Phoenix Glass Knoxville's Finest Windshield and Auto Glass Replacement Center 947.5706
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FAQ > Mobile Onsite Service Windshield, Door, Vent, Quarter and Rear Back Window Glass Replacement Questions
How long will it take to replace my windshield or other auto glass? What   we   would   call   a   normal   mobile   auto   glass   installation   usually   takes   from   45   to   90   minutes.      Installations   that   take   longer   than   90 minutes   are   what   we   classify   as   difficult   installations.      For   obvious   reasons   it   is   not   practical   for   us   to   do   these   types   of   installations   in the   field   so   they   do   not   qualify   for   our   mobile   On   site   service.      As   a   rule   they   require   that   the   installation   be   performed   and   monitored for   a   period   of   time   in   our   facility.      Some   of   these   types   of   installations   are   timely   because   they   are   done   in   stages,   some   of   which cannot be accomplished until the adhesive has cured for a minimal amount of time.
Most   vertical   set   windows    such   as   a   pickup   truck   back   glass   may   require   being held   in   place   by   different   manners   and   for   many   reasons   (paint   damage   being   the main   one)   need   to   be   done   in   and   remain   in   our   service   centers   controlled environment until the adhesive cures for a certain amount of time.
Will you vacuum up the broken glass? Absolutely!      Don't   touch   that   mess   and   risk   getting   hurt.      We'll   do   our   very   best   to   vacuum   up   the   broken   glass   to   make   your   vehicle   the best we possibly can.
Is it ok to have my windshield installed in cold weather? The   answer   to   your   question   varies   greatly   depending   on   the   vehicle   in   question   but   cold   weather   is   a   definite   game   changer   for   the majority   of   today’s   vehicles   as   they   contain   several   plastic   components   such   as   cowls,   moldings   and   fasteners   that   become   extremely delicate and difficult to work with below 50F (10C).
If   the   vehicle   has   a   cable   type   manual   or   power   window   regulator   the   only   sure   way   to remove   all   the   broken   tempered   glass   fragments   is   with   compressed   air.      These   types   of door,   quarter,   or   back   glass   window   regulators   have   several   places that   the tiny   pieces   of   broken   tempered   glass   can   fall   into   as   well   as   grease points   that   lubricate   the   moving   parts.      When   the   glass   is   broken the   falling   broken   tempered   glass   fragments   will   adhere   to   these grease   points   like   a   magnet   and   it   only   takes   one   tiny   piece   of glass   to   get   caught   and   jam   up   the   mechanism   causing   the window   regulator   to   break.      We   have   seen   some   of   these   cable door   glass   regulator   units   cost   as   much   as   $600   dollars   to   replace   so taking   an   unnecessary   chance   with   these   fragile   cable   type   window   regulators just isn’t a good way to go.
Some   hatch   type   back   glass   installations   such   as   the   GM   vehicle   pictured   to   your   right   have   an   inner skeleton   that   fills   with   broken   tempered   glass   fragments   and   absolutely   cannot   be   removed   without   the use of compressed air.
Some   doors   do   not   have   large   enough   access   holes   to   the   interior   area   of   the   door   that   will   allow   a vacuum   hose   to   pass   through   the   entire   range   of   the   door.      In   many   cases   the   only   access   is   through   the speaker   opening   and   the   only   method   of   removing   all   the   broken   tempered   glass   is   with   the   use   of compressed air.
When   the   door   or   rear   window   back   glass   breaks   the   tempered   glass   fragments   inside   the   door   fall   and are   captured   within   the   rails   of   the   vehicle's   inner   guard   beam   and   can   not   be   accessed   directly   by   the vacuum and absolutely cannot be removed without the use of compressed air.
