Skip to content

About us

We will provide you with a solution

As well as making products that improve your home, we offer a bespoke service — design consultation, manufacture and installation handled by the same team.

Elevated view over the balcony stacks and roof of a London apartment development nearing completion

Where we came from

From Holland to North London

Prime Duo Frame started its journey as Boroci Group Company in Holland and have done enormous projects all over Holland and other EU countries.

We are now based at Address to be confirmed in London, working on residential and commercial projects across the city. The window and door systems we fit are ALUMIL architectural aluminium, alongside uPVC where it is the better answer for the building.

Our team of expert installers have over 25 years of experience between them.

Completed brick elevation of a London apartment development with anthracite aluminium windows throughout
Finished apartment interior with three full-height glazed balcony openings and an oak floor
Close view of the handle and lock on a glazed aluminium terrace door

How we work

Bespoke means made for your opening

Not a stock size trimmed down on the day. Every unit is manufactured to the measurements we take on your site.

  • Highly experienced, qualified staff

    The same team advises, measures and installs, so nothing is lost in translation between visits.

  • Quality materials

    ALUMIL architectural aluminium systems with certified performances, and uPVC where it suits the building better.

  • Informed, helpful people

    Straight answers about what a system will and will not do — including when a cheaper option is the right one.

Our workflow

How a job runs

Four stages, and you deal with the same team through all of them.

  1. 01

    Design visit

    We visit you to discuss your plans and take exact measurements.

  2. 02

    Manufactured

    Your windows and doors are then manufactured to the exact size required.

  3. 03

    Installation

    Our installers will come and expertly install all your windows and doors.

  4. 04

    Guaranteed

    All of our work comes with a 10-year guarantee on all purchased products.

Get started

Let’s talk about your building

Tell us what you are trying to achieve. We will come out, measure up and give you a written quotation — free, and with nothing to sign.

Supply only or supply & fit · 10-year guarantee · £10m public liability