Business Details
Expert Window and Door Installations in Derby
Capital Windows Derby is a trusted provider of high-quality window and door installations, conservatory roof replacements, and home extensions across Derbyshire and surrounding areas. With over 100 years of combined experience, our team of certified professionals adheres to rigorous industry standards, including FENSA, Gas Safe, and NIC EIC accreditations. We specialise in energy-efficient solutions such as Veka Storm casement windows, SupaLite conservatory roofs, and Origin aluminium bi-folding doors, ensuring durability and aesthetic appeal.Our commitment to customer satisfaction is reflected in our tailored approach, offering expert project management, competitive pricing, and a 20-year guarantee on select products. Serving homeowners and developers alike, we prioritise innovation, security, and thermal performance to enhance property value and usability. Our partnerships with leading brands like VELUX and Origin underscore our dedication to delivering cutting-edge solutions that meet both modern and traditional architectural needs.
Services
Window Installations
Door Replacements
Conservatory Roofs
Home Extensions
Bi-Folding Doors
Highlights and features
- Over 100 years of combined experience in home improvements
- FENSA, Gas Safe, and NIC EIC accredited professionals
- Energy savings of up to 50% with double-glazed units
- Tailored solutions for Derbyshire's historic and modern properties
- 20-year guarantees on premium products like Origin bi-folding doors
Associations and certifications
- FENSA
- Gas Safe
- NIC EIC
Services
Window Installations
We supply and install Veka Storm casement windows, offering energy-efficient, secure solutions with flush-fitting designs. Our FENSA-accredited team ensures precise fitting for modern and heritage properties across Derbyshire. Windows reduce energy bills by up to 50% while enhancing aesthetics and property value.
Conservatory Roofs
Guardian Warm Roof conversions replace glass or polycarbonate roofs with insulated solid systems, improving thermal efficiency and usability. Partnering with VELUX, we deliver year-round comfort and added property value through vaulted ceilings and LED lighting.
Home Extensions
From loft conversions to full extensions, our project-managed services cater to Grade 1-listed buildings and modern homes. We integrate joinery, plumbing, and electrical work, adhering to British Standards and local planning requirements across Derbyshire and Nottingham.
Door Replacements
We install GRP doors with reinforced insulation and anti-burglary locks, achieving British Standard security. Options include oak, rosewood, and coloured finishes, combining durability with customised aesthetics for enhanced home protection.
Bi-Folding Doors
Origin OB-49 bi-folding doors feature slimline designs, 1.2 U-value thermal efficiency, and 8-point locking systems. Backed by a 20-year guarantee, these Secured by Design doors maximise natural light while ensuring strength and aesthetic appeal for modern homes.
Questions
What areas do you serve?
We operate within a 25-mile radius of Derby, covering Derbyshire, Nottingham, and Burton.
Are your installers certified?
Yes, our team holds FENSA, Gas Safe, and NIC EIC accreditations for all trades.
Do you offer guarantees?
We provide a 20-year guarantee on Origin bi-folding doors and select products.
Can you replace conservatory roofs?
Yes, we install Guardian Warm Roofs with VELUX partnerships for insulated, year-round use.
What window styles are available?
We offer Veka Storm casement windows and Residence 9 designs for traditional and modern homes.
