Google Reviews Interior & Exterior Door Installation
WindowFixGuru™ provides professional installation for interior, exterior, entry, patio, specialty, and commercial door systems. Customers can purchase a door through our trusted suppliers or provide their own door for professional installation.
Our focus is proper installation—accurate fit, correct frame alignment, secure anchoring, insulation, waterproofing, sealing, hardware setup, and final adjustment.
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Professional Door Installation
A quality door is only as good as its installation. Proper installation affects how smoothly the door opens and closes, how securely it locks, how well it seals, and how the complete door system performs over time.
WindowFixGuru™ installs doors according to the requirements of the specific door system and existing opening. We pay particular attention to frame position and alignment, structural support, anchoring, threshold installation, insulation, air and water sealing, weatherstripping, hardware alignment, and final operation.
For exterior doors, proper waterproofing, flashing, water management, and exterior sealing are especially important for protecting the opening from moisture and helping the complete door system perform as intended.
Two Ways to Work With WindowFixGuru™
Supply & Install
WindowFixGuru™ works with trusted door suppliers and can provide both the new door and complete professional installation.
We can coordinate the appropriate door type, size, configuration, and specifications for the project and complete the installation from preparation of the opening through final adjustment.
Installation Only
Customers are not required to purchase their doors from WindowFixGuru™.
You can purchase or provide your own door from a manufacturer, dealer, supplier, or other source, and WindowFixGuru™ can perform the professional installation.
Whether we supply the door or you provide it, our installation standards remain the same.
Get an EstimateTypes of Doors We Install
WindowFixGuru™ installs a wide range of residential and commercial door systems, including:
- Interior Doors
- Exterior / Entry Doors
- Wood Doors
- Fiberglass Doors
- Steel Doors
- Front Doors
- French Doors
- Double Doors
- Sliding / Patio Doors
- Storm Doors
- Screen Doors
- Doors with Sidelights
- Doors with Transoms
- Prehung Doors
- Custom / Specialty Doors
- Commercial Entrance Doors
Different doors require different installation methods. The installation approach is based on the door construction, frame system, hardware, existing opening, threshold, and surrounding building conditions.
Get an EstimateProper Door Installation
Professional door installation involves more than fitting a door into an opening. The opening and frame must be properly prepared and the complete system must be correctly positioned, supported, anchored, insulated, sealed, and adjusted.
Depending on the door system and existing conditions, professional installation may include:
- Proper Preparation of the Door Opening
- Correct Measurements & Fit
- Leveling & Plumbing
- Frame Alignment
- Proper Shimming
- Secure Anchoring
- Threshold Installation
- Insulation Around the Frame
- Air Sealing
- Waterproofing
- Flashing & Water Management for Exterior Doors
- Weatherstripping
- Hardware & Lock Alignment
- Exterior Sealing Where Required
- Final Door Adjustment & Operational Testing
Residential & Commercial Door Installation
WindowFixGuru™ installs doors for homes, apartments, condominiums, offices, retail spaces, commercial buildings, and other residential and commercial properties.
Projects can range from a single interior or exterior door to French and double doors, patio doors, entrance systems with sidelights or transoms, custom doors, and commercial entrance systems.
Regardless of the door type, our goal is the same: a properly fitted and installed door system that operates and seals as intended.
Get an EstimateInstallation Workmanship Warranty
WindowFixGuru™ provides a one-year warranty on our door installation workmanship.
Our workmanship includes the installation work required to properly fit, position, align, anchor, insulate, seal, and adjust the door system according to the requirements of the specific installation.
Product warranties provided by door manufacturers remain subject to the individual manufacturer’s warranty terms.
Explore Our Services to Repair, Maintain, and Improve Your Existing Windows and Doors
Window Maintenance
Professional window maintenance keeps windows operating smoothly, prevents costly problems, improves energy efficiency, and extends the lifespan of existing systems.
