London is a city that abounds with well-dressed men, but it is more than just good taste and tailoring that define their classic look. It is also their impeccable grooming—the flawless haircuts and professional shaves that seem to accompany a London man's Savile Row suit as naturally as a pair of bench-made shoes. It is no surprise, then, that you'll find in London some of the world's finest professional men's grooming services—provided that you know where to look.

In pursuit of the best barber, tailor, and purveyor of men’s grooming products, your first stop may take you to the neighborhood bordering Savile Row. Turnbull & Asser, whose specialty is the creation of custom-made shirts holds a Royal Warrant as shirtmaker to H.R.H the Prince of Wales, but it’s not just Prince Charles who avails himself of Turnbull & Asser’s services. A host of other luminaries, from upper echelon fashion designers and rock stars to sultans, prime ministers, and presidents, have patronised Turnbull & Asser, as well.

For bespoke suits, Savile Row abounds with options, but for bespoke suits at particularly reasonable prices, try Raja Fashions, third-generation tailors whose warehouse boasts an enormous stock of more than 20,000 fabrics from Hong Kong, Italy, and the U.K., including such top brands as Valentino Garavani, Dormeuil, Scabal, Fintex, Toni Tommi, and John Cooper. After customers are expertly measured, Raja sends precise specifications for each suit to veteran tailors in Hong Kong and China, who work their magic and save customers significant costs.

Looking perfectly dapper involves more than donning an impeccably tailored suit, of course. To round out a man’s elegant mien, there’s nothing quite like a professional shave and haircut befitting royalty, which is just what you may receive at Truefitt & Hill, barbers and Royal Warrant Holders to H.R.H, The Duke of Edinburgh. Revel in a haircut, a shave with hot towels, and perhaps a manicure at what the Guinness Book of World Records calls the oldest barbershop in the world.

Another option for an impeccable shave and haircut is Geo. F. Trumper, which is also renowned for its formidable array of gentlemen’s grooming products and accessories. You might want to sample the Bay Rum Cologne, concocted with an enlivening combination of crushed bay leaf and cloves, or the Extract of Lime Skin Food, a glycerin-based product that soothes and nourishes the skin both before and after shaving.