How to Choose the Right Commercial Fit Out Contractor
Published 17 October 2026
Choosing the right commercial fit out contractor is one of the most important decisions you will make for your project. Get it right and you end up with a space that works, delivered on time and on budget, with minimal disruption to your business. Get it wrong and you are dealing with delays, unexpected costs, poor workmanship and a contractor who stops answering the phone when problems arise.
Most guides on this topic tell you to check experience, look at a portfolio and get three quotes. That is all true, but it does not tell you what to actually look for when you sit down with a contractor, what questions to ask or how to spot the warning signs before you commit. This guide does.
Start with Clarity on What You Actually Need
Before you approach any contractor, be clear about what your project involves. Not in exact technical detail (a good contractor will help you work that out) but in broad terms. Are you fitting out a new space from scratch, refurbishing an existing one or carrying out targeted works to a specific area? Do you need to stay operational during the works? Is there a fixed completion date you cannot move?
The clearer you are at the start, the more accurately a contractor can quote and programme the works. Vague briefs lead to vague quotes, which leads to variation costs and surprises later.
What to Actually Look for in a Contractor
Experience That Matches Your Project
General experience matters, but relevant experience matters more. A contractor with twenty years delivering office fit outs and refurbishments across commercial premises is a different proposition to one who mostly works in retail or hospitality. Ask specifically whether they have delivered projects similar to yours in terms of scope, environment and sector.
If your building will be occupied during the works, ask whether they have experience of live environment working. Phasing works around an operational business requires a different kind of planning and coordination to working in a vacant building. Not every contractor does it well.
A Single Point of Contact
Find out who will actually manage your project on a day to day basis. This is as relevant for a straightforward office partitioning project as it is for a full multi-trade fit out. On well-run projects there is one person who knows the job inside out, coordinates all the trades and keeps you informed throughout. On poorly run ones, you deal with whoever picks up the phone, nothing gets followed up and problems drift.
Ask directly: who will be my point of contact from start to finish? If the answer is vague, that tells you something.
How They Handle Problems
Every project encounters something unexpected. The difference between a good contractor and a bad one is not whether problems arise. It is how they are communicated and handled when they do. Ask a contractor to give you an example of a problem that came up on a recent project and how they dealt with it. The answer will tell you a lot about how they actually operate.
A contractor who has never had a problem has either not done much work or is not being honest with you.
Compliance from the Start
Building Regulations, CDM requirements, fire safety obligations and landlord consents are not optional extras. They should be raised by the contractor at the initial survey, not discovered mid-project. This applies across all types of work, from electrical and mechanical installations through to structural works and mezzanine floors. If a contractor does not mention compliance in the first conversation, ask about it directly. How they respond will tell you whether it is genuinely built into how they work or something they manage reactively.
This matters particularly for landlords and managing agents. Works delivered without the correct approvals in place can create significant problems at lease end.
Accreditations and Insurance
Any reputable commercial fit out contractor should hold public liability insurance and employers liability insurance as a minimum. Ask for evidence of both. Industry accreditations such as CHAS, Constructionline or SafeContractor indicate that a contractor has been independently assessed against health, safety and financial criteria. They are not a guarantee of quality, but their absence on a larger project is worth querying.
The Quote: What to Look For
Itemised, Not Lump Sum
A single lump sum quote gives you no way to understand what is and is not included, no way to compare quotes from different contractors on a like for like basis and no ability to make informed decisions if you need to adjust scope or budget. Ask for an itemised quotation that sets out each element of the works separately, whether that covers flooring, suspended ceilings, partitioning or the full package of trades.
A contractor who cannot or will not itemise their quote is one to be cautious about.
A Programme Alongside the Quote
A quotation without a works programme is half a quotation. Before you accept any quote, you should know the proposed start date, the key milestones and the expected completion date. If a contractor cannot give you a programme, ask why. If the answer is that they will sort it out once they start on site, that is a warning sign.
The Cheapest Quote Is Rarely the Cheapest Project
This is not a reason to automatically favour the most expensive quote. It is a reason to understand why quotes differ. If one contractor has come in significantly lower than the others, find out what they have left out or where they are planning to cut corners. Variation costs, delays and remedial work on a poorly managed project will quickly erode any saving made at tender stage.
Red Flags to Watch For
Reluctance to provide references. Any contractor with a genuine track record should be able to point you toward previous clients who are willing to talk about their experience. If they cannot, ask yourself why.
Vague answers about who manages the project. A clearly named project manager who stays with the job is a basic requirement on any decent project.
No mention of compliance. If Building Regulations, CDM and health and safety do not come up in the initial conversation on a project of any scale, raise it yourself.
Pressure to sign quickly. A contractor who pushes hard for a fast decision before you have had time to consider properly is not confident in the quality of what they are offering.
No programme. A contractor who cannot tell you when the project will finish before it starts cannot manage your project properly.
Why CBS Clients Keep Coming Back
We have been delivering commercial fit outs, office refurbishments and building works across Portsmouth, Hampshire and the South Coast since 2013, led by our director Steve Crippen, who brings over thirty years of commercial fit out experience. Our clients include business owners, commercial landlords, managing agents and university estates teams. Many of them have been working with us for years.
What keeps them coming back is not complicated. They get a named project manager who stays with the job from survey to handover. They get an itemised quote and a clear programme before anything starts. They get told about problems as soon as they arise rather than at the end of the job. And they get work that is delivered properly, certified where required and handed over complete.
If you would like to understand what that looks like in practice, take a look at our guide on what to budget for an office refurbishment in Portsmouth, or our article on how long a commercial fit out takes, or get in touch directly and we will come and have a look at your space.
Common Questions
How many quotes should I get for a commercial fit out?
Three is a sensible number for most projects. More important than the number is that each quote is itemised and comes with a programme, so you can compare them like for like.
What questions should I ask a fit out contractor?
Ask who will manage the project from start to finish, for an example of a problem on a recent job and how it was handled, how they deal with Building Regulations and CDM, and for references from similar projects.
Why is one fit out quote much cheaper than the others?
Usually because something has been left out or priced differently. Compare the itemised breakdowns line by line and ask the contractor to explain any big gaps before you decide.
Aaron runs CBS projects on site across Hampshire, the South Coast and Sussex, from the first survey to handover, and writes our guides based on what he sees on real jobs.
Related Articles
Looking for more advice on commercial fit outs and office refurbishments? Head over to our Insights & Advice section for more guides, tips and practical information to help you plan your next project.
Our Process
Site Visit and Consultation
We assess your space, discuss your requirements and identify the most practical solution for your project.
Clear Quotation and Programme
You receive a clear, itemised quotation and programme so you know exactly what is included and how the works will be delivered.
Managed Delivery and Handover
Our team manages the works from start to finish, delivering a compliant, high quality result with minimal disruption.
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I have worked with Commercial Building Solutions on several refurbishment projects and they have consistently delivered quality work safely, on time, on budget, with good communication and dealing proactively with any unforeseen issues.
Commercial Building Solutions Ltd undertake works to a first-rate standard with good attention to detail. Their proactive approach to communication enables us as Project Managers to effectively resolve issues in a timely manner.
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