Replacement Windows
Elegant, Secure, Energy Efficient.
Choose from our extensive range of UPVC or Aluminium windows; all of our windows are A-rated for energy efficiency, we use only the most secure of locking systems for total peace of mind.
We cover the whole of Hertfordshire and surrounding areas.
Choose from our wide range of replacement windows
UPVC Casement Windows
We specialize in constructing top-quality commercial buildings that meet the needs of our clients. Our team is equipped to handle any size project, delivering exceptional results every time.
UPVC Flush Sash
The flush sash window is perfect for the replacement of timber windows, offering equal sightlines that suit both modern and traditional homes.
UPVC Sliding Sash
Aluminium Tilt & Turn
Beautiful sliding sash windows are the go-to with choice when replacing traditional timber sliding sash windows, a stunning addition for traditional homes.
Aluminium Tilt & Turn
Aluminium Tilt & Turn
Aluminium Tilt & Turn
Our sleek aluminium Tilt & Turn windows are ideal for more modern, contemporary homes. Opening inward, they are perfect for windy locations.
Aluminium Flush Sash
Aluminium Tilt & Turn
Aluminium Flush Sash
Beautiful flush sash aluminium replacement windows fit perfectly on almost any home, equal sightlines and slim frames look great inside and out.
Aluminium Casement
Aluminium Tilt & Turn
Aluminium Flush Sash
Our most common aluminium go-to window system, perfect for most replacement windows and doors and the most cost effective aluminium option.
Colours, Grains & Hardware.
Colours & Finishes
Colours & Finishes
Colours & Finishes
Our windows and doors come in a wide range of colours and finishes, so no matter what you are looking for to complement your home, we have a range to cater for that perfect home improvement look.
Hardware
Colours & Finishes
Colours & Finishes
with an extensive range of handle styles and finishes, you will be spoilt for choice. get in touch today for a free no obligation quote for your replacement windows.
Make A Statement
Replacement Entrance Doors Hertfordshire
Choose from out extensive range of UPVC or Solid composite entrance doors, from traditional style stable doors to modern, contemporary doors and side-screens, enhanced high security locking systems, endless glass designs and colour finishes, make a statement with Harpenden Modular Construction door-sets.
Energy Efficient - A Rated As Standard
Green Building Practices
We are committed to sustainable building practices and can help you create an environmentally friendly home or building by installing our A-rated window and door systems. Our team is knowledgeable about the latest green building techniques, products and materials.
Contact Us
The Experienced Professionals
We love our customers, so feel free to drop us a message
Harpenden Modular Construction
Hours
Open today | 09:00 – 17:00 |
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