Apex Timber Buildings

Garden Rooms, Sheds and Summerhouses Teesside North Yorkshire

Interior & Insulation

Depending on the type of building you have chosen and it’s intended purpose, you might want to consider installing insulation and or lining.


Insulation will help to keep your building cool in the summer and warm in the winter. We use self extinguishing polystyrene sheets are used to insulate your building in both 25 and 50mm thickness.

Note: If you choose to insulate your garden room with a metallic faced insulation then you may find your mobile telephone or wireless internet signal might be weakened.

Lining your timber building

Lining your building gives your building a more finished appearance as well as hiding any insulation or wiring you may have chosen to install. The type of lining you choose depends on it’s use or how you want it to appear.

Vox wall panelling

100% waterproof, easy to clean and available in a wide selection of contemporary and traditional finishes.

6mm WBP Ply board

WBP (water & boil proof) ply board is a very robust material ideal for lining sheds, workshops, play houses and animal shelters.

T&G boards

Kiln dried tongue and groove boarding provides a highly attractive finish for the inside of a summerhouse, garden room or home office. extending the beauty of your timber building to the inside. t&g boards can be left natural, stained or painted to suit your individual taste.


If you want your garden room to have a more homely appearance you may want to consider installing plasterboard with a skimmed finish, which can then be painted or decorated.

Utilities can add greater options fro your garden build and it's intended use.
Protecting your building is the secret to a long life for anything constructed of wood.
All our buildings require a solid level base, to ensure that your finished building is both properly supported and elevated to provide the protection from the weather
Adding gutters to your building to control where your water goes or even just to store it up for use when watering your garden.

Call 01642 612016 to get a quote

or complete the form on our contact page to arrange a call back.

Kim Wright
Kim Wright
15. August, 2022.
We cannot recommend Apex enough! Steve was very helpful, he understood straight away what we wanted & designed a lean too for storage purposes together with a gate to access rear garden that more than met our expectations. Very pleased with the install and the team - who were all polite, tidy workers. If you are considering a build then look no further!
Susan Wilkin
Susan Wilkin
20. July, 2022.
We are delighted with our beautiful corner summer house. The workmanship is excellent and nothing was too much trouble for Steve's very polite and hard working team. Great care was taken when erecting the structure so as to avoid damage to herbaceous border. First class service and would highly recommend.
Peter Boydell
Peter Boydell
18. January, 2022.
These guys do a really good job at building their summer houses. We had ours in the summer after a long wait due to the popularity of these buildings during the shutdown. However the pre and post Customer Service is shocking. Before the build we seemed to be chasing them for information and now, post build, we have a window that needs changing. Two months ago they said it would be changed but I have heard nothing since their first e mail declaring this and I have sent 2 e mails since asking for an update. No use phoning as they do not answer. Its only a small window but why should I have the hassle and cost 3 months into the lifetime of the building? One month later and they turned up and did it. Think they were short staffed on the admin side a d that has been sorted. It does look great in the garden
Mike Onfreeserve
Mike Onfreeserve
3. September, 2021.
We have a summerhouse from Apex and it is superb. We had a hand in the design, inasmuch as the height was increased for us because we are tall and we had the windows to fit our blinds and a couple of extra landscape windows included. We opted for insulation and boarding out and it is pretty toasty. My plan was to put in a log burning stove and we had a hole cut for the flue. It was erected quickly and tidily. I was left to sort out my wiring and sockets and the guys came back to put the insulation in and then fully board the walls and ceiling. Add WiFi and a telly and it is a very nice relaxing space. We thoroughly recommend the company. They are attentive and very skilled at what they do. I echo one of the other comments which is that they make some of the best timber buildings you will see. We are delighted. Kris and Mike, New Marske
Alan Moss
Alan Moss
1. October, 2020.
Knowledgeable and helpful.
David Stinton
David Stinton
30. July, 2020.
We wanted a bespoke shed/blacksmiths workshop and that is what we got. We love our workshop, it did have a small problem which was quickly solved and now we are enjoying it. THANK YOU!