Interview: Derek Miller returns to Scotland's specification frontline with Partner Spec

Having spent more than 2 decades building Scope Bathrooms, Derek Miller has founded Partner Spec – a consultancy that helps manufacturers, developers and designers navigate the Scottish specification landscape. Tim Wallace hears the full story.

You could say Derek Miller has come full circle. Last November the former co-owner of Scope Bathrooms set up Partner Spec Limited, a consultancy connecting major bathroom and heating brands with housebuilders, designers and contractors across Scotland. Following a long career on the retail and supply side of the specification market, Miller is now representing manufacturers directly – using long-established relationships and deep local market knowledge to secure contracts in residential newbuild and hospitality projects.

“I’m back to doing what I’ve always loved most,” Miller explains. “Identifying opportunities, developing specifications and converting them into secured business. Contract specification is in my blood and I thrive on delivering new deals. Specifications can take a long time to get over the line, but a number of projects have already been discussed and registered. Most of these will hopefully be delivered over the next 12-18 months.”

At first glance, some might assume Partner Spec simply duplicates the role of manufacturers’ business development managers (BDMs). But Miller is quick to clarify the distinction.

“All of the brands I represent are hugely successful and entirely capable of winning business themselves,” he says. “What I bring is long-standing relationships, local market knowledge and an established network in Scotland that would be difficult and costly for some manufacturers to replicate directly.”

Scotland, he points out, remains a relatively compact contracts market. For some brands, the volume simply doesn’t justify a fully dedicated specification presence north of the border. Partner Spec effectively fills that gap. Miller works in close alignment with each brand’s contracts and BDM teams, but with a clear and singular focus: opening doors, influencing specification at an early stage and ensuring his partner brands are positioned appropriately across mid- to high-end developments.

“The aim is simple,” he says. “Make life easier for housebuilders and interior designers by presenting best-fit product solutions in structured, tiered options. At the same time, secure sustainable, profitable business for the brands.”

A crucial element of the model is exclusivity. Miller represents a tightly defined portfolio including Roca / Laufen, Hansgrohe, Roman Showers, Imperial Bathrooms, Towelrads and Moda Ceramics. Together, the portfolio spans sanitaryware, brassware, showering, traditional bathroom design, whole-house heating with an emphasis on renewables, and porcelain tiles for the specification sector.

“I was very deliberate about avoiding unnecessary conflicts,” Miller explains. “There’s some natural overlap in areas, but I know these businesses extremely well. I’ve traded with most of them for decades.”

That familiarity matters. Across his career, Miller has accumulated more than 100 years of combined trading history with his chosen brands. Relationships with senior and middle management teams are long established, and agreements are built on trust, backed by clearly defined performance expectations. Just as importantly, the portfolio enables what he describes as a 'Good/Better/Best' approach: “I’ve always believed in tiered specification,” he says. “Developers need flexibility. You have to be able to present options that protect margin but still elevate the overall offer.”

For suppliers and retailers, that structured thinking will sound familiar, but in the current climate it has taken on renewed importance. “The market is tougher than many people are admitting,” Miller says. “Build costs have risen sharply due to regulatory changes, yet house prices are broadly static. That’s putting real pressure on developer margins.”

Unsurprisingly, value engineering is now a recurring theme in specification discussions: “I’m being asked more frequently to look at ways to refine or adjust specifications without damaging perceived quality,” he explains. “That’s where structured, tiered options really come into play.”

Miller has also noticed a shift towards Build To Rent (BTR), especially in high rise apartment projects: “BTR is offering better and quicker returns on investment for certain developers; student residential projects are also offering some respite,” he says. “The keynote speakers at the recent Commercial Interiors UK (CIUK) networking event in Glasgow were the owners of a prestigious local interior design practice, renowned for the delivery of major hotel projects. But they’re also now delivering BTR and student residential projects, where there is a clear overlap with their skill set. I’ll be emphasising the importance of these emerging project areas to my brand partners."

Political uncertainty and broader economic underperformance continue to affect confidence. Yet Miller views the current climate as cyclical rather than terminal. “I’ve been around long enough to know this is part of the cycle,” he says. “The market will return. The brands that secure relationships and business during difficult periods will be best placed when it does.”

One of the clearest aspects of Partner Spec’s positioning is that there is no charge to developers or designers for its services. The commercial relationship sits with the brands.

“The clients I’m dealing with are extremely busy,” Miller says. “They’re juggling regulatory changes, cost pressures and programme issues. If I can simplify the bathroom and heating package by presenting considered, commercially viable options, that’s valuable.”

In practice, that means early engagement with housebuilders, design consultants and contractors: reviewing project briefs, proposing coordinated product packages and aligning technical and logistical support from the partner brands. The consultancy effectively acts as a bridge. Its commercial awareness stems from decades of retail and supply-side experience, now applied from the manufacturer perspective.

Miller’s credibility in the specification sector was forged during his years at Scope Bathrooms. Founded in 1999 with business partner Neil McKinlay, Scope began life as a high-end bathroom retailer before evolving into one of Scotland’s most significant suppliers to the contracts market, particularly in residential newbuild. The business also developed a strong presence in hotel and leisure projects.

“We were always strong advocates of major bathroom brands,” Miller reflects. “Scope itself became known in the market, but our real strength was the quality of the manufacturers we aligned ourselves with.”

That brand-first philosophy allowed Scope to “bat above its average”, as he puts it, building influence beyond what its size might have suggested. In 2022, the business was sold to a large holdings company, enabling McKinlay to retire. Miller remained for a further 3 years to oversee transition and continuity.

Contrary to what some might expect, the shift from owner to employee proved positive. “I learned a great deal,” Miller says. “The parent company invested significantly in new warehouse facilities and a beautiful showroom, and I was given considerable autonomy. It was a professional, supportive environment.”

Turning 60 last summer prompted understandable reflection: “At 60, there’s still time to build something new,” he says. “I’d always wanted to consult and to use the lessons learned and draw on the relationships I’ve built over the years. At the CIUK event mentioned earlier, I noticed that the interior design community appears to be getting younger. At least no-one saw fit to offer me their seat. When that day comes, it may be time to throw in the towel!"

Six weeks after leaving Scope, Partner Spec was live. For suppliers and retailers watching Scotland closely, Partner Spec represents an evolution in route-to-market strategy, particularly in regions where a dedicated specification resource may be difficult to justify.

As for retirement, Miller dismisses the idea with a smile. “I’m a young 60,” he says. “I enjoy the buzz of business and I believe I still have something to contribute.”