How the Veranda and Pergola Industry Is Structured — and What It Means for You

Almost nobody buys a veranda knowing how the industry behind it works, and that is a shame, because the structure of the trade explains most of the things that puzzle people while they are shopping. Why two quotations for what looks like the same product differ by thousands. Why one company insists on fitting it themselves and another is happy for you to arrange that. Why the person who surveys your garden sometimes works for the manufacturer and sometimes does not.

None of it is a secret and none of it is sinister. It is simply how a product that has to be surveyed, engineered to a specific opening, delivered on a lorry and then assembled at height in somebody's back garden ends up reaching the person who wanted it. Understanding the shape of it puts you in a considerably better position to work out what you are actually being offered.

The Manufacturer

At the top of the chain is the company that designs, engineers and warehouses the product. They own the extrusion dies, they commission the structural calculations, they write the assembly manuals, they hold the stock, and they carry the product warranty.

That is a genuinely industrial operation, and it is where the real cost and the real expertise sit. The load tables that tell you what a structure can carry in snow, the tolerances that decide how glass is sized, the decision to put a steel strip inside the gutter rather than making the aluminium deeper — all of that happens here, long before anybody sees a brochure.

What it does not include is knowing anything about your garden.

Two Ways It Reaches You

From the manufacturer, the product goes one of two ways.

The first is direct. The manufacturer sells to the public themselves, either online or through their own showrooms, and often employs or contracts their own survey and installation teams. You deal with one organisation from enquiry to handover.

The second is through a trade dealership. The manufacturer appoints independent businesses to sell their products, and those businesses take on the customer-facing side: the enquiry, the survey, the design, the quotation, the aftercare, and — depending on the dealer — the installation as well. Some dealers employ fitters. Some contract them. Some, like us, supply the goods and leave installation to the customer and whoever they choose.

So the two most common chains in this trade are manufacturer to trade dealer to contracted installer, and manufacturer to trade dealer to customer, with the customer arranging fitting themselves or doing it with their own hands.

Why the Work Gets Handed Over

On the face of it a veranda is a simple thing. Two posts, a roof, a gutter. It is only when you get into the detail that you see why one company doing all of it is a considerable ask.

Somebody has to survey the site properly — the true post-to-post dimension at the height the beam will sit, how far the wall is out of plumb, which way the ground falls, whether the patio is level, where the drain is. Somebody has to check what the posts will stand on and whether foundations are needed. Somebody has to work out the geometry: the fixed roof pitch, the wall profile height, the passage height at the front, whether a gable panel is needed and at exactly what angle. Somebody has to convert all of that into manufacturing dimensions, order the right profiles in the right lengths and the right colour, and know that a joined width has to end in a particular number.

Then somebody has to receive a pallet of long aluminium sections, check it against the delivery note, and assemble it in the right order, working at height, in whatever weather that week produces.

That is engineering, surveying, groundworks, logistics, glazing and construction. Very few businesses are genuinely good at all six, and the ones that try to be tend to be expensive, because you are paying for every department whether or not you needed it.

Where We Sit

Roma Verandas is a trade dealer that supplies goods. We take the enquiry, work out what will actually fit your space, confirm the sizes, and deliver the product. Installation is arranged by you — either with a builder or landscaper you already trust, with an installer we can put you in touch with, or by doing it yourself.

We are not going to pretend that is universally the best model, because it is not. If you have no trade you trust and no appetite for coordinating anything, a supplied-and-fitted price from one company is worth paying for and you should pay it. One contract, one number to ring, no argument about whether a fault is a product fault or a fitting fault.

What supply-only does is give you the price broken out, so you can see what the goods cost and what the labour costs, and decide separately about each.

What It Means for What You Pay

Installation on a domestic veranda or pergola is commonly two thousand pounds or more, depending on the size, the access and whether groundworks are involved. When it is folded into a single figure you never see it, and you have no way of judging whether it is reasonable.

Broken out, you get three real options. Pay a professional installer, having seen what you are paying for and compared it. Use your own builder, who is already on site doing something else and will price the work sensibly. Or do it yourself, and keep the difference.

None of those is the right answer for everybody. But they are all better than not knowing the number.

Doing It Yourself, Honestly

Plenty of people build these themselves and are delighted with the result. If you have a friend who is handy, owns proper tools and a decent set of ladders, and is built a bit stronger than average, a weekend and a barbecue is a genuine option — and there is real satisfaction in sitting under something you put up yourself.

It also has real conditions attached, and we would rather set them out than gloss over them. The manufacturer's manuals specify a minimum of two people, and on the larger systems recommend material lifts for handling the gutter. You are working at height with long, heavy, awkward aluminium sections and, on glazed models, panes that weigh a great deal. The manuals are explicit that the order of the steps must not be changed and that the warranty is void if the structure is not assembled in accordance with them — which is not legal throat-clearing, because the published load figures are calculations of one specific assembly.

The advantage you have over a professional is time. Nobody is charging by the day, so you can read the manual twice, join the gutter sections properly on trestles, check the posts are plumb three times, and stop when the light goes. Done carefully, that is often a better job than a rushed one.

What it is not is a job to start on a Saturday morning having skimmed the instructions on the Friday night.

Why We Explain All This

There is no commercial advantage to us in a customer understanding the supply chain they are buying through. It makes us easier to compare, and it makes it obvious that a proportion of readers will take the information and use it somewhere else.

We publish it anyway, because a customer who knows how the trade is structured asks better questions, buys the right thing, and is not disappointed six months later — and because giving without expecting anything back turns out to be a reasonable way to run a business. It sounds like the sort of thing people say rather than mean. We would rather say it plainly and be judged on whether the products hold up and whether we are still here when you need a part in eight years.

If any of the above raises a question about your own project, ask it. Whether you buy from us, from somebody else, or from us and then build it yourself with a friend and a cold drink, you should at least know what you are choosing between.