Upgrade your roof in Glasgow and the West of Scotland with premium aluminium roof lanterns, skylights, and conservatory roof replacements — designed to transform the way light and space feel in your home.
Our aluminium roof lanterns are the centrepiece of any extension or orangery. Slimline thermally-broken frames maximise the glazed area, flooding interiors with natural light while delivering outstanding energy efficiency year-round. Available in the full RAL colour range, every roof lantern is manufactured to your exact dimensions — no standard sizes, no compromise.
For conservatory roof replacements, our solid and glazed roof systems use advanced insulation technology to eliminate the cold-in-winter, hot-in-summer problem that makes so many conservatories unusable for half the year.
Whether you’re planning a new extension, upgrading an existing conservatory, or adding a skylight to bring light into a darker space, our team will design and install a solution built to last — backed by our 30 years of manufacturing expertise in Clydebank.
Contact UsInterested in learning more about our roof options? Take a look at some of the most commonly asked questions below.
We offer conservatory roofs, roof lanterns, and skylights, all designed to improve thermal efficiency, natural light intake, and ultimately increase the value of your home.
Yes, we prioritise eco-conscious designs using sustainable materials, ensuring your new roof installation is not only beautiful, but also environmentally friendly.
Our roofs feature advanced glazing technology that provides superior insulation, helping to maintain a consistent indoor temperature. This reduces the need for heating and cooling, leading to lower energy costs. Additionally, our high-quality materials and innovative designs minimise heat loss in the winter and reduce heat gain in the summer, enhancing overall energy efficiency and comfort in your home.
Yes, our expert team offers comprehensive installation services. From initial consultation and site assessment to the final installation and finishing touches, our professional and friendly staff ensure a seamless process. Our team also provides aftercare services to address any questions or maintenance needs, giving you peace of mind and confidence in the durability and performance of your new roof.
We provide a standard 10-year warranty on all our roof products. This comprehensive warranty reflects our commitment to quality and customer satisfaction, ensuring that you can enjoy the benefits of your new roof with confidence and peace of mind.
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We are looking forward to your installation. To help everything go smoothly on the day, please take a few minutes to read through the points below before our team arrives.
Download the guide (PDF)To help our fitters work safely and efficiently, please do the following before our team arrives on your fitting date:
Our fitters will lay dustsheets to protect your flooring before work begins.
Please note: as set out in Clause 12 of our Terms and Conditions, which you accepted at the time of your order, Williams Windows & Doors is not responsible for the removal or reinstallation of blinds, curtains or curtain rails. In some cases, existing blinds may no longer fit once new frames are installed, as the internal reveal dimensions can change. We recommend not rehanging blinds until you have checked the fit against your new frames.
Removing windows and doors from walls can disturb the surrounding plasterwork and decoration, particularly where old frames have been plastered in over the years. Our fitters take every care to minimise disruption, but some cracking, chipping or lifting of paint and plaster around the openings can occur and is unfortunately unavoidable in some properties.
As set out in Clause 12 of our Terms and Conditions, Williams Windows & Doors cannot be held responsible for any damage to internal or external decoration caused by the installation process.
Tip: most customers find that installation day is a good opportunity to have a decorator in afterwards to finish things off.
All glass goes through a high-temperature manufacturing process, and very minor blemishes, such as small bubbles, fine scratches or minute particles, can occasionally be present. As stated in Clause 11 of our Terms and Conditions, all glass used by Williams Windows & Doors is of good quality but cannot be guaranteed to be completely free of minor imperfections, and such imperfections do not affect the performance of your sealed units.
The Glass and Glazing Federation (GGF) sets the UK industry standard for what constitutes a glass defect. Under their Code of Good Practice:
Full GGF guidelines: www.ggf.org.uk
Please assess any concerns under these conditions before contacting us. We are always happy to discuss any genuine issues.
Cleaning your glass: please avoid abrasive cloths or harsh detergents, as these can cause surface damage which would not be covered under guarantee (Clause 11).
New doors, particularly composite doors, can take a couple of weeks to fully settle as the frame adjusts to its environment and the weather seal beds in. During this time the lock or handle may feel slightly stiffer than expected. This is completely normal and nothing to be concerned about.
If after two to three weeks the door still feels stiff or the lock needs a small adjustment, please do not force it. Simply call our office on 0141 941 3050 and we will arrange to come out and adjust it at no charge. It is a quick and easy fix.
Our fitters will apply silicone sealant around the internal and external frames to create a weathertight and airtight seal. Please leave this completely undisturbed for at least 24 hours after your installation.
After 24 hours it will be fully cured. If you wish to paint over it, please use a flexible decorator's caulk rather than applying emulsion directly to the silicone.
Frames will be removed before the new ones are fitted, so the property will be exposed to the elements for a period during the installation. Please plan for this, especially in cold weather if you have young children or elderly family members at home.
After installation you may notice condensation forming on the outside of your new windows, particularly on cool mornings. This is a positive sign: it means your windows are performing well thermally, and it is not a fault. If you notice condensation between the panes (inside the sealed unit), please contact us, as this would indicate a fault covered under your guarantee.
Under Clause 10 of our Terms and Conditions, the efficiency of your sealed units is guaranteed for 10 years from the date of installation. Under Clause 9, we also guarantee to repair or replace free of charge any extrusion that proves defective due to faulty workmanship, materials or corrosion, for as long as you remain in occupation. Your formal written guarantee will be issued once full payment has been received.
If you have any concern after your installation that is not covered by the points above, please don't hesitate to get in touch. We take all feedback seriously and want to make sure you are completely happy with the finished result.
The best first step is always to give us a call. In most cases we can quickly talk through any concern and agree a straightforward resolution. Depending on the nature of the issue, we may ask you to send a few photographs so that we can see exactly what you are describing before arranging a visit. This helps us come prepared and resolve things as efficiently as possible.