Window and Door Installation in Western Massachusetts
Most window problems are installation problems, not window problems. A good unit installed without proper flashing, shimming and air sealing will leak, stick and cost you on heating. Westfield Builders replaces windows and exterior doors the right way: square, plumb, properly flashed and sealed, with the trim and siding put back so it looks original. One of our reviews is simply a homeowner noting we installed two windows quickly and did a quality job.

Why Install With Westfield Builders
Lower Heating Bills
Old single pane and failed double pane windows are where a Massachusetts heating bill goes. Replacement is one of the fastest paybacks in the house.
Full Frame or Insert
Insert replacements are cheaper and faster. Full frame is the right call when the frame or sill is rotted. We tell you which you are looking at.
Flashed and Sealed
Water gets in around windows, not through them. Sill pans, flashing tape and proper sealant are how the install lasts.
Doors Too
Entry doors, sliders, French doors and storm doors, including reframing an opening to change a window into a door.
What Window and Door Work Covers
Projects We Take On
How Window and Door Work Runs
Measure and Assess
We measure every opening and check for rot at the sills and jambs, so the quote reflects what is actually behind the trim.
Selection and Order
You pick units and finishes. We order and schedule around lead times so the house is not open waiting on delivery.
Install
Old units out, openings repaired where needed, new units set, flashed, insulated and sealed. Usually one opening at a time so the house stays closed up.
Trim and Cleanup
Interior and exterior trim, caulk, paint touch up, debris hauled away, and a walkthrough on every opening.
Replacing Windows or Doors?
Whether it is two windows or the whole house, we will come measure and give you a free estimate.
Related Services
Custom Home Design and Construction
Ground-up custom homes built from your plans or ours, managed start to finish.
Accessory Dwelling Unit Builds
In-law suites, garage conversions and detached ADUs under the Massachusetts by-right law.
Home Additions and Expansions
Bump-outs, second stories, sunrooms and full wing additions tied cleanly into your existing home.
