Commercial Kitchen Installation Process: Timeline and What to Expect

Fitting a commercial kitchen is among the largest outlays a foodservice business will make. Opening a restaurant, refitting a hotel kitchen, fitting out a supermarket food hall: in each case, understanding how the job runs and how long every stage lasts is what keeps your opening date believable and your budget where it should be.

There's a lot more to it than wheeling equipment into a room. Design, bespoke stainless steel fabrication, approvals, coordinating other trades, installation, testing and handover all sit inside the job. We've been designing, manufacturing and fitting commercial kitchen installations around the UK for over 70 years, and since we make our own equipment, every one of those stages stays in-house with us.

Below, we take each phase in turn: what goes on, the usual duration and what you'll need in place. If you want the bigger picture on planning a kitchen from a blank sheet, read this alongside our complete guide to commercial kitchen design in the UK.

Initial Consultation and Site Survey

Projects begin with a consultation and site visit, normally one to two weeks after you first get in touch. Someone from our design team visits your premises to measure up, get a feel for how you plan to operate and pick out anything likely to cause trouble further down the line.

Dimensions are only part of the survey. We look at the electrical supply, gas connections, water, drainage and how much ventilation capacity is already there. Floor loading, ceiling heights, door widths and delivery routes get checked as well, since nobody wants to find out on installation day that a counter won't fit through the door. Being the manufacturer, we can also tell you there and then where a bespoke piece would beat an off-the-shelf one.

Then we'll go through your menu, style of service, expected covers and busiest periods. Those operational details drive every decision afterwards, from which equipment you choose to the way prep, cooking and service areas link up. There's more on why that matters in our article on commercial kitchen workflow design. Last of all, we agree target dates, a budget range and any limits you're working to, such as how long an existing kitchen can afford to shut.

Design Development and Planning

Expect design development to take two to four weeks, with larger kitchens at the longer end. We draw up layouts that show where each piece of equipment sits, how work flows and where every service connects. On projects with bespoke elements, this is the point where counters, benching, shelving and canopies get specified to suit your space exactly.

3D visuals let you see how the finished kitchen will look and feel, and technical drawings back them up for plumbing, electrics, gas runs and ductwork. Those drawings earn their keep three ways: you get a clear picture, our fabrication team gets a build brief, and building control gets the basis of its submission.

Allow for some back and forth. We may tighten the layout to improve flow, swap equipment to fit the budget or alter details so the scheme meets regulations. Our commercial kitchen design team has come across most layout problems already, which means we fix them on paper now instead of on site later. Short on room? Our commercial kitchen layout ideas show what smart zoning can free up.

At the end of this phase you get a full specification covering every item of equipment, every material, finish and service. That document forms the contract for what we supply and fit, and your electricians, plumbers and builders work from it too.

Regulatory Approval and Documentation

Approvals happen in parallel with design and usually add two to six weeks, depending on the local authority and how much work is involved. Your kitchen needs to meet building regulations, health and safety law, the relevant British Standards and sometimes planning requirements as well.

Most installations need building control approval, especially where there are structural changes, new services or changes to extraction. We put together the drawings, specifications and compliance statements for you. Because we know what building control officers look for, there's less chance of an application coming back for resubmission.

Only Gas Safe registered engineers can carry out gas work. Electrical installations have to comply with BS 7671 and be certified by qualified electricians. For ventilation, the design should follow DW/172, the industry specification covering commercial kitchen extraction. Each of these is covered in more depth in our UK commercial kitchen regulations and compliance guide.

Leasing your premises? Then you'll most likely need the landlord's consent as well. We supply the paperwork to get that approved fast, so it doesn't stall the programme.

Fabrication and Manufacturing

Here's where buying from a direct manufacturer really shows. As soon as the design is approved and the quotation accepted, we begin making your bespoke components in our own workshop. Depending on how much custom work there is, fabrication normally runs four to eight weeks. Standard equipment can often be sourced more quickly.

We do our own laser cutting, which means parts come out accurate and repeatable, and worktops, shelves, canopies and counters match the measurements taken on survey. That precision is what prevents the familiar installation hold-up of a part that nearly fits. Our catering fabrications page shows the full range of what we make.

Nothing leaves the workshop without being checked. Depending on the application we use grade 304 or 316 stainless steel, with welds and finishes suitable for food environments. Getting it right at the factory avoids quality problems on site and adds years to the kitchen's working life.

Since we own the workshop, the fabrication schedule is ours to control. You'll hear from us as manufacturing moves along, and we confirm delivery dates so the rest of the project can be planned around fixed dates, not guesses. That's a large part of the reason clients pick Triline Contracts over dealer-led options.

Pre-Installation Preparation

Projects are won or lost in the two to three weeks before installation. Other trades have to complete their first and second fix so the services are ready when we arrive. Electricians run circuits to the agreed points, plumbers take water, drainage and gas to fixed positions, and ventilation contractors fit the ductwork and air handling.

Next comes our pre-installation inspection, which confirms the site is ready. Floors need to be finished and cured, service points in the right places, delivery access clear and the space clean and secure. Anything still outstanding gets raised at this stage, while there's time to deal with it before our team turns up.

We plan logistics in detail as well. Commercial kitchen equipment is big and heavy, so we time deliveries to follow the installation sequence rather than fill the site with crates. If access is limited, overnight or weekend deliveries are an option. Our process page shows how this slots into the way we work overall.

