About Double glazing doctor
With over 35 years of dedicated experience, Double Glazing Doctor has become a trusted name for window and door maintenance across the Brighton and Worthing. Mark has been repairing double glazing since 1991, building decades of hands-on knowledge in everything from replacement hinges, locks and handles to patio door wheels and sealed units — there isn’t a make of window he hasn’t come across. From Canada and later moving to Worthing, he takes real pride in serving the local community with honest advice and high-quality workmanship.
Founder Owned: Direct accountability from Mr. Mark Sparkes himself.
Artisanal Quality: We don't just fix; we restore with precision.
Local Integrity: Transparent quotes and honest, dependable service.
Why customers choose Double Glazing Doctor?
35+ Years of Expertise
With over three decades in the industry, Mr Mark Sparkes brings unparalleled knowledge to every repair, ensuring your windows and doors function like new.
Trusted by Local Residents
Our reputation is built on trust, with 1,323 Checkatrade reviews testifying to our commitment to quality service and professional craftsmanship.
No-Obligation Quotes
We believe in transparency. That’s why all our quotes are completely free and provided with zero pressure, so you can make the best decision for your home.
Independent & Local
As a family-owned business, we take personal pride in every job. You deal directly with Mark, ensuring attentive service and accountability that big firms can’t match.