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Business Details
17 Years
experience
Trusted Windows & Doors Installer in Barnsley
Established in 2009, D&I Home Improvements has built a reputation as a trusted provider of windows, doors, and conservatories across South Yorkshire. Our founders, Dave and Ian, bring over 50 years of combined experience in the double glazing industry, ensuring every project benefits from deep expertise and a commitment to quality. We are proud to hold accreditations from FENSA, the Federation of Master Builders, and Which? Trusted Trader, reflecting our adherence to industry standards and customer satisfaction. Our 10-year warranties on windows and doors demonstrate confidence in our products' durability and performance. We prioritise eco-friendly installations, using recyclable materials like aluminium windows to support sustainable home improvements. Our team delivers tailored solutions, from composite doors to innovative hup! conservatories, ensuring every client receives a service that combines technical excellence with personal care.

With showrooms in Barnsley and serving areas including Sheffield, Rotherham, and Leeds, we offer competitive pricing without compromising on quality. Our dedication to transparency, no-pressure sales, and aftercare has earned us a 4.9/5 rating from satisfied customers. We invest in the latest energy-efficient technologies, including triple glazing and thermal-efficient designs, to help homeowners reduce energy costs. From initial consultation to final installation, our approach remains centred on listening to client needs and delivering results that exceed expectations.
Services
Composite Doors Aluminium Windows Conservatories Garden Rooms Double Glazing
Details
  • Year established: 2009
Highlights and features
  • We have over 50 years of combined experience in double glazing installations.
  • Our products come with 10-year warranties for complete peace of mind.
  • We use eco-friendly, recyclable materials in all our installations.
  • Our team serves Barnsley, Sheffield, Rotherham, and surrounding areas.
  • We hold accreditations from FENSA and the Federation of Master Builders.
Associations and certifications
  • FENSA
  • Federation of Master Builders
  • Which? Trusted Trader
What people say
Excellent service No fuss, no mess Brilliant job Highly recommend Accommodating and friendly
Services
Composite Doors
Our composite doors combine strength and style, featuring reinforced frames and weather-resistant materials. Designed to enhance home security while offering thermal efficiency, these doors come in various finishes and colours. Each installation includes precise measurements and expert fitting to ensure long-term durability.
Aluminium Windows
We supply and install slimline aluminium windows that maximise natural light while maintaining energy efficiency. Available in casement or flush designs, our windows feature advanced glazing options to reduce heat loss. The powder-coated finish ensures lasting protection against corrosion.
Conservatories
Create additional living space with our custom-built conservatories, available in Victorian, Edwardian, or modern styles. We use lightweight tiled roofs and energy-efficient glazing to ensure year-round comfort. Each project includes structural calculations and building regulation compliance.
Garden Rooms
Our insulated garden rooms provide versatile spaces for work or relaxation. Constructed with durable materials, these rooms feature full electrical integration and climate control options. The modular design allows rapid installation with minimal disruption to your property.
Double Glazing
Upgrade to double-glazed units that reduce noise and heat loss. We offer uPVC, timber, and aluminium options with A-rated energy performance. All installations include draught-proofing and seal checks to maximise thermal efficiency and lower utility bills.
People
Dave
Co-Owner
With over 25 years in the double glazing industry, Dave oversees installations and quality control. His hands-on approach ensures every project meets strict standards while maintaining customer-focused service.
Ian
Co-Owner
Ian manages product sourcing and technical specifications, leveraging 25+ years of fabrication expertise. He works directly with homeowners to recommend solutions that balance aesthetics and functionality.
Questions
Do you offer free quotes for window and door installations?
Yes, use our online quoting engine for instant prices or contact us for bespoke projects.
Are your products energy efficient?
All installations meet current building regulations, with options for triple glazing and A-rated windows.
What areas do you serve?
We cover Barnsley, Sheffield, Rotherham, Doncaster, Huddersfield, and surrounding South Yorkshire areas.
Do you provide after-sales support?
Yes, our 10-year warranties include post-installation assistance and maintenance advice.
Can you help with financing options?
We offer flexible payment plans through authorised lenders for qualifying customers.
Are your installers accredited?
Our team holds certifications from FENSA, FMB, and Which? Trusted Trader standards.