Corona Virus Lockdown Update 

In light of the UK Government’s announcement over the weekend that coronavirus restrictions are to be increased we would like to clarify what this means for Mark Forrest & Co Ltd and our customers. Following guidelines contained within the Prime Minister’s address Mark Forrest & Co Ltd are permitted to maintain operations through the lockdown period under the exemption;

“Workplaces should stay open where people can’t work from home – for example in the construction or manufacturing sectors”.

This means until instructed otherwise by the UK Government, building installations will continue as planned and day to day operations will continue as normal. Our office will remain open.As things stand, if you have an installation date with us the installation will go ahead as planned. Customers are not required to be home when the installation takes place as long as our installation team can gain access and electricity.


Patio Door Installers in Bolton, Manchester, North West

Secure your property and add the finishing touches with the best windows, doors and roofline products available in North West England, perfect for standing up to the great British weather.

Technically advanced 

Our range of patio doors, are manufactured and designed by the market leaders in patios - Patiomaster.  With over twenty-five years’ experience in the manufacture of patios – you can be sure that your patio will be built to last and give you all the thermal and security benefits you would expect from an industry leader.

British made

Manufactured locally in a purpose-built facility, our Patiomaster patios are manufactured from profiles extruded in Telford by the largest extruder of PVC profile in the UK – Profile 22.

Designed by Experts

Undeniably, Patiomaster doors are the market leaders in patios – with over five hundred years (combined) engineering experience going into the design of these doors you can rest assured that they will give you the functionality you need for years to come.

More Thermally efficient

Designed to exceed todays exacting thermal performance requirements for domestic applications, your Patiomaster doors will keep you snug while providing that much needed light through those chilly winter days.

More Cost Effective

Patiomaster doors are amongst the best thermally performing products available, this will help you keep those ever-rising energy bills under control.

Better for the environment

With an estimated lifespan in excess of thirty-five years and the ability to recycle several times – installing the Safeguard range of windows means you are doing your bit for the environment.

Strong and Secure

Manufactured to last but with designed in security features other brands cannot match – Patiomaster doors can be manufactured to achieve the prestigious, Police approved Secured by design accreditation.

Fully Tested

Regular testing in mechanical rigs by accredited bodies such as the British standards institute, ensure that Patiomaster doors continue to exceed the requirements for the enhanced security and thermal performance accreditations that are held.

Beautiful Colours

Offering a wide range of foiled options, the Patiomaster range of doors is designed to give the homeowner the widest range of choice available.


Patiomaster products come with a 10-year warranty against cracking warping and discoloration.


These accreditations are held by companies throughout our supply chain.

BS 6375 – Performance, strength and operation of PVC windows.
BS EN 12608 – Fabrication of windows and doors
PAS 24 – Enhanced security of windows
Secured by Design – Further security of windows and doors
ISO 9001 – Company management structure
BS 7412 – Weather testing PVC windows
BES 6001 – Responsible Sourcing of products
ISO 14001 – Environmental management