When homeowners step up from builder-grade windows to a premium line, two names come up again and again. The choice between Andersen 400 Series vs Pella Reserve windows in Lancaster County is a comparison between two of the most respected window makers in the country, and both build a genuinely excellent product. The differences are in construction details, glass options, the look of the finished window, and how each installs. As the people who actually put these in walls, we see the practical side of that decision in a way a showroom does not show you.
D&E Mako Renovation installs both lines throughout Lancaster County, on homes in Ephrata, Lititz, Manheim, and beyond. This guide compares them from an installer’s perspective: how they are built, how they perform on energy, and what to weigh when you are choosing windows you will live with for decades.

What this guide covers
- How the Andersen 400 Series and Pella Reserve are constructed
- The differences in materials and finish
- How each performs on energy efficiency
- What installation considerations matter for each
- How to decide which line fits your home
Andersen 400 Series vs Pella Reserve windows in Lancaster: construction
Both are premium lines, but they are positioned a little differently, and that shows in how they are built.
The Andersen 400 Series
The Andersen 400 Series is a long-standing, proven line built around a wood interior with a low-maintenance exterior cladding. It has been one of the most popular premium window choices in the country for years, which means broad availability, a deep track record, and easy access to parts and matching units down the road. You can explore the line at Andersen Windows. It hits a sweet spot of quality, reliability, and value.
The Pella Reserve line
Pella Reserve sits at the higher, more architectural end of Pella’s offerings. It emphasizes authentic, traditional and contemporary styling with fine detailing, making it a favorite for historic-look renovations and high-end builds where the window is meant to be a design feature. It leans toward the homeowner who wants a specific architectural look and is willing to invest in the details to get it.
Energy performance and what it means here
In a climate with real winters and humid summers, window energy performance is not a luxury feature. It is comfort and operating cost, year after year.
Glass and coatings
Both lines offer high-performance insulated glass with low-emissivity coatings and gas fills that cut heat transfer. The specific glass package you choose matters more than the brand badge. For a Pennsylvania home, you want a configuration tuned for our heating-dominated climate, and both makers offer one.
Frame and seal performance
The frame construction and weatherstripping determine how well a window resists drafts and air leakage over time. Both lines are engineered for tight, durable seals. Look for ENERGY STAR qualified configurations, and you can check what that rating means through ENERGY STAR.
Real-world performance depends on install
Here is the part the brochures skip: even the best window underperforms if it is installed poorly. Proper flashing, sealing, and insulation around the unit are what make the rated performance real. This is exactly where our work earns its keep.

Installation and choosing the right line
From the installer’s side, both lines go in well when handled correctly, and the decision usually comes down to fit, look, and priorities.
Installation considerations
Whether you are doing a straightforward replacement or a full-frame install during a larger renovation changes what each window needs. New construction and dormer additions, for example, often call for full-frame units integrated with new flashing, which is part of our window and door installation service. The right install method protects the window’s performance and your walls.
How to decide
Choose the Andersen 400 Series if you want a proven, widely available premium window with excellent value and easy long-term support. Lean toward Pella Reserve if you want top-tier architectural detailing for a historic or high-end look and the window is meant to be a centerpiece. If windows are part of a bigger project, our custom construction and renovation service ties it all together, and our work on jobs like the renovation projects near Terre Hill shows how window choices fit into a whole-home result.
Where D&E Mako Renovation works across Lancaster County
Lancaster County service area
- Ephrata, PA — our home base, installing both lines on homes of every style
- Lititz, PA — historic homes where architectural windows fit the character
- Manheim, PA — homes replacing tired builder-grade windows
- New Holland, PA — established neighborhoods upgrading for comfort and efficiency
- Akron, PA — borough homes choosing premium replacements
- Mount Joy, PA — houses pairing new windows with larger renovations
If your project is outside these areas, get in touch through our contact page and we will let you know whether it falls within our range.
The short version on Andersen versus Pella
The Andersen 400 Series vs Pella Reserve windows in Lancaster decision is a choice between two excellent premium lines. The Andersen 400 Series offers proven quality, broad availability, and strong value. Pella Reserve offers higher-end architectural detailing for homeowners who want the window to be a design feature. Both deliver the energy performance our climate demands.
Whichever you choose, the installation is what turns a great window into a great-performing window. Match the line to your home’s style and your priorities, insist on proper flashing and sealing, and you will have windows that look right and work right for decades.
Comparing premium windows for your home? We will help you match the right line to your project.






