frequently asked questions
This is a compilation of questions that we are frequently asked with regards to roof window installation,
roof window replacement and roof window maintenance.
We hope that they are of help to you and if you have any other questions that you would like answered,
please contact us on 020-37958989.
Please feel free to contact us for any inquiries.

Call Us
0203-7958989
General Questions
Are you a London based company?
Yes we are a London based window company (we are based in Richmond, Surrey) and we cover all of the London area and within the M25.
Do you install “Walk-On” glass?
Currently we do not offer installation of Walk-On glass, however, we have been investigating this a product offering to add to our range – so keep an eye out on our blog as this is something we are looking into.
How do I make a complaint?
We would hope that all of our customers are completely satisfied with our service. We try our best to keep any complaints to a minimum, however, if you would like to raise a complaint, please call our office on 020-37958989 and speak with our Office Manager who will work to resolve any issues you may have.
How do I make a payment?
We will issue your invoice before completing the work on your property. Our invoice for works has the details to complete your payment by bank transfer, card payment online, PayPal and credit card. We can also accept card payments over the telephone and smaller balances can be paid in cash. You will receive an updated invoice after every payment you make, to keep you up to date.
How much deposit do you require?
As part of our terms and conditions, we request a 75% deposit for new installations and replacements. This is to cover the cost of materials and a small deposit to reserve your installation time and date. The remaining amount will be payable on completion of your project. For smaller projects, we require full payment in advance.
Which area do you cover?
We cover the London area inside of the M25, if you are just outside of the M25 please still contact us and we will try our very best to assist you.
Roof Window Installation
Can I pay by installments?
We require a 75% deposit prior to starting any projects and the remaining balance must be paid upon completion of the project. If you have a large project, a payment plan may be discussed – please ask for further information. We do not currently offer credit facilities but this is an option that we are investigating to try and achieve the best deals for our customers.
Can you provide a Building Control Certificate?
We are not able to provide a building control certificate directly, however, we can point you in the direction of where to obtain a Building Control Certificate and assist you with the process.
Do you complete site inspections? How much does it cost?
Yes, we do carry out complete site inspections for Roof Windows, covering the London area inside of the M25 and we will attend your property to discuss your plans and the different options available to you.
The price of a complete site inspection for Roof Windows will be depend on your location – and if you decide to go ahead with our quotations for a new roof window installation or replacement roof windows, we will deduct the site inspection fee from your final invoice.
Do you have an “installation only” option if I have the products/parts?
Yes, of course, we are more than happy to come out to your property to complete the installation only. What we would like to do is, before our engineers attend your property, we will double check you have all the correct products needed to complete your project. We are happy to advise you and share our product knowledge.
After all, we wouldn’t want you or our engineer to have a wasted journey if there are elements of the installation missing.
Do you need scaffolding to install or replace a roof window?
This will very much depend on the location of your roof/skylight window. If you are unsure or would like to double check before placing an order, we recommend having one of our engineers attend your property to complete a site inspection. Alternatively, please send us photos of your property and we should be able to assess the requirements.
Do you provide a warranty?
Yes, as mentioned previously, you will receive a 10 year warranty with the window manufacturer for any technical issues and a 2 year warranty with Skylight Fitters for the installation.
Do you provide Vapour Barrier/Flashing/ Lining kit?
Yes, we provide Vapour Barriers and Flashing and Lining kits – and there are many different options to choose from depending on the brand of your window. Please give us a call on 020-37958989 and we can assist you in choosing the best matched product for your needs.
How do I make a payment?
We will issue your invoice before completing the work on your property. Our invoice for works has the details to complete your payment by bank transfer, card payment online, PayPal and credit card. We can also accept card payments over the telephone and smaller balances can be paid in cash. You will receive an updated invoice after every payment you make, to keep you up to date.
How long does it take to install a new window where there is no opening?
When we need to create a new opening, for your new roof window installation, we recommend completing a professional site inspection. This way we can assess all the requirements for your project and you can ask one of our qualified engineers any questions that you may have regarding the roof window installation. As the time needed to complete the new opening will depend on the size of the roof window and its location, again please get in contact and we will be more than happy to guide you based on your individual needs.
How much deposit do you require?
As part of our terms and conditions, we request a 75% deposit for new installations and replacements. This is to cover the cost of materials and a small deposit to reserve your installation time and date. The remaining amount will be payable on completion of your project. For smaller projects, we require full payment in advance.
How much does a roof window installation cost?
We always offer a great price for our professional roof window installation. However, in order to provide that great price, we need to assess where the roof window will be installed including what access will be required as well as taking additional factors and variations into consideration for your specific requirements.
How much does it cost to install roof window blinds?
Our certified engineers will fit your blinds for around £100 per blind.
