Professional Window & Door Installation in Massachusetts
Upgrade your home's comfort, security, and energy efficiency with precision window and door installation from Alfa Construction.
Windows and doors are critical to your home's comfort, energy efficiency, and security. Old, drafty windows and worn-out doors let cold New England air in during winter and conditioned air out during summer — costing you hundreds in energy bills every year.
Alfa Construction Inc provides expert window and door installation across Massachusetts. We install energy-efficient double and triple-pane windows, modern entry doors, sliding patio doors, and interior doors with precise fitting that eliminates drafts and enhances your home's appearance.
Our installation process ensures airtight, weatherproof results. We properly flash and seal every opening to prevent water intrusion, insulate gaps to maximize energy savings, and align every window and door for smooth, reliable operation. The result is a more comfortable, secure, and energy-efficient home.
Common Problems We Solve
Drafty Windows
Old single-pane windows let cold air pour in during Massachusetts winters, creating uncomfortable rooms and skyrocketing heating bills.
High Energy Bills
Inefficient windows and doors can account for 25-30% of your home's heating and cooling energy loss.
Stuck or Leaking Doors
Doors that stick, won't latch, or let water seep in compromise your home's security and interior protection.
Outdated Appearance
Old windows and doors date your home's look, reducing curb appeal and resale value.
Our Windows & Doors Process
Home Assessment
We evaluate your current windows and doors, measure openings, discuss energy-efficiency options, and provide a detailed estimate.
Product Selection
We help you choose the right windows and doors based on style, energy rating, material, and budget. We work with top manufacturers.
Careful Removal
We remove old windows and doors cleanly, inspect the rough openings, and address any hidden issues like rot or water damage.
Precision Installation
New windows and doors are installed plumb, level, and square. We flash, seal, and insulate every opening for maximum performance.
Finishing & Testing
We install interior and exterior trim, test every window and door for smooth operation, and clean up completely.
Why Choose Alfa Construction
Industry Standards & Materials We Use
Every Alfa install meets manufacturer specs, ENERGY STAR efficiency standards, and Massachusetts building code. Verify each independently.
Siding Materials
We install James Hardie fiber cement (ASTM C1186 Type A Grade II rated, Class A fire rated), premium vinyl siding (ASTM D3679 certified), and authentic cedar shake on a properly fastened DuPont Tyvek HouseWrap weather-resistant barrier with Z-flashing at every penetration.
Windows & Energy
Andersen 400 Series windows with low-E glass (U-factor under 0.30, NFRC certified), ENERGY STAR qualified for the Northern climate zone. Continuous-wall EnergyShield insulation pairs with windows to deliver R-13 effective wall R-value.
License & Insurance
Massachusetts Home Improvement Contractor (HIC) license ##192348, valid through 04/2027. Verifiable through the MA Division of Professional Licensure. Full general liability and workers' compensation insurance — Certificate of Insurance issued per project.
Code Compliance
Every project pulled to the local MA State Building Code (780 CMR) with proper permits, inspections, and final sign-off. Hardie installs follow manufacturer best practices to maintain the 30-year limited transferable product warranty.
Frequently Asked Questions
How much can new windows save on energy bills?
What types of windows do you install?
How long does window replacement take?
Do you install entry doors and patio doors?
Will new windows reduce outside noise?
Customer Reviews
Windows & Doors Service Area
Windows & Doors Services Across Massachusetts
We provide professional windows & doors services in 109 cities across Massachusetts. Click your city for local details and a free estimate.
Get Your Free Windows & Doors Estimate
Contact Alfa Construction Inc today for a free estimate. Licensed & insured with 18+ years of experience serving Massachusetts homeowners.