Timber Windows

As professional & authorised installers of timber windows, we work with with leading manufacturers such as Rationel and VELFAC, offering high quality timber windows and doors designed to provide daylight, fresh air and a better indoor climate. We work throughout Devon, Cornwall and the Southwest, so enquire with us today.

Commercial Timber Windows

Rationel Timber Windows

Rationel’s timber windows are renowned for their quality and innovation, making them the perfect choice for new installations, commercial renovations and refurbishments. They are manufactured to order with a range of opening types, colours and finishes available to suit any style.

VELFAC Aluminium Clad Timber Windows

Our composite timber windows from VELFAC combine natural internal timber with low maintenance external aluminium to deliver a secure and sustainable design with contemporary style, excellent insulation and impressive durability. This makes them the ideal glazing solution for commercial and architect-designed projects.

Our Suppliers

Secondary Glazing

If applicable to your commercial project, we also offer quality secondary glazing from Incarnation. Instead of ripping out old timber windows, we will insert a lightweight aluminium window that sits within the property’s existing window.

Secondary glazing is an ideal option for improved soundproofing, security and insulation, especially for Heritage sector projects or areas that have restrictions on traditional window replacement.

Benefits of Secondary Glazing

Noise Reduction

If your property is in a busy area affected by noise pollution, secondary glazing can reduce noise by up to 70%, depending on the type of glass used. The two pieces of glass are separated by a distance of 100mm to create an effective sound barrier and a more peaceful atmosphere.


Improved Thermal Performance

While single glazed windows are renowned for poorly retaining heat, secondary glazing can help to resolve this. Our made-to-measure timber windows will help to eradicate cold spots, draughts and rattles in your commercial property.


Enhanced Security

Even with their slimline design, our secondary glazed timber windows are designed to be extremely robust. The addition of another physical barrier with extra locking points helps improve the property’s security for peace of mind.

Key Features

Bespoke Design

We understand that every property is different and has individual requirements to be met. Our timber windows offer a range of glazing options to customise window performance, as well as various handles, hinges, restrictors and accessories available.

Unbeatable Quality


Highly Durable

View our Media

When you choose ADS Commercial, we work with you to offer all the information you need to make the best decision for your commercial property. Whether local to us in Devon, Cornwall or further afield from Bristol to Land’s End, you can browse through our media to find out more.

3.86 MB

VELFAC - User Guide pdf

6.16 MB

VELFAC - Windows Design With Confidence pdf

4.00 MB

VELFAC - Wood / Aluminium Windows For Education Projects pdf

33.81 MB

VELFAC - Product Catalogue For Architects pdf

How to mount a window handle

How to mount glass on Rationel AURA & AURAPLUS

How to dismount glass on Rationel AURA & AURAPLUS

Replacement of handle VELFAC Ribo & VELFAC Classic 2021

High quality windows with a long lifetime expectancy

VELFAC 200 for large residential projects

93% of a VELFAC 200 window can be recycled

Rationel - Windows and doors

Rationel - Forma & Formaplus

Rationel - Aura & Auraplus

VELFAC - Brochure

VELFAC - User Guide

VELFAC - Windows Design With Confidence

VELFAC - Wood / Aluminium Windows For Education Projects

VELFAC - Product Catalogue For Architects

Accredited Installers

Accredited Installers

Choose your timber windows with confidence when you choose ADS Commercial. In addition to being FENSA registered and a trusted Smart Installer, we have SSIP, BM TRADA and SMAS Worksafe accreditations to provide you with peace of mind. Furthermore, we also have an FDIS Diploma and Silver Constructionline Membership.

Whether local to us or further afield in our Southwest coverage area, you can be sure your commercial property is in expert hands when you choose ADS Commercial. No matter the size or scale of your project, we offer quality that you can trust will stand the test of time.

Choose ADS Commercial

Why Choose ADS Commercial?

As well as being a highly accredited company, we also have over 50 years of accumulated industry experience and expertise to assure you that you are working with trusted professionals. Our project management and quality control will ensure a result you can be proud of.

We pride ourselves on our excellent communication, walking you through our process and ensuring your project is on time and within budget. Whether near us in Devon, Cornwall or elsewhere in the Southwest, we work across commercial and public sectors such as Education, Heritage, Industrial, New Builds, Retail and Defence.


What areas do you cover?

We are based in Devon, but our timber windows and range of products are available to customers further afield in Cornwall, Plymouth, Torquay and Exeter. Our coverage area also includes areas between Land’s End and Bristol. Enquire with us today to confirm we work in your area.

What other products do you offer?

What is the lifespan of timber windows?

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