If the roof window blind installation is completed as part of a roof window replacement or a new roof window installation or you have multiple roof window blinds, we can deliver a package price of £80 per blind. (Please get in touch to see if we have any seasonal deals running)
What happens if there is fault with the window after the installation?
With VELUX and FAKRO roof windows, you will receive a ten year warranty for the window itself (this will be registered in the production code of the window and start from when the window is purchased. Please notewe will purchase your window a few days before installation is complete). We also offer a two year warranty for the installation of the roof window. When you have completed payment of your final invoice, this will act as your warranty and we are more than happy to attend your property if any issue arises. We keep all of your details on file, so do not worry if you misplace your warranty, as we can provide this to you at any time.
Roof Window Maintenance
Can you repair Velux windows?
Yes we can repair Velux Windows but it does depend on the issue you have. It would help if you could send a picture and the code from your window along with a description of the problem, in order to give you an answer.
Do you do emergency/out of office hours site visits? How much does it cost?
Yes, we do carry out emergency call outs or out of hours visits. We understand that sometimes things can happen when you least expect it! To help assist our customers in the best way possible we now offer out of hours service calls in the evening and on weekends. We also offer an emergency call out where we will attempt to get an engineer to you as soon as is physically possible. The emergency call out fee will be dependant on your location and materials required.
Do you supply spare parts and kits?
Yes we are able to supply spare parts for roof windows and window kits. Whether you need a part for a VELUX, FAKRO, KeyLite, Rotto or a non branded window, we will source the part you require and install it for you.
How much does window maintenance cost?
The price of roof window maintenance will vary depending on the size of the project, the amount of work that needs to be completed and any parts that are needed.
However, to give you a rough guide price – a basic service of one large roof window including all associated parts will be approximately £100. If you have multiple roof windows that require maintenance, we can deliver a bespoke package price for you.
Roof Window Replacement
Can I pay by installments?
We require a 75% deposit prior to starting any projects and the remaining balance must be paid upon completion of the project. If you have a large project, a payment plan may be discussed – please ask for further information. We do not currently offer credit facilities but this is an option that we are investigating to try and achieve the best deals for our customers.
Can I upgrade my window glazing without replacing the window frame?
Depending on the condition of your existing frame and when it was produced, you can upgrade the glazing. Please contact our sales team and they will advise of the the different types of glazing available.
Can I use my existing window blind for a new window?
This will depend if your old blind is the same generation as your new window and is not damaged, our engineers will assess this for you.
Do you complete site inspections? How much does it cost?
Yes, we do carry out complete site inspections for Roof Windows, covering the London area inside of the M25 and we will attend your property to discuss your plans and the different options available to you.
The price of a complete site inspection for Roof Windows will be depend on your location – and if you decide to go ahead with our quotations for a new roof window installation or replacement roof windows, we will deduct the site inspection fee from your final invoice.
Do you need scaffolding to install or replace a roof window?
This will very much depend on the location of your roof/skylight window. If you are unsure or would like to double check before placing an order, we recommend having one of our engineers attend your property to complete a site inspection. Alternatively, please send us photos of your property and we should be able to assess the requirements.
Do you provide Vapour Barrier/Flashing/ Lining kit?
Yes, we provide Vapour Barriers and Flashing and Lining kits – and there are many different options to choose from depending on the brand of your window. Please give us a call on 020-37958989 and we can assist you in choosing the best matched product for your needs.
Do you recycle my old window?
Yes, we offer a window recycling service to recycle your windows and this service comes with a small fee that will be included in your quotation. This service is, of course, optional as you can dispose of the windows yourself, should you wish.
How long does it take to replace a roof window pane?
A Roof Window Pane replacement can be completed in half a day for one small window or a full working day for one larger window. Our window engineers will assess the current condition of your existing roof window frame and make sure the pane replacement will complete smoothly.
How much does a window pane replacement cost?
This will, once again, depend on whether you would like to upgrade the glazing or have a like-for-like replacement. The size of the roof window will also affect the price. One of our site inspections will be able to give you a more detailed pricing for replacing a roof window pane.
How much does a window replacement cost?
The price of a roof window replacement varies depending on the roof window specification you need. For example, you can have double glazed laminated safety glass, noise reduction glazing or energy efficient glazing. These elements will all affect the price of your replacement roof window. In addition to the various glazing options, the roof window operation has various options, which can be manual, electric or solar powered (VELUX INTEGRA). You also have a choice of frame material which can be natural pine wood, white painted, polyurethane or PVC. There are many more options, why not speak to our helpful sales team today and find what specifications will best fit your needs and house decor.
What if my current window space does not match any window replacement options?
If your current window space is bigger or smaller than the proposed replacement window options, our window engineer can develop plans to amend the current opening to suit the replacement window. This is a specialist area and we recommend completing a site inspection, where all aspects and requirements will be discussed. However, we will do our best to source a window with the same dimensions where required.