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Hardware Maintenance & Replacement
Professional maintenance and replacement for door handles, locks, hinges, closers, and hardware to improve security, performance, reliability, and everyday operation.
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Historical Window Repair & Maintenance
Specialized historical window repair preserves original character, restores proper operation, improves performance, and maintains the architectural integrity of older properties.
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Interior/Exterior Door Repair & Adjustments
Professional interior and exterior door repair and adjustments to correct sticking, sagging, misalignment, drafts, locking problems, and difficult everyday operation.
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Rotten Wood Repair & Replacement
Rotten wood repair restores damaged frames, sashes, sills, and trim while preserving usable components and preventing further serious structural deterioration.
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Storm Door Repair & Maintenance
Complete storm door repair and maintenance for hinges, closers, handles, screens, alignment, and seals to restore dependable operation and lasting results.
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Low-E Glass Upgrade
Low-E glass upgrades improve insulation, reduce heat transfer, block harmful UV rays, increase comfort, and enhance year-round window energy efficiency.
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Patio Door Repair & Maintenance
Reliable patio door repair and maintenance for rollers, tracks, locks, handles, alignment, and seals to improve smooth operation and overall reliability.
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Screen Repair & Replacement
Screen repair and replacement restores airflow, visibility, and protection from insects using durable materials fitted accurately to windows and doors.
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Commercial Window Service & Repair
Commercial window service keeps business properties secure, functional, and efficient through professional repairs, maintenance, and inspections.
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Window Installation
Professional window installation ensures proper fit, sealing, operation, and energy performance while improving comfort, durability, and overall property value.
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Glass Replacement
Restore safety, clarity, comfort, and energy efficiency with professional service for damaged, cracked, foggy, or broken window and door glass.
Learn moreMore Window & Door Services
Complete repair solutions for residential and commercial windows and doors.
Window Services
- Window Adjustment
- Window Recaulking & Sealing
- Window Reglazing
- Sash Repair & Restoration
- Window Mechanism Repair
- Balance Replacement
- Operator Repair
- Lock & Handle Replacement
- Weatherstripping
- Draft Repair
- Foggy Glass Replacement
- IGU Replacement
- Custom Glass Replacement
- Sidelight Glass Replacement
- Sunroom Window Repair
- Greenhouse Glass Repair
- Bay & Bow Window Repair
Door Services
Our Work
What People Say
FAQ
Can WindowFixGuru™ supply the door and install it?
Yes. WindowFixGuru™ works with trusted suppliers and can provide both the door and complete professional installation.
Can you install a door that I purchase myself?
Yes. Customers can purchase or provide their own doors, and WindowFixGuru™ can perform the professional installation. You are not required to purchase the door from us.
What types of doors do you install?
We install interior and exterior doors, entry doors, wood, fiberglass and steel doors, French and double doors, sliding and patio doors, storm and screen doors, doors with sidelights or transoms, prehung doors, custom doors, and commercial entrance doors.
Do you install doors with sidelights and transoms?
Yes. We can install applicable entrance door systems with sidelights, transoms, or both.
Do you install customer-supplied prehung doors?
Yes. WindowFixGuru™ can professionally install eligible customer-supplied prehung door systems.
What is involved in proper exterior door installation?
Depending on the door and opening, installation may include opening preparation, frame positioning and alignment, shimming, anchoring, threshold installation, insulation, air sealing, waterproofing, flashing and water management, weatherstripping, hardware alignment, exterior sealing, and final adjustment.
Do you provide a warranty on installation?
Yes. WindowFixGuru™ provides a one-year warranty on our installation workmanship.
Professional Installation for Your New Door
Whether WindowFixGuru™ supplies the door or you provide your own, our focus is proper installation — correct fit and alignment, secure anchoring, appropriate insulation and waterproofing, effective sealing, and reliable operation.
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Serving 300+ Communities
We cover Nassau County, Suffolk County, Queens County, and New Jersey, plus Upstate New York and Connecticut, including all the listed areas:
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