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Architectural Joinery

With decades of experience in structural, architectural and bespoke joinery, we offer a wide range of services ranging from staircases, built-in media units and wardrobes, doors, windows and unique furniture pieces.

Our experience and knowledge is second to none and has equipped us to tackle any and all types of bespoke joinery projects.

Whatever your vision, we work to your requirements and offer our support and expertise every step of the way.

As a comprehensive and multi-skilled team, we cover all bases in terms of supply, manufacture and installation, leaving you with a result to be admired.

Architectural Joinery Services Perth

With over 120 years of experience between us, our team at Firmus Group are experts in all things carpentry.

With decades of experience in structural and architectural joinery, we offer a wide range of services, from staircases, built-in media units and wardrobes, doors, windows, and unique furniture pieces. Our experience and knowledge are second to none and allow us to tackle any and all types of bespoke joinery projects.

Whatever your vision, we will work to your requirements to ensure it comes to life. As a comprehensive and multi-skilled team, we cover all bases in terms of supply, manufacture and installation, leaving you with a result to be admired.

Create bespoke furniture with our expert carpentry services

Whether you're looking to make significant structural changes, create something unique to you and your tastes, or simply integrate storage or extra space into your home, Firmus Group can make it happen.

Whatever the nature of your joinery and carpentry project, our team of skilled professionals will walk you through the whole process from start to finish. From initial discussions to manufacture and installation, Firmus provides a full design and technical service for both modern solutions and traditional period joinery.

We're skilled in the design, manufacture and installation of:

  • Casement windows
  • Sash windows
  • Doors
  • Staircases
  • Storage solutions
  • Furniture
  • Fittings and moulds
  • Kitchen/bathroom installation and design
  • Renovations
  • And more!

With a keen eye for detail, the highest quality materials, great customer service and the skills to deliver world-class solutions, our small operation has garnered a fantastic reputation that regularly sees customers throughout Scotland coming back to us time and time again for their joinery and carpentry needs.

Joinery services that build the future and restore the past

Our motto is to "build the future, restore the past". This means that we have particular interest in restoration and building authentic period pieces that are stylish, authentic and functional for today's world.

If, for example, you're working with a listed building from a specific period, we will endeavour to refurbish an aesthetic that is consistent with the rest of the space, whilst still using the finest quality, modern materials to improve heat retention, aesthetics and structural stability.

We are always happy to help you maintain the historical style and character of your property in compliance with statutory regulations and Historic Scotland's requirements. Using a mixture of both traditional joinery methods and modern technologies, you won't find a company more dedicated to preserving the authenticity of your building.

Our bespoke joinery processes

As experts in architectural joinery, we have developed a three-phase process to give our customers the very best bespoke joinery service possible.

Below you can find more information on each part of our unique approach to architectural joinery;


The interiors of your home make a big difference to your quality of life. A space that's fit for purpose, pleasurable to relax in and aesthetically aligned with your vision can truly change your life for the better.

That's why we offer a comprehensive architectural joinery and design service to our clients in Scotland. We enable you to have something truly unique built and designed to your tastes. A piece of furniture that caters to your vision, all the way down to the fine details.

Whenever it comes to designing bespoke joinery pieces, we take our time and consider every aspect of the project. We will always have a detailed and thorough consultation with you, to truly get to know and understand how you see the commissioned piece and how it will fit within your space. We can incorporate the solution into a fully designed scheme or supply them as unique one-off pieces.


We use only the highest quality materials when fabricating your project, and are passionate about durable and sustainable solutions.

With many of our products being created in our in-house workshop or with trusted companies we've worked with for years, you can rest assured that your project is in good hands with Firmus Group.


As multi-skilled craftspeople, our team are qualified in many disciplines and so have the ability to install and finish your solution, ensuring everything is exactly as it should be.

Our relationship won't end there. We always aim to foster long-term working relationships with our clients, meaning you'll benefit from our expert advice and support long after your project has been completed.

Contact us today

Benefit from our detailed approach to architectural joinery by speaking with one of our joinery experts. We will offer our genuine advice on your bespoke joinery project and recommend the best course of action to ensure you get exactly what you are looking for from our services.

Get in touch today via our online enquiry form or reach out to us directly via email or phone. We look forward to hearing and working with you soon.

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What Our Clients Say

Delighted with my new kitchen. Work done to a very high standard and any problem quickly overcome. Whole project finished in record time.

Thank you, Firmus Building services.

Sheila Macdonald 

Love our new kitchen, what a complete transformation! David is hardworking and very knowledgeable on what he does. Nothing is to much for him and the results are brilliant!

Highly recommend. Thanks again!!

Erin Ruth

David Brown Firmus Building Services did a excellent job installing my new kitchen.We are so pleased with the work carried out,and would recommend him to anyone who is thinking of having any work done.

Lynn Collins 

Great 'rescue' job done to a high standard in a short space of time. Hard working, nice bunch of guys whom we would happily recommend. We are delighted with the end result. Well done - and thank you!

Veronica Morrison 

After removing an old water tank cupboard to give me more bedroom space, I required a plasterer to repair my damaged walls.

Contacted Firmus on Friday late afternoon to see when they might get it done for me. Wasn't expecting anytime soon. But true to their word their plasterer was here at 9am Tuesday.

Made an amazing job, considering the holes and damage from removal. Never even left any mess as cleaned up afterwards also. Highly recommend and will have no hesitation in using them again. Many thanks.

Martin Tait,

David was kind enough to sponsor a kids football club I coach with, donating £500 cash to allow them entry into the winter indoor Futsal league so the lads can keep playing through the cold months. Very much appreciated considering I have never met David he was asked by someone we know mutually and had no hesitation in helping out. A very kind gesture, thanks from all the Glen Lions Football Club we are very grateful!

Michael Kane 

I have used Firmus several times over the last couple of years. The most recent job was to remove a leaky skylight and re-sark and slate.

I phoned in the morning and the roofer came out that afternoon and completed the job. Rab, the roofer did a top job!

Good value!

Stewart Mcgregor

They come when they say that they will come. Excellent workers. Excellent organisation of the work to be done. Very reliable in every way. Would highly recommend the company.

Margaret Mackay

Great service from start to finish in fixing my boiler. Easy to contact, came out when said they would. Definitely would use their services again

Susan McIntosh
If you would like to discuss your project, please get-in-touch.
If you would like to discuss your project, please get-in-touch.