Due to the construction of some vehicles, the door, quarter and back glass replacement windows need to and should be done in at our service center. Here are just a few examples:
After I have my windshield replaced, how do I know if it was done right? You   don't!      Without   removing   the   windshield,   it's   impossible   to   tell   if   the   windshield   was   prepped   correctly,   if   critical primers   and   proper   flash   times   were   used,   or   even   if   the   proper   amount   and   type   of   urethane   was   used.      Once   a windshield   is   installed   all   the   critical   installation   preparation   steps   are   hidden   under   the   moldings   and   black ceramic   band.      If   it   looks   like   a   clean   windshield,   back   glass   or   other   type   of   auto   glass   installation   and   the moldings   are   lying   correctly   you   can   only   guess   it   was   done   right   and   in   reality   those   things   are   only   cosmetic,   it's what   is   underneath   and   when   and   how   it   was   done   during   the   replacement   installation   process   that   counts.      The only   sure   way   to   tell   if   a   windshield   or   other   type   of   auto   glass   is   properly   installed   is   to   crash   test   it,   but   we   sure don't recommend it.
Another   major   problem   would   be   a   windshield   glass   with   an   encapsulated   molding,   or   just   about   any   molding   that   is attached   to   the   windshield   for   that   matter,   installed   in   cold   weather   is   that   it   would   “most   likely”   not   be   able   to   seat   down properly   into   the   vehicles   pinchweld   which   would   elevate   the   glass   high   above   it’s   intended   position   resulting   in   a   poor bond   (likely   a   leak)   and   at   the   very   least   cosmetic   problems.      The   typical   auto   glass   installers   solution   in   that   situation   is to   combat   it   by   applying   an   oversized   bead   of   urethane   to   insure   that   it   makes   full   contact   which   in   turn   opens   the installation   up   for   several   other   problems   such   as   the   molding   not   laying   flat   as   well   as   being   able   to   slip   off   the windshield.      Another   reason   this   should   never   be   done   is   that   a   much   larger   bead   of   urethane   will   require   a   significantly longer amount of time for the urethane adhesive to cure which will have a major affect on the occupants safety.
Some   windshield   companies   or   installers   may   tell   you   that   they   use   a   fast   cure   urethane   that   has   a   one   hour   drive   away   time.   In   our real   world   experience   the   one   hour   drive   away   time   is   only   true   when   the   adhesive   is   applied   as   the   manufacturer   intended   it   to   be.      All the   figures   stated   by   the   manufacturers   of   urethane   adhesive   products   are   typically   based   on   a   6mm   x   12mm   bead   or   a   1/4   by   1/2   inch bead.      The   larger   the   bead   of   adhesive   is,   the   longer   the   curing   time   will   be   unless   there   is   a   2   part   chemically   induced   curing   urethane adhesive used which is very seldom, if ever, used in the mobile on site auto glass windshield replacement industry.
Another   sales   pitch   myth   that   goes   around   in   the   wild   world   of   windshield   and   auto   glass   replacement   is   that an   installer   can   use   a   heat   box   to   maintain   the   urethane   adhesive   used   for   cold   weather   installations at   the   proper   temperature   so   installing   your   windshield   in   cold   weather   won’t   be   an   issue.      The Urethane   adhesive   used   in   the   automotive   industry   to   bond   your   windshield   and   other   auto glass   installations   like   door   glass   side   windows,   quarter   glass   windows   and   rear   back   glass windows   to   your   vehicle   is   an   extremely   thick   material   in   its   uncured   state.      The   real   truth   and reason   for   the   heat   box   is   to   keep   the   urethane   at   a   temperature   that   makes   the   urethane adhesive   what   is   referred   to   as   gun-able   which   simply   means   thinner   thus   more   usable. What   that   means   in   the   real   world   is   that   by   keeping   the   adhesive   warm   it   can   be   easily pumped   from   a   hand   or   power   caulking   gun   with   a   lot   less   effort.      It   does   without   a   doubt make            the urethane   adhesive   much   easier   to   apply   but   by   the   time   you   finish   applying   it   on   the   vehicles cold   steel   metal   pinchweld   opening   “on   average   some   fourteen   or   more   feet   in   circumference”   and   try   to   place   the   cold   windshield   in position,   the   urethane   will   be   at   ambient   temperature   making   the   windshield   extremely   difficult   to   press   down   into   the   proper   depth defeating   the   whole   purpose.      At   the   critical   moment   when   the   windshield,   back   glass   or   other   type   of   auto   glass   is   set   into   place   it requires   warm   adhesive,   a   warm   molding   typically   at   or   better   then   70   degrees.   With   cold   metal,   adhesive,   windshield   and   a cold   molding,   to   top   it   all   off   it   really   isn’t   likely   it’s   going   to   be   what’s   referred   to   as   a   good   set   or   installation.     Also   typically   the   complete   operation   from   the   first   inch   of   the   application   of   the   urethane   adhesive   must   be accomplished   within   an   8   to   10   minute   time   frame   before   the   urethane   begins   to   skin   over   or   harden   and thats   with   a   preprepared   windshield   or   other   type   of   glass   that   was   previously   primed   at   or   above   40 degrees   and   stored   in   a   way   that   it   would   keep   it   free   from   any   and   all   contamination   hazards   on   the bonding surface of the glass.
