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Post-Construction Window Cleaning

Three generations of experience
Friendly, reliable service
Residential, commercial, and cottage work
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The Last Job Before the Building Looks Finished

New glass is the first thing anyone notices at a final walkthrough, and it is usually the dirtiest surface on the property when the trades pack up.
Construction leaves a specific mix behind: fine drywall and masonry dust across every pane, manufacturer labels that have been baking in the sun for months, paint spatter, silicone smears at the frame, tape adhesive, and stucco or mortar splash on ground-floor units.
None of that comes off the way ordinary window dirt does, and the wrong tool on new glass leaves permanent damage. Next Gen Window Cleaning handles post-construction glass for builders, contractors, property managers and homeowners across the Niagara Region.
Why builders call us for the final clean
Residue assessed before anything touches the glass
Techniques matched to what is actually on the pane
Frames, tracks and sills cleared, not just the glass
Scheduling that works around trades and occupancy dates
What's Included
Interior and exterior glass, scope depending
Label, sticker and adhesive removal
Paint, silicone and sealant residue
Frame, track and sill detailing
Final inspection before we leave site

Built for New Builds, Renovations and Final Cleans

This is a different job from routine window cleaning. Routine cleaning removes dirt and water spotting from glass that is already in good condition. Post-construction cleaning removes bonded material from glass that has never been cleaned and can still be damaged.

The service fits:

  • New home construction and custom builds
  • Subdivisions and residential developments
  • Home additions, renovations and replacement window projects
  • New commercial buildings and fit-outs
  • Retail, restaurant and storefront build-outs
  • Multi-unit and condo turnovers
  • Contractor final cleans before handover
  • Property turnovers and pre-occupancy walkthroughs

Why Post-Construction Glass Cleaning Requires Experience

New glass may look durable, but construction residue can create a real cleaning challenge.

Small particles of dust, debris, adhesive, paint or other materials can remain bonded to the surface. If someone uses an inappropriate scraper, abrasive material or aggressive cleaning technique, the glass may be scratched.

That is why post-construction cleaning isn't simply about making the windows look clean.

It's about knowing what is on the glass, how it should be removed, and which cleaning method is appropriate for the surface.

Next Gen Window Cleaning brings years of window cleaning experience to construction and renovation projects, with a focus on careful preparation, proper techniques and a clean final result.

Why New Glass Scratches So Easily

This is the part that costs people money.

Construction residue is not soft. Mortar splash, silicone, dried paint and metal shavings from installation all sit hard on the surface. When someone attacks that with a dry blade, an abrasive pad or a scouring product, the residue gets dragged across the pane and the glass carries the marks permanently.

There is a second risk that most people have never heard of. Some tempered glass carries surface imperfections from the manufacturing process, called fabricating debris, that can leave scratch marks even under otherwise correct scraping technique. That is a known issue in the glazing industry, and it is a real reason to have someone who understands it do the work rather than the site labourer with a razor blade.

The job is not "make it look clean." It is knowing what is on the pane, what will lift it, and what the glass will tolerate.

What We Remove

Post-construction glass collects a range of residue depending on the trades involved and how long the windows sat exposed.

Construction Dust

Fine drywall, concrete and sanding dust settles over the entire pane and packs into frames, tracks and sills.

Stickers and manufacturer labels

New units ship with product labels, energy ratings and protective film. Left in place through the build, the adhesive cures and becomes far more stubborn to lift.

Paint and overspray

Spatter, roller mist and overspray from interior and exterior finishing work.

Silicone and Sealant Residue

Caulking and glazing work leaves smears at the perimeter of the pane and along the frame.

Adhesive and Tape Residue

Protective film, painter's tape and construction tape all leave behind adhesive when pulled.

Mortar, stucco and construction splash

Masonry, stucco and parging work throws material onto ground-floor and adjacent glass, and it hardens fast.

Post-Construction Window Cleaning for Homes and Businesses

Residential New Builds

A new home is a significant investment and the windows are what let the finished space actually show. We work with homeowners, builders and contractors on custom homes, new subdivisions, additions, major renovations and replacement window projects, timing the clean so it lands after the messy trades are done.

Commercial and New-Build Projects

Commercial handovers are judged on presentation. Clean glass makes an obvious difference when an office, retail unit, restaurant, clinic or multi-tenant building is preparing to open. We work to occupancy dates and can coordinate with site supervisors on access.

For ongoing maintenance once the building is occupied, see commercial window cleaning. For businesses that need regular front-facing glass upkeep, see storefront window cleaning. Homeowners moving from a final clean into a maintenance schedule can look at standard window cleaning.

If the build also left the exterior surfaces dirty, home detailing and pressure washing can be scheduled in the same visit.

Timing the Clean Correctly

Book the glass clean after the dirty trades are finished, not before. Painting, drywall sanding, masonry, stucco and landscaping all re-contaminate windows that have already been done, and paying twice is avoidable.

For most projects the right window is after finishing work and before the final walkthrough or occupancy date. If the schedule is uncertain, tell us and we will work backwards from your handover date.

Serving Homeowners Across the Niagara Region

Next Gen Window Cleaning provides professional window cleaning services throughout the Niagara Region, including:

Our location pages make it easy to find local service information and request a quote.

Looking for post-construction window cleaning near you?

Send us your location, property type and a few photos of the windows, and we'll help determine the appropriate scope.

GET A FREE QUOTE

Our Process

We keep the process straightforward for homeowners, builders, contractors and property managers.

1

Request a free quote

Give us the property type, site location, approximate number of windows and your target completion date. Photos of the residue help.
Click for free quote

2

Scope and schedule

We confirm what is included, sort out site access and trade coordination, and lock in a date that fits your handover.