Normally we also run a pre-installation meeting with all parties to agree the programme, site rules and who is responsible for each task. Thirty minutes round a table can save days of trades tripping over one another.

The Installation Itself

This is the stage people imagine first, and it tends to be quicker than they expect. On site, installation takes about a week for a small kitchen and six weeks or longer for a big, complex one. In that window an empty shell turns into a kitchen that works.

There's a fixed order to it. Infrastructure goes in first: floor drainage channels, wall cladding, ceiling finishes. Major equipment follows, positioned and fixed as we work methodically through the room. Bespoke items like worktops, shelving and food servery counters are fitted exactly to the drawings, and that's where accurate surveys and precise fabrication prove their worth. We seal joints to food-safe standards and check every fixing.

All the way through, we work with the engineers connecting power, gas, water and drainage. With everyone following one specification, connections are right first time and get tested as we go, so any issues surface early.

The site is cleaned up daily and we stick to strict health and safety procedures. If you're still trading, noisy jobs are booked for when you're closed and work areas stay screened off from the live operation.

Commissioning and Testing

Commissioning is what takes an installed kitchen and makes it an approved, working one. Three to five days is typical, and it shouldn't be rushed, since this is the stage that shows the kitchen is safe and compliant.

On the electrical side, every circuit, safety device and appliance is tested and the installation certificate issued. Gas commissioning includes pressure testing the pipework and checking burner operation and flame safety devices, with sign-off from a Gas Safe engineer. Water systems get flushed and checked for pressure and flow; drainage is tested for fall and capacity.

Ventilation deserves extra attention. Extract systems have to reach their design airflow, hold the kitchen at the correct pressure so cooking smells don't drift into front-of-house, and remove heat and steam properly. We test using calibrated instruments and log the results for building control and for your records.

Last, each appliance is set up to its manufacturer's specification. We calibrate ovens, check fridges and cold rooms compartment by compartment, and test dishwashers for wash and rinse temperatures. By handover, everything works.

Handover and Staff Training

Handover generally takes a day or two. You get a complete pack: equipment manuals, commissioning certificates, warranty paperwork, maintenance schedules and as-built drawings recording exactly what went in and where.

Your staff are trained too, covering safe operation, daily cleaning, basic troubleshooting and what to do in an emergency. Where specialist equipment is involved, we set up training with its manufacturer. That time is quickly repaid through fewer breakdowns and equipment that lasts longer.

Building control and any other final inspections tend to take place during handover or shortly after. We organise them, go along with you and handle any points that come up. When the certificates are issued, the kitchen is cleared to open.

And we don't vanish once it's done. We'll come back when you're running at full volume, make the small tweaks that real service always reveals, and remain available while the kitchen beds in.

Realistic Timeline Expectations

No two projects are the same, but the ranges below make a sound starting point for planning your launch date, briefing your other contractors and talking to landlords or investors.

Small Café or Takeaway Kitchen (25 to 40m²)

Budget around 12 to 16 weeks from first consultation to handover. Roughly, that's two weeks for consultation and survey, three for design, three to four for approvals and procurement, one for installation and one for commissioning and handover. This assumes the services are ready when we arrive. For making compact spaces work harder, see our guide to small commercial kitchen design.

Mid-Sized Restaurant or Hotel Kitchen (60 to 100m²)

Allow 16 to 24 weeks. The design is more involved, there's more bespoke fabrication, two to three weeks are spent on site and commissioning takes longer. Structural changes, new services or complicated extraction will move you towards the upper end.

Large Supermarket or Institutional Kitchen (150m²+)

Expect 24 to 36 weeks, sometimes longer. There's a lot of design work, a substantial amount of fabrication, several specialist contractors, four to eight weeks on site and thorough commissioning. If you phase the installation to keep part of the operation open, it will take longer still.

What Slows Projects Down, and What Speeds Them Up

• Slows it down: listed buildings that need additional consent, limited access that forces out-of-hours working, long lead times on specialist equipment, and changing the design after fabrication has begun.
• Speeds it up: agreeing the design in full early on, ordering long-lead equipment the moment the specification allows, holding other trades to their schedule, and using one company for design, fabrication and installation.
• Contingency: add 10 to 15 percent to the overall programme. That costs far less than moving an opening date.

Is a Professional Installation Worth the Investment?

With figures this size, it's a reasonable thing to ask. Put simply, the route that looks cheapest on paper is seldom cheapest across a kitchen's lifetime. Reinspection fees, remedial work, underperforming equipment and extra days closed soon mount up, and they usually land once the original contractor has left.

Who you buy from matters just as much as who does the fitting, and our guide to choosing commercial kitchen installers in the UK sets out what to check before signing. Here's how the two usual routes stack up:

A properly installed kitchen pays its way daily too: smoother service, fewer breakdowns, easier cleaning and inspections passed first time. See what that looks like in supermarkets, restaurants and cafés in our project portfolio.

For more than 70 years, Triline Contracts has designed commercial kitchens and fabricated stainless steel, and major UK supermarket retailers and hundreds of independent foodservice operators trust us as a partner. We're a direct manufacturer, so we design, fabricate and install bespoke catering schemes built to the standards UK commercial kitchen regulations demand, whether that's a compact café or a large supermarket installation.

Ready to plan your commercial kitchen installation? Contact our design team today

Common Questions About Commercial Kitchen Installation