The   next   best   way   to   know   is   to   know   the   reputation   of   the   company   that   installed   it.      Make   sure   the   company   has   an   actual address   complete   with   an   actual   store   front   as   there   are   many   gypsy   type   auto   glass   companies   operating   in   and   around   Knoxville   as well   as   it’s   surrounding   areas.      No   store   front   usually   goes   hand   in   hand   with   a   pick   up truck   and   a   cell   phone.      You   can   easily   accomplish   this   using   Google   Maps   Street   View .     Google   allows   you   to   see   if   the   company   your   considering   using   for   the   installation   of your   new   replacement   windshield   turns   out   to   be   a   home,   an   apartment   complex   or even   an   empty   lot.      With   the   power   of   the   internet   anyone   can   make   a   attractive website   to   lure   you   in.      They   typically   have   no   liability   insurance   and   when   something goes   wrong   you   are   on   your   own   since   they   are   very   difficult   to   track   down   and   with   the power    of    Caller    ID    they    stop    answering    your    repeated    phone    calls.    Due    to    poor workmanship    during   the   average   month   here   at   Phoenix   Glass   we   re-do   auto   glass   in about   6   vehicles   per   month   from   this   type   of   so   called   auto   glass   company.   By   the   time   you add   up   the   expenses   of   a   new   glass,   mouldings   and   repairing   the   body   damage   that   was   done   to   the   pinchweld   the   price   for   repairing   a vehicle   in   this   type   of   situation   is   usually   3   to   4   times   what   it   would   have   cost   if   it   were   done   right   in   the   first   place.      Unfortunately   most of   these   installers   are   or   were   employed   and   trained   by   some   of   the   major   chain   outfits   where   they   learned   these   corner   cutting   traits   to make   more   money   and   actually   have   convinced   their   selves   to   believe   that   they   are   doing   the   work   properly.      Typically   these   employees are   paid   by   salary   plus   commission.      In   slow   times   the   employee   gets   the   minimum   pay   to   save   the   company   money   but   when   times   are busy   as   an   added   incentive   the   employee   is   given   a   commission   based   on   production.      The   more   jobs   completed   the   more   pay   received and   the   only   way   that   can   happen   is   by   speeding   up   the   installation   process   which   is   where something   has   to   suffer   in   order   to   make   that   happen   and   it’s   usually   you   and   your vehicle.   In   the   event   these   short   cuts   lead   to   a   problem   at   the   very   least   your   going   to loose   some   valuable   time   having   your   vehicle   redone   and   at   the   very   worst   it   can   lead to   serious   injury   or   the   loss   of   your   life   or   that   of   someone   you   love   so   be   very   careful when choosing who you let install your windshield or other glass in your vehicle.