3

Assess the residue

On site, we identify what is actually on the glass before any tool touches it, and match the method to the material.

4

Clean and inspect

Glass, frames, tracks and sills are cleaned, then checked in the right light before we call it done.

Frequently Asked Questions

What is post-construction window cleaning?

It is a specialized clean performed after construction, renovation or window installation work. The focus is removing bonded residue like construction dust, labels, paint, adhesive, silicone and masonry splash from glass that has never been cleaned.

Can construction residue scratch new windows?

Yes. Hardened residue dragged across a pane with the wrong tool leaves permanent marks. Some tempered glass also carries manufacturing surface debris that can scratch even under normally correct technique, which is why the assessment step matters.

When should windows be cleaned after construction?

After the dirty trades are done, painting, drywall, masonry, stucco and landscaping, and before your final walkthrough or occupancy date. Cleaning earlier usually means paying to clean twice.

Do you work with builders and contractors?

Yes. We handle final cleans for builders, general contractors, renovators and property managers, and can coordinate scheduling and site access around your trades.

Do you remove stickers and manufacturer labels?

Yes. Labels, energy stickers, protective film and the adhesive left behind are a standard part of the job.

Do you clean interior and exterior glass?

Both are available depending on project scope, site access and the condition of the property.

Do you clean the frames and tracks too?

Yes. Construction dust packs into frames, tracks and sills, and glass that is clean inside a dirty frame does not read as finished. Frame and track detailing is part of the service.

How do I get a quote for post-construction window cleaning?

Send the site location, property type, approximate window count and a few photos of the glass. Request a free quote or call or text 888-561-5331.

Ready for the Final Clean?

Whether it is a single custom home or a full development handover, we will scope it around your completion date and get the glass to a finished state.

CALL / TEXT 888-561-5331

Service Areas

We serve a wide service area with seasonal scheduling depending on demand. To confirm service in your area and find the right local page, visit our locations list.

Serving St Catharines, Niagara Falls, Welland, and surrounding areas.

EXPLORE LOCATIONS

The Reviews Speak for Themselves

We take pride in repeat customers and long-term relationships. If you’re comparing companies, reviews are usually the best indicator of what the experience will be like.
EXCELLENT
Google star 1Google star 2Google star 3Google star 4Google star 5
Based on 51 reviews
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M S profile picture
M S
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Always delighted with Mike and crew...complete attention to detail! On time, courteous, and the only evidence they were here are the sparkling windows!
Posted on Google Google
Lindsay Hatch profile picture
Lindsay Hatch
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I think this is our 5th year in a row using Next Gen and this crew is just incredible. Professional and clean they get the job done and clean up after themselves like they weren’t even there. My windows are so clean I can’t even tell they are there right now. They also cleaned out our gutters/ power washed our siding and did a certified spider spray which is necessary this close to Lake Ontario. Thanks for all the hard work and we will definitely be calling you again next time!
Posted on Google Google
Cheryl Ramey profile picture
Cheryl Ramey
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We hired Next Gen Window Cleaning to clean our siding and outside windows! Excellent work and a great crew! Highly recommend hiring this company!
Posted on Google Google
Pam Shanks profile picture
Pam Shanks
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The team arrived as scheduled and did an excellent job, including cleaning the screens and doing the garage windows. Very meticulous attention to detail, very professional and friendly. We are very pleased with the results and have already booked our next service.
Posted on Google Google
Robert Lowe profile picture
Robert Lowe
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We have had this team of polite professional lads clean our windows & screens, inside and out for several years now. They are punctual, neat, well spoken,cheerful, always willing to go the extra mile to ensure a fantastic job and reasonable to boot. Thank you Ben, Mike, Cameron & Andrew. Bob & Wendy Lowe
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Maria DiBastiano profile picture
Maria DiBastiano
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I am so pleased with the work that was done. The guys were punctual professional looked into every detail that needed to be done the windows sparkle when they were finished. Highly recommended and definitely use again
Posted on Google Google
Terry Saltford profile picture
Terry Saltford
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Used Next Gen for second year now. Great service, pricing and staff. A pleasure to look out clean, clear windows again. Will surely use again.
Posted on Google Google
Sheila Cameron profile picture
Sheila Cameron
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Ben, Mike and the rest of the NXT GEN team just did an incredible job cleaning the windows both inside and out, screens(!!!) as well as washing the siding on our 2 storey house. I was blown away by their professionalism and attention to little details like cleaning screen troughs. Great pricing too. After using "Paradisus" for the past few years we now say farewell "P" and hello NXT GEN. Thanks again.
Posted on Google Google
Nick Sebastian profile picture
Nick Sebastian
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
My gutters which are too high for my confort level on a ladder were blocked. After an attempt at using a power washer attachment with no success I put in a request on Next Gen's website. Andrew replied withing minutes. That was a Thursday about 4pm. He was there for a quote the next morning on his way to another job. That was Friday. I was booked for the following Monday. That's today. It's 1 pm and the job is done! PERFECTLY clean, not a pebble out of place. Top shelf service! Pricing was super reasonable so I also had them clean the entire outer shell of the house, all soffits and aluminum, power wash the driveway, clean all the windows and do some ant and spider pest control. 2 men showed up on time and ready to work, Andrew being one of them (all owner operators - no temp kids who know nothing). I can not give a higher recomendation. Nick & Julie Sebastian
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BOOK NOW

Spring spots fill up fast, especially for window cleaning and exterior refreshes. If you want to get on the schedule early, request a quote today and we’ll take care of the rest.
GET FREE QUOTE

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“Window cleaning and exterior services for homes and businesses.”

Serving the Niagara Region including St Catharines, Niagara Falls, Welland, and surrounding areas.

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