Restore and remove paint from old windows

Thinking about restoring windows in your house or reusing old window frames? Great idea! At Speedheater, we encourage window restoration and making use of the resources you already have. Doing so isn’t just kind to your wallet, it’s also kind to the environment and your surroundings. And best of all, old windows are incredibly beautiful and help give your house unique craftsmanship and character.

Whether you’re a beginner or professional, Speedheater’s products make window restoration fast, fun and non-toxic! We have all the tools you need to both prepare the material and ensure you get into all the nooks and crannies, and there’s no need to worry about damaging the surface or exposing yourself to harmful toxins while restoring your windows.

Step by step

How to restore a window!

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Step 1

Prepare your old window

Taking down, marking and working on the sash

  • Always use protective gloves and safety glasses when handling glass.
  • Check all fittings to see which ones still work, which need to be repaired and which need to be replaced.
  • Are there any uneven surfaces or irregularities on the sash? Repair any irregularities immediately or mark them for repair once the window has been taken down.
  • Mark hinges, sashes and windows before removing. Glass and sash frames are unique and should be kept together the same way they were when mounted in the wall. Write down where each piece is located with respect to the entire window and how each piece fits together. Mark which pieces belong to which window, as well as which direction each side faces (inside or outside).
  • Disassemble the window and lay on a flat surface. We recommend laying some kind of protective paper or cardboard underneath the window to collect any dirt and glass chips.
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SH Cobra Window Restoration

Step 2

Heat and scrape off old paint

  • Use Speedheater’s paint scrapers and heating system to soften and scrape off old and peeling paint and putty.
  • The easiest way to soften paint and putty is to use infrared light before you start scraping. That way, the paint is heated from the inside, and the infrared technology never lets the glass and wood get hot enough to get damaged. We recommend our Speedheater Cobra or Speedheater Rapid Slim to ensure the paint removal process is as easy, non-toxic and gentle as possible. The Speedheater Cobra is perfect for smaller surfaces, while the Speedheater Rapid Slim is great for covering larger surfaces in one go.
  • Remove the now softened painted using the right paint scraper that fits the profiles of your window sash. For most windows, we recommend using a boomerang scraper which features different profiles on different sides. You’ll achieve the best results by dragging the paint scraper towards you, while applying light pressure against the wood.
  • To loosen and remove old putty from window sashes, we recommend using our putty chisel with a support wheel. Thanks to our chisel’s support wheel, you can safely remove putty without damaging the wood or windowpane. After that, remove the putty from the pane by using a putty scraper to scrape along the glass.

Watch our tutorial video below for a step-by-step walkthrough on how to go about window renvotion.

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Måla och renovera fösnter

Step 3

Paint and re-caulk the windows

  • Sand all remaining surfaces to a matte finish so that the new window paint adheres properly.
  • Check the quality of the wood and repair any rot damage. If any of the wood in the groove is dried out or gray, it’s a good idea to apply a base oil. Make sure the base oil has dried completely before caulking.
  • Check to make sure that the moisture level of the wood is below 15% before starting to paint the window.
  • Apply schellac to all grooves to prevent the wood from absorbing the oil in the putty.
  • Next, apply a coat of primer to the sashes before reassembling the window panes and fittings.
  • Apply putty along the bottom side of all the grooves. Next, place the glass pane back into the sash and gently press down, squeezing any excess putty out from behind the glass. Very carefully nail in glazing points, and protect the glass with tape. Next, choose a side and apply putty along the entire length of the groove. Once the putty has been applied, angle the putty knife towards the corner and drag the knife down along the pane, applying steady pressure to even out and pack the putty in place. Repeat this step on every side of the window pane. Let the putty dry completely before painting.
  • Check the frames, trims and windowsills, scrape and paint as needed.

Tutorial - how to restore windows

An IR light reduces the risk of damaging surfaces

Window restoration requires patience and precision, but our tools make the restoration process efficient and reduce the risk of damaging the glass and wood surfaces. Using only a scraper is unecessarily arduous and runs the risk of marring and damaging the surface. In many cases, old windows have beautiful hand-blown glass that is fragile and requires careful handling. Our infrared technology is specially engineered to work at lower temperatures, which reduces the risk of damaging both the glass and surface.

Versatile tools that remove paint and putty

With Speedheater, you can quickly soften and remove putty, peeling paint and mold, as well as dry out any moisture trapped in the window sash. In other words, our Speedheater is an all-in-one tool that lets you work efficiently! A tool for every step of the window restoration process. Our products let you gently remove paint all the way down to the surface in just a few seconds. The final product of any painting project always depends on the base layer of paint. Once the paint has warmed up and softened, it becomes easy to scrape off without damaging the surface.

Start repainting and caulking right away without waiting

In just a few minutes, you’ll have a clean and paintable surface. Thanks to our unique technology, your surface will be dry and cool enough after the treatment to start repainting immediately – no waiting required!

Environmentally friendly and durable technology for window restoration

Using infrared technology to remove paint is gentle on both you and the environment. With our products, there’s no need to handle any chemicals or endanger yourself or the environment. Our IR technology ensures non-toxic paint removal. As if that wasn’t enough, our products are designed with long-term quality and durability in mind, meaning our products will stay with you for many renovation projects to come.

$399,00

Contact us to get advice personalized to your needs

Speedheater is a company that develops, manufactures and sells products and system solutions for putty, varnish and paint removal. We are a company that strives at every stage to facilitate and streamline our method for paint removal. The Speedheater IR System is a method that is more environmentally friendly, safer and more affordable than all other methods for removing paint. Feel free to get in touch for a free quote on our unbeatable method for heating and removing paint from exteriors, boats, furniture and cars.

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