
The painting and decorating industry in London contains outstanding professionals — and a significant number of less scrupulous operators who take deposits and deliver poor work, disappear mid-job, or systematically underquote and then add extras once work has started. Every year, homeowners across Hampstead, Highgate, Muswell Hill, and North London find themselves in difficult and expensive situations with contractors they should not have hired. Here are eight red flags to watch for, from the team at Hampstead Painting Company who hear these stories regularly.
Red Flag 1: No Written Quotation
Any contractor unwilling or unable to provide a written, itemised quotation is a significant risk. Without a written document specifying what is to be done, what products will be used, and what the price is, there is no basis for resolving disputes when they arise — and they will arise. Always insist on a written quote before agreeing to proceed.
Red Flag 2: Quote Without a Site Visit
A decorator who quotes for your job without visiting the property has either guessed the price, or set a deliberately low figure that will increase once they are on site and have some degree of commitment from you. Reputable decorators always visit before quoting — there is no reliable alternative.
Red Flag 3: Pressure for Large Upfront Payments
It is reasonable for a contractor to request a modest deposit — typically 10–25% — to secure a slot and cover initial materials. Requests for 50% or more upfront are a warning sign, particularly from contractors without a track record you can verify. If something goes wrong after a large deposit has been paid, recovery is difficult.
Red Flag 4: No Public Liability Insurance
Any decorator working in your home should have public liability insurance. If a decorator damages your property or injures themselves on site, an uninsured contractor leaves you exposed. Always ask to see proof of current insurance before work starts.
Red Flag 5: No References or Verifiable Reviews
A contractor with no online reviews, no references they can provide, and no portfolio of past work is an unknown quantity. Reputable decorating companies have a track record — verifiable Google reviews, client references, or a portfolio. If none of this is available, proceed with caution.
Red Flag 6: Suspiciously Low Prices
A quote that is significantly lower than all others — more than 30–40% below the average — should be questioned carefully, not celebrated. Low prices are achieved by reducing preparation, using cheaper materials, applying fewer coats, or planning to add extras once work begins. Ask the low-cost contractor to confirm exactly what their quote includes and compare it item for item against the higher quotes.
Red Flag 7: Reluctance to Specify Products
A professional decorator should be able and willing to specify exactly which paint products they intend to use. Reluctance to name products, or vague references to "good quality trade paint," often indicates that cheap products are being substituted for what was implied or agreed in conversation.
Red Flag 8: No Written Guarantee
Quality decorating work should come with a written workmanship guarantee — a commitment to return and rectify any failures in application within a defined period. The absence of any guarantee indicates a contractor who does not expect their work to last, or does not intend to be available if problems arise.
What Good Looks Like
Hampstead Painting Company provides detailed written quotations, verifiable references, current public liability insurance, clear product specifications, and a 12-month workmanship guarantee on every project. Our pricing reflects the real cost of doing the job properly — and we are happy to explain exactly what that cost covers.
If you are in the process of gathering quotes for a North London decorating project, request a quotation from Hampstead Painting Company and compare it against others. We welcome scrutiny.
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About the Author
Michael Roberts is our Senior Color Consultant, bringing a designer's eye to every project and helping clients choose perfect palettes for their spaces.
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