With   all   the   different   variables   of   windshields,   side   door,   quarter   and   rear   back   glass   windows   and   other   types   of auto   glass   parts   that   are   involved   in   the   many   makes   and   models   of   cars,   trucks   and   SUV’s,   fifty degrees   “in   our   experience”   is   pushing   it   all   toward   the   red   line   about   as   far   as   one   can   go with   out   having   any   drama   or   incidences   such   as   parts   breaking,   cracking   or   seating properly   and   get   anywhere   close   to   a   good   windshield   or   any   other   type   of   auto   glass installation   if   you   take   everything   thing   thats   involved   into   consideration.      All   thats   left   to add   to   the   equation   is   the   picture   of   the   cold   installer   with   the   frozen   fingers   and   it   pretty much ends up with the word Fail in the end.
For you convenience Phoenix Glass accepts most major credit and debit cards
Most   door   glasses    that   operate   in   an   up   and   down   manner   average   45   to   90   minutes   to   install   and   in   most instances   you   will   be   able   to   operate   them   immediately.      In   the   event   that   there   is   a   urethane   bonding   system   involved   you   may   not   be able too operate your new window until the adhesive cures after a minimum of 24 hours.
Can Phoenix Glass set an appointment time for my mobile on site windshield replacement? We   would   really   like   to   be   able   to   do   that   for   you   but   the   best   we   can   honestly   do   is   a   four   hour   window.   Almost every   auto   glass   company   gives   you   a   4   hour   window   of   the   time   that   they   will   arrive   at   your   location.   If   they don't   it's   because   you   are   the   only   one   they   are   working   for   that   day   which   should   light   a   pretty   bright   light   bulb in   your   mind.      In   reality   a   4   hour   window   is   about   as   precise   as   scheduling   gets   for   an   honest   auto   glass windshield   replacement   company   that   offers   mobile   auto   glass   service.      Mobile   auto   glass   replacement   is   a service   industry   trade   where   a   technician   often   encounters   unexpected   situations   not   only   with   the   vehicle involved   but   traffic   and   weather   related   items   as   well.      Some   jobs   are   easy   and   some   are   very   difficult.      Some customers   are   easy   and   some   have   lots   of   questions.      Some   insurance   companies   we   do   work   for   have   extensive before   and   after   on   site   paperwork   involved   which   can   add   quite   a   bit   more   time   to   a   particular   job.      At   least   once, if   not   more,   on   a   busy   mobile   auto   glass   technicians   day   a   customer   will   cancel   or   not   be   there   or   may   not   answer   their   phone   to   verify that   they   are   there.   Many   times   while   on   site   at   a   body   shop   our   auto   glass   technicians   will   have   an   unplanned   job   added   or   postponed because   it   isn’t   ready   to   be   installed   which   changes   the   entire   daily   job   plan.      Please   keep   in   mind   that   we   aren't   trying   to   make   excuses here,   we're   just   being   honest   and   pointing   out   some   of   the   pitfalls   of   our   average   day   so   you   can   have   an   understanding   of   some   of   the reasons   why   we   can't   give   you   an   honest   appointment   time.   The   reasons   go   on   and   on   but   the   bottom   line   here   is   that   the   technician will do his or her very best but some things are just not in their control.
