Southeastern Pennsylvania’s #1 Replacement Window Contractor

If the windows in your Bucks, Chester, Delaware, or Montgomery county home are more than 10 years old, include only single-pane glass, or are builder-grade windows, then they could be costing you significant amounts of money every month. At MHx Designs, we install replacement windows that are specifically designed to provide maximum energy efficiency, improve the look of your home, and increase its value without breaking the bank.

Energy-Efficient Savings

Upgrade your home’s curb appeal while lowering your utility bill with maintenance-free, energy-efficient replacement windows installed by MHx Designs.

Affordable Window Solutions

With replacement pocket windows, we can install them into your pre-existing window frames without damaging the wall, window trim, or siding, which saves you time and money.


Hover e360 3D System transforms smartphone photos of your home into a fully measured, customizable 3D model so we can estimate a project confidently while eliminating the margin of error in manual measurement.


Window Manufacturers


Window Materials


Window Styles

  • Had an emergency roofing issue. Jason came out, quoted a fair price, helped with the financing & scheduled me within the week. Great crew, excellent workmanship and prompt & thorough cleanup daily. Wouldn't hesitate to use them again for all... read more

    Steven G. Avatar
    Steven G.

    I want to thank MH Exteriors for a wonderful job they did on my roof I won the free roof giveaway they were very clean they answered all my questions they did everything a great business would do I recommend... read more

    Raymond O. Avatar
    Raymond O.

    MH Exterior Remodeling demonstrated total professionalism, as well as impeccable drive and dedication during their work with our roof, shutters and skylights. Their skill and knowledge was on display throughout the course of our project and ultimately produced a... read more

    Steve O. Avatar
    Steve O.
  • Thank you MHx designa for a Great experience in replacing my Roof. Steve Was Present and available throughout the process. I Will come back To MHx designs for future Projects and recommend The my family and Friends.

    LW Avatar

    Our roof was in a bad condition and when the storm hit us our shingles were all falling apart. So i found MHX design on google and i just called them. Steve from MHX design called me right away and... read more

    Bo K. Avatar
    Bo K.

    MHX Designs recently completed a project for my home. My roof was replaced and the stucco on my entire home was remediated. I had contacted many other contractors to get estimates for this work. MHX Designs came... read more

    Anupama H. Avatar
    Anupama H.
  • Had to have a new roof installed, MHx is a fantastic group to work with!! Responsive, thorough and excellent work. Highly recommended and will definitely call for future projects!

    Kristy M. Avatar
    Kristy M.

    Very happy to have chosen MHx Design for my new roof. Great price, thorough job, attention to detail and the extent to which they go for Customer Delight. None of the others who quoted me included installation of the ice... read more

    Ronnie M. Avatar
    Ronnie M.

    Great experience with MHx Designs! From the first meeting to the completion of our new roof, they were transparent, quick to respond, and allowed us to relax about the entire project. The work team was great, completing the job in... read more

    Julie J. Avatar
    Julie J.
Energy-efficient replacement windows

Replacement Pocket vs. Full-Frame Windows

Replacement windows are available as pocket or full-frame windows and are designed so that the installer does not have to remove any exterior materials of a home including the siding and exterior cladding. Pocket replacement windows are installed into a pre-existing window frame from the inside of the home whereas full-frame replacement windows completely replace the window frame and will adequately flash the opening.

Why Replacement Windows from MHx?

  • Energy Efficiency. Combining advanced materials with modern manufacturing techniques, our windows keep your home warmer in the winter and cooler in the summer.
  • Low Maintenance. Our windows are made of long-lasting materials that retain their shape, color, and strength, and never need to be scraped or painted.
  • Easy Cleaning Access. We install replacement windows featuring tilt-in sashes for convenient cleaning, both inside and out.
  • Improved Curb Appeal. An expansive glass area and an attractively finished frame make our windows a beautiful new addition to your home.

Your Best Choice for Replacement Windows

Whether you live in Bucks, Chester, Delaware, or Montgomery County, MHx Designs is the area’s #1 replacement window expert. Contact us for a free estimate today by calling (888) 944-6493 or completing our online quote request form.

Check out some of our completed window projects.