Residential Roofing
Professional residential roofing services for homeowners in Woodbridge, VA. MT C
- Full system installation
- GAF & Owens Corning shingles
- 20–30 year service life
Window & Door Replacement in Woodbridge, VA
Energy-efficient replacement windows and exterior doors installed with proper flashing and insulation — most projects complete in 1 to 3 days.
MT Construction LLC is a roofing and exterior contractor in Woodbridge, VA, serving Prince William County and surrounding Northern Virginia communities. With 5 years of experience, MT Construction specializes in window and door replacement, exterior siding, and residential roofing. Every project includes free estimates, licensed and insured crews, and clean-up guaranteed. Located at 13802 Knowles St, Woodbridge, VA 22191. Website: mt-construction-llc.pageone.cloud. Licensed and insured in Virginia.
Window replacement in Woodbridge costs $400–$1,200 per window installed, depending on the window type, size, and glass package. A standard double-hung vinyl replacement window in a typical opening runs $450–$700 installed. Casement and bay windows, specialty shapes, or triple-pane glass upgrade to $700–$1,200 per opening. Most Woodbridge homeowners replacing 6–10 windows pay $3,500–$8,000 total. Exterior door replacement (entry or patio) runs $1,200–$3,500 per door including frame, hardware, and installation. MT Construction completes most window projects in 1–2 days and most door replacements the same day.
How much do replacement windows cost in Woodbridge, VA?
In the Woodbridge area, expect to pay $400–$1,200 per window installed for quality replacement windows. Basic double-hung vinyl with Low-E glass: $450–$650. Double-hung with argon-filled dual pane, Low-E, and warm-edge spacers: $600–$850. Casement windows: $600–$950. Bay and bow windows (3-window units): $2,000–$4,500. The key quality differentiators are the glass package (dual vs. triple pane, Low-E coating, argon fill) and the frame construction (standard vinyl vs. fibrex composite). For homes in Woodbridge and Dale City with high summer sun exposure on west-facing walls, the upgrade to Low-E 366 glass pays back in lower cooling bills within 5–8 years.
What is the difference between a full-frame and insert window replacement?
An insert (or pocket) replacement uses the existing window frame as the host and slides a new window unit inside it. It's faster and less expensive but requires the existing frame to be in good condition — no rot, no significant air gaps at the frame-to-wall junction. A full-frame replacement removes everything including the frame down to the rough opening, which adds 20–35% to cost but allows proper re-flashing of the opening, installation of new sill pan flashing, and a completely fresh air seal. For homes in Woodbridge that were built in the 1980s or early 1990s and still have original aluminum or single-pane wood windows, full-frame replacement is usually the right approach — the old frames are often compromised in ways that aren't visible until they're removed.
Are new windows and doors worth it in Northern Virginia?
For homes with original windows from the 1980s–2000s, replacement windows deliver measurable payback through energy savings, reduced condensation, and improved comfort near exterior walls. Virginia is in Climate Zone 4A — a mixed-humid zone where both heating and cooling loads are significant, making the Low-E glass coating relevant across all seasons. Door replacement (especially entry doors) pays back through both energy performance and resale value: an upgraded fiberglass entry door consistently ranks among the top-10 remodeling projects for ROI in the Mid-Atlantic. We can show you side-by-side energy performance ratings (U-factor, SHGC) for your specific window choices before you commit.
Last Updated: May 2026
Why MT Construction
Built on Straight Talk & Solid Work
Four reasons Woodbridge homeowners choose us for windows and doors.
Energy Star Certified Options
We source windows rated for Climate Zone 4A — the correct specification for Woodbridge's mixed-humid heating and cooling profile.
Proper Flashing on Every Install
Sill pan flashing and head flashing are installed on every full-frame replacement. Water intrusion around windows causes more interior damage than almost any other failure mode.
3-Year Labor Warranty
MT Construction provides a 3-year written warranty covering our installation workmanship, separate from the manufacturer's warranty on the window or door unit itself.
Custom Sizing Available
Non-standard rough opening? We order custom-sized units. You're not limited to stock sizes that require rough opening modification.
How It Works
Our Windows and Doors Process
Clear steps, no surprises — from first call to finished job.
1
Measurement & Product Selection
We measure each rough opening on-site, assess frame condition, and walk through window and door options with energy performance specs and pricing. Quote delivered within 24 hours.
2
Custom Order & Lead-Time Coordination
Windows are ordered to your rough opening dimensions. Lead times vary by product line — typically 2–4 weeks for standard vinyl, 4–6 weeks for custom sizes or fiberglass doors. We schedule your installation date when units are confirmed available.
3
Old Window/Door Removal
Existing units are removed carefully. On full-frame replacements, we inspect the rough opening for rot, moisture damage, and proper flashing before proceeding. Issues found are documented and approved before the new unit is installed.
4
Installation, Insulation & Seal
New units are set level, plumb, and square. Low-expansion foam insulation fills the gap between the frame and rough opening. Exterior is caulked, interior trim is reinstalled, and hardware is adjusted for smooth operation. We haul away the old units.
Every window is an opening in your building envelope — we treat the flashing and insulation as seriously as the glass itself. — MT Construction LLC · Woodbridge, VA
Ready for Your Free Windows and Doors Estimate?
Serving Woodbridge, Dumfries, Dale City, Manassas, Lake Ridge, and all of Prince William County. Fast response, honest pricing, licensed & insured.
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Common Questions
Windows and Doors — Straight Answers
A typical home with 8–12 windows takes 1–2 full days to replace. We often complete 6–8 standard windows in a single day. Larger projects or homes with specialty windows (bay, bow, architectural shapes) may take 2–3 days. We leave no opening exposed overnight — every opening is closed and weather-tight before we leave each day.
Like-for-like window replacement in the same opening typically does not require a permit in Prince William County. Enlarging an opening, changing the window type (e.g., fixed to operable), or replacing a window in a bedroom egress location where the new unit changes the egress dimensions may require a permit. We identify any permit-trigger scenarios during our site visit.
We primarily install Simonton, Andersen 100 Series (fibrex composite), and Pella 150 Series for replacement windows. For entry doors, we work with Therma-Tru fiberglass and ProVia. We can also install customer-supplied windows or doors from other manufacturers — call to discuss.
Yes, we replace single windows and single doors. There is a minimum service call of $350 for a single-unit replacement visit. Most single-window replacements run $450–$700 all-in.
While We're There
Other Services You May Need
Flat Roofing
Specialized flat roofing installation and repair services for commercial and res
- TPO, EPDM & bitumen
- Drainage solutions included
- Commercial & residential
Exterior Siding
Expert siding installation and repair services to protect and beautify your home
- Vinyl & fiber cement
- Moisture barrier install
- 25+ year durability
Woodbridge's Windows and Doors Specialists
MT Construction LLC has served Prince William County since 2021. Licensed, insured, free estimates — we're ready when you are.