If conditions are too cold for your particular vehicle at the available installation time for a safe and or sensible installation we will suggest that your replacement glass installation be done in our service centers climate controlled environment. Our Customer Service Representatives will do their best to advise you whether or not your vehicle can or should be done mobile. Traffic is just one of the issues an auto glass technician encounters each day with our mobile onsite service A cold weather replacement windshield, door, vent, quarter, or rear back glass window is a very risky operation A cold auto glass technician with frozen fingers 8 to 10 minutes is the maximum amount of time an auto glass installer has to have the windshield or other urethane bonded auto glass parts set in place. A urethane adhesive warming box Cold weather windshield installations A cold weather replacement windshield, door, vent, quarter, or rear back glass window is a very risky operation A typical cable type door glass window regulator jammed with broken tempered glass. A Ford Sport Trac pick up truck power rear window back glass has a cable type window regulator and the broken tempered glass can not be cleaned out with out compressed air. A Power window regulator typically found in a GM or Ford pickup truck A typicial car, truck or SUV door glass power window regulator and motor assembly Broken tempered glass trapped in the guard beam, and outer door skin Broken tempered glass trapped in the guard beam, door locks, and ledges For a sensable no drama installation, a vertically set rear back window glass such as this Ford pickup needs to be  held in place until the adhesive completely cures Most vertical set windows such as a pickup truck back glass may require being held in place by different manners and for many reasons (paint damage being the main one) Some hatch type back glass installations such as the GM vehicle pictured to your right have an inner skeleton that fills with broken tempered glass fragments If conditions are too cold for your particular vehicle at the available installation time for a safe and or sensible installation we will suggest that your replacement glass installation be done in our service centers climate controlled environment. If conditions are too cold for your particular vehicle at the available installation time for a safe and or sensible installation we will suggest that your replacement glass installation be done in our service centers climate controlled environment. Make sure the company has an actual address complete with an actual store front Poor workmanship caused the rust on this cars windshield pinchweld Make sure the company has an actual address complete with an actual store front Poor workmanship on this newly painted Ford truck windshield.  It was installed with no primers and a poor excuse for a urethane bead, it has several leaks! The only person who really knows if your windshield is installed properly is the auto glass technician that installed it.
How do I know your installers are qualified? Your   Phoenix   Glass   Auto   Glass   Technician   keeps   up   with   the   times   and   have   a   high   degree   of   understanding   of   the   ins   and   outs   of   rear back   glass   window   replacements.      They   are   familiar   with   the   proper   tools,   methods   of   removal,   preparation   of   the   pinchweld   and possess   the   knowledge   of   the   many   different   adhesives   available   that   will   provide   the   strength   to   hold   the   back   glass   in   your   vehicle.     Along   with   all   that   they   also   understand   and   use   the   proper   methods   that   prevent   leakage   and   rust   around   the   pinchweld   where   the auto glass bonds to the vehicle. Phoenix   Glass   technicians   have   as   much   as   42   and   none   less   than   15   years   of   auto   glass   experience   and   have   literally   installed thousands   of   rear   window   back   glass   windshields.      You   can   rest   assured   that   your   new   replacement   back   glass   will   be   properly   installed to meet both FMVSS  and AGRSS standards so that your vehicle will be restored to the factory specifications or better.
There are many different types of vehicles in todayís world and each of them have their own peculiarities. Your customer service representative at Phoenix Glass will be more than happy to answer any questions you may have for your particular vehicle. A Chevrolet Monte Carlo that had a previous poor workmanship windshield installation in cold weather.
This is a Chevrolet Monte Carlo that had a previous windshield installation done in cold weather taken from 1 of our poor workmanship pages. You   can   plainly   see   that   the   flange   of   the   windshield   molding   held   the   windshield   from   being   allowed   to   sink   down   to   the   correct   hight within   the   vehicles   pinchweld   flange   causing   the   windshield   to   sit   extremely   elevated   above   the   vehicles   body.   The   thick   lines   at   the   top of   the   moldings   in   photos   1   and   2   are   the   cut   off   top   flange   edge   of   the   molding   that   lap   over   the   cars   body.      We   cut   them   off   to   show exactly   where   it   is   in   elevation   above   the   car   body.      The   molding   should   be   sitting   down   just   barely   above   the   level   of   the   body   the thickness   of   the   top   flange   edge   of   molding.      In   photo   3   you   can   actually   see   the   massively   tall   bead   of   urethane   adhesive   that   was applied   to   compensate   for   the   situation.      The   Monte   Carlo   is   one   the   most   popular   vehicles   in   America   at   the   time   of   this   writing   and   the windshield   molding   on   this   car   and   many   makes   and   models   of   vehicles   just   like   it   are   very   rigid   when   they   are   cold.      They   should   never be   done   in   cold   weather   because   without   an   extremely   warm   windshield,   molding,   adhesive   and   vehicle   the   windshield   absolutely   will not seat properly.
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A real world example of what happens in this type of cold weather windshield installation: