specifics instead of vague reassurance, is one worth trusting with the job.

Licensed and insured. Documentation available on request at the on-site visit.

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Quality Check

Signs the Job Was Done Right and Built to Last

A properly finished job looks like nothing was ever wrong: no visible gaps at the sash, no smeared caulk lines, and the sash glides open and closed without sticking or rattling. That's the bar DC Window Replacement holds itself to whether the work is a single-pane fix in a rowhouse or a multi-unit window repair job for a Washington business.

Test the Fit Before the Crew Leaves

Open and close every repaired window several times while the technician is still on site. Check that locks engage cleanly, weatherstripping sits flush against the frame, and there's no cold draft along the edges when you run a hand around the perimeter.

What the Warranty Should Spell Out

A written warranty names what's covered - glass seal failure, hardware defects, workmanship - and for how long, in plain language you can hold the contractor to later. If the paperwork is vague on parts versus labor, ask before signing.

How Quickly Problems Get Answered

Same-Day and Emergency Situations

Response time for emergency window repair matters most when glass is broken or a frame won't close and seal against weather. Ask upfront how the company handles after-hours calls and what counts as urgent.

When a Part Has to Be Ordered

Turnaround time for window parts varies by material - a custom sash or a historic-profile piece takes longer than stock hardware. A reliable contractor tells you the realistic wait before work starts, not after.

A Year Later, What Should Still Hold

Come next winter, the seal should still be tight, the glass free of new fogging, and hardware operating the same as the day it was installed. If anything's drifted, that's exactly what the warranty conversation up front was for.

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Person inspecting window frame with DC cityscape view outside
Service Area

Areas DC Window Replacement Serves

DC Window Replacement serves Washington, DC and the surrounding area.

Based in

Washington, DC

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Frequently Asked Questions

Questions Washington Homeowners Ask Before Booking Window Repair

Residential & commercial window repair across Washington, DC. Open a question to read the full answer.

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How Far Ahead Should I Schedule Window Repair in Washington Before Winter Weather Hits?

Call as soon as a draft, a foggy pane, or a sticking sash shows up, because fall slots across DC's rowhouse blocks fill quickly once temperatures start dropping. Lead times stretch when a job calls for custom size windows cut to match an older opening, or when a historic district review adds a step before work starts. Straightforward window glass repair on a standard-size unit moves faster than a full frame rebuild. Calling early leaves room to compare a free estimate against a renovation timeline instead of scrambling once the cold arrives.

What Factors Affect the Cost of Repairing a Broken or Foggy Window in Washington?

Price moves with the size and shape of the glass, whether the frame is wood or vinyl, and how much of the surrounding sash needs attention. A single-pane crack calls for simple window glass replacement, while condensation trapped between panes points to a failed seal and a full insulated-unit swap instead. A rotted window frame, a custom size window, or second-story access that needs ladders or scaffolding all add labor time. A fair, itemized estimate separates glass, hardware, and labor into their own line items so the number makes sense at a glance.

How Can I Verify a Washington Window Repair Company Is Licensed and Insured?

Ask to see the DC business license and proof of insurance before a technician steps onto the property, and a legitimate contractor hands both over without pushback. For rowhomes built before 1978, ask about EPA lead-safe certification too, since disturbing old paint on a sash or frame falls under federal rules. Reviews mentioning historic district projects, along with references from past local customers, fill out the rest of the picture. A licensed and insured contractor with nothing to hide proves it on request, not after the fact.

Window Replacement DC · Washington, DC

Washington, DC · Window Repair

Frequently Asked Questions

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What Should I Do to Prepare My Home or Office Before Window Repair Technicians Arrive?

Clear the sill, sash tracks, and floor space around each window ahead of time so the crew works without pausing to move furniture first. Pull blinds, curtains, and fragile items off nearby surfaces, and keep pets away from the open work area. Decide ahead of the visit between vinyl vs wood windows or matching an original profile for HPRB purposes, so the crew starts working instead of waiting on a choice. A quick walk-through with the technician at the start pins down which windows are in scope and their current condition.

What Happens to My Window Repair Appointment If There's a Storm or Scheduling Delay?

Exterior glass sealing and weatherstripping replacement need dry conditions, so a storm typically pushes the appointment to the next open slot rather than risking a weak seal. Interior sash repair and hardware fixes often proceed regardless of the weather outside. A contractor worth hiring calls ahead the moment a reschedule becomes necessary and works out a new time quickly, so a broken window doesn't sit boarded or drafty any longer than it has to.

Which Washington Neighborhoods and Suburbs Does DC Window Replacement Service for Window Repairs?

DC Window Replacement covers the District broadly, from Capitol Hill and Georgetown rowhomes to Petworth, Dupont Circle, and the blocks around them, plus nearby commercial buildings. Decades of work across this market build familiarity with the mix of building ages and window styles found here, including the double hung windows and original wood sash common in older sections of the city. For an address near the edge of the usual footprint, ask about coverage directly when requesting a free estimate.

Frequently Asked Questions

Residential & commercial window repair in Washington, from Window Replacement DC.

(202) 540-0999

What Does a Properly Repaired Window Look Like Once the Job Is Complete?

A properly repaired window opens, closes, and locks smoothly, with no sticking, gaps, or rattling anywhere in the frame. The glass sits clear with no fogging between panes, weatherstripping sits snug against the sash without visible daylight around the edges, and any storm windows seat cleanly without forcing. Run the window through its full motion and check the frame corners for a tight, even seal before the crew packs up. Anything that feels off gets raised on the spot, not after the technicians have already left.

How Many Hours Does It Usually Take to Repair a Residential or Commercial Window?

Duration tracks with scope: a single sash repair or glass swap on one window is often a same-day job, while frame replacement or multiple units across a home or building stretches longer. A rotted window frame or a custom size window replacement adds time compared with a straightforward pane repair. Access plays a role too, since second-floor or storefront glass takes longer to stage safely than a ground-level opening. Get a time estimate tied to the actual job at booking, since a one-window fix and a whole-house project don't run on the same clock.

Free On-Site Estimate

Get Your Windows Fixed Before Winter Sets In

Drafty windows and rotted frames don't get better on their own, and waiting until the first cold snap only narrows your options. Whether you need same-day window repair on a cracked pane or want a straight answer on window repair versus replacement for a historic rowhouse sash, DC Window Replacement can look at the job and give you a free estimate with no pressure attached.

Call (202) 540-0999 to schedule a free on-site estimate. If it's after hours and glass is out, ask about emergency glass board-up service to secure the opening until a technician arrives.

Book a free estimate (202) 540-0999
Window repair technician measuring frame for Capitol Window Repair service

After-hours glass out?

Ask about emergency glass board-up service to secure the opening until a technician arrives.

Window Replacement DC

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Residential & Commercial Window Repair in Washington

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