Trusted Supplier of Windows, Doors & Conservatories

Energy Efficient Windows & Doors throughout Barnsley, Sheffield and South Yorkshire

After 25 years manufacturing uPVC windows and doors, Patrick Tighe took the decision to start a new business venture, Eco-Thermal Design Limited. Supplying and installing high quality locally manufactured uPVC windows, entrance doors, composite doors, bi-folding doors, aluminium doors, conservatories and more.

The company has gone from strength to strength, building on its ethos of low pressure selling and high-quality installations. You can visit our wide range of energy efficient windows and doors via our showroom or you can contact a friendly member of our team for more information on booking the installation of your windows and doors.

We have a wide range of uPVC windows and doors, aluminium windows and doors and composite doors, to find a style that suits your home. Whether you’re looking for a like for like window or door replacement or you’re completing a property refurbishment and would like our help choosing a new range of windows and doors, we’ll have something to suit you. Speak to our team today about how Eco Thermal Design Ltd can supply you with your brand new windows and doors.

Penistone Showsite Opening Times

Monday, Tuesday, Thursday, Friday and Saturday 9.00 to 4.00pm
Closed Wednesday and Sunday

We are trusted, read our Reviews.

Customer Testimonials

See what some of our happy customers say about us....


Why choose us

Competitive Prices

We strive to always offer our customers competitive prices for their home renovations. With our full range of products, we have something for everyone's style and budget, from thermally efficient and reliable uPVC to high-end aluminium front doors.

Intelligent Design

We work with only the best suppliers and manufacturers in the business. This means that you get a superior quality when you come to Ecothermal Design. All our products deliver enhanced levels of thermal efficiency, home security and visual appeal.

Professional Installation

We take pride in employing our own team of highly trained and skilled in house installers. Full time members of staff who are committed to ensuring each and every window and door is fitted to the highest standards.

Tailored Builds

You won’t have to settle for pre-set designs when you come to us. All our home improvement products are made bespoke and come with a range of colour and accessory options. We can offer advice and examples to guide you through the choices and process.

Watch our Solidor Composite Door Video

door builder

Not sure which door will suit your home best?

Then build your own, with our online composite door builder tool! Change the style, colour (choose from 18), furniture and glass designs all at the click of a button.


Quick Contact

Got a quick question, need a quick quote or Book a FREE no obligation home visit, get in touch with us using this contact form. Alternatively call us on Barnsley 01226 764841 or Doncaster 01302 780838.



10 year Insurance backed warranty on all products


Call us on: 01226 764841 to find out more or

Get a quote today!