All installers are not the same
01325 720 000
Hurworth Grange, 41 Hurworth Road, Hurworth Place, Darlington, DL2 2BN

Doors - Composite Doors, Patio Doors, Stable Doors and many more..

Guardian Conservatory Warm Roof Replacement - save money on your gas - electricity bills this winter

Super Roof by Oaktree - with Active Roof Temperature Control, Bright Ideas For Your New Conservatory Roof

Welcome to Oaktree


Oaktree is a leading supplier and installer of PVC windows, conservatories and roofing solutions in north east England. As a local business for local people, we aim to offer a wide range of high quality products at attractive prices and, along the way, have fun! We have spent many years developing a company that focuses strongly on the customer and is committed to providing both first class products and first class services. 

The products that are available from Oaktree

PVC windows - Great views can be enjoyed with more comfort, thanks to windows including aluminium, cream laminated, vertical sliding, and tilt and turn types. 

Doors - including residential, patio, French and high security doors. 

Conservatories - Our choice includes traditional Victorian and Edwardian designs, plus the much more modern Sun Lounge type. Enjoy great versatility with a conservatory from Oaktree. 

Roofing solutions - including the Guardian Conservatory Warm Roof Replacement, Glass Reinforced Plastic and Oaktree Super Roof solutions. 

And more... - including canopies, glass and porches

We serve Durham, Darlington, Bishop Auckland, North Yorkshire and Cleveland

We work out of a base in Darlington, and it is from here that we can easily travel to a wide variety of homes in north east England to supply and install products that can make life much more enjoyable for the people who live in these homes. 

For more information call 01325 720 000 and speak to a friendly member of the Oaktree team. 

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Winter proof your home
Large range of colours
Energy rated
Checkatrade information for Oaktree Windows Ltd

2017 (3)

2016 (1)

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Customer Testimonials

Thanks to everyone for a great job. We're delighted.”

Mr. & Mrs. Booth

Competitive price excellent product and workmanship. Company boss involved from start to finish. Highly recommended.”

Mr Hunter

New windows, conservatory roof, new utility "Reliable, clean, quick and excellent follow up service"”

Mrs Davies

"Front door designed to my requirements and fitted. Excellent from the initial quotation and design to the fitting, fabulous friendly service, very professional company"”

Mrs Crawford - Stockton on Tees

I would very much appreciate it if you could pass on my thanks to everyone, from Neville in the 1st instance for his advice, guidance and expertise to the fitters who were amazing. The windows look fabulous, the patio doors look fantastic and the bi-fold doors are stunning. Great job from start to finish, thank you.”

Miss J. Lowes

Great windows for a sensible price clean workers recommend anytime”

Mr M. Young - Eaglescliffe

Fantastic job, work is super a really good job.”

B Hope Chester-le-Street

Great job from start to finish, fitters are a credit to the company. They even had there own hoover to clean up after! ”

Mr.G.Hall - Darlington

Good professional job! The windows look great”

Mr R. Evans

Fantastic windows and service, I highly recommend Oaktree for your replacement windows, Doors and conservatories.”

Mr N. Campelle

Such a pleasant building experience. The workmen were very efficient, polite and hard working. My windows look fantastic.”

Mr C. Eastwood - Newcastle Upon Tyne