I would recommend starting with making sure all the existing windows and securely closed and locked.  I find windows partly open because they have been painted that way.  Take some time to make sure each window closes properly add weather stripping as needed.

Add wather stripping to all doors

check that all the heating ducts are connected securely

The best thing you could do for your home to keep the warm in and the cold out is to 1st. check your insulation in your attic if your not properly insulated the heat will escape. Another is making sure your windows are secured and latched. and proper weather seal is on your doors so draft cannot come in. 

There are a lot of questions that would need to be answered. Here are just a few:

1. What is the size of the window you are looking for. 

2. What type of material- vinyl, wood, fiberglass?

3. what style of window are you looking for? casement, double hung etc?

As a company we require that we meet with a customer just to find out all of the details, measurements etc. At this same meeting we give you a free written estimate right in hand. This will help you know exactly what you can expect to pay and the work we will cover. 

Edgar makes great points of matter in regards to the window selection and the Point of Insualtion. We SPray Foam Every New Home and are extra focused on sealing the envelop properly. We are located in a sub tropical climate and the principles apply adversly although nearly the same.

We ar eable to achive Power bills from 60-160 dollars on homes from 2000 sqft to 6500 Sqft. Air Loss, Insulation, and proper install of product

PROTIP: Watch ou twith the Term "Builder Grade" A Seasoned Window and door expert from Lowes will educate You on who makes the  "Builder Grade" windows You might speak of. There is a lot of " Razzle Dazzle in Windows and doors"

Check the performace & Rating. Do Not get Oversold and get a solid warranty orinated window.

Remember if they are not installed correctly and sealed IT does Not matter.... air flow is air flow... Loss =Loss

Billy Gavigan

Great Question!!

I suggest take a look at the ProVia Endure high grade vinyl window. 

Triple pane is what I sell now and has very low U-factor and air infiltration.

I love their low profile slim casement window, just amazing.

The quality is nothing I seen before in my 22 years in this field.

Available in new contruction nail fin.

https://www.provia.com/productdetail/vinyl-windows/endure

Installation is very important, good window + poor installation = Problem.

Cost varies from contractor to  contractor. Check with your local building supply stores that carry ProVia products (not HD and Lowes) or go to PorVia to find a dealer. 

Suggest you request bids from several dealers and supply stores with the same specs

Best wishes

Aluminum windows are not energy efficient and they are noisy.  If the window is more than 10 years old, replace it with an energy star rated vinyl window that has bronze outside/white inside.  It will look better, be quieter and the energy savings will pay you back in a very short time.

I have seen it done and seen the paint last if cleaning is thorough and the proper paint is used but the first answer is true. You won't replicate a factory finish and it is nore difficult to do than a wood window. The paint finish won't look as good but from a short distance its ussually not noticeable. We use alcohol to clean surfaces prior to painting to get a good clean surface. With metal the temperature needs to be ideal also. Not too hot, not too cold.

Jon Brewer

Dear C E,

I would leave the window alone.  Aluminum windows are typically electro statically painted in a controlled environment when they were originally built at the factory.  This environment includes air cleaners, pressure sprayers, heat/infrared curing ovens and lots of air handling equipment (large fans).  This controlled environment leaves your aluminum windows looking like brand new car paint finishes.  It is nearly impossible to replicate such an environment in the field at your home thus leaving many people with unhappy results when they try to repaint aluminum windows after they have been installed.  The weather effects and pitting you describe make this process almost impossible.  I believe you will be in for a lot of work and frustration and not happy with your end result if you try such a task. 

Sincerely,

John Patrick

President, Larmco Windows, Inc.

I believe you have to be a member in order to leave feedback. This keeps all of the reviews honest and trustworthy. Guild wuality is trusted by so many homeonwers and this is just a great way of keeping the reviews honest. 

I hope this helps answer yoru question!