239 Exteriors

Answers

Can all three exterior cleanings share one visit?

A homeowner who wants the roof, the paver driveway and the windows handled together is really asking two questions at once, and only one of them comes with a clock attached.

Short answer

No roofing, paver or glass document read for this answer keeps the three cleanings apart in time. What the documents do separate is a paver sealing from its cleaning, by at least 24 hours without moisture before most sealers in ICPI's Tech Spec 5, and a bleach roof solution from laminated glass, since the National Glass Association lists bleach among materials that may harm it.

The split

Three cleanings, plus a sealing that runs on its own clock

Split the question before answering it. One half is the three cleanings: a roof, a paver surface and the outside of the glass. The other half is the paver sealing, which the site's own paver copy describes as a separate second step that can follow the deep clean rather than a part of it.

The two halves get very different treatment in the documents. The roofing bulletins write about roofs, the Interlocking Concrete Pavement Institute writes about concrete pavers, and the National Glass Association and the window makers write about glass. Each one sets conditions for its own surface. None of them sets a wait between one surface and another, and no source read for this page gives the length of any whole-exterior job.

The sealing is where a published wait appears. A paver sealing is separated from its cleaning by a dry interval and followed by a traffic-free interval, and those two are the only waits the documents print. So the honest shape of the answer is that the cleanings carry no calendar between them, and the sealing carries one of its own.

Getting all three onto one estimate is a separate matter from getting them onto one day, and the form's “More than one service” choice is explained under one estimate covering all three surfaces.

The clock

The published wait sits between a paver cleaning and its sealer

The one clock in a combined visit belongs to the sealer, and two independent documents print the same number for it.

ICPI's Tech Spec 5 says: “The cleaned surface must be completely dry prior to applying most sealers. Allow at least 24 hours without moisture or surface dampness before application.” SEK-Surebond's site preparation bulletin, TB.6, says “it is highly recommended that the surface be free from any moisture/rain/water for a minimum of 24 hours prior to the application of most sealers.” Both write about most sealers, not every sealer, and SEK adds in its bulletin TB17 that “Select Surebond sealers can be applied to a damp surface or are rain safe in a much shorter period of time”, so a given sealer's label has the last word on its own dry time.

TB17 also runs the clock past the application: “Once a sealer has been applied, a surface needs to remain dry for 24 hours post application.” Rain or standing water too soon, SEK writes, and the surface can become cloudy or blotchy. ICPI, for its part, tells anyone cleaning or sealing pavers to “Turn off all automatic sprinkler systems during cleaning, sealing and drying.”

Read together, that is why a paver sealing is the part of a combined visit that cannot simply be folded into the cleaning. What has to be true before the sealer goes on, step by step, is set out under the conditions paver sealing works under.

The overspray

What a roof solution and an impact window must not share

The second limit is not a wait at all. It is a separation in space, between a roof solution and the glass below it.

ARMA's roof bulletin describes lightening algae discoloration with “a solution of liquid household bleach (sodium hypochlorite) and water.” The National Glass Association's FB01-00 (2023) says: “For cleaning laminated glass, or windows and doors containing laminated glass, do not use anything that is corrosive such as solvents, acids, bases or other chemicals.” Its examples of materials that may cause harm include “Bleach (or other solutions containing sodium hypochlorite)”.

The bridge to a Naples house is what the window makers say about their own products. PGT writes: “Our hurricane windows and doors are made with laminated glass.” Cardinal Glass says its Sea-Storm laminated glass “is used in hurricane-resistant windows and doors to withstand wind-borne debris and extreme wind pressures.” Put those lines side by side and keeping roof overspray off impact glass is a technical requirement of any sequence that puts soft washing and glass on the same property.

That separation is also the reasoning behind the order questions, which are their own pages and not a published rule: whether the roof is cleaned before or after the windows, and whether the roof is cleaned before or after the pavers. Glass carries one more condition that has nothing to do with the roof: NGA advises that cleaning tinted and reflective glass in direct sunlight should be avoided, and the PGT, CGI and WinDoor guide's tip is to clean glass during cooler temperatures without direct sunlight, a condition taken up under whether windows can be cleaned in the summer sun.

The estimate

What the documents leave to the property, the sealer and the weather

The documents set the limits. They do not say how many days a particular roof, driveway and set of windows take, in what order, or whether the sealing lands on the cleaning day.

Those answers depend on the property, the sealer and the weather on the day, and no page can print them in advance. What 239 Exteriors states is its offer: the estimate is free, by phone or through the form.

  • The three cleanings: no published wait between them.
  • The paver sealing: at least 24 hours without moisture before most sealers, per ICPI and SEK-Surebond, and the sealer's own label for any exception.
  • The roof solution: kept off laminated glass, per NGA's list of materials that may cause harm.

Two neighboring questions have pages of their own: whether a house under contract can be cleaned, for a sale in progress, and what salt air does to a home exterior, for a coastal address.

FAQ

Related questions.

More questions are answered one per page in the answers.

Does rain between a paver cleaning and the sealing change anything?

It can restart the wait. SEK-Surebond's TB17 says a surface wet with standing water from rain or cleaning should dry approximately 24 hours before a sealer is applied, depending on project conditions, and stay dry for 24 hours afterward, or it can turn cloudy or blotchy. SEK also names select Surebond sealers that tolerate a damp surface, so the label of the sealer in use settles it.

Are all impact windows made with laminated glass?

No source read says so of every impact window. PGT says its own hurricane windows and doors are made with laminated glass, and Cardinal Glass says its Sea-Storm laminated glass is used in hurricane-resistant windows and doors. Treating impact glass as laminated is reasoning from those two makers, and the maker or installer of a particular window is the one who can confirm what is in it.

Is the order of the three cleanings a published rule?

No. None of the roofing, paver or glass documents read for this answer sets a sequence across the three surfaces. An order such as the roof before the windows is reasoning from what the documents do separate, chiefly keeping a bleach roof solution off laminated glass, and each pairing is reasoned through on its own answer page rather than printed as a rule.

Sources

Where this page's facts come from.

Every technical statement above is drawn from one of these documents. Nothing on this page about 239 Exteriors goes beyond what the company itself states.

  1. Interlocking Concrete Pavement Institute (ICPI, now CMHA). Tech Spec 5, Cleaning, Sealing and Joint Sand Stabilization of Interlocking Concrete Pavement, PAV-TEC-005-22
  2. SEK-Surebond. Technical Bulletin TB.6, Site Preparation Before Sealer Application
  3. SEK-Surebond. Technical Bulletin TB17, Weather Can Affect The Outcome
  4. National Glass Association. Glass Technical Paper FB01-00 (2023), Proper Procedures for Cleaning Architectural Glass Products
  5. Asphalt Roofing Manufacturers Association (ARMA). Algae Discoloration of Roofs, revised June 2024
  6. PGT Windows and Doors. Home Protection and Security
  7. Cardinal Glass Industries. Glossary: Laminated Glass
  8. PGT, CGI and WinDoor. Care and Maintenance Instructions, 2024
  9. Techniseal. Product Guide, document 341-418, revision 02/24

Page reviewed September 27, 2026. Florida statutes are quoted from the 2026 Florida Statutes; every image on this page is a labeled concept illustration, not a photograph of a completed job.

Keep reading

Where to go next.

What we do

The three surfaces we clean

What each of the three services covers, in the company's own words, and where an exterior cleaner's job stops.

Read it

The sequence

How paver sealing works

Clean, then a drying condition, then the sealer. What ICPI and the sealer makers publish about each step.

Read it

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239-500-WASH(239) 500-9274

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