Bay Windows

Evander’s bay win­dows are per­fect for those homes which are built to have them. A bay win­dow con­ver­sion can add much more light and space to a room, even though the amount of room added is rel­a­tive­ly small. 

With a bay win­dow, light can enter the room from three dif­fer­ent angles, max­imis­ing the day­light and there­fore mak­ing the room appear larg­er. Replace­ment bay win­dows from Evan­der are avail­able with alu­mini­um or uPVC frames, and each type has a range of colours and fin­ish­es to choose from, allow­ing you to cus­tomise so that it suits your home.

6 easy steps to your new windows

Bay Win­dows Materials

Bay Win­dows come in two main mate­ri­als. uPVC and alu­mini­um. uPVC is strong, durable and requires very lit­tle main­te­nance. Where­as alu­mini­um bay win­dows offer great longevi­ty, are extreme­ly tough and cre­ate a stun­ning look for most mod­ern homes.

upvc bay windows
aluminium bay windows

Whether you choose uPVC for a clas­sic fin­ish, or alu­mini­um cre­at­ing a stun­ning look for mod­ern homes, buy­ing Bay Win­dows from Evan­der guar­an­tees you strong, reli­able and beau­ti­ful win­dows for your entire home.

bay windows letting in sunlight

The Beau­ty of Bay Windows

Bay win­dows cre­ate a tru­ly unique look to a prop­er­ty. They have the abil­i­ty to give you extra space inside and also cre­ate a stun­ning look and feel to the out­side of your property.

As Bay Win­dows are made up of case­ment win­dows that arch around, they cre­ate a stun­ning panoram­ic view from inside and their large size allows a size­able amount of nat­ur­al sun­light to flow into your property.

Bay Win­dows look beau­ti­ful both inside and out, with dou­ble or triple glaz­ing they will help to reduce your ener­gy bill. They excel at retain­ing heat and also offer valu­able noise reduc­tion, which is espe­cial­ly impor­tant if you live on a busy street or next to the main road.

Ener­gy effi­cient windows

Buy­ing a new door or new win­dows can be a daunt­ing expe­ri­ence and can often seem expen­sive. How­ev­er, when you start to realise how much mon­ey is wast­ed by poor ener­gy rat­ed win­dows, that expense soon turns into an invest­ment. Around 20 – 30% of the heat in your home is lost through windows.

Installing new, ener­gy-effi­cient win­dows with dou­ble or triple glaz­ing will reduce this amount sig­nif­i­cant­ly, sav­ing you mon­ey and keep­ing the heat where it should be, in your home.

  • Reduce heat loss
  • Bet­ter noise insulation
  • Low­er month­ly ener­gy bills
energy efficient windows

Dou­ble and Triple Glazing

When replac­ing your win­dows or hav­ing new glaz­ing fit­ted, it’s impor­tant under­stand the dif­fer­ences between dou­ble and triple glaz­ing. They both have their own indi­vid­ual ben­e­fits, so a big fac­tor will be bud­get and indi­vid­ual pref­er­ence.


Dou­ble glaz­ing is two panes of glass in a sealed frame. Triple glaz­ing, as you can guess, is two panes of glass in a sealed frame with a third in the mid­dle. With the addi­tion of an extra pane this does increase the cost, but the addi­tion­al price can bring a lot of extra ben­e­fits and the extra paid can soon become an investment.


Dou­ble glaz­ing offers great insu­la­tion to your home so it’s under­stand­able that triple glaz­ing offers even more. Reports have shown that upgrad­ing your win­dows from dou­ble glaz­ing to triple glaz­ing can reduce your annu­al ener­gy bill by up to 50%. This, of course, is assum­ing that the rest of your house is well insu­lat­ed too. There’s no ben­e­fit of hav­ing well-insu­lat­ed win­dows just for the heat retained to seep out an old, drafty front door.

The green­house effect”

Most home­own­ers will be famil­iar with this term. Most peo­ple feel they can con­trol the cold weath­er by get­ting bet­ter insu­la­tion, Where­as in sum­mer, typ­i­cal­ly south, south/​west fac­ing win­dows, can increase the room tem­per­a­ture to unbear­able levels.

This is where triple glaz­ing can help as it has a low­er G-Val­ue (low­er is bet­ter for glass, keeps you warm in win­ter and cool in sum­mer). Dou­ble glazing’s G-Val­ue is typ­i­cal­ly around 70% and triple glaz­ing is around 30%-50%.

Safe and Sound

Home secu­ri­ty is always a big con­cern. Two-thirds of all break in’s occur through the front door, back door or a ground floor win­dow. To have stur­dy and secure doors, only to have old ground floor, sin­gle glazed win­dows with rot­ten frames com­plete­ly removes that lev­el of secu­ri­ty. Remem­ber that bur­glars are oppor­tunis­tic and will always look for the eas­i­est point of entry.

Dou­ble glaz­ing cre­ates a stronger win­dow and triple glaz­ing only increas­es this strength as there are three panes instead of two. Also, triple glaz­ing is extreme­ly effec­tive for noise reduc­tion mak­ing this a must if you live on a busy street or near the main road.

the difference between double and triple glazing
choose from any ral colour for your new windows

Your win­dows, your way

When it comes to the look of your new Bay Win­dows you’ll be spoilt for choice. We have mul­ti­ple styles and fin­ish­es for your new win­dows and frames and Evan­der offer over 9 colours as standard.

For the tru­ly unique, we also offer you the abil­i­ty to chose from any RAL colour. This gives you the abil­i­ty to match your win­dows to your home, garage or doors to com­pli­ment the over­all look and feel of your property.

  • Dou­ble and Triple Glaz­ing available
  • Over 9 Stan­dard Colours
  • Choose from any RAL colour
  • Full man­u­fac­tur­er warranty
  • All work­man­ship cov­ered for 12 months

Ben­e­fits of using Evander

As an Evan­der cus­tomer, you can rest assured that any work we car­ry out is ful­ly guar­an­teed, no mat­ter the type of job. Each part of our busi­ness is scru­ti­nised reg­u­lar­ly by var­i­ous indus­try bod­ies and accred­i­tors, who help us to go above and beyond in cus­tomer ser­vice, job safe­ty and engi­neer skills; among oth­er things. 

When you choose Evan­der, you’re choos­ing qual­i­ty, safe­ty and
pro­fes­sion­al­ism – which are exact­ly what your prop­er­ty deserves.

  • Impar­tial advice
  • All work­man­ship cov­ered for 12 months
  • DBS checked engineers
  • 5 Star Trust­pi­lot rating
  • Full man­u­fac­tur­er warranty
evander man in a van

Explore oth­er windows

Con­tact us today for your free, no oblig­a­tion quote